Near field surround sound system

Abstract

The utility model discloses a near-field surround sound system, comprising a support main body, two ends of which are provided with connecting parts; the clamping sub-frame is arranged adjacent to the upper end of the connecting part; the auxiliary clamping frame is connected with the two side faces of the support body, and the radian of the auxiliary clamping frame corresponds to the radian of the two sides of the head; the flexible pad is arranged on the end faces, attached to the head, of the support body and the auxiliary clamping frame; the number of the near-ear loudspeaker modules is two, and the near-ear loudspeaker modules are respectively connected with the two connecting parts; each group of near-ear loudspeaker module comprises a plurality of loudspeaker units; when a user wears the support body, the connecting part is used for enabling the near-ear loudspeaker module not to make contact with the ears of the user. Comprising a top loudspeaker module, the top loudspeaker module is connected with the support main body and is roughly arranged at the top end of the support main body, and the sound output end faces the head. And at least one of the two near-ear loudspeaker modules is provided with a microphone.

Description

Technical Field

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

[0002] Headphones are generally divided into two categories, one is in-ear type and the other is head-mounted type; head-mounted headphones generally include a headphone stand and earmuffs, and the headphone speakers are set in the earmuffs; compared to in-ear headphones, head-mounted headphones can use larger speakers with better sound quality performance, and therefore 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. Users are prone to feel uncomfortable due to heat and sweating after wearing them, which affects the user experience. In addition, they are prone to breeding bacteria and hygiene problems that affect the user's ear health. Utility Model Content

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

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

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

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

[0008] A flexible pad, the flexible pad being arranged on the end surfaces of the bracket body, the clamping sub-frame and the head against which the bracket body and the head are in contact;

[0009] A near-ear speaker module, wherein the number of the near-ear speaker modules is two and the modules 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 body, the connecting part is used to prevent the near-ear speaker module from contacting the user's ear.

[0010] Furthermore, it includes a top speaker module, which is connected to the bracket body and is roughly arranged at the top of the bracket body, with the sound output end 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 left and right surround channel signals, upper left and right surround channel signals, bass channel signals, and center channel signals.

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

[0013] Furthermore, when the support body is worn by a 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 full-range speaker unit in the middle layer is used to receive rear surround channel signals; the other two full-range speaker units, when the full-range speaker unit in the middle is used to receive front surround channel signals, the full-range speaker unit in the front is used to receive left and right channel signals, or, when the full-range speaker unit in the middle is used to receive left and right channel signals, the full-range speaker unit in the front is used to receive front surround channel signals;

[0018] The woofer speaker unit is used for receiving a bass channel signal.

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

[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 full-range speaker unit in the middle is used to receive front surround channel signals, the full-range speaker unit in the front is used to receive left and right channel signals, or, when the full-range speaker unit in the middle is used to receive left and right channel signals, the full-range speaker unit in the front 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 a bass channel signal.

[0025] Furthermore, there is at least one top speaker module, which is disposed 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 end of the bracket body or on the front side of the bracket body adjacent to the lower end surface of the top end 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 end of the bracket body or on the front side of the bracket body adjacent to the lower end surface of the top end 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] Further, it includes a top front speaker unit arranged on the top front side of the bracket body, for receiving the center channel signal; a motorized supplementary speaker unit arranged on the rear side of the bracket body, for receiving the motorized supplementary channel signal; at least one middle section speaker module arranged in the clamping sub-frame, adjacent to the clamping sub-frame, and at any position in the connecting part, 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 arranged at the upper and lower parts of the middle layer respectively;

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

[0033] The woofer speaker unit is used for receiving a bass channel signal.

[0034] Furthermore, taking the entrance of the left ear canal as the center origin, introducing the X-axis and Y-axis plane rectangular coordinate system, taking the axis in the negative direction of the Y-axis as the starting line; 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:

[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 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 central origin and the starting line is -110° to -150°;

[0042] Taking the entrance of the left ear canal as the center origin, introducing the X, Y, Z axis space rectangular coordinate system, taking the axis in the positive direction of the X axis as the starting line; the near-field surround sound system is projected from the right perspective, and the angle formed by the line connecting the position point of the full-range speaker unit on the upper left layer 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 front, middle and rear.

[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] Further, the plurality of 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 the speaker units in the upper layer is two front-to-back arrangements.

[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 at the rear side of the upper layer is used to receive left and right rear surround sound channels;

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

[0052] Further, the plurality of 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 front, middle and rear;

[0053] The speaker unit on the front side of 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;

[0054] The speaker unit in the middle of 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;

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

[0056] The speaker unit at 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 arranged front and back;

[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 at 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 a center channel signal, a left channel signal, a right channel signal, and a left front surround channel signal or a right front surround channel signal.

