CN211063758U

CN211063758U - Adjustable sound collection device and hearing aid equipment applying same

Info

Publication number: CN211063758U
Application number: CN202020138975.1U
Authority: CN
Inventors: 文卫平; 蓝天翔; 姜鸿彦; 赵非; 李华伟
Original assignee: Foshan Bozhi Medical Technology Co ltd
Current assignee: Foshan Bozhi Medical Technology Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-07-21
Anticipated expiration: 2030-01-21

Abstract

The utility model discloses a sound collection system with adjustable, including shell, microphone array assembly, connector and adapter, microphone array assembly installs in the shell, and the shell is connected with the connector, and microphone array assembly includes two microphones at least, and the signal line and the connector of microphone are connected, have seted up the mounting groove on the adapter, and the connector cooperatees with the mounting groove, sets up the income sound hole that corresponds with the microphone on the shell, and the income sound hole is connected with the microphone. Also discloses hearing-aid equipment, which comprises the sound acquisition device and an earphone, wherein the earphone is connected with the sound acquisition device. The sound collection device can enable the microphone array component to effectively identify and collect effective sound sources in the surrounding environment in a manual or electric mode, is small and secret, and can be installed in various devices needing to pick up sound sources, such as hearing aids, sound systems, speech systems and the like.

Description

Adjustable sound collection device and hearing aid equipment applying same

Technical Field

The utility model relates to a audiphone equipment field, in particular to sound collection system and use its audiphone equipment with adjustable.

Background

Generally, sound signals collected by sound pick-up devices (microphones) are processed and utilized, such as hearing aid products, singing sound systems, conference speech systems, and the like, in some products, in order to improve the sound source direction identification capability, a microphone matrix is added, and sound signal identification is performed by a plurality of microphones in different positions, however, in scenes with noisy or many environmental sound sources, such as banquet halls, conference discussions, shopping malls, and the like, the sound signals in all directions are basically consistent, the sound signal identification capability of the sound pick-up devices is limited, the directivity of the microphone matrix is weakened (the capability of exploring the sound source is limited), the quality of the collected sound signals is poor, and subsequent processing is not good.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sound collection system with adjustable, the device can make the effective sound source among matrix microphone high-efficient discernment and the collection surrounding environment through manual or electronic form, and the device is small and exquisite secret, can install in the equipment that needs pick up the sound source such as multiple audiphone, sound system, speech system, still provides a hearing aid equipment who has used this sound collection system, can solve one of above-mentioned problem at least.

In order to achieve the above object, according to the utility model discloses an aspect provides a sound collection system with adjustable, including shell, microphone array component, connector and adapter, microphone array component installs in the shell, and the shell is connected with the connector, and microphone array component includes two microphones at least, and the signal line and the connector of microphone are connected, have seted up the mounting groove on the adapter, and the connector cooperatees with the mounting groove, sets up the sound inlet that corresponds with the microphone on the shell, and the sound inlet is connected with the microphone.

Therefore, the signal wire of each microphone is welded to a connector, the connector is equivalent to a plug, when in use, the connector is inserted into the mounting groove of the adapter (equivalent to a socket) corresponding to the connector, and the adapter is in communication or electrical connection with other signal processing systems (such as a DSP chip), a power supply and the like. When the sound source device is used, the shell can be manually rotated, so that the sound inlet hole faces to the required sound source direction; the driving piece can be arranged to drive the adapter to drive the whole device to rotate, so that electric adjustment is realized. The device can make the microphone array component efficiently identify and collect effective sound sources in the surrounding environment in a manual or electric mode, is small and secret, and can be installed in various devices needing to pick up sound sources, such as hearing aids, sound systems, speech systems and the like.

