Audio equipment

Abstract

[Problem] To provide a mechanism with which it is possible to improve the quality of binaural recording. [Solution] An acoustic apparatus which can be worn by a user and is provided with a microphone. When the acoustic apparatus is worn by the user, a vibration region of the microphone is located at least in part at a position that is included in the inside of the user's ear canal and at an angle at which the vibration direction of the vibration region faces the inner wall of the ear canal.

Description

[Technical field]

[0001] The present disclosure relates to audio devices. [Background technology]

[0002] In recent years, binaural recording has been attracting attention. Binaural recording is a technology for recording the sound transmitted to the eardrums of both human ears. For binaural recording, a microphone (hereinafter simply referred to as a microphone) placed near the eardrum is used. By playing back binaurally recorded sound through earphones or headphones, it is possible to reproduce a realistic sound that makes you feel as if you were actually there.

[0003] For example, Patent Document 1 listed below proposes a binaural recording device that uses a noise-canceling microphone provided on the outside of earphones that are held in the ears by inserting earpieces into the ear canals. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-49947 A Summary of the Invention [Problem to be solved by the invention]

[0005] The device disclosed in Patent Document 1 and the like has various problems, such as the fact that a lot of wind noise is recorded.

[0006] Therefore, the present disclosure has been made in consideration of the above problems, and an object of the present disclosure is to provide a mechanism that can improve the quality of binaural recording. [Means for solving the problem]

[0007] In order to solve the above problems, according to one aspect of the present disclosure, there is provided an acoustic device wearable by a user, the acoustic device including a microphone, the microphone being positioned such that, when the acoustic device is worn by the user, at least a portion of a vibrating part of the microphone is contained inside the user's ear canal, and the vibration direction of the vibrating part is angled toward the inner wall of the ear canal.

[0008] The microphone may be disposed at an angle such that a vibration direction of the vibration part is perpendicular or substantially perpendicular to an inner wall of the ear canal when the acoustic device is worn by the user.

[0009] The acoustic device may include an insertion portion at least a portion of which is inserted into the ear canal when the acoustic device is worn by the user, and the microphone may be disposed in the insertion portion.

[0010] The insertion portion may be configured as a cylindrical body having a through hole extending in the insertion direction, and the microphone may be positioned inside the through hole with a gap provided between the microphone and the inner surface of the insertion portion.

[0011] The outer surface of the insertion portion may have a contact area that contacts the inner wall of the ear canal when the insertion portion is inserted into the ear canal, and a non-contact area that is spaced apart from the inner wall of the ear canal.

[0012] The microphone may be disposed at a position of the insertion portion farther from the user's eardrum when the audio device is worn by the user.

[0013] The acoustic device may include a first frame that is placed in the cavity of the user's concha when the acoustic device is worn by the user, and the first frame may be connected to the insertion portion.

[0014] The first frame may be configured in a ring shape, and an outer surface of the first frame may abut against the cavity of the concha when the acoustic device is worn by the user.

[0015] The first frame may be configured to have a non-uniform thickness.

[0016] The acoustic device may include a fourth frame that closes at least a portion of the ring-shaped hollow portion of the first frame.

[0017] The first frame may be configured in an arc shape, and an outer surface of the first frame may abut against the cavity of the concha when the acoustic device is worn by the user.

[0018] The acoustic device may include a filter for attenuating wind, the filter being located in at least one of the first frame or the insert.

[0019] A speaker may be disposed in contact with the first frame.

[0020] The acoustic device may include a second frame that abuts against the concha of the user when the acoustic device is worn by the user, the second frame being connected to the first frame.

[0021] The acoustic device may include a third frame that curves from the front of the user's auricle to the back of the auricle when the acoustic device is worn by the user, and the third frame may be connected to the first frame so as to pass outside the user's helical crus.

[0022] The first frame may be configured so that a portion connected to the insertion portion, the second frame, or the third frame has a greater thickness than other portions.

[0023] Furthermore, in order to solve the above-mentioned problems, according to another aspect of the present disclosure, there is provided an acoustic device wearable by a user, comprising: a microphone, a speaker, a plurality of support members supporting the speaker, and a frame that abuts the ear of the user when the acoustic device is worn by the user, wherein the microphone is positioned at a position such that at least a portion of the vibrating part of the microphone is included inside the user's ear canal when the acoustic device is worn by the user, and the plurality of support members are connected to the frame in a spaced-apart relationship with each other.

[0024] The acoustic device may include a speaker, and the speaker may be arranged such that a sound emitting portion of the speaker faces an opening of the through hole provided in the insertion portion on an opposite side to the insertion direction.

[0025] The audio device may include a speaker, and the speaker may be disposed in a position and orientation that does not interfere with the user's tragus when the audio device is worn by the user.

[0026] The audio device comprises a speaker, a frame that abuts against the user's ear when the audio device is worn by the user, a housing section that houses the speaker, and a support member connected to the frame and supporting the housing section, wherein the housing section has an opening and houses the speaker with the sound emitting section of the speaker exposed from the opening, and a speaker cable connecting the speaker to another device may be connected to the bottom of the speaker through a through hole provided in the frame and through a gap between the speaker and the housing section that communicates with the opening and the space on the bottom side of the speaker. Effect of the Invention

[0027] As described above, the present disclosure provides a mechanism that can improve the quality of binaural recording. [Brief description of the drawings]

[0028] [Figure 1]1 is a diagram showing an acoustic device according to a first embodiment of the present disclosure worn on a user's left ear as viewed from in front of the left ear. [Diagram 2] FIG. 2 is a perspective view of the audio device according to the embodiment. [Diagram 3] FIG. 2 is a front view of the acoustic device according to the embodiment. [Figure 4] FIG. 2 is a bottom view of the acoustic device according to the embodiment. [Diagram 5] 9 is a perspective view showing a cross section of the acoustic device taken along line 9-9 in FIG. [Figure 6] 2 is a diagram showing a schematic arrangement of a sound collection unit of the acoustic device according to the embodiment; FIG. [Figure 7] FIG. 4 is a diagram illustrating a thickness of a first frame according to the embodiment. [Figure 8] FIG. 2 is a front view of an acoustic device according to a first modified example. [Figure 9] FIG. 11 is a perspective view of an audio device according to a second modified example. [Figure 10] FIG. 13 is a perspective view of an audio device according to a third modified example. [Figure 11] FIG. 13 is a diagram illustrating a schematic configuration of an audio device according to a fourth modified example. [Figure 12] FIG. 13 is a diagram illustrating a schematic configuration of an audio device according to a fourth modified example. [Figure 13] FIG. 2 is a diagram for explaining an example of speaker arrangement. [Figure 14] FIG. 2 is a diagram for explaining an example of speaker arrangement. [Figure 15] FIG. 2 is a diagram for explaining an example of speaker arrangement. [Figure 16] FIG. 2 is a diagram for explaining an example of speaker arrangement. [Figure 17] 11 is a diagram showing an acoustic device according to a second embodiment worn on a user's left ear as viewed from in front of the left ear. FIG. [Figure 18] FIG. 2 is a perspective view of the audio device according to the embodiment. [Figure 19] 2 is a front view of a frame portion of the audio device according to the embodiment. FIG. [Figure 20]4 is a rear view of the frame portion of the audio device according to the embodiment. FIG. [Figure 21] 4 is a right side view of the frame portion of the audio device according to the embodiment. FIG. [Figure 22] 4 is a left side view of a frame portion of the audio device according to the embodiment. FIG. [Diagram 23] 2 is a plan view of a frame portion of the audio device according to the embodiment. FIG. [Figure 24] 4 is a bottom view of the frame portion of the audio device according to the embodiment. FIG. [Diagram 25] 2 is a perspective view showing a state in which a speaker cable and a microphone cable are connected to the audio device according to the embodiment. FIG. [Figure 26] 19 is a cross-sectional view showing a cross section of the acoustic device taken along line 7-7 shown in FIG. 18. [Figure 27] 19 is a cross-sectional view showing a cross section of the acoustic device taken along line 8-8 shown in FIG. 18. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In this specification and the drawings, components having substantially the same functional configurations are denoted by the same reference numerals, and redundant description will be omitted.