[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, arranged front and back;

[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 at 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] Further, the plurality of 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 four speaker units in the near-ear speaker module are arranged in two layers, and the number of the speaker units in the upper and lower layers are both two, arranged front and back, 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 at the rear side of the upper layer is used to receive left and right upper rear surround channel signals;

[0070] The speaker unit at 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 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, and the number of the speaker units in the middle layer is three, arranged in the front, middle and rear;

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

[0075] The speaker unit at 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 for receiving 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 0 mm to 80 mm from the user's ear auricle through the connecting portion.

[0080] Compared with the prior art, the near-field surround sound system provided by the utility model can solve the problem of the stuffiness and sweating discomfort caused by the traditional headphones enclosing the user's ears, and by arranging 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 can be more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 This is a front view of the near-field surround sound system of the present application.

[0082] Figure 2 This is a right side view of the near-field surround sound system of this application.

[0083] Figure 3 This is a schematic diagram of the tenth embodiment of the near-field surround sound system of the present application.

[0084] Figure 4 This is a schematic diagram of the structures of Embodiment 6, Embodiment 7, Embodiment 8 and Embodiment 9 of the near-field surround sound system of the present application.

[0085] Figure 5 This is a schematic diagram of the eleventh embodiment of the near-field surround sound system of the present application.

[0086] Figure 6 Schematic diagrams of the structures of embodiments 12 to 17 of the near-field surround sound system of the present application.

[0087] Figure 7 It is a schematic diagram of the structure of the eighteenth embodiment of the near-field surround sound system of the present application.

[0088] Figure 8 It is a structural diagram of the nineteenth embodiment of the near-field surround sound system of the present application.

[0089] Fig. 9 This is a schematic structural diagram of Embodiment 21 of the near-field surround sound system of the present application.

[0090] Fig.10 This is a structural schematic diagram of Embodiment 22 or Embodiment 23 of the near-field surround sound system of the present application.

[0091] Fig.11 This is a schematic diagram of the distribution of speaker units of Embodiment 22 or Embodiment 23 of the near-field surround sound system of the present application.

[0092] Fig.12 This is a schematic diagram of the distribution of speaker units of Embodiment 22 or Embodiment 23 of the near-field surround sound system of the present application.

[0093] Fig.13 This is a schematic diagram of the distribution of speaker units of Embodiment 22 or Embodiment 23 of the near-field surround sound system of the present application.

[0094] Fig.14 This is a structural schematic diagram of a near-field surround sound system of the present application when the side projection profile of the connection portion is a curved arc structure.

[0095] Fig.15 This is a structural schematic diagram of another embodiment of the near-field surround sound system of the present application when the side projection profile of the connection portion is a curved arc structure.

[0096] Fig.16 This is a schematic diagram of the distribution of speaker units of Embodiment 24 of the near-field surround sound system of the present application.

[0097] Fig.17 This is a schematic diagram of the distribution of speaker units of Embodiment 25 of the near-field surround sound system of the present application.

[0098] Fig.18 This is a schematic diagram of the distribution of speaker units of Embodiment 26 of the near-field surround sound system of the present application.

[0099] Fig.19 This is a schematic diagram of the distribution of speaker units of Embodiment 27 of the near-field surround sound system of the present application.

[0100] Fig. 20 This is a schematic diagram of the distribution of speaker units of Embodiment 28 of the near-field surround sound system of the present application.

[0101] Fig.21 This is a schematic diagram of the distribution of speaker units of Embodiment 29 of the near-field surround sound system of the present application.

[0102] Fig. 22 This is a schematic diagram of the distribution of speaker units of Embodiment 30 of the near-field surround sound system of the present application.

[0103] Fig.23 This is a schematic diagram of the distribution of speaker units of 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-section speaker module; 710. receiving microphone; 720. signal collection microphone; 8. external speaker; 9. support plate; 910. support front plate; 920. support rear plate; 10. motorized supplementary speaker unit. DETAILED DESCRIPTION

[0105] Please refer to Figure 1 - Fig.15 , this embodiment provides a near-field surround sound system, including:

[0106] A bracket body 1, wherein two ends of the bracket body 1 are provided with connecting parts 110;

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

[0108] A flexible pad 3, the flexible pad 3 is arranged on the end surface of the bracket body 1, the clamping sub-frame 2 and the head against which the head is pressed;