The utility model discloses a sound collection system's effect: firstly, a method capable of electrically and manually adjusting the pointing direction of a microphone is provided, the recognition capability of the microphone in the designated direction is improved, and the limitation of a fixed microphone is reduced; secondly, the sound collection device can be used in combination with wearable equipment (such as earphones, box-type hearing aids and the like). When the sound collection device is used in combination with a box-type hearing aid, the body can be used to shield or block the sound at the rear side of the body and adjust the microphone to point to the front of the body, so that the communication between the user and the face-to-face personnel can be improved, and the interference of the sound at the rear side can be reduced. On the other hand, since the ear-hang type hearing aid or the ear canal type hearing aid cannot use the body as a sound barrier and cannot adjust the microphone direction, the hearing aid is not always an expensive short plate of the hearing aid in a noisy environment or an environment with many people. The box-type hearing aid utilizes the sound collection device, not only solves the short plate of the prior hearing aid, but also can be popularized and used due to the low price (only one tenth of the price of the prior hearing aid) and convenient use of the box-type hearing aid, fashionable appearance design and the collocation of fashionable earphone products, thereby improving the hearing protection and the recovery popularization rate and reducing the incidence rate of hearing loss and hearing disability.

In some embodiments, the adjustable sound collection device further comprises a turntable fixedly mounted at the bottom of the adapter, and a driving member in power connection with the turntable for driving the turntable to rotate. Therefore, the utility model discloses an adapter can be connected with driving pieces such as micro motor, and the rotation through the motor drives the rotation of adapter, finally drives the shell and rotates, realizes the directional electrical control to the microphone.

In some embodiments, the adjustable sound collection device further comprises a fastener, one end of the fastener is fixedly mounted on the inner wall of the mounting groove, and the other end of the fastener is matched with the outer wall of the connector. Therefore, in order to enable the connector to be in stable contact with the adapter in the process of rotating for multiple times, the fastener is additionally arranged on the inner wall of the mounting groove, and the connector and the adapter can be kept in stable contact through the fastening effect of the fastener.

In some embodiments, the fastener is a plurality of fasteners, and the fastener is a metal dome. Therefore, the fastening pieces are U-shaped or V-shaped metal elastic pieces and are multiple, the fastening effect is good, and the fastening pieces can be contracted.

In some embodiments, the sound inlet holes are multiple, the multiple sound inlet holes are distributed in a central circumferential array of the shell, the microphone array assembly comprises multiple microphones and multiple simulated auditory canals, the number of the microphones and the number of the simulated auditory canals are the same as the number of the sound inlet holes, the microphones are connected with the DSP chip, one ends of the simulated auditory canals are connected with the sound inlet holes, and the other ends of the simulated auditory canals are connected with the microphones. Therefore, the arrangement of the sound inlet holes, the microphones and the simulated auditory canals is beneficial to the collection and comparison of the sound collection device on each azimuth sound, and is beneficial to speech enhancement and noise reduction. The purpose of setting up emulation canal is the physiological structure of emulation human real ear external auditory canal as far as possible, and better obtaining detailed information, simultaneously because emulation canal sets up in the front end of microphone, external sound can be earlier through this section emulation canal after leading into from the sound inlet hole, reachs the microphone again. Therefore, the sound signals finally heard by the hearing-impaired people wearing the hearing aid have more complete detailed information as the sound signals directly transmitted from the real ears.

In some embodiments, the simulated ear canal is curved and the width of the simulated ear canal tapers inwardly from the sound entry aperture. Thus, the structure of the simulated ear canal facilitates the acquisition and amplification of sound signals.

In some embodiments, the plurality of simulated ear canals are each obliquely disposed and distributed in a central circumferential array of the housing. Thus, the simulated ear canal is obliquely disposed and distributed in a central circumferential array of the shell is a space-saving design.

According to the utility model discloses an aspect still provides a hearing aid equipment, including foretell adjustable sound collection system, still include the earphone, the earphone is connected with sound collection system, and sound collection system still includes DSP chip and controller, and the DSP chip is installed in the controller, and the controller is installed in the inside of adapter, and the microphone passes through the connector to be connected with the DSP chip, and DSP chip and controller electric connection, earphone and controller are connected.

Therefore, the microphone array component collects external sound signals through the sound inlet holes in the shell and converts the external sound signals into electric signals; the DSP chip is used for processing signals transmitted by the microphone array component; the controller is used for controlling the DSP chip and carrying out microphone directivity switching, mode conversion and the like.

Because the device is provided with a plurality of microphone array components, external sound can be excellently collected and subjected to detail processing, and processed sound signals are transmitted into ears through loudspeakers in the earphones, so that a better and more real listening effect is achieved. Even if the stereo-audio-visual device is used in a complex scene, a user can obviously and clearly listen to speech sounds from all directions, and the stereo-visual-audio-visual.