[0030] <1.Technical issues> Playing back binaurally recorded content is also called binaural playback. In order to improve the sense of realism of the content, it is desirable to perform advance measurement and binaural playback using a microphone and a speaker whose relative positions to the eardrum are fixed. In advance measurement, device characteristics and user pinna characteristics are measured by recording the sound output from the speaker with a microphone. In binaural playback, binaurally recorded content is played back after applying a digital filter based on the inverse characteristics of the device characteristics and the inverse characteristics of the pinna characteristics measured in advance.

[0031] The above-mentioned Patent Document 1 discloses an ear canal insertion type device that is held in the ear by inserting an earpiece into the ear canal, and has a speaker and a microphone. When the device is held in the ear, the microphone is exposed to the outside world and is held facing the outside world. Such binaural recording devices that have been developed so far have various disadvantages.

[0032] First, there were cases where a lot of wind noise was recorded. Wind noise is noise detected due to the influence of wind. In particular, wind noise detected due to the influence of voices is also called pop noise. If there is a lot of wind noise, the quality of the binaural recording will be significantly reduced.

[0033] Secondly, when the ear canal is blocked by an ear canal insertion type device, it is difficult for the user to clearly hear surrounding sounds.

[0034] Therefore, the present disclosure provides an audio device that can solve the above-described technical problems.

[0035] 2. First embodiment <2.1. Configuration example> An example of the configuration of an acoustic device 1 according to a first embodiment of the present disclosure will be described below with reference to Figs. 1 to 6. Fig. 1 is a diagram showing an acoustic device 1 according to this embodiment worn on a user's left ear, viewed from the front of the left ear. Fig. 2 is a perspective view of the acoustic device 1 according to this embodiment. Fig. 3 is a front view of the acoustic device 1 according to this embodiment. Fig. 4 is a bottom view of the acoustic device 1 according to this embodiment. Fig. 5 is a perspective view showing a cross section of the acoustic device 1 taken along the arrows 9-9 shown in Fig. 3. Fig. 6 is a diagram showing a schematic arrangement of a sound pickup section 50 of the acoustic device 1 according to this embodiment.

[0036] As shown in Fig. 1, the acoustic device 1 can be worn by a user. Although Figs. 1 to 6 show the configuration of the acoustic device 1 worn on the left ear of the user, the acoustic device 1 for the right ear is configured symmetrically thereto. As shown in Figs. 1 to 6, the acoustic device 1 has an insertion section 10, a first frame 20, a second frame 30, a third frame 40, and a sound pickup section 50.

[0037] 6, when the audio device 1 is worn by a user, at least a portion of the insertion portion 10 is inserted into the ear canal 98. The insertion portion 10 is inserted from the entrance of the ear canal 98 to the eardrum side along the direction in which the ear canal 98 extends (hereinafter also referred to as the insertion direction). The side of the insertion portion 10 that is inserted into the eardrum is also referred to as the tip, and the opposite side is also referred to as the end.

[0038] The insertion portion 10 may be made of an elastic material such as silicone resin. The insertion portion 10 is held in the ear canal 98 in a state inserted into the ear canal 98 by a restoring force generated when the insertion portion 10 is deformed to conform to the shape of the ear canal 98. The outer diameter of at least a part of the insertion portion 10 may be equal to or greater than the inner diameter of the ear canal 98. In this case, the insertion portion 10 is compressed from the outer periphery by the ear canal 98 and is held more firmly in the ear canal 98. The outer diameter of the insertion portion 10 is the length of the insertion portion 10 in a direction perpendicular to the insertion direction.

[0039] The sound collection unit 50 is a device that acquires surrounding sounds. More specifically, the sound collection unit 50 converts sounds resonating in the surrounding space into analog signals and outputs the converted analog signals. The sound collection unit 50 may be a so-called microphone (hereinafter, also simply referred to as a microphone). The sound collection unit 50 may be, for example, a condenser microphone or a MEMS (Micro Electro Mechanical Systems) microphone. As the condenser microphone, in addition to a microphone that applies a direct current voltage to a diaphragm from the outside, a so-called electret condenser microphone that uses an electret element in a diaphragm, a back plate, or a back chamber may be used. The sound collection unit 50 may also be a dynamic microphone such as a moving coil type. In the following, the sound collection unit 50 will be described as a microphone. An ADC (Analog Digital Converter), an amplifier, a recording device, and the like may be connected to the sound collection unit 50.

[0040] As shown in Figs. 5 and 6, the sound collection unit 50 has a vibrating part 51 and a sound hole 52. The vibrating part 51 is a member that vibrates in response to an incoming sound. The vibrating part 51 may be a diaphragm or a vibrating membrane. The sound hole 52 is a hole opened in the housing of the sound collection unit 50, and connects the space inside the sound collection unit 50 in which the vibrating part 51 is provided to the outside world. The sound that has arrived at the sound collection unit 50 passes through the sound hole 52 and reaches the vibrating part 51, causing the vibrating part 51 to vibrate. The vibration of the vibrating part 51 is converted into an electrical signal as sound.

[0041] 5 and 6, the sound collection unit 50 is disposed in the insertion unit 10. With this configuration, when the audio device 1 is worn by a user, the sound collection unit 50 is disposed in a position close to the user's eardrum, thereby making it possible to improve the quality of binaural recording.

[0042] As shown in Figs. 5 and 6, the insertion section 10 is a cylindrical body having a through hole 11 penetrating in the insertion direction. The sound collection section 50 is disposed inside the through hole 11 with a gap provided between the sound collection section 50 and the inner surface 10a of the insertion section 10 (i.e., the wall surface of the through hole 11). With this configuration, sound arriving from the outside world passes through the through hole 11 from the distal end opening 11b to the distal end opening 11a and reaches the user's eardrum. Therefore, the user can clearly hear surrounding sounds while wearing the audio device 1. The sound collection section 50 can record sounds arriving from the outside world and passing through the through hole 11.