[0109] A near-ear speaker module 4, wherein the number of the near-ear speaker modules 4 is two, which are respectively connected to the two connecting parts 110; each group of the near-ear speaker modules 4 includes a plurality of 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 between the connecting portion 110 and the bracket body 1 is located at the upper end of the user's ear. The connecting portion 110 can be a frame or plate structure integrated with the bracket body 1, starting from the connection with the bracket body 1, extending obliquely in the direction 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; because traditional head-mounted headphones mainly rely on headphone earmuffs to enclose and clamp the user's ears and head to play a role in stable wearing, and this embodiment adopts the original headphone earmuffs 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 ear root area adjacent to 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 the stuffiness and sweating discomfort caused by the traditional headphones covering the user's ears, but also, by setting multiple speaker units in the near-ear speaker module 4, compared with the sound unit of a single speaker, multiple speaker units can constitute a near-field surround sound system, which has a better sound quality experience.

[0112] In some embodiments, the clamping sub-frame 2 can be a structure integrated with the bracket 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 sides of the bracket body 1 is the front clamping plate 210, and the clamping sub-frame 2 extending backward from the two sides of the bracket body 1 is the rear clamping plate 220; when viewed from the side view of the present headset, the connection projection outline of the clamping sub-frame 2 and the bracket body 1 is in the shape of a "cross", but the projection outlines of the front clamping plate 210 and the rear clamping plate 220 are not limited to the straight arm shape, please refer to Fig.14 and Fig.15 , the clamping sub-frame 2 is an arc-bent projection profile, and has an end facing upward in the horizontal height direction and an end facing downward in the horizontal height direction.

[0113] The curvature of the clamping sub-frame 2 is designed to correspond to the curvatures on both sides of the head, so that the clamping sub-frame 2 can be more closely attached to the user's head and the connection is more stable. In some embodiments, the clamping sub-frame 2 is adjustably connected 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, so that the clamping sub-frame 2 rotates in the direction of attaching to 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 Figure 2 , Figure 6 - Fig.11 , including a top speaker module 5, which is connected to the bracket body 1, is roughly arranged at the top of the bracket body 1, and the sound output end faces the head.

[0116] Embodiment 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 Figure 3 and Figure 4 , Fig.10 , including a middle speaker module 6, at least one of the middle 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 middle speaker module 6 is used to receive any one of left and right surround channel signals, upper left and upper right 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] Embodiment 2

[0120] Please refer to Figure 3 , the number of speaker units in the middle speaker module 6 is two. Taking the left half of the headset as an example, a speaker unit is set in each of 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 left front and left rear surround channel signals respectively, and the speaker unit in the right half of the clamping sub-frame 2 receives the right front and right rear surround channel signals accordingly. The near-field surround sound system can be formed by combining the debugging of electronic hardware and software.

[0121] Embodiment 3

[0122] Please refer to Figure 3 , the number of speaker units in the middle speaker module 6 is two. Taking the left half of the headset as an example, a speaker unit is set in each of 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 left front upper and left rear upper surround channel signals respectively, and the speaker unit in the right half of the clamping sub-frame 2 receives the right front upper and right rear upper surround channel signals accordingly. The near-field surround sound system can be formed by combining the debugging of electronic hardware and software.

[0123] Embodiment 4

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

[0125] Embodiment 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 headset as an example, a speaker unit is respectively arranged in the front clamping plate 210 and the rear clamping plate 220 of the left clamping sub-frame 2. The two speaker units receive the front and rear center channel signals respectively. The speaker unit in the right clamping sub-frame 2 also receives the front and rear center channel signals respectively.

[0127] Embodiment 6

[0128] Please refer to Figure 4 The number of speaker units in the middle speaker module 6 is one. Taking the left half of the headset as an example, the speaker unit is arranged adjacent to the clamping sub-frame 2. In one embodiment, the speaker unit is arranged between the front clamping plate 210 and the rear clamping plate 220, that is, in the bracket body 1, and is located above the horizontal height of the clamping sub-frame 2. The speaker unit receives the left surround channel signal, and the speaker unit at the symmetrical position on the right half receives the right surround channel signal accordingly.

[0129] Embodiment 7

[0130] Please refer to Figure 4 The number of speaker units in the middle speaker module 6 is one. Taking the left half of the headset as an example, the speaker unit is arranged adjacent to the clamping sub-frame 2. In one embodiment, the speaker unit is arranged between the front clamping plate 210 and the rear clamping plate 220, that is, in the bracket body 1, and is located above the horizontal height of the clamping sub-frame 2. The speaker unit receives the upper left surround channel signal, and the speaker unit at the symmetrical position on the right half receives the upper right surround channel signal accordingly.