In some embodiments, the sound collection device further includes a bluetooth transmitting module, the bluetooth transmitting module is connected to the DSP chip, a bluetooth receiving module is disposed in the earphone, and the bluetooth receiving module is in communication connection with the bluetooth transmitting module. Therefore, the Bluetooth transmitting module is used for being in Bluetooth connection with the Bluetooth receiving modules on the single side or the two sides of the earphone. The utility model discloses a be connected for the bluetooth between sound collection system and the audiphone, can part the cooperation and use convenient operation.

In some embodiments, the sound collection device further comprises a D/a converter and an amplifier, one end of the D/a converter is connected with the DSP chip, the other end of the D/a converter is connected with the bluetooth transmission module, one end of the amplifier is connected with the D/a converter, and the other end of the amplifier is connected with the bluetooth transmission module. Therefore, the D/A converter is used for converting the digital signal into the analog signal, and the amplifier is used for amplifying the analog signal transmitted by the D/A converter and transmitting the amplified analog signal to the Bluetooth transmitting module.

In some embodiments, the sound collection device further includes a power module and a key module, the power module is connected to the controller, the D/a converter and the bluetooth transmitting module, and is configured to supply power to the controller, the D/a converter and the bluetooth transmitting module, and the key module is disposed on the housing and connected to the controller. Therefore, the arrangement of the key module is convenient for a user to operate, and mode switching is realized, for example, the on-off of the acquisition device is controlled.

In some embodiments, the sound collection device further comprises an indicator light module disposed in the housing and connected to the controller. Thus, the indicator light is used for indicating the use state of the sound collection device, such as: when the indicator light blinks, it indicates that it is working.

In some embodiments, the sound collection device further comprises a power module, and the power module is connected with the controller, the indicator light module, the D/a converter and the bluetooth emission module and is used for supplying power to each component.

The utility model has the advantages that:

the device can make the microphone array component efficiently identify and collect effective sound sources in the surrounding environment in a manual or electric mode, is small and secret, and can be installed in various devices needing to pick up sound sources, such as hearing aids, sound systems, speech systems and the like.

The utility model discloses a hearing aid equipment has used above-mentioned sound collection system, because the device is provided with a plurality of microphone array group spares, can collect and detail processing outside sound fabulous, and sound signal after the processing reaches better more real effect of listening in the ear through the loudspeaker in the earphone. Even if the stereo-audio-visual device is used in a complex scene, a user can obviously and clearly listen to speech sounds from all directions, and the stereo-visual-audio-visual.

Drawings

Fig. 1 is a schematic perspective view of an adjustable sound collection device according to embodiment 1;

FIG. 2 is a schematic cross-sectional view of the housing of the adjustable sound collection assembly of FIG. 1;

fig. 3 is a system block diagram of the hearing aid device shown in embodiment 1;

fig. 4 is a system block diagram of the hearing aid device shown in embodiment 2;

fig. 5 is a schematic perspective view of the adjustable sound collection device according to embodiment 3;

FIG. 6 is a schematic cross-sectional view of the housing of the adjustable sound collection assembly of FIG. 5;

fig. 7 is a schematic sectional view showing the structure of the housing of the adjustable sound collection device according to embodiment 4.

Reference numerals in FIGS. 1 to 7: 1-an earphone; 2-a sound collection device; 11-a bluetooth receiving module; 20-a connector; 21-a controller; 22-a microphone array assembly; 23-a DSP chip; 24-a housing; 25-a bluetooth transmitting module; 26-D/A converter; 27-an amplifier; 28-a power module; 29-an adapter; 210-a turntable; 211-a drive member; 212-a fastener; 221-a microphone; 222-simulated ear canal; 241-sound inlet holes; 242-key module; 243-indicator light module; 244-display screen; 291-mounting groove; 292-the joint.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

FIGS. 1-2 schematically illustrate an embodiment of an adjustable sound collection device.