[0043] In FIG. 6, the outer surface 10b of the insertion portion 10 and the inner wall 98a of the ear canal 98 are in contact with each other, but there may be a gap between them. That is, the outer surface 10b of the insertion portion 10 may have a non-contact area separated from the inner wall 98a of the ear canal 98 in addition to a contact area that contacts the inner wall 98a of the ear canal 98. The non-contact area is configured as a groove extending in the insertion direction, for example, and a gap that communicates the space on the tip side and the space on the end side of the insertion portion 10 is formed between the non-contact area and the inner wall 98a of the ear canal 98. Then, the sound that passes through the gap may arrive from the tip side opening 11a into the through hole 11 and be recorded by the sound pickup unit 50. The user can hear the sound that passes through the gap.

[0044] The insertion section 10 may be configured to have a size that does not seal the entrance of the ear canal 98. Sealing here means that the entire circumference of the outer surface 10b of the insertion section 10 is in contact with the inner wall 98a of the ear canal 98. With this configuration, a gap that communicates the space on the tip side and the space on the end side of the insertion section 10 may be formed between the outer surface 10b of the insertion section 10 and the inner wall 98a of the ear canal 98. In this case, the user can hear the sound that has passed through this gap.

[0045] Here, as shown in FIG. 6, the sound pickup unit 50 is arranged at a position where at least a part of the vibration part 51 is included inside the ear canal 98 of the user and at an angle where the vibration direction 51a of the vibration part 51 faces the inner wall 98a of the ear canal 98 when the audio device 1 is worn by the user. With this configuration, the vibration part 51 is arranged at a position close to the eardrum of the user, so that it is possible to improve the quality of binaural recording. In addition, it is considered that the direction of arrival of wind from the outside world coincides or approximately coincides with the insertion direction. In this regard, by arranging the vibration part 51 at such an angle, the vibration direction 51a of the vibration part 51 and the direction of arrival of wind can be shifted. Therefore, it is possible to reduce the vibration of the vibration part 51 caused by the arrival of wind, and therefore it is possible to reduce wind noise.

[0046] Incidentally, at least a part of the vibration part 51 being included inside the ear canal 98 may be considered as at least a part of the sound hole 52 being included inside the ear canal 98. Similarly, the vibration direction of the vibration part 51 facing the inner wall 98a of the ear canal 98 may be considered as the sound hole 52 facing the inner wall 98a of the ear canal 98. In addition, with regard to the relationship with the insertion part 10, the sound pickup part 50 is disposed at an angle such that the vibration direction 51a of the vibration part 51 or the direction in which the sound hole 52 faces faces the inner surface 10a of the insertion part 10.

[0047] 6, it is preferable that the sound collection unit 50 is disposed at an angle such that the vibration direction 51a of the vibration part 51 is perpendicular or substantially perpendicular to the inner wall 98a of the ear canal 98 when the audio device 1 is worn by the user. More simply, it is preferable that the sound collection unit 50 is disposed at an angle such that the vibration part 51 is parallel or substantially parallel to the ear canal 98. With this configuration, it is possible to make the vibration direction 51a of the vibration part 51 perpendicular or substantially perpendicular to the direction in which the wind is coming. That is, it is possible to minimize the vibration of the vibration part 51 caused by the coming wind, and therefore it is possible to further reduce wind noise.

[0048] The vibration direction 51a of the vibration part 51 being perpendicular or approximately perpendicular to the inner wall 98a of the ear canal 98 may be understood as the direction in which the sound hole 52 faces being perpendicular or approximately perpendicular to the inner wall 98a of the ear canal 98. In addition, in terms of its relationship with the insertion part 10, the sound pickup part 50 is disposed at an angle such that the vibration direction 51a of the vibration part 51 or the direction in which the sound hole 52 faces is perpendicular or approximately perpendicular to the inner surface 10a of the insertion part 10.

[0049] 6, the sound pickup unit 50 may be disposed at a position of the insertion unit 10 farther from the user's eardrum when the audio device 1 is worn by the user. For example, the sound pickup unit 50 may be disposed at a side of the through-hole 11 of the insertion unit 10 closer to the distal opening 11b. With this configuration, it becomes possible to record sounds arriving from the outside world with higher sound quality.

[0050] As shown in Figs. 1 to 6, the first frame 20 is connected to the insertion section 10. Then, as shown in Fig. 1, the first frame 20 is disposed in the cavity of the concha 92 when the audio device 1 is worn by a user. With this configuration, the movement of the insertion section 10 can be restricted by the positional relationship between the first frame 20 and the cavity of the concha 92. For example, it is possible to prevent the insertion section 10 from being displaced, such as being excessively inserted into the ear canal 98, coming out of the ear canal 98, or rotating within the ear canal 98.

[0051] 1, when the audio device 1 is worn by a user, the outer surface 20b of the first frame 20 abuts against the cavity of the concha 92. The first frame 20 may be made of an elastic material such as silicone resin. The first frame 20 may be held in the cavity of the concha 92 in a state of abutment against the cavity of the concha 92 by a restoring force that is generated when the first frame 20 is deformed to conform to the shape of the cavity of the concha 92. In this case, it is possible to prevent the audio device 1 from shifting in position.

[0052] As shown in Figs. 1 to 3, the first frame 20 is configured in a ring shape. Therefore, as shown in Fig. 1, when the audio device 1 is worn by the user, the cavity of the concha 92 is exposed to the outside world through a hollow portion 21 surrounded by the inner surface 20a of the first frame 20 configured in a ring shape. Therefore, the reflection characteristics of the cavity of the concha 92 of the user are reflected in the binaurally recorded sound, so that the quality of the binaural recording can be improved. Furthermore, by configuring the first frame 20 in a ring shape, the deformation of the first frame 20 according to the shape of the cavity of the concha 92 is sufficiently allowed. In other words, the shape of the cavity of the concha 92 can be maintained before and after the audio device 1 is worn by the user. Therefore, it is possible to prevent the change in the reflection characteristics of the cavity of the concha 92 of the user before and after wearing the audio device 1, and improve the quality of the binaural recording.

[0053] 1 to 5, the insertion section 10, the second frame 30, and the third frame 40 are each connected to the first frame 20. The insertion section 10, the first frame 20, the second frame 30, and the third frame 40 may each be made of the same material. In that case, the insertion section 10, the first frame 20, the second frame 30, and the third frame 40 may be integrally molded.

[0054] As shown in Fig. 2, second frame 30 may be configured in a crescent shape. Second frame 30 is composed of first columnar bodies 31 that are curved in an arc-like or approximately arc-like shape to form an outer arc of the crescent shape, second columnar bodies 32 that are curved in an arc-like or approximately arc-like shape to form an inner arc of the crescent shape, and third columnar bodies 33 that connect first columnar body 31 and second columnar body 32. One ends of first columnar body 31 and second columnar body 32 are connected to each other to form tip 34. On the other hand, the other ends of first columnar body 31 and second columnar body 32 are each connected to first frame 20.