[0131] Embodiment 8

[0132] Please refer to Figure 4 The number of speaker units in the middle speaker module 6 is one. Taking the left half of the headset as an example, the speaker unit is arranged adjacent to the clamping sub-frame 2. In one embodiment, the speaker unit is arranged between the front clamping plate 210 and the rear clamping plate 220, that is, in the bracket body 1, and is located above the horizontal height of the clamping sub-frame 2. The speaker unit at the symmetrical position on the right half also receives the bass channel signal.

[0133] Embodiment 9

[0134] Please refer to Figure 4 The number of speaker units in the middle speaker module 6 is one. Taking the left half of the headset as an example, the speaker unit is arranged adjacent to the clamping sub-frame 2. In one embodiment, the speaker unit is arranged between the front clamping plate 210 and the rear clamping plate 220, that is, in the bracket body 1, and is located above the horizontal height of the clamping sub-frame 2. The speaker unit at the symmetrical position on the right half also receives the center channel signal.

[0135] Please refer to Fig.10 In a preferred embodiment, taking the left half of the system as an example, the middle speaker module 6 is arranged in the connection part 110 of the left half. Compared with the second to ninth embodiments, the sound output end of the middle speaker module 6 may contact the user's head and be blocked to affect the sound output. The arrangement of this embodiment is more reasonable. The middle speaker module 6 arranged in the connection part 110 is used to receive any one of the left and right surround channel signals, the upper left and upper right surround channel signals, the left front and right front surround channel signals, the left rear and right rear surround channel signals, the bass channel signal, and the center channel signal. The speaker units at the symmetrical positions on the right half also receive the corresponding channel signals accordingly.

[0136] Please refer to Figure 1 - Figure 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, collects the sound output by the multiple speaker units, and then sends it to the relevant analysis and processing module for analysis to adjust the best 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 technologies and is not the focus of innovation of this application, so it will not be elaborated here.

[0139] Preferably, when the bracket body is worn by a 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 the user's discomfort caused by the heat and sweating caused by the earphone user's ears being enclosed.

[0141] Please refer to Figure 3 The multiple speaker units in the near-ear speaker module 4 include five full-range speaker units and one bass speaker 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 bass speaker 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 full-range speaker unit in the middle layer is used to receive rear surround channel signals; the other two full-range speaker units, when the full-range speaker unit in the middle is used to receive front surround channel signals, the full-range speaker unit in the front is used to receive left and right channel signals, or, when the full-range speaker unit in the middle is used to receive left and right channel signals, the full-range speaker unit in the front is used to receive front surround channel signals;

[0145] The woofer speaker unit is used for receiving a bass channel signal.

[0146] Embodiment 10

[0147] The specific implementation of this embodiment is as follows: taking the left half of this 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 this headset, which are symmetrically arranged with the front upper speaker 410 and the rear upper speaker 420 on the left half of this headset, receive the right front upper surround channel signal and the right rear upper surround channel signal respectively.

[0148] Taking the left half of the headset as an example, when using the system, the user can use the movie mode when watching movies, which needs to correspond to the surround system of the home theater. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle-layer full-range speaker unit is the middle-middle speaker 430 for receiving the left front surround channel signal, the full-range speaker unit located on the front side is the middle-front speaker 440 for receiving the left channel signal, and the full-range speaker unit located on the rear side is the middle-rear speaker 450 for receiving the left rear surround channel signal. The three speakers symmetrically arranged on the right half of the headset, namely the middle-middle speaker 430, the middle-front speaker 440, and the middle-rear speaker 450 on the left half of the 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 the headset as an example, when using the system, the user needs to refer to the actual orientation mode when playing games, and can adopt the game mode. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle-layer full-range speaker unit is the middle-middle speaker 430 for receiving the left channel signal, the full-range speaker unit located on the front side is the middle-front speaker 440 for receiving the left front surround channel signal, and the full-range speaker unit located on the rear side is the middle-rear speaker 450 for receiving the left rear surround channel signal. The three speakers symmetrically arranged on the right half of the headset, namely the middle-middle speaker 430, the middle-front speaker 440, and the middle-rear speaker 450 on the left half of the 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 the headset as an example, in the left near-ear speaker module 4, the bass speaker unit disposed below the middle full-range speaker unit is the lower bass speaker 460 for receiving bass channel signals. The speakers symmetrically disposed with the lower bass speaker 460 on the right half of the headset also receive bass channel signals.

