Near-field surround sound system

Abstract

Disclosed in the present invention is a near-field surround sound system, comprising: a headband main body which is provided with connecting parts at two ends; auxiliary clamping frames arranged adjacent to the upper ends of the connecting parts, wherein the auxiliary clamping frames are connected to the two side surfaces of the headband main body, and the curvature of the auxiliary clamping frames corresponds to the curvature of the two sides of the head; soft cushions arranged on the end surfaces of the headband main body and the auxiliary clamping frames in contact with the head; and near-ear loudspeaker modules, wherein two near-ear loudspeaker modules are provided and are respectively connected to the two connecting parts, each near-ear loudspeaker module comprises a plurality of loudspeaker units, and when a user wears the headband main body, the connecting parts are used for preventing the near-ear loudspeaker modules from coming into contact with the ears of the user. The near-field surround sound system comprises a top loudspeaker module, wherein the top loudspeaker module is connected to the headband main body and is approximately arranged at the top end of the headband main body, and a sound emitting surface faces the head. At least one of the two near-ear loudspeaker modules is provided with microphones.

Description

Near-field surround sound system Technical Field

[0001] The present application relates to the technical field of high-end headphone devices, in particular to near-field surround sound systems. Background Art

[0002] Headphones are generally divided into two categories, in-ear and head-mounted. Head-mounted headphones generally include a headphone stand and earmuffs, with the speakers of the headphones set in the earmuffs. Compared with in-ear headphones, head-mounted headphones can use larger speakers with better sound quality, so they are more popular among audiophiles who have high demands for listening to audio.

[0003] Currently, in-ear headphones are usually designed to be relatively closed in order to listen to audio effects. They rely on the elasticity of the bracket and the earmuffs to be worn on the user's head. After wearing them, users are prone to feeling hot and sweaty, which affects the user experience. In addition, they are prone to breeding bacteria and affecting the health of the user's ears. Summary of the Invention

[0004] The present invention mainly addresses the above problems and proposes a near-field surround sound system, which aims to improve the structure of headphones, solve the problem of stuffiness when wearing, and improve the sound quality of headphone playback.

[0005] To achieve the above object, the present invention provides a near-field surround sound system, comprising:

[0006] A bracket body, wherein both ends of the bracket body are provided with connecting parts;

[0007] A clamping sub-frame, the clamping sub-frame being arranged adjacent to the upper end of the connecting portion; the clamping sub-frame being connected to two side surfaces of the bracket body, and the curvature of the clamping sub-frame being arranged to correspond to the curvature of both sides of the head;

[0008] A flexible pad, the flexible pad being provided on the end surfaces of the bracket body, the clamping sub-frame and the head;

[0009] Near-ear speaker modules, there are two near-ear speaker modules, which are respectively connected to the two connecting parts; each group of the near-ear speaker modules includes multiple speaker units; when the user wears the bracket body, the connecting part is used to prevent the near-ear speaker modules from contacting the user's ears.

[0010] Furthermore, it includes a top speaker module, which is connected to the bracket body and is roughly located at the top of the bracket body, with the sound output surface facing the head.

[0011] Furthermore, it includes a mid-section speaker module, and at least one of the mid-section speaker modules is arranged in the clamping sub-frame, adjacent to the clamping sub-frame, or at any position in the connecting part; the mid-section speaker module is used to receive any one of the left and right surround channel signals, the upper left and right surround channel signals, the bass channel signal, and the center channel signal.

[0012] Furthermore, at least one of the two near-ear speaker modules is provided with a microphone.

[0013] Furthermore, when the bracket body is worn by the user, the distance between the near-ear speaker module and the auricle of the user's ear is 5 mm to 80 mm through the connecting portion.

[0014] Furthermore, the multiple speaker units in the near-ear speaker module include five full-range speaker units and one woofer unit, and are arranged in three layers; the number of the full-range speaker units in the middle layer is three, and the sound output ends of the two full-range speaker units and the woofer unit are respectively arranged above and below the full-range speaker units in the middle layer;

[0015] According to the correspondence between the near-ear speaker module and the left and right ears, the front-to-back layout relationship of the multiple speaker units in the near-ear speaker module is:

[0016] One of the full-range speaker units in the upper layer is used to receive the front upper surround channel signal, and the other full-range speaker unit in the upper layer is used to receive the rear upper surround channel signal;

[0017] The full-range speaker unit at the rear of the middle-layer full-range speaker unit is used to receive rear surround channel signals; the other two full-range speaker units, when the middle full-range speaker unit is used to receive front surround channel signals, the front full-range speaker unit is used to receive left and right channel signals, or, when the middle full-range speaker unit is used to receive left and right channel signals, the front full-range speaker unit is used to receive front surround channel signals;

[0018] The woofer speaker unit is used to receive a bass channel signal.

[0019] Furthermore, an external speaker is included; the multiple speaker units in the near-ear speaker module include five full-range speaker units arranged in two layers, the lower layer has three full-range speaker units, and the upper layer has two full-range speaker units;

[0020] According to the correspondence between the near-ear speaker module and the left and right ears, the front-to-back layout relationship of the multiple speaker units in the near-ear speaker module is:

[0021] One of the full-range speaker units on the front side of the upper layer is used to receive the front upper surround channel signal, and the full-range speaker unit on the rear side of the upper layer is used to receive the rear upper surround channel signal;

[0022] The full-range speaker unit at the rear of the full-range speaker unit in the lower layer is used to receive rear surround channel signals; the other two full-range speaker units, when the middle full-range speaker unit is used to receive front surround channel signals, the front full-range speaker unit is used to receive left and right channel signals, or, when the middle full-range speaker unit is used to receive left and right channel signals, the front full-range speaker unit is used to receive front surround channel signals;

[0023] The external speaker is used to receive bass channel signals.

[0024] Furthermore, the top speaker module is arranged on the front side of the bracket body; the top speaker module is a woofer unit or a full-range speaker unit, which is used to receive bass channel signals.

[0025] Furthermore, there is at least one top speaker module, which is arranged on the front side and / or the rear side of the bracket body and is used to receive surround channel signals.

[0026] Furthermore, the top speaker module includes two speaker units, which are respectively arranged on the front side of the bracket body, and on the lower end surface of the top of the bracket body or on the front side of the bracket body adjacent to the lower end surface of the top of the bracket body; the speaker unit arranged on the front side of the bracket body is used to receive the center channel signal; the speaker unit arranged on the lower end surface of the top of the bracket body or on the front side of the bracket body adjacent to the lower end surface of the top of the bracket body is used to receive the upper surround channel signal.

[0027] Furthermore, the top speaker module includes three speaker units, which are respectively arranged on the front and rear sides of the bracket body for receiving front and rear upper surround channel signals, and are arranged on the lower end surface of the top of the bracket body for receiving bass channel signals.

[0028] Furthermore, it includes a support plate, which is connected to at least the front side of the top end of the bracket body, and the curvature of the support plate is similar to the curvature of the top of the head; the top speaker module is connected to the bracket body through the support plate.

[0029] Furthermore, it includes a top front speaker unit provided on the top front side of the bracket body, for receiving the center channel signal; a motorized supplementary speaker unit provided on the rear side of the bracket body, for receiving the motorized supplementary channel signal; at least one middle section speaker module provided in the clamping sub-frame, adjacent to the clamping sub-frame, and at any position in the connecting portion, for receiving the motorized supplementary channel signal; the multiple speaker units in the near-ear speaker module include five full-range speaker units and one woofer unit, and are arranged in three layers; the number of the full-range speaker units in the middle layer is three, and the two full-range speaker units and the woofer unit are respectively provided on the upper and lower sides of the middle layer;

[0030] According to the correspondence between the near-ear speaker module and the left and right ears, the front-to-back layout relationship of the multiple speaker units in the near-ear speaker module is:

[0031] One of the full-range speaker units in the upper layer is used to receive the front upper surround channel signal, and the other full-range speaker unit in the upper layer is used to receive the rear upper surround channel signal;

[0032] The full-range speaker unit at the rear of the middle-layer full-range speaker unit is used to receive rear surround channel signals; the other two full-range speaker units, when the middle full-range speaker unit is used to receive front surround channel signals, the front full-range speaker unit is used to receive left and right channel signals, or, when the middle full-range speaker unit is used to receive left and right channel signals, the front full-range speaker unit is used to receive front surround channel signals;

[0033] The woofer speaker unit is used to receive a bass channel signal.