[0055] As shown in Fig. 1, the second frame 30 abuts against the concha 91 of the user when the audio device 1 is worn by the user. More specifically, the first columnar body 31 abuts against the antihelix 94 or antihelix crus 95 side of the concha 91. On the other hand, the second columnar body 32 abuts against the crus helix 93 side of the concha 91. The second frame 30 is engaged with the concha 91 with the tip 34 of the second frame 30 hooked on the crus helix 93 from the concha 91 side. This configuration makes it possible to prevent the audio device 1 from shifting position due to the user's actions.

[0056] 1 and 2, the third frame 40 curves from the front of the user's auricle 90 to the back of the auricle 90 so as to pass outside the user's helical crus 93 when the audio device 1 is worn by the user. One end of the third frame 40 is connected to the first frame 20. The other end of the third frame 40 is located at the back of the auricle 90 when the audio device 1 is worn by the user. The audio device 1 is worn by the user with the third frame 40 hung on the auricle 90. With this configuration, it is possible to prevent the audio device 1 from falling.

[0057] The first frame 20 is configured to have an uneven thickness. For example, as shown in Figs. 1 to 4, the first frame 20 may be provided with a notch 22. The thickness of the portion where the notch 22 is provided is thinner than the thickness of the other portions. As shown in Fig. 1, the notch 22 may be provided at a position that abuts against a relatively shallow lower portion of the cavity of the concha 92 when the acoustic device 1 is worn by a user. In this case, it is possible to improve the wearability of the acoustic device 1 while maintaining the strength of the first frame 20 in the thick portion of the first frame 20. In addition, by configuring the portion that abuts against the relatively shallow portion of the cavity of the concha 92 to be thin, like the notch 22, it is possible to reduce changes in the reflection characteristics of the cavity of the concha 92 caused by wearing the acoustic device 1, and improve the quality of binaural recording.

[0058] In particular, it is desirable that the first frame 20 is configured so that the thickness of the portion connected to the insertion portion 10, the second frame 30, or the third frame 40 is thicker than the thickness of the other portions. For example, it is desirable that the portion of the first frame 20 to which the insertion portion 10, the second frame 30, or the third frame 40 is connected is thicker, and that the notch 22 is provided at a position away from these portions. With this configuration, it is possible to improve the fit of the acoustic device 1 to the first frame 20 while ensuring the strength for connecting the insertion portion 10, the second frame 30, and the third frame 40 to the first frame 20. The thickness of the first frame 20 will be described in detail with reference to FIG. 7.

[0059] FIG. 7 is a diagram for explaining the thickness of the first frame 20 according to this embodiment. As shown in FIG. 7, it is desirable that the portion 28a to which the insertion unit 10 is connected and the portion 28b to which the second frame 30 and the third frame 40 are connected are thick in the first frame 20. On the other hand, at least a part of the portions 29a and 29b of the first frame 20 sandwiched between the portion 28a to which the insertion unit 10 is connected and the portion 28b to which the second frame 30 and the third frame 40 are connected may be thin. Regarding the positional relationship with the auricle 90, when the audio device 1 is worn by a user, at least a part of the portion 29a of the first frame 20 from the lower portion of the concha 92 to the vicinity of the boundary between the concha 92 and the concha 91, or the portion 29b near the crus helicalis 93 may be thin.

[0060] <2.2. Modifications> (1) First Modification Fig. 8 is a front view of an audio device 1 according to a first modified example. As shown in Fig. 8, the audio device 1 according to this modified example has a filter 60 that attenuates wind. The filter 60 is a member that has breathability and blocks the passage of wind. The filter 60 is made of a resin material such as urethane in a sponge-like form. Alternatively, the filter 60 may be made of a fur material, for example.

[0061] The filter 60 is disposed in at least one of the insertion section 10 and the first frame 20. In the example shown in FIG. 8, the filter 60 is disposed in the insertion section 10 and the first frame 20. More specifically, the filter 60 is disposed so as to block at least a part of the distal end opening 11b of the through hole 11 of the insertion section 10. With this configuration, it is possible to attenuate the wind that arrives from the outside world into the ear canal 98 and reaches the sound collection section 50. In addition, the filter 60 is disposed so as to block at least a part of the hollow portion 21 of the first frame 20. With this configuration, it is possible to attenuate the wind that arrives from the outside world and is reflected at the cavity of the concha 92, and as a result, it is possible to attenuate the wind that reaches the sound collection section 50. In this way, it is possible to further reduce wind noise.

[0062] (2) Second modified example FIG. 9 is a perspective view of an acoustic device 1 according to a second modified example. As shown in FIG. 9, the acoustic device 1 according to this modified example has a fourth frame 23 that closes at least a part of the ring-shaped hollow portion 21 of the first frame 20. In the example shown in FIG. 9, the fourth frame 23 is configured in a plate shape with the same height as the notch 22, and is connected to the first frame 20 so as to close the opening of the hollow portion 21 on the side closer to the concha 92. The first frame 20 and the fourth frame 23 can be molded integrally. With this configuration, it is possible to further increase the strength of the first frame 20. In addition, when a filter 60 is arranged in the acoustic device 1, it is possible for the fourth frame 23 to hold the filter 60 more firmly.

[0063] The fourth frame 23 may be configured in a mesh shape. In this case, the cavity of the concha 92 is exposed to the outside world through the gaps in the mesh. Therefore, the reflection characteristics of the cavity of the concha 92 of the user are reflected in the binaurally recorded sound, which improves the quality of the binaural recording.

[0064] (3) Third modified example FIG. 10 is a perspective view of the acoustic device 1 according to the third modified example. As shown in FIG. 10, the first frame 20 according to this modified example is configured in an arc shape. The first frame 20 shown in FIG. 10 has a shape obtained by removing the portion of the first frame 20 described in the above embodiment where the notch 22 is provided. As in the above embodiment, when the acoustic device 1 according to this modified example is worn by a user, the outer surface 20b of the first frame 20 abuts against the concha cavity 92. This configuration makes it possible to prevent the acoustic device 1 from shifting position, as in the above embodiment. Furthermore, in this modified example, the acoustic device 1 can be made lighter than in the above embodiment, so that the wearing comfort can be further improved.

[0065] The position and range of the portion to be cut out of the first frame 20 are not limited to the example shown in Fig. 10. Any position and range of the thin configurable portion 29a or 29b described with reference to Fig. 7 may be cut out.

[0066] (4) Fourth modified example Figures 11 and 12 are diagrams showing a schematic configuration of an acoustic device 1 according to a fourth modified example. Figure 11 shows a schematic view of a portion of the acoustic device 1 inserted into an ear canal 98. Figure 12 shows a schematic view of the portion of the acoustic device 1 inserted into the ear canal 98 as viewed from the outside of the ear canal 98.