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

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

[0153] In some embodiments, the near-ear speaker module housing is provided with a sound outlet corresponding to the sound outlet of the bass speaker unit. The bass speaker unit, that is, the lower bass speaker 460, is not arranged below the middle-layer full-range speaker unit, but the sound outlet of the lower bass speaker 460 is arranged below the middle-layer full-range speaker unit. When the lower bass speaker 460 has a larger volume, it is arranged behind the middle-layer full-range speaker unit, and the sound is emitted through the sound outlet. This arrangement is reasonable and optimizes the space volume occupied by the near-ear speaker module 4.

[0154] Please refer to Figure 3 and Figure 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 number of the full-range speaker units in the lower layer is three, and the number of the full-range speaker units in the upper layer is two;

[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 full-range speaker unit in the middle is used to receive front surround channel signals, the full-range speaker unit in the front is used to receive left and right channel signals, or, when the full-range speaker unit in the middle is used to receive left and right channel signals, the full-range speaker unit in the front is used to receive front surround channel signals;

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

[0159] Embodiment 11

[0160] Compared with the tenth embodiment, the eleventh embodiment cancels the lower bass speaker 460 in the left and right near-ear speaker modules 4, and instead forms a surround sound system combining far-field and near-field through an external speaker 8 and the left and right near-ear speaker modules 4; since the external speaker 8 is a single speaker, it can be easily moved. Therefore, compared with the fixed professional-grade near-field surround sound system and home theater audio, the solution provided by this application is placed in various parts of the room according to predetermined rules. When the user moves and moves, he leaves the best listening area, and the listening effect decreases; the near-field speaker system in this embodiment and the aforementioned embodiments is an open system, and the sound emitted by the far-field bass speaker can be transmitted to the human ear without hindrance, so as to achieve 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 all the time, and can move with the user. Each speaker unit keeps a distance from the user's ear, and the range will not change too much. The external speaker 8 can be easily moved by the user, so the listening effect can continue to ensure quality, does not affect the user's activities, and has a better experience.

[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 the speaker units 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] Please refer to Figure 2 , Figure 6 The top speaker module 5 is arranged on the front side of the bracket body 1; the top speaker module 5 is a woofer unit or a full-range speaker unit, which is used to receive bass channel signals.

[0163] Embodiment 12

[0164] The top speaker module 5 arranged 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] Please refer to Figure 2 , Figure 6 The number of the top speaker module 5 is at least one, which is arranged on the front side and / or the rear side of the bracket body 1 and is used to receive surround channel signals.

[0166] Embodiment 13

[0167] Please refer to Figure 2 , Figure 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 , which is used to receive upper surround channel signals.

[0168] Embodiment 14

[0169] Please refer to Figure 6 There is one top speaker module 5 , which is disposed on the rear side of the bracket body 1 . The top speaker module 5 is a rear top speaker 520 , which is used to receive upper surround channel signals.

[0170] Embodiment 15

[0171] Please refer to Figure 6 There is one top speaker module 5 , which is disposed on the rear side of the bracket body 1 . The top speaker module 5 is a rear top speaker 520 , which is used to receive rear upper surround channel signals.

[0172] Embodiment 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 upper surround channel signals.

[0174] Embodiment 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 a 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 a 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 arranged 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 arranged 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] Embodiment 19

[0180] Please refer to Figure 8 The top speaker module 5 arranged 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 arranged 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] Embodiment 20

[0182] Please refer to Figure 2 The top speaker module 5 arranged 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 arranged 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] Embodiment 21

[0184] Please refer to Fig. 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 are arranged on the lower end surface of the top of the bracket body 1 for receiving bass channel signals.

[0185] Please refer to Figure 8 and Fig. 9 , including a support plate 9, which is connected to at least the front side of the top end 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, so that the support plate 9 can be more closely attached to the user's head and the connection is more stable.

[0187] The support plate 9 is 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 in the support plate 9 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 integrated 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 of the support body 1 toward the forehead of the head. The support rear plate 920 extends from the rear connection with the top 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 wearing stability of the user. Preferably, the end surfaces of the support plate 9, the clamping sub-frame 2 and the user's head are attached with flexible pads to improve comfort.