[0034] Furthermore, with the left ear canal entrance as the center origin, an X-axis and Y-axis plane rectangular coordinate system is introduced, with the negative axis of the Y-axis as the starting line; the near-field surround sound system is projected from a top-down perspective, and the layout of the speaker units on the top and left side of the near-field surround sound system is as follows:

[0035] The angle formed by the line connecting the position point of the full-range speaker unit in the front of the middle layer and the central origin and the starting line is 15° to 45°;

[0036] The angle formed by the line connecting the position point of the full-range speaker unit in the middle of the middle layer and the central origin and the starting line is 70° to 110°;

[0037] The angle formed by the line connecting the position point of the full-range speaker unit at the rear of the middle layer and the central origin and the starting line is 120° to 165°;

[0038] The angle formed by the line connecting the position point of the full-range speaker unit receiving the front upper surround channel signal and the center origin and the starting line is 65° to 80°;

[0039] The angle formed by the line connecting the position point of the full-range speaker unit receiving the rear upper surround channel signal on the upper layer and the center origin and the starting line is 110° to 125°;

[0040] The angle formed by the line connecting the top front speaker unit position point and the center origin and the starting line is -20° to -60°;

[0041] The angle formed by the line connecting the position point of the motorized supplementary loudspeaker unit and the center origin and the starting line is -110° to -150°;

[0042] With the left ear canal entrance as the center origin, introduce the X, Y, and Z axis space rectangular coordinate system, with the positive axis of the X axis as the starting line; when projecting the near-field surround sound system from a right-viewing perspective, the angle formed by the line connecting the position point of the full-range speaker unit on the upper left side of the near-field surround sound system and the center origin and the starting line is 30° to 70°

[0043] The multiple speaker units in the near-ear speaker module are two full-range speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the two full-range speaker units in the near-ear speaker module are arranged front to back. The front full-range speaker unit is used to receive the center channel signal or the left and right channel signals, and the rear full-range speaker unit is used to receive the rear left and right surround channel signals.

[0044] Furthermore, the multiple speaker units in the near-ear speaker module are three full-range speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the three full-range speaker units in the near-ear speaker module are arranged in the front, middle and rear positions.

[0045] The full-range speaker unit on the front side is used to receive any one of the front channel signals, the left and right channel signals, and the left and right front surround channel signals;

[0046] The full-range speaker unit in the middle is used to receive left and right front surround channel signals and either left or right channel signals;

[0047] The full-range speaker unit at the rear side is used to receive rear left and right surround channel signals.

[0048] Furthermore, the plurality of speaker units in the near-ear speaker module is three speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the three speaker units in the near-ear speaker module are arranged in two layers, and the number of the speaker units in the upper layer is two in a front-to-back arrangement;

[0049] The speaker unit on the front side of the upper layer is used to receive any one of the front channel signal, the left and right channel signal, the left and right front surround channel signal, and the center channel signal;

[0050] The speaker unit on the rear side of the upper layer is used to receive left and right rear surround sound channels;

[0051] The speaker unit in the lower layer is used to receive rear left and right bass channel signals.

[0052] Furthermore, the multiple speaker units in the near-ear speaker module are four speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four speaker units in the near-ear speaker module are arranged in two layers, and the number of the speaker units in the upper layer is three, arranged in a front, middle and rear manner.

[0053] The speaker unit on the front side of the upper layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0054] The speaker unit in the middle of the upper layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0055] The speaker unit on the rear side of the upper layer is used to receive left and right rear surround sound channels;

[0056] The speaker unit in the lower layer is used to receive rear left and right bass channel signals.

[0057] Furthermore, the multiple speaker units in the near-ear speaker module are four full-range speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four full-range speaker units in the near-ear speaker module are arranged in three layers, and the number of the full-range speaker units in the middle layer is two in a front-to-back arrangement;

[0058] The full-range speaker unit in the upper layer is used to receive left and right upper surround channel signals;

[0059] The full-range speaker unit on the front side of the middle layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0060] The full-range speaker unit at the rear side of the middle layer is used to receive left and right rear surround channel signals;

[0061] The full-range speaker unit in the lower layer is used to receive the center channel signal, the left and right channel signals, and any one of the left and right front surround channel signals.

[0062] Furthermore, the multiple speaker units in the near-ear speaker module are four full-range speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four full-range speaker units in the near-ear speaker module are arranged in two layers, and the number of full-range speaker units in the upper and lower layers is two in a front-to-back arrangement;

[0063] The full-range speaker unit on the front side of the upper layer is used to receive left and right upper front surround channel signals;

[0064] The full-range speaker unit at the rear side of the upper layer is used to receive left and right upper rear surround channel signals;

[0065] The full-range speaker unit on the front side of the lower layer is used to receive the center channel signal and either the left or right channel signal;

[0066] The full-range speaker unit at the rear side of the lower layer is used to receive left and right surround channel signals.

[0067] Furthermore, the plurality of speaker units in the near-ear speaker module is five speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four speaker units in the near-ear speaker module are arranged in two layers, and the number of speaker units in the upper and lower layers is two in a front-to-back arrangement, and the fifth speaker unit is arranged between the four speaker units.

[0068] The speaker unit on the front side of the upper layer is used to receive left and right upper front surround channel signals;

[0069] The speaker unit on the rear side of the upper layer is used to receive left and right upper rear surround channel signals;

[0070] The speaker unit on the front side of the lower layer is used to receive the center channel signal and either the left or right channel signal;

[0071] The speaker unit at the rear side of the lower layer is used to receive left and right surround channel signals;

[0072] The fifth speaker unit is used to receive left and right bass channel signals.

[0073] Furthermore, the plurality of speaker units in the near-ear speaker module is five speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the five speaker units in the near-ear speaker module are arranged in three layers, and the number of the speaker units in the middle layer is three, arranged in a front-middle-rear arrangement.

[0074] The upper speaker unit is used to receive left and right upper front surround channel signals;

[0075] The speaker unit on the front side of the middle layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0076] The speaker unit in the middle of the middle layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0077] The speaker unit at the rear side of the middle layer is used to receive left and right rear surround channel signals;

[0078] The speaker unit at the lower layer is used to receive bass channel signals.

[0079] Furthermore, the near-ear speaker module is adjustably connected to the bracket body through the connecting portion. When the bracket body is worn by the user, the near-ear speaker module can be adjusted to a distance of 0mm to 80mm from the user's ear auricle through the connecting portion.

[0080] Compared with the existing technology, the near-field surround sound system provided by the present invention can solve the problem of stuffiness and sweating caused by traditional headphones enclosing the user's ears. Moreover, by setting multiple speaker units in the near-ear speaker module, compared with the sound-emitting unit of a single speaker, multiple speaker units can constitute a near-field surround sound system with a better sound quality experience; the curvature of the clamping sub-frame is designed to correspond to the curvature on both sides of the head, so that the clamping sub-frame can be more closely attached to the user's head and the connection is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] FIG1 is a front view of the near-field surround sound system of the present application.

[0082] FIG2 is a right side view of the near-field surround sound system of the present application.

[0083] FIG3 is a schematic diagram of a tenth embodiment of the near-field surround sound system of the present application.

[0084] FIG4 is a schematic structural diagram of Embodiment 6, Embodiment 7, Embodiment 8, and Embodiment 9 of the near-field surround sound system of the present application.

[0085] FIG5 is a schematic diagram of the eleventh embodiment of the near-field surround sound system of the present application.

[0086] FIG6 is a schematic structural diagram of embodiments 12 to 17 of the near-field surround sound system of the present application.

[0087] FIG7 is a schematic structural diagram of the eighteenth embodiment of the near-field surround sound system of the present application.

[0088] FIG8 is a schematic structural diagram of a nineteenth embodiment of the near-field surround sound system of the present application.

[0089] FIG9 is a schematic structural diagram of embodiment 21 of the near-field surround sound system of the present application.

[0090] FIG10 is a schematic structural diagram of embodiment 22 or embodiment 23 of the near-field surround sound system of the present application.

[0091] FIG11 is a schematic diagram showing the distribution of speaker units of the twenty-second or twenty-third embodiment of the near-field surround sound system of the present application.

[0092] FIG12 is a schematic diagram showing the distribution of speaker units of the twenty-second or twenty-third embodiment of the near-field surround sound system of the present application.

[0093] FIG13 is a schematic diagram showing the distribution of speaker units of the twenty-second or twenty-third embodiment of the near-field surround sound system of the present application.

[0094] FIG14 is a schematic structural diagram of the near-field surround sound system of the present application when the side projection outline of the connection portion is a curved arc structure.

[0095] FIG15 is a schematic structural diagram of another embodiment of the near-field surround sound system of the present application, in which the side projection outline of the connection portion is a curved arc structure.

[0096] FIG16 is a schematic diagram showing the distribution of speaker units in the twenty-fourth embodiment of the near-field surround sound system of the present application.

[0097] FIG17 is a schematic diagram showing the distribution of speaker units in the twenty-fifth embodiment of the near-field surround sound system of the present application.

[0098] FIG18 is a schematic diagram showing the distribution of speaker units in the twenty-sixth embodiment of the near-field surround sound system of the present application.

[0099] FIG19 is a schematic diagram showing the distribution of speaker units in the twenty-seventh embodiment of the near-field surround sound system of the present application.

[0100] FIG20 is a schematic diagram showing the distribution of speaker units in the twenty-eighth embodiment of the near-field surround sound system of the present application.

[0101] FIG21 is a schematic diagram showing the distribution of speaker units in the twenty-ninth embodiment of the near-field surround sound system of the present application.

[0102] FIG22 is a schematic diagram showing the distribution of speaker units in the 30th embodiment of the near-field surround sound system of the present application.

[0103] FIG23 is a schematic diagram showing the distribution of speaker units in Example 31 of the near-field surround sound system of the present application.