[0067] As shown in FIG. 11 and FIG. 12, the insertion portion 10 may be configured in a plate shape. The outer surface 10b of the insertion portion 10 configured in a plate shape has a contact area 10b-1 that contacts the inner wall 98a of the ear canal 98 and a non-contact area 10b-2 that is separated from the inner wall 98a of the ear canal 98 when the insertion portion 10 is inserted into the ear canal 98. The contact area 10b-1 and the non-contact area 10b-2 are surfaces of the outer surface 10b of the insertion portion 10 configured in a plate shape that extend in the insertion direction. The distance between the opposing contact areas 10b-1 is equal to or greater than the inner diameter of the ear canal 98. Therefore, the insertion portion 10 is inserted into the ear canal 98 so as to push open the ear canal 98 by the two contact areas 10b-1, and is held in the ear canal 98. On the other hand, the distance between the opposing non-contact areas 10b-2 is less than the inner diameter of the ear canal 98. Therefore, when the insertion unit 10 is inserted into the ear canal 98, a gap is provided between the non-contact area 10b-2 and the inner wall 98a of the ear canal 98. With this configuration, sounds arriving from the outside world pass through the gap and reach the user's eardrum. Therefore, the user can clearly hear surrounding sounds while wearing the acoustic device 1. As shown in Figs. 11 and 12, the sound pickup unit 50 is disposed in the non-contact area 10b-2. Therefore, the sound pickup unit 50 can record sounds arriving from the outside world and passing through the gap.

[0068] Of course, the shape of the insertion part 10 is not limited to a plate shape. The shape of the insertion part 10 is arbitrary as long as the insertion part 10 is provided with a contact area 10b-1 and a non-contact area 10b-2, and a gap is provided between the non-contact area 10b-2 and the inner wall 98a of the ear canal 98.

[0069] 11 and 12, both of the two opposing outer surfaces 10b-1 of the plate-shaped insertion portion 10 are in contact with the inner wall 98a of the ear canal 98, but the portion of the insertion portion 10 that is in contact with the inner wall 98a of the ear canal 98 is not limited to this example. For example, depending on the structure of other parts of the insertion portion 10, one of the two opposing outer surfaces 10b-1 may be in contact with the inner wall 98a of the ear canal 98, and the other may not be in contact.

[0070] <2.3. Speaker placement> (1) First layout example Fig. 13 is a diagram for explaining an example of speaker arrangement. As shown in Fig. 13, ear-cuff type headphones 100A may be worn by a user so as to cover a part of an audio device 1 worn by the user. The headphones 100A include a speaker 110A and a frame 120A.

[0071] The speaker 110A is a device that outputs sound. More specifically, the speaker 110A converts an input analog signal into sound and emits it into the surrounding space. A DAC (Digital Analog Converter), an amplifier, a playback device, and the like may be connected to the speaker 110A. The speaker 110A may be used to acquire the output sound from the speaker 110A by the sound pickup unit 50 and measure the device characteristics and the pinna characteristics. The speaker 110A may also be used for binaural playback.

[0072] The frame 120A is a member that holds the speaker 110A on the auricle 90. When the headphones 100A are worn by a user, the frame 120A curves from the front of the auricle 90 to the back of the auricle 90 so as to pass outside at least one of the helix 96 or the earlobe 97. The speaker 110A is connected to one end of the frame 120A. The frame 120A holds the auricle 90 from the front and back of the auricle 90 between the speaker 110A connected to one end of the frame 120A and the other end of the frame 120A.

[0073] The speaker 110A is disposed in contact with the first frame 20. In particular, if the first frame 20 is provided with a notch 22, the speaker 110A may be positioned to fit into the notch 22, as shown in Fig. 13. In this case, the notch 22 can guide the wearing position of the headphones 100A. The notch 22 can also reduce interference between the audio device 1 and the headphones 100A.

[0074] Of course, the speaker 110A may be disposed in a non-contact manner on the first frame 20. In that case, it is desirable for the speaker 110A to be in contact with the auricle 90 so that its position is fixed.

[0075] (2) Second layout example Fig. 14 is a diagram for explaining an example of speaker arrangement. As shown in Fig. 14, over-the-ear headphones 100B may be worn by a user so as to cover a part of an audio device 1 worn by the user. The headphones 100B include a speaker 110B and a frame 120B.

[0076] The configuration of speaker 110B is similar to that described in the first arrangement example.

[0077] The frame 120B is a member that holds the speaker 110B on the auricle 90. The frame 120B curves so as to pass over the user's head when the headphones 100B are worn by the user. The two speakers 110B arranged at both ears are connected to both ends of the frame 120B. The frame 120B holds the user's head from the left and right sides with the two speakers 110B arranged at both ears.

[0078] Speaker 110B is disposed in contact with first frame 20. In particular, speaker 110B is disposed so as to be in contact with the top surface of first frame 20. A member for preventing slipping or vibration may be provided on the top surface of first frame 20. The member may be formed in a sponge-like shape using a resin material such as urethane. In this case, it is possible to prevent noise caused by friction between first frame 20 and speaker 110B.

[0079] Of course, the speaker 110B may be disposed in a non-contact manner on the first frame 20. In that case, it is desirable for the speaker 110B to be in contact with the auricle 90 so that its position is fixed.

[0080] Note that, as headphones that are worn by a user so as to cover a part of the audio device 1 worn by the user, in addition to the above-mentioned over-the-ear type headphones, overhead type headphones are also considered.

[0081] (3) Third arrangement example Fig. 15 is a diagram for explaining an example of speaker arrangement. As shown in Fig. 15, a speaker 110C may be arranged in an audio device 1 worn by a user.

[0082] The configuration of speaker 110C is similar to the configuration described in the first arrangement example.

[0083] The first frame 20 is provided with three supports 24. The supports 24 are members that detachably connect the speaker 110C to the first frame 20. The supports 24 may be protrusions made of an elastic body such as silicone resin. When the speaker 110C is placed in a space surrounded by the three supports 24, the three supports 24 are pushed apart by the speaker 110C and sandwich the speaker 110C by their restoring force. Of course, the number, shape, and holding method of the supports 24 are not limited to the example described above.

[0084] (4) Fourth layout example Fig. 16 is a diagram for explaining an example of speaker arrangement. As shown in Fig. 16, a speaker 110D may be arranged in an audio device 1 worn by a user.

[0085] The configuration of speaker 110D is similar to the configuration described in the first arrangement example.

[0086] The speaker 110D is disposed in contact with the first frame 20. In particular, the speaker 110D is fixed to the first frame 20.

[0087] (5) Summary The first to fourth Layout exampleIn each of the above, the speakers 110 (110A to 110D) are disposed in contact with the first frame 20. Therefore, the relative positional relationship between the user's eardrum, the sound collection unit 50, and the speakers 110 can be fixed or approximately fixed. Therefore, when content binaurally recorded using the sound collection unit 50 is binaurally played back from the speakers 110, it is possible to sufficiently improve the sense of realism.