As shown in fig. 1 to 2, the sound collection device 2 includes a housing 24, a microphone array assembly 22, a connector 20, and an adapter 29. The microphone array assembly 22 is mounted within a housing 24, and the housing 24 is connected to the connector 20. The microphone array assembly 22 includes at least two microphones 221, and the signal lines of each microphone 221 are soldered to the connector 20. The adapter 29 is provided with a mounting groove 291, and the connector 20 is matched with the mounting groove 291. The casing 24 is provided with a sound inlet 241 corresponding to the microphone 221, and the sound inlet 241 is connected to the microphone 221. The upper end of the connector 20 of the present embodiment and the housing 24 may be connected to form an integral structure by sleeving, bonding or welding, and the lower end of the connector 20 may be matched with the mounting groove 291 of the adapter 29, and may be detachably connected, for example, the lower end of the connector 20 is in a truncated cone shape, the mounting groove 291 is in a truncated cone groove matched with the mounting groove 291, and the connector 20 may be inserted into the mounting groove 291 to communicate the connector 20 and the adapter 29.

Thus, the signal wires of the microphones 221 are soldered to the connector 20, the connector 20 is equivalent to a "plug", and when in use, the connector 20 is inserted into the mounting groove 291 of the corresponding adapter 29 (corresponding to a "socket"), and the adapter 29 is in communication with or electrically connected to other signal processing systems (such as the DSP chip 23), a power supply, and the like. When in use, the shell 24 can be manually rotated to enable the sound inlet hole 241 to face to the required sound source direction; the driving member 211 may be arranged to drive the adaptor 29 to rotate the whole device, so as to realize electric adjustment. The device can make the microphone array component 22 effectively identify and collect effective sound sources in the surrounding environment in a manual or electric mode, is small and secret, and can be installed in various devices needing to pick up sound sources, such as hearing aids, sound systems, speech systems and the like.

The utility model discloses a sound collection system 2's effect: firstly, a method capable of electrically and manually adjusting the pointing direction of the microphone 221 is provided, the identification capability of the designated direction of the microphone 221 is improved, and the limitation of the fixed microphone 221 is reduced; secondly, such a sound collection device 2 may be used in conjunction with a wearable device (e.g. an earpiece 1, a box hearing aid, etc.). When the sound collection device 2 is used in combination with a box-type hearing aid, the body can be used to shield or block the sound from the rear side of the body and adjust the microphone 221 to point to the front of the body, which can improve the communication between the user and the face-to-face person and reduce the interference of the sound from the rear side. On the other hand, since the ear-hang type hearing aid or the ear canal type hearing aid cannot use the body as a sound barrier and cannot adjust the orientation of the microphone 221, the hearing aid is not always an expensive short plate of the hearing aid in a noisy environment or an environment with many people. The box-type hearing aid utilizes the 2 devices of the sound collection device, not only solves the short board of the current hearing aid, but also can be popularized and used due to the low price (only one tenth of the price of the current hearing aid) and the convenient use of the box-type hearing aid, fashionable appearance design and the matching with 1 product of the fashion earphone, thereby improving the hearing protection and the recovery popularization rate and reducing the incidence rate of hearing loss and hearing disability.

The adjustable sound collection device 2 of this embodiment further includes a fastener 212. One end of the fastening member 212 is fixedly mounted to the inner wall of the mounting groove 291 by a screw or an adhesive, and the other end is engaged with the outer wall of the connector 20. Therefore, in order to make the connector 20 and the adapter 29 stably contact with each other in the process of multiple rotations, the fastener 212 is additionally arranged on the inner wall of the mounting groove 291, and the contact between the connector and the adapter can be stably maintained by the fastening action of the fastener 212.

The number of the fasteners 212 is plural in this embodiment, and the fasteners 212 are metal elastic pieces. Therefore, the fastening pieces 212 are a plurality of U-shaped or V-shaped metal elastic pieces, have good fastening effect and can be contracted.

As shown in fig. 2, the sound inlet holes 241 are plural, and the plural sound inlet holes 241 are distributed in a central circumferential array of the housing 24. The microphone array assembly 22 includes a plurality of microphones 221 and a plurality of simulated ear canals 222. The number of microphones 221 and the number of simulated auditory canals 222 are the same as the number of sound inlet holes 241. The number of sound inlet holes 241, the microphone 221, and the artificial auditory canal 222 in the present embodiment is 4. The signal line of each microphone 221 is soldered to the connector 20, and one end of the artificial ear canal 222 is connected to the sound inlet hole 241 and the other end is connected to the microphone 221. The microphone 221 is fixed to the edge of the artificial ear canal 222 by adhesion without a gap in the middle. The arrangement of the sound inlet holes 241, the microphones 221 and the simulated auditory canals 222 is beneficial to the collection and comparison of each azimuth sound by the sound collection device 2, and is beneficial to speech enhancement and noise reduction.

