CN111405401A

CN111405401A - Sound pickup apparatus

Info

Publication number: CN111405401A
Application number: CN202010185957.3A
Authority: CN
Inventors: 魏清; 许长建; 王澄; 樊伟
Original assignee: Shanghai Lishengte Medical Technology Co ltd
Current assignee: Shanghai Lishengte Medical Technology Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-07-10

Abstract

The invention discloses pickup equipment which comprises a transmitting device and a receiving device thereof, wherein the receiving device comprises a microphone module, a voice signal processing module, a first Bluetooth module, a key module and a power supply module thereof, the microphone module comprises a plurality of microphones, the microphones form a microphone array, directional voice is arranged in the voice signal processing module, the key module comprises an on-off key and a first connecting key thereof, the receiving device comprises a second Bluetooth module and pins thereof, and the second Bluetooth module is connected with the first Bluetooth module in a matching way through the first connecting key. This pickup equipment can gather the sound of different spatial directions through setting up microphone array and speech signal processing module, and then carries out omnidirectional processing correction to sound signal, can also make the user obtain the position of pronunciation source, lets pronunciation clearer, more easily discern, has greatly improved user's listening experience.

Description

Sound pickup apparatus

Technical Field

The invention relates to a pickup device, in particular to a pickup device suitable for a hearing aid with a sound boot or a cochlear implant.

Background

The hearing aid is an amplifier, has the functions of increasing the sound energy intensity and transmitting the sound energy into the ear without distortion as much as possible, is an assistant tool used by the hearing-impaired people, and is helpful for the hearing-impaired people to improve the hearing disorder and further improve the conversation and interaction ability with other people. Most of hearing aids in the market at present are smaller devices hung on ears or embedded in ear canals, so that the number of the adopted microphones is single, and the effect is weak in front-end sound collection processing.

The cochlear implant is an implanted electronic hearing device, is a very important listening tool for people with severe or extremely severe hearing loss by electrically stimulating nerves of the inner ear, and needs to be adjusted according to orders and periods of a hearing engineer in the using process so as to achieve the optimal listening effect. Like a hearing aid, the requirement on the shape and size of the device is high, one or 2 microphones are mostly used for front-end sound processing, and the problem of weak front-end sound processing effect also exists.

In addition, the user's feeling is strange due to the problem that a single microphone cannot capture the positioning direction, and even if there are 2 microphones, the two microphones are close to each other due to the limitation of volume and performance, and the positioning direction cannot be captured effectively. Moreover, due to the limited capabilities of the speech processor, very comprehensive processing modifications of the audio signal are not possible.

Meanwhile, many hearing aids or cochlear implants have a sound boot, and a plug-in receiver can be connected with intelligent devices such as a mobile phone and a PDA, but cannot really realize interaction with the mobile phone (the functions of receiving multimedia of the mobile phone and making a call can be simultaneously realized, namely, the mobile phone does not need to be operated).

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a sound pickup apparatus that can make speech more clear and easier to recognize.

In order to achieve the above object, the present invention provides a sound pickup apparatus, which includes a transmitter and a receiver, wherein the receiver includes a microphone module, a voice signal processing module, a first bluetooth module, a key module, and a power module thereof, the microphone module includes a plurality of microphones, the plurality of microphones are arranged according to a certain geometric structure to form a microphone array, the voice signal processing module is internally provided with directional voice, the key module includes an on-off key and a first connection key thereof, the receiver includes a second bluetooth module and pins thereof, and the second bluetooth module is connected with the first bluetooth module in a pairing manner through the first connection key.

The key module also comprises a second connecting key and a telephone answering key thereof. Furthermore, the key module also comprises a plurality of indicator lights.

The microphone module comprises six microphones, and the six microphones are arranged according to six corners of a regular hexagon.

The pickup equipment can collect sounds in different spatial directions by arranging the microphone array and the voice signal processing module, further carry out all-dimensional processing and correction on the sound signals, enable a user to obtain the direction of a voice source, enable the voice to be clearer and easier to identify and greatly improve the listening experience of the user.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

Fig. 1 is a block diagram of a sound pickup apparatus according to the present invention.

Fig. 2 is a schematic flow chart of the operation of the sound pickup apparatus of the present invention.

Detailed Description

The invention is further elucidated with reference to the drawing.

As shown in fig. 1, the present invention provides a sound pickup apparatus, which includes a transmitting device 1 and a receiving device 2 thereof, wherein the transmitting device 1 collects and processes sound, and the receiving device 2 receives and transmits the voice signal processed by the transmitting device 1 to a hearing aid with a sound boot or a cochlear implant.