[0088] In addition, the third and fourth Layout example In the above, it is desirable that the speaker 110, when placed in the first frame 20, covers a part of the hollow portion 21 and leaves the other part open to the outside world. This is because it allows ambient sounds to be recorded and the speaker 110 functions as a filter 60 to attenuate wind.

[0089] 3. Second embodiment An example of the configuration of the audio device 1 according to the second embodiment will be described below with reference to FIGS.

[0090] FIG. 17 is a diagram showing the state in which the acoustic device 1 according to this embodiment is worn on the left ear of a user, as viewed from the front of the left ear. FIG. 18 is a perspective view of the acoustic device 1 according to this embodiment. FIG. 19 is a front view of the frame portion of the acoustic device 1 according to this embodiment. FIG. 20 is a rear view of the frame portion of the acoustic device 1 according to this embodiment. FIG. 21 is a right side view of the frame portion of the acoustic device 1 according to this embodiment. FIG. 22 is a left side view of the frame portion of the acoustic device 1 according to this embodiment. FIG. 23 is a plan view of the frame portion of the acoustic device 1 according to this embodiment. FIG. 24 is a bottom view of the frame portion of the acoustic device 1 according to this embodiment. The frame portion of the acoustic device 1 shown in FIGS. 19 to 24 refers to the portion of the configuration of the acoustic device 1 shown in FIGS. 17 and 18 other than the sound pickup unit 50 and the speaker 110.

[0091] As shown in Figs. 17 and 18, the acoustic device 1 according to this embodiment has an insertion unit 10, a first frame 20, a second frame 30, and a sound collection unit 50, similar to the acoustic device 1 according to the first embodiment. On the other hand, unlike the acoustic device 1 according to the first embodiment, the acoustic device 1 according to this embodiment does not have a third frame 40, but has a fifth frame 70 and a speaker 110. The acoustic device 1 is attached to the front of the auricle 90 with the second frame 30 abutting the antihelix crus 95 side of the concha 91, the first frame 20 abutting the concha cavity 92, and the insertion unit 10 inserted into the ear canal. The speaker 110 is disposed in front of the auricle 90, for example, in front of the concha cavity 92, when the acoustic device 1 is attached to the user.

[0092] The configurations of the insertion section 10, the first frame 20, the second frame 30, and the sound collection section 50 are as described above, and therefore a detailed description thereof will be omitted.

[0093] The configuration of speaker 110 is also as described above. However, in the example shown in Fig. 18, speaker 110 is configured in a cylindrical shape with a surface on which sound emitting unit 111 is provided and bottom surface 113 at both ends. Sound emitting unit 111 is a part of speaker 110 that radiates sound to the outside of speaker 110. Specifically, sound emitting unit 111 may be a diaphragm, or may be a hole that communicates with a space inside speaker 110 in which the diaphragm is arranged.

[0094] The fifth frame 70 is a member that supports the speaker 110. As shown in Figures 18 to 24, the fifth frame 70 includes a speaker case 71, a plurality of claw portions 74 (74a and 74b), and a plurality of support members 79 (79a and 79b).

[0095] Speaker case 71 is an example of a housing that houses speaker 110. Speaker case 71 is configured as a bottomed tubular body having opening 72. In the example shown in Figs. 17 to 24, speaker case 71 is configured in a cylindrical shape to match the shape of speaker 110. Speaker case 71 houses speaker 110 inserted from opening 72. Also, as shown in Figs. 18 to 24, speaker case 71 is provided with a groove 73. In groove 73, a cable connected to speaker 110 is placed, as described below.

[0096] 18 and 19, claw portion 74 is a protrusion that protrudes from the outside to the inside of opening 72 at the end of speaker case 71 on the opening 72 side. Claw portion 74 supports the end of speaker 110 on the opening 72 side so that speaker 110 housed in speaker case 71 does not jump out. A user can insert or remove speaker 110 into or from speaker case 71 by pushing claw portion 74a and claw portion 74b in opposite directions to open them.

[0097] The support member 79 is a member that is connected to the first frame 20 and supports the speaker case 71. In other words, the support member 79 is a member that supports the speaker 110. One end of the support member 79 is connected to the first frame 20, and the other end is connected to the speaker case 71. The support member 79 supports the speaker 110 in a state in which the speaker 110 is separated from the first frame 20. With this configuration, it is possible to ensure a gap through which sound arriving from the outside world can pass.

[0098] As described above, in the acoustic device 1 according to this embodiment, the speaker 110 is supported by the fifth frame 70, so that the positions of the sound collection unit 50 and the speaker 110 are fixed. As a result, the relative positional relationship between the user's eardrum, the sound collection unit 50, and the speaker 110 can be fixed or approximately fixed. Therefore, when the sound for measuring the pinna characteristics is output from the speaker 110, it is possible to improve the measurement accuracy of the pinna characteristics. As a result, when content binaurally recorded using the sound collection unit 50 is binaurally played back from the speaker 110, it is possible to sufficiently improve the sense of realism.

[0099] In the example shown in Figs. 17 to 24, the acoustic device 1 has two support members 79 each formed in a rod shape. These two support members 79 are connected to the first frame 20 in a state separated from each other. It is desirable that the two support members 79 are disposed as separated from each other as possible. As shown in Fig. 24, the support members 79a and 79b may be disposed separated from each other by about 90° in a bottom view. With this configuration, it is possible to eliminate directional dependency regarding sounds that avoid the support members 79 and reach the user's eardrum.

[0100] The configuration of the support members 79 is not limited to a rod shape, and may be curved, etc. Furthermore, the number of support members 79 that the audio device 1 has is not limited to two, and may be three or more. As the number of support members 79 increases, the support members 79 may be made thinner. Of course, the number of support members 79 that the audio device 1 has may be one.

[0101] As shown in FIG. 18, the speaker 110 is disposed in a state where the sound emitting part 111 of the speaker 110 faces the distal end opening 11b, which is an opening on the opposite side of the insertion direction, of the through hole 11 provided in the insertion part 10. More specifically, as shown in FIG. 19 and FIG. 20, the speaker case 71 is supported by the support member 79 in a state where the opening 72 of the speaker case 71 faces the distal end opening 11b. Then, as shown in FIG. 18, the speaker 110 is housed in the speaker case 71 in a state where the sound emitting part 111 is exposed from the opening 72. With this configuration, the distance between the sound emitting part 111 of the speaker 110 and the eardrum of the user can be minimized. As a result, it is possible to improve the quality of the sound (including the volume and the S / N ratio (signal-noise ratio)) heard by the user. Also, with this configuration, the distance between the sound emitting part 111 of the speaker 110 and the sound collecting part 50 can be minimized. As a result, it is possible to improve the measurement accuracy of the pinna characteristics when the sound for measuring the pinna characteristics is output from the speaker 110. Furthermore, due to the synergistic effect of these, it is possible to further improve the sense of realism when binaural reproduction is performed using the speaker 110.