[0104] The reference numerals shown in the figure are: 1. bracket body; 110. connecting part; 2. clamping sub-frame; 210. front splint; 220. rear splint; 3. flexible pad; 4. near-ear speaker module; 410. front upper speaker; 420. rear upper speaker; 430. middle-middle speaker; 440. middle-front speaker; 450. middle-rear speaker; 460. lower low speaker; 5. top speaker module; 510. front top speaker; 520. rear top speaker; 530. middle top speaker; 540. top-front speaker unit; 550. top-front speaker; 6. middle speaker module; 710. receiving microphone; 720. signal acquisition microphone; 8. external speaker; 9. support plate; 910. support front plate; 920. support rear plate; 10. motorized supplementary speaker unit. DETAILED DESCRIPTION

[0105] 1 to 23 , this embodiment provides a near-field surround sound system, including:

[0106] The bracket body 1 has connecting parts 110 at both ends;

[0107] A clamping sub-frame 2, the clamping sub-frame 2 being disposed adjacent to the upper end of the connecting portion 110; the clamping sub-frame 2 being connected to two side surfaces of the bracket body 1, the curvature of the clamping sub-frame 2 being configured to correspond to the curvature of both sides of the head;

[0108] A flexible pad 3, the flexible pad 3 being provided on the end surfaces where the bracket body 1, the clamping sub-frame 2 and the head are in contact;

[0109] The near-ear speaker module 4 is two in number and is respectively connected to the two connecting parts 110; each group of the near-ear speaker modules 4 includes multiple speaker units; when the user wears the bracket body 1, the connecting part 110 is used to prevent the near-ear speaker module 4 from contacting the user's ear.

[0110] When the headset is worn on the user's head, the connection position of the connecting part 110 and the bracket body 1 is located at the upper end of the user's ear at a horizontal height. The connecting part 110 can be a frame or plate structure integrated with the bracket body 1. Starting from the connection with the bracket body 1, it extends obliquely away from the user's ear, and the other end is connected to the near-ear speaker module 4, so that the near-ear speaker module 4 does not touch the user's ear; since traditional headphones mainly rely on the earmuffs to enclose and clamp the user's ears and head to play a role in stable wearing, this embodiment adopts the original earmuff position without setting a structure to enclose and clamp the user's ears and head, but uses a clamping sub-frame 2 to clamp the two sides of the user's head, that is, the area near the ear roots of the two ears, thereby solving the problem of stability of the connection between the headset and the user's head.

[0111] Therefore, this near-field surround sound system not only solves the problem of stuffiness and sweating caused by traditional headphones covering the user's ears, but also, by setting multiple speaker units in the near-ear speaker module 4, multiple speaker units can constitute a near-field surround sound system compared to a single speaker sound unit, which has a better sound quality experience.

[0112] In some embodiments, the clamping sub-frame 2 can be a structure integrated with the bracket main body 1, and can be a frame body or a plate body; it is divided into two parts, the clamping sub-frame 2 extending forward from the two side surfaces of the bracket main body 1 is the front splint 210, and the clamping sub-frame 2 extending backward from the two side surfaces of the bracket main body 1 is the rear splint 220; when viewed from the side perspective of the present headset, the connection projection outline of the clamping sub-frame 2 and the bracket main body 1 is in the shape of a "cross", but the projection outlines of the front splint 210 and the rear splint 220 are not limited to straight arm shapes. Please refer to Figures 14 and 15, which show that the clamping sub-frame 2 has an arc-curved projection outline, with the ends facing upward in the horizontal direction and the ends facing downward in the horizontal direction, respectively.

[0113] Designing the curvature of the clamping sub-frame 2 to correspond to the curvature of the sides of the head allows the clamping sub-frame 2 to adhere more closely to the user's head, resulting in a more stable connection. In some embodiments, the clamping sub-frame 2 is adjustable to the bracket body 1 to adjust the clamping force of the headset on the user's head. For example, the clamping sub-frame 2 is a metal shaped hose structure that can be directly adjusted manually. The clamping sub-frame 2 is hingedly connected to the bracket body 1, and the elastic force of the torsion spring acts on the clamping sub-frame 2, causing the clamping sub-frame 2 to rotate toward the user's head.

[0114] By providing the flexible pad 3, a buffering and decompression effect can be achieved, thereby improving the wearing comfort of the user. In some embodiments, the flexible pad 3 is a vibration isolation sponge.

[0115] Please refer to FIG. 2 and FIG. 6 to FIG. 11 , which include a top speaker module 5 , which is connected to the bracket body 1 and is roughly located at the top of the bracket body 1 , with the sound emitting surface facing the head.

[0116] Example 1

[0117] By adding a top speaker module 5 with the sound output surface facing the user's head at the top of the bracket body 1, combined with the debugging of electronic hardware and software, the completeness of the near-field surround sound system can be further enhanced, greatly enhancing the user experience, comparable to a standard professional home theater audio system.

[0118] Please refer to Figures 3, 4 and 10, which include a mid-section speaker module 6. At least one of the mid-section speaker modules 6 is arranged in the clamping sub-frame 2, adjacent to the clamping sub-frame 2, or at any position in the connecting portion 110; the mid-section speaker module 6 is used to receive any one of left and right surround channel signals, left upper and right upper surround channel signals, left front and right front surround channel signals, left rear and right rear surround channel signals, bass channel signals, and center channel signals.

[0119] Example 2

[0120] Referring to Figure 3 , the center speaker module 6 comprises two speaker units. For example, the left side of the headset is equipped with a speaker unit located on the front and rear plates 210 and 220 of the left sub-frame 2. These two units receive the left front and left rear surround channel signals, respectively. The speaker units in the right sub-frame 2 receive the right front and right rear surround channel signals, respectively. By combining this with the electronic hardware and software, a near-field surround sound system can be constructed.

[0121] Example 3

[0122] Referring to Figure 3 , the center speaker module 6 comprises two speaker units. For example, the left side of the headset is equipped with a speaker unit located on the front and rear plates 210 and 220 of the left sub-frame 2. These two units receive the left front upper and left rear upper surround channel signals, respectively. The speaker units in the right sub-frame 2 receive the right front upper and right rear upper surround channel signals, respectively. By combining this with the electronic hardware and software, a near-field surround sound system can be constructed.

[0123] Example 4

[0124] Please refer to Figure 3. There are two speaker units in the middle speaker module 6. Taking the left half of the present earphone as an example, a speaker unit is respectively set in the front clamping plate 210 and the rear clamping plate 220 of the left half of the clamping sub-frame 2. Both speaker units receive bass channel signals. The speaker unit in the right half of the clamping sub-frame 2 also receives bass channel signals.

[0125] Example 5

[0126] Please refer to Figure 3. The number of speaker units in the middle speaker module 6 is two. Taking the left half of the present earphone as an example, a speaker unit is respectively provided in the front clamping plate 210 and the rear clamping plate 220 of the left half of the clamping sub-frame 2. The two speaker units receive the front and rear center channel signals respectively. The speaker units in the right half of the clamping sub-frame 2 also receive the front and rear center channel signals respectively.

[0127] Example 6

[0128] Referring to Figure 4 , the center speaker module 6 comprises a single speaker unit. Taking the left half of the headset as an example, this speaker unit is positioned adjacent to the sub-holder 2. In one embodiment, this speaker unit is positioned between the front and rear plates 210 and 220, i.e., within the bracket body 1, slightly above the sub-holder 2. This unit receives the left surround channel signal, while the symmetrically positioned speaker unit on the right half receives the right surround channel signal.

[0129] Example 7

[0130] Referring to Figure 4 , the center speaker module 6 comprises a single speaker unit. Taking the left half of the headset as an example, this speaker unit is positioned adjacent to the sub-holder 2. In one embodiment, this speaker unit is positioned between the front and rear plates 210 and 220, i.e., within the bracket body 1, slightly above the sub-holder 2. It receives the upper left surround channel signal, while the speaker unit at a symmetrical position on the right half receives the upper right surround channel signal.

[0131] Example 8

[0132] Referring to Figure 4 , the middle speaker module 6 comprises a single speaker unit. Taking the left half of the headset as an example, this speaker unit is positioned adjacent to the sub-holder 2. In one embodiment, this speaker unit is positioned between the front and rear plates 210 and 220, i.e., within the bracket body 1, slightly above the sub-holder 2. This unit receives bass channel signals, while a symmetrical speaker unit on the right half also receives bass channel signals.

[0133] Embodiment 9

[0134] Referring to Figure 4 , the center speaker module 6 comprises a single speaker unit. Taking the left side of the headset as an example, this speaker unit is positioned adjacent to the sub-holder 2. In one embodiment, this speaker unit is positioned between the front and rear plates 210 and 220, i.e., within the bracket body 1, slightly above the sub-holder 2. It receives the center channel signal, while the symmetrically positioned speaker unit on the right side also receives the center channel signal.

[0135] Referring to Figure 10 , in a preferred embodiment, using the left half of the system as an example, the middle speaker module 6 is located within the connecting portion 110 on the left half. Compared to Embodiments 2 through 9, where the sound output of the middle speaker module 6 may come into contact with the user's head, being blocked and affecting sound output, this embodiment provides a more reasonable arrangement. The middle speaker module 6, located within the connecting portion 110, is configured to receive any of the following: left and right surround channel signals, upper left and right surround channel signals, left front and right front surround channel signals, left rear and right rear surround channel signals, subwoofer channel signals, and center channel signals. The speaker units located symmetrically on the right half also receive the corresponding channel signals.

[0136] 1 to 3 , at least one of the two near-ear speaker modules 4 is provided with a microphone.