The outer shape of the housing 24, the connector 20 and the adapter 29 may be cylindrical.

As shown in fig. 2, the artificial ear canal 222 of the present embodiment has a curved shape and the width of the artificial ear canal 222 gradually narrows from the sound inlet hole 241 inward. Therefore, the simulated auditory canal 222 adopts a funnel-shaped structure with a wide front part and a narrow back part which are slightly turned, so as to simulate the physiological structure of the external auditory canal of the real ear as much as possible, and be beneficial to the collection and amplification of sound signals. The simulated ear canal 222 is a structure that mimics the external auditory canal of a human ear and is 23 mm in length (the external auditory canal of a normal human ear is about 21-25 mm in length). The plurality of simulated ear canals 222 are each disposed in an inclined arrangement and are distributed in a central circumferential array of the shell 24. Thus, the angled placement of the simulated ear canal 222 and the distribution in the central circumferential array of the shell 24 is a space-saving design. The simulated ear canal 222 of the present embodiment may be made of a plastic elastic material such as silicone. The specific implementation mode can be as follows: the housing 24 is made of a high density sound insulating material, and the inside of the housing 24 is solid, leaving a space according to the shape of the simulated ear canal 222, and then wrapped with a material such as silicone gel.

The simulated auditory canal 222 is arranged to simulate the physiological structure of the external auditory canal of the real ear of a human body as much as possible, so that detailed information can be obtained better, and meanwhile, as the simulated auditory canal 222 is arranged at the front end of the microphone 221, external sound can firstly pass through the simulated auditory canal 222 after being transmitted from the sound inlet 241 and then reach the microphone 221. Therefore, the sound signals finally heard by the hearing-impaired people wearing the hearing-aid equipment have more complete detail information as the sound signals directly transmitted from the real ears.

Fig. 3 schematically illustrates an embodiment of a hearing assistance device.

As shown in fig. 3, the hearing aid device comprises the adjustable sound collection device 2 and also comprises an earphone 1, wherein the earphone 1 is connected with the sound collection device 2.

The sound collection device 2 of the present embodiment further includes a DSP chip 23, a controller 21, a D/a converter 26, and an amplifier 27. The DSP chip 23 is installed in the controller 21, the controller 21 is installed in the adaptor 29, the microphone 221 is connected to the DSP chip 23 through the connector 20, the DSP chip 23 is electrically connected to the controller 21, and the earphone 1 is connected to the controller 21. The sound signal input end of the microphone 221 is connected to the sound inlet 241, and the electrical signal output end is connected to the DSP chip 23 through the connector 20 and the adapter 29 in sequence. The DSP chip 23 is communicatively connected to the controller 21. The housing 24 is formed with an earphone 1 insertion hole, and the earphone 1 is electrically connected to the controller 21 through the insertion hole and a wire. The D/a converter 26 is connected to the DSP chip 23, and the amplifier 27 is connected to the D/a converter 26.

The microphone array component 22 collects external sound signals through the sound inlet holes 241 on the shell 24 and converts the external sound signals into electric signals;

the DSP chip 23 is used to process the signals transmitted by the microphone array component 22; the DSP chip 23 of the present embodiment is a PCM4204 chip of TI corporation. Can be mounted on a circuit board such as a PCB board through integration.

The controller 21 controls the DSP chip 23 to perform directivity switching, mode switching, and the like of the microphone 221. The controller 21 of the present embodiment is an MCU (micro controller unit).

The D/a converter 26 is used for converting the digital signal transferred by the DSP chip 23 into an analog signal.

The amplifier 27 is used for amplifying the analog signal transmitted from the D/a converter 26.

The hearing aid device of the present invention employs the sound collection device 2, and the microphone array assembly 22 collects external sound signals through the sound inlet 241 on the housing 24 and converts the signals into electric signals; the DSP chip 23 is used to process the signals transmitted by the microphone array component 22; the controller 21 controls the DSP chip 23 to perform directivity switching, mode switching, and the like of the microphone 221. Because the device is provided with a plurality of microphone array components 22, external sound can be excellently collected and processed in detail, and processed sound signals are transmitted into the ears through the loudspeakers in the earphone 1, so that better and more real listening effect is achieved. Even if the stereo-audio-visual device is used in a complex scene, a user can obviously and clearly listen to speech sounds from all directions, and the stereo-visual-audio-visual.