[0102] As shown in FIG. 17, the speaker 110 is disposed at a position and in a posture that does not interfere with the user's tragus 99 when the audio device 1 is worn by the user. Specifically, when the audio device 1 is worn by the user, the speaker case 71 housing the speaker 110 is supported by the support member 79 at a position and in a posture that is separated from the user's tragus 99. In the example shown in FIG. 17, the end of the speaker case 71 housing the speaker 110 on the opening 72 side is disposed on the inner side of the user's tragus 99 (i.e., on the concha cavity 92 side) and closer to the eardrum. Of course, the end of the speaker case 71 housing the speaker 110 on the opening 72 side may be disposed on the outer side of the user's tragus 99 and / or farther from the eardrum. In any case, it is possible to improve the wearing comfort of the audio device 1.

[0103] Next, the connection of cables to the sound pickup unit 50 and the speaker 110 will be described with reference to FIGS.

[0104] Fig. 25 is a perspective view showing a state in which a speaker cable 131 and a microphone cable 132 are connected to an audio device 1 according to this embodiment. Fig. 26 is a cross-sectional view showing a cross section of the audio device 1 taken along line 7-7 in Fig. 18. Fig. 27 is a cross-sectional view showing a cross section of the audio device 1 taken along line 8-8 in Fig. 18. Note that the speaker cable 131 and the microphone cable 132 are omitted in Figs. 26 and 27.

[0105] 25, one end of a speaker cable 131 is connected to the speaker 110, and one end of a microphone cable 132 is connected to the sound collection unit 50. The speaker cable 131 is a signal path that carries an acoustic signal input to the speaker 110. The microphone cable 132 is a signal path that carries an acoustic signal output from the sound collection unit 50. The other ends of the speaker cable 131 and the microphone cable 132 are connected to another device, such as a PC (Personal Computer) that controls the operation of the audio device 1.

[0106] As shown in FIG. 25, the speaker 110 is formed in a columnar shape with the surface on which the sound emitting portion 111 is provided and the bottom surface 113 at both ends. On the other hand, the speaker case 71 is formed in a cylindrical shape so that the speaker 110 can be housed therein. It is desirable that the outer diameter of the speaker 110 and the inner diameter of the speaker case 71 are the same or approximately the same. In that case, as shown in FIG. 26 and FIG. 27, when the speaker 110 is housed in the speaker case 71, the side surface 112 of the speaker 110 and the side wall 75 of the speaker case 71 come into contact with each other. As a result, the speaker 110 can be locked to the speaker case 71 by friction between the side surface 112 of the speaker 110 and the side wall 75 of the speaker case 71.

[0107] 26, a protrusion 77 that protrudes inwardly of the speaker case 71 is provided on the bottom wall 76 of the speaker case 71. Therefore, the speaker case 71 can house the speaker 110 with the bottom surface 113 of the speaker 110 spaced apart from the bottom wall 76 of the speaker case 71. With this configuration, it is possible to ensure a space 78a on the bottom surface 113 side of the speaker 110 for connecting the speaker cable 131.

[0108] As shown in Fig. 27, a groove 73 is provided in a side wall 75 of the speaker case 71. When the speaker 110 is housed in the speaker case 71, a gap 78b is formed in the groove 73 between the side wall 75 of the speaker case 71 and the side surface 112 of the speaker 110. This gap 78b on the side of the side surface 112 of the speaker 110 communicates between the opening 72 and a space 78a on the side of the bottom surface 113 of the speaker 110. Then, as shown in Fig. 25, the speaker cable 131 is connected to the bottom surface 113 of the speaker 110 through the gap 78b on the side of the side surface 112 of the speaker 110. In other words, the speaker cable 131 connected to the speaker 110 in the space 78a on the bottom surface 113 side of the speaker 110 passes through the gap 78b on the side surface 112 side of the speaker 110, and is drawn out from the sound emitting part 111 side of the speaker 110, that is, from the opening 72. With this configuration, the speaker cable 131 is supported by being sandwiched between the speaker case 71 and the speaker 110, and the movement of the speaker cable 131 can be restricted. As a result, it is possible to prevent the speaker cable 131 from being broken and the speaker 110 from being displaced. Furthermore, it is possible to prevent the movement of the speaker cable 131 from interfering with binaural recording and binaural playback.

[0109] As shown in FIG. 25, the first frame 20 is provided with a first through hole 25. The speaker cable 131 is arranged through the first through hole 25. With this configuration, the speaker cable 131 is supported by the first through hole 25 and the movement of the speaker cable 131 can be restricted. As a result, it is possible to prevent the speaker cable 131 from being broken and the speaker 110 from being displaced. Furthermore, it is possible to prevent the movement of the speaker cable 131 from interfering with binaural recording and binaural playback. Furthermore, as a result of restricting the movement of the speaker cable 131, it is possible to suppress the generation of touch noise. Touch noise is noise that occurs when friction occurs when the cable comes into contact with the body or clothing. In FIG. 25, the first through hole 25 is provided between the second frame 30 and the insertion section 10 and near the support member 79a, but the position of the first through hole 25 is arbitrary.

[0110] As shown in FIG. 25, the first frame 20 is provided with a second through hole 26. The microphone cable 132 is arranged through the second through hole 26. With this configuration, the microphone cable 132 is supported by the second through hole 26 and the movement of the microphone cable 132 can be restricted. As a result, it is possible to prevent the microphone cable 132 from being broken and the position of the sound pickup unit 50 from being displaced. Furthermore, it is possible to prevent the binaural recording and binaural playback from being disturbed by the movement of the microphone cable 132. Furthermore, as a result of restricting the movement of the microphone cable 132, it is possible to suppress the occurrence of touch noise. In FIG. 25, the second through hole 26 is provided between the second frame 30 and the insertion unit 10 and near the support member 79a, but the position of the second through hole 26 is arbitrary.

[0111] 25, it is preferable that the first through hole 25 and the second through hole 26 are provided in a short distance from each other. Alternatively, a single through hole serving as both the first through hole 25 and the second through hole 26 may be provided in the first frame 20. With this configuration, the speaker cable 131 and the microphone cable 132 can be easily routed.

[0112] <4. Supplementary Information> Although the preferred embodiment of the present disclosure has been described in detail above with reference to the accompanying drawings, the present disclosure is not limited to such examples. It is clear that a person having ordinary knowledge in the technical field to which the present disclosure belongs can conceive of various modified or amended examples within the scope of the technical ideas described in the claims, and it is understood that these also naturally belong to the technical scope of the present disclosure.

[0113] In the above first and second embodiments, an example in which the insertion section 10 has the through hole 11 has been described, but the present disclosure is not limited to such an example. For example, the tip side opening 11a may be blocked. Even in this case, binaural recording with at least reduced wind noise is possible.