[0137] In some embodiments, there are two microphones, one of which is a receiving microphone 710, which is located at the edge of the near-ear speaker module 4 on the right side and extends toward the user's mouth to collect the sound of the user's voice call. The other microphone is a signal collection microphone 720, which is located above the multiple speaker units in the near-ear speaker module 4. It collects the sound output by the multiple speaker units and then transmits it to the relevant analysis and processing module for analysis to adjust the optimal output effect in real time. It can also collect the external sound environment and automatically adjust the external volume of the near-ear speaker module 4 and other speaker units connected or indirectly connected to the bracket body 1.

[0138] This function can be implemented using existing technology and is not the focus of innovation in this application, so it will not be described in detail here.

[0139] Preferably, when the bracket body is worn by the user, the distance between the near-ear speaker module and the auricle of the user's ear is 5 mm to 80 mm through the connecting portion.

[0140] Through experimental tests, it was found that the distance between the near-ear speaker module 4 and the user's ear is 5mm to 80mm, which provides the best audio listening experience and solves the problem of stuffiness and sweating caused by the earphone user's ears being enclosed.

[0141] 3 , the multiple speaker units in the near-ear speaker module 4 include five full-range speaker units and one woofer unit, and are arranged in three layers; the number of the full-range speaker units in the middle layer is three, and the sound output ends of the two full-range speaker units and the woofer unit are respectively arranged above and below the full-range speaker units in the middle layer;

[0142] According to the correspondence between the near-ear speaker module 4 and the left and right ears, the front-to-back layout relationship of the multiple speaker units in the near-ear speaker module 4 is:

[0143] One of the full-range speaker units in the upper layer is used to receive the front upper surround channel signal, and the other full-range speaker unit in the upper layer is used to receive the rear upper surround channel signal;

[0144] The full-range speaker unit at the rear of the middle-layer full-range speaker unit is used to receive rear surround channel signals; the other two full-range speaker units, when the middle full-range speaker unit is used to receive front surround channel signals, the front full-range speaker unit is used to receive left and right channel signals, or, when the middle full-range speaker unit is used to receive left and right channel signals, the front full-range speaker unit is used to receive front surround channel signals;

[0145] The woofer speaker unit is used to receive a bass channel signal.

[0146] Example 10

[0147] The specific embodiment of this invention is as follows: taking the left half of the headset as an example, in the left near-ear speaker module 4, in the upper full-range speaker unit, the full-range speaker unit located on the front side is the front upper speaker 410 for receiving the left front upper surround channel signal, and the full-range speaker unit located on the rear side is the rear upper speaker 420 for receiving the left rear upper surround channel signal. The two speakers on the right half of the headset, which are symmetrically arranged with the front upper speaker 410 and the rear upper speaker 420 on the left half of the headset, receive the right front upper surround channel signal and the right rear upper surround channel signal respectively.

[0148] Taking the left half of this headset as an example, when using this system, a user can use movie mode when watching a movie, which requires a surround system corresponding to a home theater. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle layer of full-range speaker units is the center-center speaker 430, which is used to receive the left front surround channel signal, the full-range speaker unit located at the front is the center-front speaker 440, which is used to receive the left channel signal, and the full-range speaker unit located at the rear is the center-rear speaker 450, which is used to receive the left rear surround channel signal. The three speakers on the right half of this headset, symmetrically arranged with the center-center speaker 430, the center-front speaker 440, and the center-rear speaker 450 on the left half of this headset, receive the right front surround channel signal, the right channel signal, and the right rear surround channel signal, respectively.

[0149] Taking the left half of this headset as an example, when using this system, a user needs to refer to the actual orientation mode when playing games. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle layer of full-range speaker units is the center-center speaker 430 for receiving the left channel signal, the full-range speaker unit located on the front side is the center-front speaker 440 for receiving the left front surround channel signal, and the full-range speaker unit located on the rear side is the center-rear speaker 450 for receiving the left rear surround channel signal. The three speakers on the right half of this headset, symmetrically arranged with the center-center speaker 430, the center-front speaker 440, and the center-rear speaker 450 on the left half of this headset, receive the right channel signal, the right front surround channel signal, and the right rear surround channel signal, respectively.

[0150] Taking the left half of this headset as an example, the bass speaker unit located below the middle full-range speaker unit in the left near-ear speaker module 4 is the lower bass speaker 460, which is used to receive bass channel signals. The speakers on the right half of this headset, symmetrically located with the lower bass speaker 460, also receive bass channel signals.

[0151] In some embodiments, the lower bass speaker 460 is not limited to a woofer speaker unit, and a full-range speaker unit may also be used.

[0152] In some embodiments, the woofer unit, namely the lower bass speaker 460, is located below the full-range speaker unit in the middle layer.

[0153] In some embodiments, the housing of the near-ear speaker module is provided with a sound outlet corresponding to the sound outlet of the woofer unit. The woofer unit, i.e., the lower woofer 460, is not positioned below the middle full-range speaker unit. Instead, the sound outlet of the lower woofer 460 is positioned below the middle full-range speaker unit. This is a solution where the lower woofer 460 is positioned behind the middle full-range speaker unit when the lower woofer 460 is larger, and sound is emitted through the sound outlet. This arrangement optimizes the space occupied by the near-ear speaker module 4.

[0154] Please refer to Figures 3 and 5, including an external speaker 8; the multiple speaker units in the near-ear speaker module 4 include five full-range speaker units arranged in two layers, the lower layer having three full-range speaker units and the upper layer having two full-range speaker units;

[0155] According to the correspondence between the near-ear speaker module 4 and the left and right ears, the front-to-back layout relationship of the multiple speaker units in the near-ear speaker module 4 is:

[0156] One of the full-range speaker units on the front side of the upper layer is used to receive the front upper surround channel signal, and the full-range speaker unit on the rear side of the upper layer is used to receive the rear upper surround channel signal;

[0157] The full-range speaker unit at the rear of the full-range speaker unit in the lower layer is used to receive rear surround channel signals; the other two full-range speaker units, when the middle full-range speaker unit is used to receive front surround channel signals, the front full-range speaker unit is used to receive left and right channel signals, or, when the middle full-range speaker unit is used to receive left and right channel signals, the front full-range speaker unit is used to receive front surround channel signals;

[0158] The external speaker 8 is used to receive bass channel signals.

[0159] Example 11

[0160] Compared to Example 10, Example 11 eliminates the lower bass speakers 460 in the left and right near-ear speaker modules 4. Instead, an external speaker 8 is used with the left and right near-ear speaker modules 4 to form a surround sound system that combines far-field and near-field sound. Since the external speaker 8 is a single speaker, it can be easily moved. Therefore, compared to fixed professional-grade near-field surround sound systems and home theater speakers, which are multiple speakers placed throughout the room according to predetermined rules, the solution provided by this application is different from fixed professional-grade near-field surround sound systems and home theater speakers. When the user moves around and leaves the optimal listening area, the listening effect is reduced. The near-field speaker system in this embodiment and the previous embodiments is an open system. The sound emitted by the far-field bass speaker can be transmitted to the human ear without obstruction, achieving the purpose of combining far-field and near-field playback and complementing each other. Moreover, the near-field speaker system can be worn on the user's head at all times and can move with the user. Each speaker unit maintains a distance from the user's ears, and the range does not change significantly. The external speaker 8 can be easily moved by the user, so the listening effect can be continuously maintained, without affecting the user's activities, and the experience is better.

[0161] When the external speaker 8 can be a speaker with its own battery, it can be connected through a wireless module, such as a Bluetooth module, to form a system with each speaker unit connected or indirectly connected to the bracket body 1, and play the sound of the corresponding frequency in the audio through the allocation of corresponding software and modules.

[0162] 2 and 6 , the top speaker module 5 is disposed on the front side of the bracket body 1 ; the top speaker module 5 is a woofer unit or a full-range speaker unit for receiving bass channel signals.

[0163] Example 12

[0164] The top speaker module 5 provided on the front side of the bracket body 1 is a front top speaker 510, which is used to receive bass channel signals and together with multiple speaker units in the near-ear speaker module 4 form a near-field surround sound system, providing a better sound quality experience.

[0165] 2 and 6 , there is at least one top speaker module 5 , which is disposed on the front and / or rear side of the bracket body 1 for receiving surround channel signals.

[0166] Example 13

[0167] 2 and 6 , there is one top speaker module 5 , which is disposed on the front side of the bracket body 1 . The top speaker module 5 is a front top speaker 510 for receiving upper surround channel signals.

[0168] Example 14

[0169] 6 , there is one top speaker module 5 disposed at the rear side of the bracket body 1 . The top speaker module 5 is a rear top speaker 520 for receiving upper surround channel signals.

[0170] Example 15

[0171] 6 , there is one top speaker module 5 , which is disposed at the rear side of the bracket body 1 . The top speaker module 5 is a rear top speaker 520 for receiving rear upper surround channel signals.

[0172] Example 16

[0173] Please refer to Figure 6, there are two top speaker modules 5, one of which is located on the front side of the bracket body 1, and the top speaker module 5 is the front top speaker 510, and the other is located on the rear side of the bracket body 1, and the top speaker module 5 is the rear top speaker 520, both of which are used to receive the upper surround channel signal.

[0174] Example 17

[0175] Please refer to Figure 6, there are two top speaker modules 5, one of which is located on the front side of the bracket body 1, and the top speaker module 5 is the front top speaker 510, which is used to receive the front surround channel signal; the other is located on the rear side of the bracket body 1, and the top speaker module 5 is the rear top speaker 520, which is used to receive the rear upper surround channel signal.