The receiving device 1 comprises a microphone module 11, a voice signal processing module 12, a first bluetooth module 13, a key module 14, and a power module 15, wherein the microphone module 11 comprises a plurality of microphones, the plurality of microphones are arranged according to a certain geometric structure (commonly used linear and annular), such as six regular hexagonal corners, to form a microphone array for collecting sounds in different spatial directions, the voice signal processing module 12 performs space-time processing on the sound signals sent by the microphone module 11, to realize functions of noise suppression, reverberation removal, human sound interference suppression, sound source direction finding, sound source tracking, array gain, and the like, so as to improve the voice recognition rate in a real environment, and meanwhile, the noise environment is an important factor affecting voice recognition, and noise in common home and office environments has various types such as reverberation, echo, background noise, human sound interference, and the like, the voice signal processing module 12 utilizes the pickup beam forming to effectively suppress the noise outside the beam, extract the voice signal from the noise-containing voice signal, effectively enhance the voice signal, and the voice signal processing module 12 is internally provided with directional voice to calculate the angle and distance of the target speaker, realize the tracking of the target speaker and the subsequent voice directional pickup, and improve the voice recognition rate and the voice listening effect, the first bluetooth module 13 is used for carrying out signal transmission with the outside, the key module 14 comprises a switch key, a connection key, a telephone answering key and a plurality of indicator lights, the switch key is used for controlling the on and off of the transmitting device 1, the connection key comprises a first connection key and a second connection key, the first connecting key is used for controlling the connection between the first bluetooth module 13 and the receiving device 2, the second connecting key is used for controlling the connection between the first bluetooth module 13 and intelligent devices such as mobile phones and PDAs, the indicator light is respectively matched with different keys for use, different colors can be displayed according to different states, and the power module 15 is used for providing power and can adopt a non-detachable battery or a replaceable battery.

The receiving device 2 comprises a second bluetooth module 21 and a pin 22 thereof, wherein the second bluetooth module 21 is used for being connected with the first bluetooth module 13 in a pairing manner, and the pin 22 is used for being inserted into a sound boot of a hearing aid or a cochlear implant and transmitting a received voice signal to the hearing aid or the cochlear implant.

As shown in fig. 2, in use, first, the transmitting device 1 is placed somewhere on the body of the user, the receiving device 2 is connected to the hearing aid or cochlear implant through the pin 22, then the transmitting device 1 is turned on, the first bluetooth module 13 and the second bluetooth module 21 are connected in pairing manner through the first connecting key, after the pairing is successful, the hearing aid or cochlear implant can receive the voice signal sent by the transmitting device 1, and receive the directional voice sent by the transmitting device 1 in the gap of the silent source, such as the front side, the left side and the like, so that the user can know the source direction of the voice besides obtaining clear voice, thereby improving the use experience.

Meanwhile, the first Bluetooth module 13 is connected with intelligent equipment such as a mobile phone and a PDA through the second connecting key, multimedia sound signals (including a telephone) of the intelligent equipment can be transmitted to a hearing aid or a cochlear implant through the transmitting device 1 and the receiving device 2, when the telephone comes in, the telephone can be directly answered by the hearing aid or the cochlear implant through the telephone answering key, the interaction between the hearing aid or the cochlear implant and the intelligent equipment is improved and enhanced, the use range of the hearing aid or the cochlear implant is expanded, and the use experience is further improved.

It should be noted that, since the existing bluetooth technology can generally support at least ten meters of connection, the transmitting device 1 can be installed at a place far away from the user, such as beside the speaker or lecturer during listening, and at this time, although the directional voice function may be limited, the problems of unclear voice recognition and poor listening effect at the far end of the hearing aid or cochlear prosthesis are solved.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A sound pickup apparatus characterized in that: the receiving device comprises a microphone module, a voice signal processing module, a first Bluetooth module, a key module and a power module, wherein the microphone module comprises a plurality of microphones, the plurality of microphones are arranged according to a certain geometric structure to form a microphone array, the voice signal processing module is internally provided with directional voices, the key module comprises an on-off key and a first connecting key thereof, the receiving device comprises a second Bluetooth module and pins thereof, and the second Bluetooth module is connected with the first Bluetooth module in a pairing mode through the first connecting key.

2. The pickup apparatus as recited in claim 1, wherein: the key module also comprises a second connecting key and a telephone answering key thereof.

3. The pickup apparatus as recited in claim 2, wherein: the key module also comprises a plurality of indicator lights.

4. The pickup apparatus as recited in claim 1, wherein: the microphone module comprises six microphones, and the six microphones are arranged according to six corners of a regular hexagon.