[0190] At present, the playback of audio files is mainly carried out through devices such as speakers and headphones. Home theater sound systems can play multi-channel audio content, bringing an immersive experience. However, most multi-channel home theater sound systems have problems such as indoor wiring affecting the interior appearance, speaker placement occupying indoor space, later installation affecting the existing indoor decoration, and playback sound affecting the surrounding people. To this end, this near-field surround sound system provides the following specific solutions to solve these pain points in the existing technology:

[0191] Embodiment 22

[0192] Please refer to Fig.10 , including a top front speaker unit 540 arranged at the top front side of the bracket body 1, for receiving the center channel signal; a motorized supplementary speaker unit 10 arranged at the rear side of the bracket body 1, for receiving the motorized supplementary channel signal; at least one middle section speaker module 6 arranged in the clamping sub-frame 2, adjacent to the clamping sub-frame 2, and at any position in the connecting part 110, for receiving the 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 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 arranged at the upper and lower parts of the middle layer;

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

[0196] The woofer speaker unit is used for receiving a bass channel signal.

[0197] The specific implementation of this embodiment is as follows: taking the left half of this 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, the front upper speaker 410 and the rear upper speaker 420 on the left half of this headset and the right half of this headset, respectively receive the right front upper surround channel signals and the right rear upper surround channel signals.

[0198] Taking the left half of the headset as an example, when using the system, the user can use the movie mode when watching movies, which needs to correspond to the surround system of the home theater. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle-layer full-range speaker unit is the middle-middle speaker 430 for receiving the left front surround channel signal, the full-range speaker unit located on the front side is the middle-front speaker 440 for receiving the left channel signal, and the full-range speaker unit located on the rear side is the middle-rear speaker 450 for receiving the left rear surround channel signal. The three speakers symmetrically arranged on the right half of the headset, namely the middle-middle speaker 430, the middle-front speaker 440, and the middle-rear speaker 450 on the left half of the 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 the headset as an example, when using the system, the user needs to refer to the actual orientation mode when playing games, and can adopt the game mode. In the left near-ear speaker module 4, the full-range speaker unit in the middle of the middle-layer full-range speaker unit is the middle-middle speaker 430 for receiving the left channel signal, the full-range speaker unit located on the front side is the middle-front speaker 440 for receiving the left front surround channel signal, and the full-range speaker unit located on the rear side is the middle-rear speaker 450 for receiving the left rear surround channel signal. The three speakers symmetrically arranged on the right half of the headset, namely the middle-middle speaker 430, the middle-front speaker 440, and the middle-rear speaker 450 on the left half of the 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 the headset as an example, in the left near-ear speaker module 4, the bass speaker unit disposed below the middle full-range speaker unit is the lower bass speaker 460 for receiving bass channel signals. The speakers symmetrically disposed with the lower bass speaker 460 on the right half of the headset 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 unit, but may also be a full-range speaker unit.

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

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

[0205] Because the two near-ear speaker modules 4 are both provided with bass speaker units for balancing. If only one of the two near-ear speaker modules 4 is provided with a bass speaker unit, the headset corresponds to a 7.1.4 surround sound speaker system. Alternatively, if no bass speaker unit is provided in the two near-ear speaker modules 4, an external speaker 8 that receives bass channel signals is used in conjunction with the headset, and a 7.1.4 surround sound speaker system is also implemented accordingly.

[0206] Embodiment 23

[0207] When the upper full-range speaker unit is not provided in the left and right near-ear speaker modules 4 in the twenty-second embodiment, or the upper full-range speaker unit is provided 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, realizing the sound effect of the system;

[0208] Because the left and right near-ear speaker modules 4 are both provided with bass speaker units for balancing. If only one of the left and right near-ear speaker modules 4 is provided with a bass speaker unit, then the headset corresponds to a 7.1 surround sound speaker system. Alternatively, if no bass speaker unit is provided in the left and right near-ear speaker modules 4, an external speaker 8 that receives bass channel signals is used in conjunction with the headset, and the corresponding implementation is also a 7.1 surround sound speaker system.

[0209] Through the layout setting of Example 22 or Example 23, the 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 signal values ​​such as EQ settings, Gain increase and decrease, output limit protection (DRC), phase, delay, etc. for each channel such as left, right surround, front, rear surround, center, top surround, etc., 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 a perfect surround sound field or panoramic sound field to the user. The main control board is connected to the device that pushes and plays audio by 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] Please refer to Fig.11 - Fig.13 , taking the left ear canal entrance as the center origin O, introducing the X-axis and Y-axis plane rectangular coordinate system, taking the negative axis of the Y-axis as the starting line -YO; 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:

[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 axis in the positive direction 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 layer 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 inventor has arranged the speaker units in the system of Example 22 or Example 23 in the above-mentioned azimuth range, and ultimately can make the headphone playback sound effect reach the level of 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 can be 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 soundtracks, which are 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, playing 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 locate 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 sound field in front, and also allows users to hear an ambient sound effect in the back, allowing users to integrate into the surround of the sound field, creating a sense of presence and atmosphere, and at the same time can also play a shocking role in rendering the surround presence of the sound field, and can also enhance the texture of the sound effects of the film, 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 at 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 with this system, they can feel that the headphones restore any sound in the sky, such as airplanes hovering in the sky, thunder and rain, 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, each near-field speaker in the system does 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 essentially 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 bracket of the traditional headphone, solves the discomfort problem of stuffiness and sweating caused by the ear of the headphone user being enclosed and covered; by using the clamping sub-frame 2 to clamp the two sides of the user's head, that is, the ear root area adjacent to the two ears, the problem of stability of the connection between the improved bracket body 1 and the user's head is solved. By setting a plurality of 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, so that the headset becomes a near-field surround sound system or realizes panoramic sound effects, greatly enhancing the user experience, comparable to a standard professional home theater audio system. Moreover, compared with the home theater audio system, this near-field surround sound system is easy to carry, saves space, and is easy to use. It avoids the sound interference of the home theater audio system to the surrounding environment, such as the living environment of neighbors when it is working.

[0229] Please refer to Fig.16 Embodiment 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 Fig.17 Embodiment 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 rear.

[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 Fig.18 Embodiment 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 layouts;

[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 at the rear side of the upper layer is used to receive left and right rear surround sound channels;

[0240] The speaker unit at 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 Fig.19 Embodiment 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 front, middle and back;

[0244] The speaker unit on the front side of 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;

[0245] The speaker unit in the middle of 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;

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

[0247] The speaker unit at 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 Fig. 20 Embodiment 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 the full-range speaker units in the middle layer is two arranged front and back;

[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 at 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 a center channel signal, a left channel signal, a right channel signal, and a left front surround channel signal or a right front surround channel signal.

[0255] Please refer to Fig.21 Embodiment 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, arranged front and back;

[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 at 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 Fig. 22 Embodiment 30

[0262] 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 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, which are arranged front and back, and 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 at the rear side of the upper layer is used to receive left and right upper rear surround channel signals;

[0265] The speaker unit at 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 Fig.23 Embodiment 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 the front, middle and rear;

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

[0272] The speaker unit at 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 for receiving 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 from the user's ear auricle to 0 mm to 80 mm through the connecting portion 110.

[0278] The connection part 110 can be a metal shaping hose structure, which can be bent by the user to the desired position and then automatically shaped. Alternatively, the connection part 110 and the bracket body 1 are rotatably connected, and the rotation connection has friction damping. After the external force is removed, it is kept in the adjusted position, thereby achieving the near-ear speaker module 4 The distance from the user's ear auricle can be adjusted to 0mm to 80mm to meet the needs of the user.

Claims

1. Near field surround sound system, characterized in that, include: A bracket body, wherein two ends of the bracket body are provided with connecting parts; A clamping sub-frame, the clamping sub-frame is arranged adjacent to the upper end of the connecting portion; the clamping sub-frame is connected to two side surfaces of the bracket body, and the curvature of the clamping sub-frame is arranged to correspond to the curvatures of both sides of the head; A flexible pad, the flexible pad being arranged on the end surfaces of the bracket body, the clamping sub-frame and the head against which the bracket body and the head are in contact; A near-ear speaker module, wherein the number of the near-ear speaker modules is two and the modules 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 body, the connecting part is used to prevent the near-ear speaker module from contacting the user's ear.

2. The near-field surround sound system according to claim 1, characterized in that: It includes a top speaker module, which is connected to the bracket body and is roughly arranged at the top of the bracket body, with the sound output end facing the head.

3. The near-field surround sound system according to claim 1, characterized in that: It includes a middle section speaker module, and at least one of the middle 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 middle section speaker module is used to receive any one of left and right surround channel signals, upper left and right surround channel signals, bass channel signals, and center channel signals.

4. The near-field surround sound system according to claim 1, characterized in that: When the support body is worn by a 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.

5. The near-field surround sound system according to claim 1, characterized in that: The multiple speaker units in the near-ear speaker module include five full-range speaker units and one bass speaker 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 bass speaker unit are respectively arranged above and below the full-range speaker units in the middle layer; 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: 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; The full-range speaker unit at the rear of the full-range speaker unit in the middle layer is used to receive rear surround channel signals; the other two full-range speaker units, when the full-range speaker unit in the middle is used to receive front surround channel signals, the full-range speaker unit in the front is used to receive left and right channel signals, or, when the full-range speaker unit in the middle is used to receive left and right channel signals, the full-range speaker unit in the front is used to receive front surround channel signals; The woofer speaker unit is used for receiving a bass channel signal.