[0176] The top speaker module 5 includes two speaker units, which are respectively arranged on the front side of the bracket body 1, and on the lower end surface of the top of the bracket body 1 or on the front side of the bracket body 1 adjacent to the lower end surface of the top of the bracket body 1; the speaker unit arranged on the front side of the bracket body 1 is used to receive the center channel signal; the speaker unit arranged on the lower end surface of the top of the bracket body 1 or on the front side of the bracket body 1 adjacent to the lower end surface of the top of the bracket body 1 is used to receive the upper surround channel signal.

[0177] Embodiment 18

[0178] Please refer to Figure 7. The top speaker module 5 provided on the front side of the bracket body 1 is a front top speaker 510, which is used to receive the center channel signal; the top speaker module 5 provided on the lower end surface of the top of the bracket body 1 is a center top speaker 530, which is used to receive the upper surround channel signal.

[0179] Example 19

[0180] Please refer to Figure 8. The top speaker module 5 provided on the front side of the bracket body 1 is a front top speaker 510, which is used to receive the center channel signal; the top speaker module 5 provided on the front side of the bracket body 1 adjacent to the lower end surface of the top of the bracket body 1 is a top front speaker 550, which is used to receive the upper surround channel signal.

[0181] Example 20

[0182] Please refer to Figure 2. The top speaker module 5 provided on the front side of the bracket body 1 is a front top speaker 510, which is used to receive the center channel signal; the top speaker module 5 provided on the rear side of the bracket body 1 adjacent to the lower end surface of the top of the bracket body 1 is a top rear speaker (not shown), which is used to receive the upper surround channel signal.

[0183] Example 21

[0184] 9 , the top speaker module 5 includes three speaker units, which are respectively arranged on the front and rear sides of the bracket body 1 for receiving upper surround channel signals and on the lower end surface of the top of the bracket body 1 for receiving bass channel signals.

[0185] Please refer to Figures 8 and 9, which include a support plate 9, which is connected to at least the front side of the top of the bracket body 1, and the curvature of the support plate 9 is similar to the curvature of the top of the head; the top speaker module 5 is connected to the bracket body 1 through the support plate 9.

[0186] The curvature of the support plate 9 is similar to the curvature of the top of the head, which can make the support plate 9 fit more closely to the user's head and the connection more stable.

[0187] The support plates 9 are arranged according to the position and number of the top speaker modules 5. The plate structure connected to the front side of the top of the bracket body 1 is the support front plate 910, and the plate structure connected to the rear side of the top of the bracket body 1 is the support rear plate 920. The support front plate 910 and the support rear plate 920 can be structures integral with the bracket body 1, and can be a frame or a plate.

[0188] The support front plate 910 extends from the front connection with the top end of the support body 1 toward the forehead of the head. The support rear plate 920 extends from the rear connection with the top end of the support body 1 toward the back of the head.

[0189] When the support plate 9 adopts a structure with both a support front plate 910 and a support rear plate 920, it cooperates with the clamping sub-frame 2 to further improve the user's wearing stability. Preferably, the end surfaces of the support plate 9 and the clamping sub-frame 2 that are attached to the user's head are provided with flexible pads to improve comfort.

[0190] Currently, audio files are primarily played back through devices like speakers and headphones. Home theater sound systems can play back multi-channel audio content, creating an immersive experience. However, most multi-channel home theater sound systems suffer from issues such as indoor wiring that affects the aesthetics of the interior, speaker placement that takes up space, later installation that affects existing interior decor, and the sound being played that disturbs people around. Therefore, this near-field surround sound system provides the following specific solutions to address these pain points in existing technologies:

[0191] Example 22

[0192] Referring to FIG10 , the system includes a top front speaker unit 540 disposed on the top front side of the bracket body 1 for receiving a center channel signal; a motorized supplementary speaker unit 10 disposed on the rear side of the bracket body 1 for receiving a motorized supplementary channel signal; at least one mid-section speaker module 6 disposed in the clamping sub-frame 2, adjacent to the clamping sub-frame 2, and at any position in the connecting portion 110 for receiving a motorized supplementary channel signal; the multiple speaker units in the near-ear speaker module 4 include five full-range speaker units and one woofer unit, and are disposed in three layers; the middle layer includes three full-range speaker units, with two full-range speaker units and the woofer unit disposed at the upper and lower portions of the middle layer, respectively;

[0193] According to the correspondence between the near-ear speaker module 4 and the left and right ears, the front-to-back layout relationship of the multiple speaker units in the near-ear speaker module 4 is:

[0194] One of the full-range speaker units in the upper layer is used to receive the front upper surround channel signal, and the other full-range speaker unit in the upper layer is used to receive the rear upper surround channel signal;

[0195] The full-range speaker unit at the rear of the middle-layer full-range speaker unit is used to receive rear surround channel signals; the other two full-range speaker units, when the middle full-range speaker unit is used to receive front surround channel signals, the front full-range speaker unit is used to receive left and right channel signals, or, when the middle full-range speaker unit is used to receive left and right channel signals, the front full-range speaker unit is used to receive front surround channel signals;

[0196] The woofer speaker unit is used to receive a bass channel signal.

[0197] The specific embodiment of this invention is as follows: taking the left half of the headset as an example, in the left near-ear speaker module 4, in the upper full-range speaker unit, the full-range speaker unit located on the front side is the front upper speaker 410 for receiving the right front and left front upper surround channel signals, and the full-range speaker unit located on the rear side is the rear upper speaker 420 for receiving the left rear upper surround channel signals. The two speakers symmetrically arranged on the left half of the headset and the right half of the headset, the front upper speaker 410 and the rear upper speaker 420, respectively receive the right front upper surround channel signals and the right rear upper surround channel signals.

[0198] Taking the left half of this headset as an example, when using this system, a user can use movie mode when watching a movie, which requires a surround system corresponding to a home theater. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle layer of full-range speaker units is the center-center speaker 430, which is used to receive the left front surround channel signal, the full-range speaker unit located at the front is the center-front speaker 440, which is used to receive the left channel signal, and the full-range speaker unit located at the rear is the center-rear speaker 450, which is used to receive the left rear surround channel signal. The three speakers on the right half of this headset, symmetrically arranged with the center-center speaker 430, the center-front speaker 440, and the center-rear speaker 450 on the left half of this headset, receive the right front surround channel signal, the right channel signal, and the right rear surround channel signal, respectively.

[0199] Taking the left half of this headset as an example, when using this system, a user needs to refer to the actual orientation mode when playing games. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle layer of full-range speaker units is the center-center speaker 430 for receiving the left channel signal, the full-range speaker unit located on the front side is the center-front speaker 440 for receiving the left front surround channel signal, and the full-range speaker unit located on the rear side is the center-rear speaker 450 for receiving the left rear surround channel signal. The three speakers on the right half of this headset, symmetrically arranged with the center-center speaker 430, the center-front speaker 440, and the center-rear speaker 450 on the left half of this headset, receive the right channel signal, the right front surround channel signal, and the right rear surround channel signal, respectively.

[0200] Taking the left half of this headset as an example, the bass speaker unit located below the middle full-range speaker unit in the left near-ear speaker module 4 is the lower bass speaker 460, which is used to receive bass channel signals. The speakers on the right half of this headset, symmetrically located with the lower bass speaker 460, also receive bass channel signals.

[0201] The mobile supplementary speaker unit 10 and the middle section speaker module 6 can serve as a mobile supplement to the system sound effects.

[0202] In some embodiments, the lower bass speaker 460 is not limited to a woofer speaker unit, and a full-range speaker unit may also be used.

[0203] In some embodiments, the bass speaker unit, i.e., the lower woofer 460, is not positioned below the middle full-range speaker unit. Instead, the sound outlet of the lower woofer 460 is positioned below the middle full-range speaker unit. If the lower woofer 460 is larger, it is positioned behind the middle full-range speaker unit, or behind both the upper full-range speaker unit and the middle full-range speaker unit. The lower woofer 460 emits sound through the sound outlet opening of the housing of the near-ear speaker module 4.

[0204] This system of speaker unit structure arrangement and channel signal distribution enables the system to realize a 7.2.4 surround sound speaker system and achieve the sound effect of the system.

[0205] Because both left and right near-ear speaker modules 4 are equipped with woofer units for balance, if only one of the two near-ear speaker modules 4 is equipped with a woofer unit, then the headset corresponds to a 7.1.4 surround sound speaker system. Alternatively, if neither of the left and right near-ear speaker modules 4 is equipped with a woofer unit, and an external speaker 8 that receives bass channel signals is used in conjunction with the headset, a 7.1.4 surround sound speaker system is also implemented.

[0206] Example 23

[0207] When the left and right near-ear speaker modules 4 in Example 22 are not provided with an upper full-range speaker unit, or are provided with an upper full-range speaker unit but the upper surround channel signal is not transmitted to the upper full-range speaker unit, then the headset corresponds to a 7.2 surround sound speaker system and realizes the sound effect of the system;

[0208] Because both left and right near-ear speaker modules 4 are equipped with woofer units for balance, if only one of the two near-ear speaker modules 4 is equipped with a woofer unit, then the headset corresponds to a 7.1 surround sound speaker system. Alternatively, if neither of the left and right near-ear speaker modules 4 is equipped with a woofer unit, and an external speaker 8 that receives bass channel signals is used in conjunction with the headset, a 7.1 surround sound speaker system is also implemented.