The controller 21, the DSP chip 23, the D/a converter 26, the amplifier 27, and the like of the present embodiment are all commonly used commercially available products.

In this embodiment, the controller 21, the DSP chip 23, the D/a converter 26, the amplifier 27, and other components may be integrated on a circuit board, and then the circuit board is installed in the adapter 29, an interface connected to the connector 20 is disposed at the bottom of the installation groove 291, and the connector 20 is electrically connected to the DSP chip 23 on the circuit board through the interface.

The sound collection device 2 further includes an indicator light module 243, and the indicator light module 243 is disposed on the housing 24 and connected to the controller 21. Thus, the indicator light is used to indicate the use state of the sound collection device 2, such as: when the indicator light blinks, it indicates that it is working.

The sound collection device 2 further includes a power module 28, and the power module 28 is connected to the controller 21, the indicator light module 243, and the D/a converter 26, and is configured to supply power to each component.

The sound collection device 2 further includes a key module 242 and a display 244, and the display 244 and the key module 242 are disposed on the housing 24 and connected to the controller 21. Therefore, the key module 242 is convenient for the user to operate, and implement mode switching, such as controlling a switch of the acquisition device; the display screen 244 is used to display the status, information, etc. of the device.

Example 2

Fig. 4 schematically shows another embodiment of the sound collection device 2 and the hearing aid apparatus using the same.

As shown in fig. 4, the sound collection device 2 and the hearing aid apparatus in the present embodiment have substantially the same structure as that of embodiment 1, and the difference is that: the connection mode between the sound collection device 2 and the earphone 1 in this embodiment is bluetooth connection.

As shown in fig. 4, the sound collection device 2 of the present embodiment further includes a bluetooth transmitting module 25, the bluetooth transmitting module 25 is electrically connected to the amplifier 27, and the bluetooth transmitting module 25 is connected to the power module 28. A bluetooth receiving module 11 is arranged in the earphone 1, and the bluetooth receiving module 11 is in communication connection with a bluetooth transmitting module 25. The bluetooth receiving module 11 and the bluetooth transmitting module 25 of the present embodiment are all common commercially available products; the bluetooth transmitting module 25 may be integrated on the same circuit board together with the controller 21, and the bluetooth receiving module 11 may be integrated on the control circuit board of the headset 1.

The sound collection device 2 of the embodiment is connected with the earphone 1 through the Bluetooth, and can be used in a separated and matched mode, so that the operation is convenient.

Example 3

Fig. 5 to 6 schematically show another embodiment of the sound collection device 2 and the hearing aid apparatus using the same.

As shown in fig. 5 to 6, the structure of the sound collection device 2 in the present embodiment is basically the same as that of embodiment 1, and the differences are: (1) the sound collection device 2 of the present embodiment further includes a driving member 211 and a dial 210. That is, in the embodiment 1, the direction of the sound inlet 241 is manually adjusted, and in the embodiment, the direction of the sound inlet 241 is electrically adjusted; (2) the number of sound inlet holes 241 in this embodiment is 2, and the number of microphones 221 and simulated auditory canals 222 is also 2.

As shown in fig. 5, the sound collection device 2 of the present embodiment further includes a turntable 210 and a driving member 211. The rotary disc 210 is fixedly mounted at the bottom of the adaptor 29 by screws or the like, and the driving member 211 is in power connection with the rotary disc 210 and is used for driving the rotary disc 210 to rotate. The driving member 211 of the present embodiment may be a commercially available micro motor, and the turntable 210 is sleeved on the driving end of the driving member 211. Therefore, the utility model discloses an adapter 29 can be connected with driving piece 211 such as micro motor, and the rotation through the motor drives adapter 29's rotation, finally drives shell 24 and rotates, realizes the directional electrical control to microphone 221.

As shown in fig. 6, the sound inlet holes 241 of the present embodiment are located on the circumference of the housing 24 at the same height. The number of sound inlet holes 241 in the present embodiment is 2, and the number of microphones 221 and simulated auditory canals 222 is also 2.