6. The near-field surround sound system according to claim 1, characterized in that: An external speaker box 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; 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: 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; 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 full-range speaker unit in the middle is used to receive front surround channel signals, the full-range speaker unit in the front is used to receive left and right channel signals, or, when the full-range speaker unit in the middle is used to receive left and right channel signals, the full-range speaker unit in the front is used to receive front surround channel signals; The external speaker is used to receive bass channel signals.

7. The near-field surround sound system according to claim 2, characterized in that: The top speaker module is arranged on the front side of the bracket body; the top speaker module is a bass speaker unit or a full-range speaker unit, which is used to receive bass channel signals.

8. The near-field surround sound system according to claim 2, characterized in that: The number of the top speaker module is at least one, which is arranged on the front side and / or the rear side of the bracket body and is used to receive surround channel signals.

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 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.

10. The near-field surround sound system according to claim 2, characterized in that: 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.

11. The near-field surround sound system according to claim 2, characterized in that: It includes a support plate, which is connected to at least the front side of the top end of the support 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 support body through the support plate.

12. The near-field surround sound system according to claim 5, characterized in that: It includes a top front speaker unit arranged on the top front side of the bracket body, used for receiving the center channel signal; a motorized supplementary speaker unit arranged on the rear side of the bracket body, used for receiving the motorized supplementary channel signal; and at least one mid-section speaker module arranged in the clamping sub-frame, adjacent to the clamping sub-frame, and at any position in the connecting part, used for receiving the motorized supplementary channel signal.

13. The near-field surround sound system according to claim 12, characterized in that: Taking the entrance of the left ear canal as the center origin, introducing the X-axis and Y-axis plane rectangular coordinate system, taking the negative axis of the Y-axis as the starting line; 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: 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°; 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°; 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°; 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°; The angle formed by the line connecting the position point of the full-range speaker unit receiving the rear upper surround channel signal and the center origin and the starting line is 110° to 125°; 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°; The angle formed by the line connecting the position point of the motorized supplementary loudspeaker unit and the central origin and the starting line is -110° to -150°; Taking the entrance of the left ear canal as the center origin, an X, Y, and Z-axis spatial rectangular coordinate system is introduced, and the axis in the positive direction of the X-axis is taken as the starting line; the near-field surround sound system is projected from a right-viewing perspective, and the angle formed by the line connecting the position point of the full-range speaker unit on the upper left layer 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 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.

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 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 front, middle and rear. 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; 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; The full-range speaker unit at the rear side is used to receive 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 the speaker units in the upper layer is two front-to-back layouts; 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; The speaker unit at the rear side of the upper layer is used to receive left and right rear surround sound channels; The speaker unit at the lower layer is used to receive rear left and right 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 the speaker units in the upper layer is three, arranged in front, middle and back; The speaker unit on the front side of 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 speaker unit in the middle of 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 speaker unit at the rear side of the upper layer is used to receive left and right rear surround sound channels; The speaker unit at the lower layer is used to receive rear left and right bass channel signals.

18. 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 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 arranged front and back; The full-range speaker unit in the upper layer is used to receive left and right upper surround channel signals; The full-range speaker unit at 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; The full-range speaker unit at the rear side of the middle layer is used to receive left and right rear surround channel signals; The full-range speaker unit in the lower layer is used to receive a center channel signal, a left channel signal, a right channel signal, and a left front surround channel signal or a right front surround channel signal.

19. 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 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, arranged front and back; 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; 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; 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; The full-range speaker unit at the rear side of the lower layer is used to receive 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, 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, which are arranged front and back, and the fifth speaker unit is arranged between the four speaker units; The speaker unit on the front side of the upper layer is used to receive left and right upper front surround channel signals; The speaker unit at the rear side of the upper layer is used to receive left and right upper rear surround channel signals; The speaker unit at the front side of the lower layer is used to receive the center channel signal and either the left or right channel signal; The speaker unit at the rear side of 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, 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, 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 front, middle and back; The upper speaker unit is used to receive left and right upper front surround channel signals; The speaker unit at 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; 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; The speaker unit at the rear side of the middle layer is used to receive left and right rear surround channel signals; The speaker unit at the lower layer is used for receiving bass channel signals.

22. The near-field surround sound system according to claim 1, characterized in that: The near-ear speaker module is adjustably connected to the bracket body via the connecting portion. When the bracket body is worn by a user, the near-ear speaker module can be adjusted to a distance from the user's ear auricle to 0 mm to 80 mm via the connecting portion.

Images