[0209] Through the layout setting of Example 22 or Example 23, this system is improved into a miniaturized surround sound or panoramic sound system. After the user starts playing audio, the audio file signal is given to the decoder on the main control board, and the decoder distributes the signals of each channel. The DSP adjusts the combination of EQ settings, Gain increase and decrease, output limiting protection (DRC), phase, delay and other signal values ​​of each channel such as left and right surround, front and rear surround, center and top surround, and gives it to the power amplifier. The power amplifier gives the amplified signal to each channel. After the signal of each channel is received by each corresponding speaker unit, it is played out to present the user with a perfect surround sound field or panoramic sound field. The main control board is connected to the device that pushes and plays audio through a headphone cable, and a wireless module, such as Bluetooth, can also be used to connect to the device that pushes and plays audio.

[0210] Referring to Figures 11 to 13 , with the left ear canal entrance as the center origin O, an X- and Y-axis rectangular coordinate system is introduced, with the negative axis of the Y-axis as the starting line -YO; when projecting the near-field surround sound system from a top-down perspective, the layout of the speaker units on the top and left side of the near-field surround sound system is as follows:

[0211] The angle formed by the line connecting the position point of the full-range speaker unit at the front of the middle layer, that is, the center front speaker 440 and the center origin and the starting line is 15° to 45°;

[0212] The angle formed by the line connecting the position point of the full-range speaker unit in the middle of the middle layer, that is, the middle speaker 430 and the center origin and the starting line is 70° to 110°;

[0213] The angle formed by the line connecting the position point of the full-range speaker unit at the rear of the middle layer, that is, the center rear speaker 450 and the center origin and the starting line is 120° to 165°;

[0214] The angle formed by the line GO connecting the position point G of the full-range loudspeaker unit receiving the front upper surround channel signal and the center origin O and the starting line -YO is 65° to 80°;

[0215] The angle formed by the line HO connecting the position point H of the full-range speaker unit receiving the rear upper surround channel signal and the center origin O and the starting line -YO is 110° to 125°;

[0216] The angle formed by the line DO connecting the position point D of the top front speaker unit 540 and the center origin O and the starting line -YO is -20° to -60°;

[0217] The angle formed by the line EO connecting the position point E of the motorized supplementary speaker unit 10 and the center origin O and the starting line -YO is -110° to -150°;

[0218] With the entrance of the left ear canal as the center origin O, an X, Y, and Z-axis spatial rectangular coordinate system is introduced, with the positive axis of the X-axis as the starting line XO; the near-field surround sound system is projected from a right-viewing perspective, and the angle formed by the line FO connecting the position point F of the full-range speaker unit on the upper left side of the near-field surround sound system and the center origin O and the starting line XO is 30° to 70°.

[0219] Through research and development and repeated layout adjustments, the inventors arranged the speaker units in the system of Example 22 or Example 23 in the above-mentioned azimuth range, and ultimately enabled the headphone playback sound effect to reach a professional-grade home theater sound system, greatly improving the user experience.

[0220] Therefore, the corresponding relationship with the speaker placement of the surround sound system is as follows: the center front speaker 440 on the left side of the system and the center front speaker on the right side correspond to the left front speaker and the right front speaker in the surround sound system respectively, and the top front speaker unit 540 corresponds to the center speaker in the surround sound system;

[0221] The center front speaker 440 and the center front speaker on the right side of the headset are responsible for managing most of the scene sounds in the movie, and the corresponding restoration of large-scale sound effects, including the background music in the movie. Especially the magnificent scenes are matched with large-scale music, which is exciting and the deep bass effect will feel very shocking.

[0222] The main function of the top front speaker unit 540 is to play back the vocal dialogues and mid-frequency and high-frequency sound segments in the movie. It will concentrate the vocal dialogues in the theater in the middle of the entire screen sound field, which plays a key role in the effect and smoothness of the vocals.

[0223] The center speakers 430 on the left and right sides correspond to the surround speakers on the left and right sides of the home theater system respectively, and the center rear speakers 450 on the left and right sides correspond to the two back surround speakers on the back wall of the audio-visual room. Combined with the top front speaker unit 540 and the center front speaker 440, these seven speaker units can accurately position the sound in the picture in the audio system. The position where the sound appears is the sound part that the corresponding surround speakers should restore and amplify, which can play a connecting role. It allows a good connection between the front sound field and allows users to hear an ambient sound effect at the back, allowing users to integrate into the surround of the sound field, creating a sense of presence and atmosphere, and also can play a role in rendering the shocking presence of the sound field surround, and can also enhance the texture of the film sound effect, and can show natural connection and smoothness when the sound and image move.

[0224] The woofer unit, that is, the lower bass speaker 460 or the external speaker 8 corresponds to the subwoofer in the home theater surround sound system. The lower bass speaker 460 or the external speaker 8 is the soul of this near-field surround sound system. All the magnificent scene sounds in the movie are set off by the lower bass speaker 460 or the external speaker 8. In the movie soundtrack, the subwoofer capacity is concentrated around 60 Hz, and many movies are as low as 40 Hz. The sound pressure level on the scene can reach more than 100 DB, which can make the explosions and earth-shaking sounds in the movie more real and shocking.

[0225] The four speaker units, namely the left front upper speaker 410, the left rear upper speaker 420, the right front upper speaker and the right rear upper speaker, correspond to the four sky channel speakers on the ceiling of the audio-visual room of the panoramic sound system, realizing the sound effects of the Dolby Atmos home theater system. When users listen to audio using this system, they can feel that the headphones restore the airplanes hovering in the sky, thunder and rain and any other sounds in the sky, as if they were personally on the scene.

[0226] Through the above scheme, the various speakers of the home theater audio system can be brought closer to the user's head. Since the sound pressure level is inversely proportional to the square of the distance, the near-field speakers in this system do not need too high a sound pressure output, so the volume of the speaker can be reduced, the volume of the near-ear speaker module 4 is controlled, and the playback effect of the existing home theater system can be achieved by customizing and debugging the near-field speaker unit. Compared with headphones, this near-field speaker system fully utilizes the auricle's ability to identify the direction of sound by reserving the distance between the system and the human ear, making the surround sound system closer to a real natural listening state, thereby enhancing the sense of presence of the surround system.

[0227] Therefore, this system can actually achieve high-quality sound effects equivalent to surround sound or panoramic sound systems.

[0228] In summary, this near-field surround sound system, through debugging and verification, improves the traditional headphone bracket, solving the problem of the uncomfortable feeling of stuffiness and sweating caused by the earphone user's ears being enclosed by the earphones; by using a clamping sub-frame 2 to clamp the two sides of the user's head, that is, near the ear roots of the two ears, the problem of the stability of the connection between the improved bracket body 1 and the user's head is solved. By providing multiple speaker units in the near-ear speaker module 4, and supplementing the top area of ​​the bracket body 1 and the area of ​​the clamping sub-frame 2 with specific speaker units or speaker unit groups, each speaker unit receives a specific channel signal, realizing the headset as a near-field surround sound system or achieving panoramic sound effects, greatly enhancing the user experience and comparable to a standard professional home theater audio system. Moreover, compared with a home theater audio system, this near-field surround sound system is easy to carry, saves space, and is convenient to use. It avoids the sound interference caused by the home theater audio system to the surrounding environment, such as the living environment of neighbors, when it is working.

[0229] Please refer to Figure 16, Example 24

[0230] The multiple speaker units in the near-ear speaker module are two full-range speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the two full-range speaker units in the near-ear speaker module are arranged front to back. The front full-range speaker unit is used to receive the center channel signal or the left and right channel signals, and the rear full-range speaker unit is used to receive the rear left and right surround channel signals.

[0231] Please refer to Figure 17, Example 25

[0232] The multiple speaker units in the near-ear speaker module 4 are three full-range speaker units. According to the correspondence between the near-ear speaker module 4 and the left and right ears, the three full-range speaker units in the near-ear speaker module 4 are arranged in the front, middle and back.

[0233] The full-range speaker unit on the front side is used to receive any one of the front channel signals, the left and right channel signals, and the left and right front surround channel signals;

[0234] The full-range speaker unit in the middle is used to receive left and right front surround channel signals and either left or right channel signals;

[0235] The full-range speaker unit at the rear side is used to receive rear left and right surround channel signals.

[0236] Please refer to Figure 18, Example 26

[0237] The multiple speaker units in the near-ear speaker module 4 are three speaker units. According to the correspondence between the near-ear speaker module 4 and the left and right ears, the three speaker units in the near-ear speaker module 4 are arranged in two layers, and the number of the speaker units in the upper layer is two front-to-back.

[0238] The speaker unit on the front side of the upper layer is used to receive any one of the front channel signal, the left and right channel signal, the left and right front surround channel signal, and the center channel signal;

[0239] The speaker unit on the rear side of the upper layer is used to receive left and right rear surround sound channels;

[0240] The speaker unit in the lower layer is used to receive rear left and right bass channel signals.

[0241] In this embodiment, the speaker unit in the lower layer may be a full-range speaker unit or a low-frequency speaker unit, and the other speaker units are preferably full-range speaker units.