Example 4

Fig. 7 schematically shows another embodiment of the sound collection device 2 and the hearing aid apparatus using the same.

As shown in fig. 7, the structure of the sound collection device 2 in the present embodiment is substantially the same as that of embodiment 3, except that: the number of sound inlet holes 241 in this embodiment is 8, and the number of microphones 221 and simulated auditory canals 222 is also 8.

As shown in fig. 7, the sound inlet holes 241 of the present embodiment are located on the circumference of the housing 24 at the same height. The number of sound inlet holes 241 in the present embodiment is 8, and the number of microphones 221 and simulated auditory canals 222 is also 8.

Therefore, the number of the sound inlet 241, the microphone 221 and the simulated auditory canal 222 of the present invention can be set according to actual needs, and the applicability is strong.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Adjustable sound collection system, its characterized in that includes shell (24), microphone array subassembly (22), connector (20) and adapter (29), microphone array subassembly (22) are installed in shell (24), shell (24) are connected with connector (20), microphone array subassembly (22) include two microphones (221) at least, the signal line and the connector (20) of microphone (221) are connected, adapter (29) are last to have seted up mounting groove (291), connector (20) cooperate with mounting groove (291), shell (24) are last to have seted up sound inlet hole (241) that correspond with microphone (221), sound inlet hole (241) are connected with microphone (221).

2. The adjustable sound collection device of claim 1, further comprising a turntable (210) and a driving member (211), wherein the turntable (210) is fixedly mounted at the bottom of the adaptor (29), and the driving member (211) is in power connection with the turntable (210) for driving the turntable (210) to rotate.

3. The adjustable sound collection device of claim 1, further comprising a fastener (212), wherein one end of the fastener (212) is fixedly mounted to an inner wall of the mounting groove (291), and the other end of the fastener is engaged with an outer wall of the connector (20).

4. The adjustable sound collection device of claim 3, wherein the plurality of fasteners (212) are provided, and wherein the fasteners (212) are metal clips.

5. The adjustable sound collecting device as claimed in claim 1, wherein the sound inlet holes (241) are plural, a plurality of the sound inlet holes (241) are distributed in a central circumferential array of the housing (24), the microphone array assembly (22) comprises a plurality of microphones (221) and a plurality of simulated auditory canals (222), the number of the microphones (221) and the simulated auditory canals (222) is the same as the number of the sound inlet holes (241), the microphones (221) are connected with the DSP chip (23), one end of the simulated auditory canals (222) is connected with the sound inlet holes (241), and the other end is connected with the microphones (221).

6. The adjustable sound collection device of claim 5, wherein the simulated ear canal (222) is curved and the width of the simulated ear canal (222) tapers inwardly from the sound entrance aperture (241).

7. Hearing aid equipment, including sound collection system (2) of any one of claims 1 ~ 6, characterized in that still includes earphone (1), earphone (1) is connected with sound collection system (2), sound collection system (2) still includes DSP chip (23) and controller (21), DSP chip (23) are installed in controller (21), the inside in adapter (29) is installed in controller (21), microphone (221) are connected with DSP chip (23) through connector (20), DSP chip (23) and controller (21) electric connection, earphone (1) is connected with controller (21).

8. The hearing aid device according to claim 7, wherein the sound collection device (2) further comprises a Bluetooth transmitting module (25), the Bluetooth transmitting module (25) is connected with the DSP chip (23), a Bluetooth receiving module (11) is arranged in the earphone (1), and the Bluetooth receiving module (11) is in communication connection with the Bluetooth transmitting module (25).

9. The hearing aid device according to claim 8, wherein the sound collection device (2) further comprises a D/a converter (26) and an amplifier (27), wherein one end of the D/a converter (26) is connected to the DSP chip (23) and the other end is connected to the bluetooth transmission module (25), and wherein one end of the amplifier (27) is connected to the D/a converter (26) and the other end is connected to the bluetooth transmission module (25).

10. The hearing aid device according to claim 9, wherein the sound collection device (2) further comprises a power module (28) and a button module (242), the power module (28) is connected to the controller (21), the D/a converter (26) and the bluetooth transmission module (25) for supplying power to the controller (21), the D/a converter (26) and the bluetooth transmission module (25), and the button module (242) is disposed in the housing (24) and connected to the controller (21).