[0114] In the above first embodiment, an example in which the acoustic device 1 has the first frame 20, the second frame 30, and the third frame 40 has been described, but the present disclosure is not limited to such an example. The acoustic device 1 may not have the second frame 30, and may not have the third frame 40. Furthermore, the acoustic device 1 may not have the first frame 20, the second frame 30, and the third frame 40. In the second embodiment, an example in which the acoustic device 1 has the second frame 30 and does not have the third frame 40 has been described, but the present disclosure is not limited to such an example. The acoustic device 1 may not have the second frame 30, and may have the third frame 40.

[0115] In the above first and second embodiments, an example has been described in which the acoustic device 1 has the insertion unit 10, but the present disclosure is not limited to such an example. The acoustic device 1 only needs to have the sound collection unit 50 and a member that holds the sound collection unit 50 at the position and angle described in the above first embodiment, and the holding mechanism is not limited to the insertion unit 10. For example, the acoustic device 1 may have an arm-shaped member that supports the sound collection unit 50 from outside the ear canal 98, instead of the insertion unit 10.

[0116] In the above first embodiment, an example has been described in which the sound pickup unit 50 is disposed at a position on the insertion unit 10 farther from the user's eardrum when the acoustic device 1 is worn by the user, but the present disclosure is not limited to such an example. For example, in the first and second embodiments, the sound pickup unit 50 may be disposed at a position on the insertion unit 10 closer to the user's eardrum when the acoustic device 1 is worn by the user. Specifically, the sound pickup unit 50 may be disposed on a side of the through-hole 11 of the insertion unit 10 closer to the tip-side opening 11a. With such a configuration, it is possible to record sound at a position closer to the eardrum. [Explanation of symbols]

[0117] 1 Sound equipment 10 Insertion part (10a: inner surface, 10b: outer surface, 10b-1: contact area, 10b-2: non-contact area) 11 Through hole (11a: distal opening, 11b: distal opening) 20 first frame (20a: inner surface, 20b: outer surface) 21 Hollow part 22 Cutout 23 4th Frame 24 Support 25 First through hole 26 Second through hole 30 2nd Frame 31 1st columnar body 32 Second columnar body 33 Third columnar body 34 Tip 40 3rd Frame 50 Sound pickup section 51 Vibration part (51a: Vibration direction) 52 sound hole 60 Filters 70 5th Frame 71 Speaker case 72 Aperture 73 Groove 74(74a, 74b) Claw part 75 side wall 76 Bottom Wall 77 Protrusion 78a Space on the bottom side of the speaker 78b Gap on the side of the speaker 79 (79a, 79b) Support member 90 Pinna 91 Concha boat 92 Concha cavity 93 Helical foot 94 Antihelix 95 Antihelical crus 96 Earrings 97 Earlobes 98 External auditory canal (98a: inner wall) 100 Headphones 110 Speaker 120 frames 131 Speaker cable 132 Microphone Cable

Claims

1. 1. A user-wearable audio device, comprising: an insertion portion at least a part of which is inserted into an ear canal of the user when the acoustic device is worn by the user; A microphone disposed in the insertion portion; Equipped with the microphone is disposed at a position where, when the acoustic device is worn by the user, at least a part of a vibration part of the microphone is included inside the ear canal of the user, and at an angle where a vibration direction of the vibration part faces an inner wall of the ear canal and is perpendicular or substantially perpendicular to the inner wall of the ear canal; The insertion portion is configured as a cylindrical body having a through hole penetrating in the insertion direction, the microphone is disposed inside the through hole with a gap provided between the microphone and an inner surface of the insertion portion, The through hole has an opening on the opposite side to the insertion direction. sound equipment.

2. The outer surface of the insertion portion has a contact area that contacts an inner wall of the ear canal when the insertion portion is inserted into the ear canal, and a non-contact area that is separated from the inner wall of the ear canal.

2. An acoustic device according to claim 1.

3. the microphone is disposed at a position of the insertion section farther from the eardrum of the user when the acoustic device is worn by the user; 2. An acoustic device according to claim 1.

4. the acoustic device includes a first frame that is disposed in a cavity of the concha of the user when the acoustic device is worn by the user, The first frame is connected to the insertion portion.

2. An acoustic device according to claim 1.

5. The first frame is configured in a ring shape, When the acoustic device is worn by the user, an outer surface of the first frame abuts against the cavity of the concha.

5. An acoustic device according to claim 4.

6. The first frame is configured to have a non-uniform thickness.

6. An acoustic device according to claim 5.

7. The acoustic device includes a fourth frame that closes at least a portion of the ring-shaped hollow portion of the first frame.

6. An acoustic device according to claim 5.

8. The first frame is configured in an arc shape, When the acoustic device is worn by the user, an outer surface of the first frame abuts against the cavity of the concha.

5. An acoustic device according to claim 4.

9. the acoustic device includes a filter for attenuating wind; The filter is disposed in at least one of the first frame or the insertion portion.

5. An acoustic device according to claim 4.

10. A speaker is disposed in contact with the first frame.

5. An acoustic device according to claim 4.

11. the acoustic device includes a second frame that abuts against the concha of the user when the acoustic device is worn by the user, the second frame is connected to the first frame; 5. An acoustic device according to claim 4.

12. the acoustic device includes a third frame that curves from a front surface of the user's auricle to a rear surface of the auricle when the acoustic device is worn by the user, the third frame passing outside the user's helical crus, the third frame is connected to the first frame; An acoustic device according to any one of claims 4 to 11.

13. The first frame is configured such that a thickness of a portion connected to the insertion portion, the second frame, or the third frame is greater than a thickness of other portions.

13. An acoustic device according to claim 12 which recites claim 11.

14. The acoustic device comprises: A speaker and A plurality of support members for supporting the speaker; a frame that comes into contact with an ear of the user when the audio device is worn by the user; Equipped with The plurality of support members are connected to the frame in a spaced apart state.

2. An acoustic device according to claim 1.

15. The audio device includes a speaker. The speaker is disposed in a state in which a sound emitting portion of the speaker faces an opening of the through hole provided in the insertion portion on an opposite side in the insertion direction.

2. An acoustic device according to claim 1.

16. The audio device includes a speaker. the speaker is disposed in a position and orientation that does not interfere with the user's tragus when the audio device is worn by the user; 2. An acoustic device according to claim 1.

17. The acoustic device is A speaker and a frame that comes into contact with an ear of the user when the audio device is worn by the user; a housing portion for housing the speaker; A support member connected to the frame and supporting the storage portion; Equipped with the housing portion has an opening and houses the speaker with a sound emitting portion of the speaker exposed from the opening; a speaker cable connecting the speaker to another device passes through a through hole provided in the frame, passes through a gap between the speaker and the housing portion that communicates with the opening and a space on the bottom side of the speaker, and is connected to the bottom surface of the speaker; 2. An acoustic device according to claim 1.

18. The through hole has an opening in the insertion direction.

2. An acoustic device according to claim 1.

Images