[0242] Please refer to Figure 19, Example 27

[0243] The multiple speaker units in the near-ear speaker module 4 are four speaker units. According to the correspondence between the near-ear speaker module 4 and the left and right ears, the four speaker units in the near-ear speaker module 4 are arranged in two layers, and the number of the speaker units in the upper layer is three, arranged in a front, middle and rear manner;

[0244] The speaker unit on the front side of the upper layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0245] The speaker unit in the middle of the upper layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0246] The speaker unit on the rear side of the upper layer is used to receive left and right rear surround sound channels;

[0247] The speaker unit in the lower layer is used to receive rear left and right bass channel signals.

[0248] In this embodiment, the speaker unit in the lower layer may be a full-range speaker unit or a low-frequency speaker unit, and the other speaker units are preferably full-range speaker units.

[0249] Please refer to Figure 20, Example 28

[0250] The multiple speaker units in the near-ear speaker module 4 are four full-range speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four full-range speaker units in the near-ear speaker module are arranged in three layers, and the number of full-range speaker units in the middle layer is two in a front-to-back arrangement;

[0251] The full-range speaker unit in the upper layer is used to receive left and right upper surround channel signals;

[0252] The full-range speaker unit on the front side of the middle layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0253] The full-range speaker unit at the rear side of the middle layer is used to receive left and right rear surround channel signals;

[0254] The full-range speaker unit in the lower layer is used to receive the center channel signal, the left and right channel signals, and any one of the left and right front surround channel signals.

[0255] Please refer to Figure 21, Example 29

[0256] The multiple speaker units in the near-ear speaker module 4 are four full-range speaker units. According to the correspondence between the near-ear speaker module 4 and the left and right ears, the four full-range speaker units in the near-ear speaker module 4 are arranged in two layers, and the number of full-range speaker units in the upper and lower layers is two in a front-to-back arrangement;

[0257] The full-range speaker unit on the front side of the upper layer is used to receive left and right upper front surround channel signals;

[0258] The full-range speaker unit at the rear side of the upper layer is used to receive left and right upper rear surround channel signals;

[0259] The full-range speaker unit on the front side of the lower layer is used to receive the center channel signal and either the left or right channel signal;

[0260] The full-range speaker unit at the rear side of the lower layer is used to receive left and right surround channel signals.

[0261] Please refer to Figure 22, Example 30

[0262] The plurality of speaker units in the near-ear speaker module 4 is five speaker units. According to the correspondence between the near-ear speaker module 4 and the left and right ears, the four speaker units in the near-ear speaker module 4 are arranged in two layers, and the number of the speaker units in the upper and lower layers is two in a front-to-back arrangement. The fifth speaker unit is arranged between the four speaker units.

[0263] The speaker unit on the front side of the upper layer is used to receive left and right upper front surround channel signals;

[0264] The speaker unit on the rear side of the upper layer is used to receive left and right upper rear surround channel signals;

[0265] The speaker unit on the front side of the lower layer is used to receive the center channel signal and either the left or right channel signal;

[0266] The speaker unit at the rear side of the lower layer is used to receive left and right surround channel signals;

[0267] The fifth speaker unit is used to receive left and right bass channel signals.

[0268] In this embodiment, the fifth speaker unit may be a full-range speaker unit or a low-frequency speaker unit, and the other speaker units are preferably full-range speaker units.

[0269] Please refer to Figure 23, Example 31

[0270] The multiple speaker units in the near-ear speaker module 4 are five speaker units. According to the correspondence between the near-ear speaker module 4 and the left and right ears, the five speaker units in the near-ear speaker module 4 are arranged in three layers, and the number of the speaker units in the middle layer is three, arranged in a front-middle-rear arrangement;

[0271] The upper speaker unit is used to receive left and right upper front surround channel signals;

[0272] The speaker unit on the front side of the middle layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0273] The speaker unit in the middle of the middle layer is used to receive the center channel signal and any one of the left and right channel signals and the left and right front surround channel signals;

[0274] The speaker unit at the rear side of the middle layer is used to receive left and right rear surround channel signals;

[0275] The speaker unit at the lower layer is used to receive bass channel signals.

[0276] In this embodiment, the speaker unit in the lower layer may be a full-range speaker unit or a low-frequency speaker unit, and the other speaker units are preferably full-range speaker units.

[0277] In some embodiments, the near-ear speaker module 4 is adjustably connected to the bracket body 1 through the connecting portion 110. When the bracket body 1 is worn by the user, the near-ear speaker module 4 can be adjusted to a distance of 0 mm to 80 mm from the user's ear auricle through the connecting portion 110.

[0278] The connection portion 110 can be a metal shaped hose structure that can be bent by the user to the desired position and then automatically fixed. Alternatively, the connection portion 110 and the bracket body 1 are pivotally connected, and the pivoting connection has friction damping. When the external force is removed, the adjusted position is maintained. This allows the near-ear speaker module 4 to be adjusted to a distance from the user's auricle from 0mm to 80mm to meet the user's needs.

Claims

1. A near-field surround sound system, characterized in that, Comprising: A bracket main body, with connecting parts provided at both ends of the bracket main body; A clamping sub-bracket, which is arranged adjacent to the upper end of the connecting part; the clamping sub-bracket is connected to the two side surfaces of the bracket main body, and the arc of the clamping sub-bracket corresponds to the arc on both sides of the head; A flexible pad, which is arranged on the end surfaces of the bracket main body, the clamping sub-bracket and the head in contact; Near-ear speaker modules, the number of which is two, and are respectively connected to the two connecting parts; each group of the near-ear speaker modules includes a plurality of speaker units; when the user wears the bracket main body, the connecting part is used to make the near-ear speaker module not contact the user's ears.

2. The near-field surround sound system according to claim 1, characterized in that Comprising a top speaker module, which is connected to the bracket main body, is generally arranged at the top end of the bracket main body, and the sound-emitting surface faces the head.

3. The near-field surround sound system according to claim 1, wherein Comprising a middle-section speaker module, at least one of which is arranged in the clamping sub-bracket, adjacent to the clamping sub-bracket, at any position of the connecting part; the middle-section speaker module is used to receive any one of the left and right surround channel signals, the upper left and upper right surround channel signals, the bass channel signal, and the center channel signal.

4. The near-field surround sound system according to claim 1, wherein When the bracket main body is worn by the user, through the connecting part, the distance between the near-ear speaker module and the user's ear auricle is 5 mm to 80 mm.

5. The near-field surround sound system according to claim 1, wherein The plurality of speaker units in the near-ear speaker module include five full-frequency speaker units and one bass speaker unit, and are arranged in three layers; the number of full-frequency speaker units in the middle layer is three, and the sound-emitting ends of the two full-frequency speaker units and the bass speaker unit are respectively arranged above and below the full-frequency speaker units in the middle layer; Wherein, according to the correspondence between the near-ear speaker module and the left and right ears, the front-back layout relationship of the plurality of speaker units in the near-ear speaker module is: One of the full-frequency speaker units in the upper layer is used to receive the front upper surround channel signal, and the other full-frequency speaker unit in the upper layer is used to receive the rear upper surround channel signal; The full-frequency speaker unit at the rear of the full-frequency speaker units in the middle layer is used to receive the rear surround channel signal; for the other two full-frequency speaker units, when the full-frequency speaker unit in the middle is used to receive the front surround channel signal, the front full-frequency speaker unit is used to receive the left and right channel signals, or, when the full-frequency speaker unit in the middle is used to receive the left and right channel signals, the front full-frequency speaker unit is used to receive the front surround channel signal; The bass speaker unit is used to receive the bass channel signal.

6. The near-field surround sound system according to claim 1, wherein, Comprising an external speaker; the plurality of speaker units in the near-ear speaker module include five full-frequency speaker units arranged in upper and lower layers; the number of full-frequency speaker units in the lower layer is three, and the number of full-frequency speaker units in the upper layer is two; Wherein, according to the correspondence between the near-ear speaker module and the left and right ears, the front-back layout relationship of the plurality of speaker units in the near-ear speaker module is: One of the full-frequency speaker units at the front side of the upper layer is used to receive the front upper surround channel signal, and the full-frequency speaker unit at the rear side of the upper layer is used to receive the rear upper surround channel signal; The full-frequency speaker unit at the rear of the lower-layer full-frequency speaker unit is used to receive the rear surround channel signal; for the other two full-frequency speaker units, when the middle full-frequency speaker unit is used to receive the front surround channel signal, the front full-frequency speaker unit is used to receive the left and right channel signals, or when the middle full-frequency speaker unit is used to receive the left and right channel signals, the front full-frequency speaker unit is used to receive the front surround channel signal; The external speaker is used to receive the bass channel signal.

7. The near-field surround sound system according to claim 2, wherein The top speaker module is arranged on the front side of the bracket main body; the top speaker module is a bass speaker unit or a full-frequency speaker unit and is used to receive the bass channel signal.

8. The near-field surround sound system according to claim 2, wherein The number of the top speaker modules is at least one, which is arranged on the front side and / or the rear side of the bracket main body and is used to receive the surround channel signal.

9. The near-field surround sound system according to claim 2, characterized in that, The top speaker module includes two speaker units, which are respectively arranged on the front side of the bracket main body, and on the lower end surface of the top of the bracket main body or at a position adjacent to the lower end surface of the top of the bracket main body on the front side of the bracket main body; the speaker unit arranged on the front side of the bracket main body is used to receive the center channel signal; the speaker unit arranged on the lower end surface of the top of the bracket main body or at a position adjacent to the lower end surface of the top of the bracket main body on the front side of the bracket main body is used to receive the upper surround channel signal.

10. The near-field surround sound system according to claim 2, wherein The top speaker module includes three speaker units, which are respectively arranged on the front side and the rear side of the bracket main body and are used to receive the front and rear upper surround channel signals, and is arranged on the lower end surface of the top of the bracket main body and is used to receive the bass channel signal.

11. The near-field surround sound system according to claim 2, wherein It includes a support plate, the support plate is at least connected to the front side of the top of the bracket main body, and the radian of the support plate is shaped to fit the radian of the top of the head; the top speaker module is connected to the bracket main body through the support plate.

12. The near-field surround sound system according to claim 5, wherein It includes a front top speaker unit arranged on the front side of the top of the bracket main body and is used to receive the center channel signal; a mobile supplementary speaker unit arranged on the rear side of the bracket main body and is used to receive the mobile supplementary channel signal; the middle speaker module with the number of at least one, which is arranged at any position in the clamping sub-bracket, adjacent to the clamping sub-bracket, or in the connecting part and is used to receive the mobile supplementary channel signal; the multiple speaker units in the near-ear speaker module include five full-frequency speaker units and one bass speaker unit and are arranged in three layers; the number of the full-frequency speaker units in the middle layer is three, and two of the full-frequency speaker units and the bass speaker unit are respectively arranged above and below the middle layer; Among them, according to the corresponding relationship between the near-ear speaker module and the left and right ears, the front and rear layout relationship of the multiple speaker units in the near-ear speaker module is: One of the full-frequency speaker units in the upper layer is used to receive the front upper surround channel signal, and the other full-frequency speaker unit in the upper layer is used to receive the rear upper surround channel signal; The full-range speaker unit at the rear of the middle layer is used to receive the rear surround channel signal; for the other two full-range speaker units, when the full-range speaker unit in the middle is used to receive the front surround channel signal, the front full-range speaker unit is used to receive the left and right channel signals, or when the full-range speaker unit in the middle is used to receive the left and right channel signals, the front full-range speaker unit is used to receive the front surround channel signal; The subwoofer unit is used to receive the subwoofer channel signal.

13. The near-field surround sound system according to claim 12, characterized in that, Taking the left ear canal entrance as the center origin, introduce the X, Y-axis plane rectangular coordinate system, and use the negative Y-axis as the starting line; project and wear the near-field surround sound system from the top view perspective, and the layout of each speaker unit at the top and left side of the near-field surround sound system is as follows: The included angle formed by the connection line between the position point of the full-range speaker unit at the front of the middle layer and the center origin and the starting line is 15° to 45°; The included angle formed by the connection line between the position point of the full-range speaker unit in the middle of the middle layer and the center origin and the starting line is 70° to 110°; The included angle formed by the connection line between the position point of the full-range speaker unit at the rear of the middle layer and the center origin and the starting line is 120° to 165°; The included angle formed by the connection line between the position point of the full-range speaker unit that receives the front upper surround channel signal in the upper layer and the center origin and the starting line is 65° to 80°; The included angle formed by the connection line between the position point of the full-range speaker unit that receives the rear upper surround channel signal in the upper layer and the center origin and the starting line is 110° to 125°; The included angle formed by the connection line between the position point of the top front speaker unit and the center origin and the starting line is -20° to -60°; The included angle formed by the connection line between the position point of the mobile supplementary speaker unit and the center origin and the starting line is -110° to -150°; Taking the left ear canal entrance as the center origin, introduce the X, Y, Z-axis space rectangular coordinate system, and use the positive X-axis as the starting line; project and wear the near-field surround sound system from the right view perspective, and the included angle formed by the connection line between the position point of the full-range speaker unit on the upper left side of the near-field surround sound system and the center origin and the starting line is 30° to 70°.

14. The near-field surround sound system according to claim 1, characterized in that, The multiple speaker units in the near-ear speaker module are two full-range speaker units. According to the corresponding relationship between the near-ear speaker module and the left and right ears, the two full-range speaker units in the near-ear speaker module are arranged front and back. The front full-range speaker unit is used to receive the center channel signal or the left and right channel signals, and the rear full-range speaker unit is used to receive the rear left and right surround channel signals.

15. The near-field surround sound system according to claim 1, characterized in that, The multiple speaker units in the near-ear speaker module are three full-range speaker units. According to the corresponding relationship between the near-ear speaker module and the left and right ears, the three full-range speaker units in the near-ear speaker module are arranged in the front, middle, and back. The front full-range speaker unit is used to receive any one of the front channel signal, the left and right channel signals, and the left and right front surround channel signals; The middle full-range speaker unit is used to receive any one of the left and right front surround channel signals and the left and right channel signals; The rear full-range speaker unit is used to receive the rear left and right surround channel signals.

16. The near-field surround sound system according to claim 1, characterized in that, The multiple speaker units in the near-ear speaker module are three speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the three speaker units in the near-ear speaker module are arranged in two layers, and the number of speaker units in the upper layer is two, arranged front and back; The front-side speaker unit in the upper layer is used to receive any one of the front-channel signal, the left and right channel signals, the left and right front surround channel signals, and the center channel signal; The rear-side speaker unit in the upper layer is used to receive the left and right rear surround channels; The speaker unit in the lower layer is used to receive the left and right rear bass channel signals.

17. The near-field surround sound system according to claim 1, characterized in that, The multiple speaker units in the near-ear speaker module are four speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four speaker units in the near-ear speaker module are arranged in two layers, and the number of speaker units in the upper layer is three, arranged front, middle, and back; The front-side speaker unit in the upper layer is used to receive any one of the center channel signal, the left and right channel signals, and the left and right front surround channel signals; The middle speaker unit in the upper layer is used to receive any one of the center channel signal, the left and right channel signals, and the left and right front surround channel signals; The rear-side speaker unit in the upper layer is used to receive the left and right rear surround channels; The speaker unit in the lower layer is used to receive the left and right rear bass channel signals.

18. The near-field surround sound system according to claim 1, wherein The multiple speaker units in the near-ear speaker module are four full-frequency speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four full-frequency speaker units in the near-ear speaker module are arranged in three layers, and the number of full-frequency speaker units in the middle layer is two, arranged front and back; The full-frequency speaker unit in the upper layer is used to receive the left and right upper surround channel signals; The front-side full-frequency speaker unit in the middle layer is used to receive any one of the center channel signal, the left and right channel signals, and the left and right front surround channel signals; The rear-side full-frequency speaker unit in the middle layer is used to receive the left and right rear surround channel signals; The full-frequency speaker unit in the lower layer is used to receive any one of the center channel signal, the left and right channel signals, and the left and right front surround channel signals.

19. The near-field surround sound system according to claim 1, wherein The multiple speaker units in the near-ear speaker module are four full-frequency speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the four full-frequency speaker units in the near-ear speaker module are arranged in two layers, and the number of full-frequency speaker units in both the upper and lower layers is two, arranged front and back; The front-side full-frequency speaker unit in the upper layer is used to receive the left and right upper front surround channel signals; The rear-side full-frequency speaker unit in the upper layer is used to receive the left and right upper rear surround channel signals; The front-side full-frequency speaker unit in the lower layer is used to receive any one of the center channel signal and the left and right channel signals; The rear-side full-frequency speaker unit in the lower layer is used to receive the left and right surround channel signals.

20. The near-field surround sound system according to claim 1, characterized in that, The multiple speaker units in the near-ear speaker module are five speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, four of the speaker units in the near-ear speaker module are arranged in two layers, with two speaker units in the upper and lower layers arranged front and back, and the fifth speaker unit is arranged between the four speaker units; The front-side speaker unit in the upper layer is used to receive left and right upper-front surround channel signals; The rear-side speaker unit in the upper layer is used to receive left and right upper-rear surround channel signals; The front-side speaker unit in the lower layer is used to receive either the center channel signal or one of the left and right channel signals; The rear-side speaker unit in the lower layer is used to receive left and right surround channel signals; The fifth speaker unit is used to receive left and right bass channel signals.

21. The near-field surround sound system according to claim 1, wherein The multiple speaker units in the near-ear speaker module are five speaker units. According to the correspondence between the near-ear speaker module and the left and right ears, the five speaker units in the near-ear speaker module are arranged in three layers, with three speaker units in the middle layer arranged front, middle, and back; The speaker unit in the upper layer is used to receive left and right upper-front surround channel signals; The front-side speaker unit in the middle layer is used to receive either the center channel signal, the left and right channel signals, or the left and right front surround channel signals; The middle speaker unit in the middle layer is used to receive either the center channel signal, the left and right channel signals, or the left and right front surround channel signals; The rear-side speaker unit in the middle layer is used to receive left and right rear surround channel signals; The speaker unit in the lower layer is used to receive bass channel signals.

22. The near-field surround sound system according to claim 1, wherein, The near-ear speaker module is adjustably connected to the bracket body through the connecting part. When the bracket body is worn by the user, through the connecting part, the distance between the near-ear speaker module and the user's ear auricle can be adjusted to be 0 mm to 80 mm.

Images