CN101778330B - Mobile phone platform-based array microphone hearing aid and control method thereof - Google Patents
Mobile phone platform-based array microphone hearing aid and control method thereof Download PDFInfo
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Abstract
本发明公布了一种基于手机平台的阵列麦克风助听器及其控制方法，所述手机平台包括手机本体、设置于手机本体内的DSP处理芯片以及由DSP处理芯片分别控制的电源模块、输出模块和通信模块，还包括SIM卡模块和输入模块、微处理器、存储模块、阵列麦克风、蓝牙发送模块、外部接口和远端模块。本发明方法利用麦克风阵列采集到的声音信号经过手机平台内的DSP的处理后获得较高信噪比和言语可懂度的声音信号，这些声音信号通过无线传输的方式送入使用者佩戴在耳内的无线耳机。本发明经济性较高、用户易操控以及不易受干扰。
The invention discloses an array microphone hearing aid based on a mobile phone platform and a control method thereof. The mobile phone platform includes a mobile phone body, a DSP processing chip disposed in the mobile phone body, and a power module, an output module and a communication module respectively controlled by the DSP processing chip. The module also includes a SIM card module and an input module, a microprocessor, a storage module, an array microphone, a Bluetooth sending module, an external interface and a remote module. The method of the present invention uses the sound signals collected by the microphone array to be processed by the DSP in the mobile phone platform to obtain sound signals with higher signal-to-noise ratio and speech intelligibility, and these sound signals are sent to the user's ears through wireless transmission. wireless headphones inside. The invention has high economical efficiency, is easy for users to control and is not easily disturbed.
Description
Technical field
Invention relates to a kind of array microphone hearing aid based on cell phone platform and control method thereof, belongs to the technical field of digital hearing aid device.
Background technology
The composition of digital hearing-aid mainly contains microphone as shown in Figure 1, preamplifier, and frequency overlapped-resistable filter, A/D converter, digital filter, microprocessor, D/A converter, anti-mirror filter and earphone consist of.Microphone is the vitals in the hearing aids, and its effect is to pick up the external sound signal and be converted to the signal of telecommunication.What for a long time, microphone used all is single, omnidirectional microphone.This microphone is merely able to omnidirectional and adopts sound in the hearing aids use procedure, and the sound that namely picks up does not concentrate on certain direction, but all sound in the whole zone are picked up together, comprises not wishing the noise source received.But in actual use, people usually only in these sound sources certain or certain several interested.In order to address this problem, current advanced digital deaf-aid system has adopted the directivity technology based on microphone array.After adopting the directivity technology, the microphone of digital deaf-aid can focus on the collection direction of sound interested certain or certain the several directions of user, as shown in Figure 2.More representational in this series products have: " necklace " formula digital deaf-aid of the Bernard professor Widrow invention of Stanford Univ USA, as shown in Figure 3, and " glasses " formula digital deaf-aid of Dutch Varibel and the joint development of Philips company, as shown in Figure 4.We can find out from top diagram, and these two kinds of digital deaf-aids are owing to the array microphone system that has adopted based on the directivity technology, thereby their noise inhibiting ability is greatly improved.But these two kinds of directional digital hearing aid device systems have respectively limitation separately: " necklace " formula digital deaf-aid requires to adorn oneself with the annular " necklace " of carrying a volume " huge " at collar, owing to be provided with array microphone and DSP treatment system in " necklace ", thus its volume can not do very little; " glasses " formula digital deaf-aid volume is accepted than the easier people of allowing of " necklace " formula, but the hearing aids of this form requires the wearer to possess the custom of wearing spectacles, and giving simultaneously " glasses " charging also is the individual vexatious thing of wearer that allows.
Summary of the invention
The present invention seeks to provides a kind of array microphone hearing aid based on cell phone platform and control method thereof for the defective that prior art exists.
The present invention adopts following technical scheme for achieving the above object:
The present invention is based on the array microphone hearing aid of cell phone platform, described cell phone platform comprises mobile phone body, be arranged at the DSP process chip in the mobile phone body and the power module of being controlled respectively by the DSP process chip, output module and communication module, also comprise SIM card module and input module, it is characterized in that: also comprise microprocessor, memory module, array microphone, the bluetooth sending module, external interface and remote end module, wherein remote end module is made of bluetooth receiver module serial connection earphone, array microphone is distributed on the mobile phone body both sides, array microphone intercoms mutually with the DSP process chip, the bluetooth sending module, external interface, memory module, input module, the SIM card module intercoms mutually with microprocessor respectively, the DSP process chip intercoms mutually with microprocessor, and the bluetooth sending module is in bluetooth receiver module radio communication.
Array microphone hearing aid based on cell phone platform, described cell phone platform comprises mobile phone body, be arranged at the DSP process chip in the mobile phone body and the power module of being controlled respectively by the DSP process chip, output module and communication module, also comprise SIM card module and input module, it is characterized in that: also comprise microprocessor, memory module, array microphone, external interface and remote end module, wherein remote end module is connected in series wireless receiver successively by reception antenna, earphone consists of, array microphone is distributed on the mobile phone body both sides, array microphone intercoms mutually with the DSP process chip, external interface, memory module, input module, the SIM card module intercoms mutually with microprocessor respectively, and the DSP process chip intercoms mutually with microprocessor.
Described array microphone hearing aid based on cell phone platform, it is characterized in that described DSP process chip is connected in series filtration module, signal amplification module and signal enhancement module composition successively by the A/D modular converter, wherein A/D modular converter and the two-way communication of DSP process chip, the input of the output termination bluetooth sending module of signal enhancement module.
Described array microphone hearing aid based on cell phone platform is characterized in that also arranging on the mobile phone body adaptive array pointing system, between described adaptive array pointing system serial connection and array microphone and the DSP process chip.
The control method of described array microphone hearing aid based on cell phone platform is characterized in that described method is as follows:
Array microphone: the voice signal that acquisition has directive property;
Adaptive array pointing system: follow the trail of and analyze the noise source of noise in the voice signal that array microphone obtains, and adjust accordingly the directional mode of array microphone, noise source is foreclosed all the time;
DSP process chip: communicate by letter with communication base station by communication module, and the transmission of sound signals that array microphone is obtained is to microprocessor;
Microprocessor: be sent to remote end module by the bluetooth sending module after successively process filtering of voice signal, amplification and the reinforcement that just array microphone obtains;
Remote end module: adopt the bluetooth receiver module to receive the voice signal that the bluetooth sending module sends, and by the earphone signal that plays sound.
The control method of described array microphone hearing aid based on cell phone platform is characterized in that described method is as follows:
Array microphone: the voice signal that acquisition has directive property;
Adaptive array pointing system: follow the trail of and analyze the noise source of noise in the voice signal that array microphone obtains, and adjust accordingly the directional mode of array microphone, noise source is foreclosed all the time;
DSP process chip: communicate by letter with communication base station by communication module, and the transmission of sound signals that array microphone is obtained is to microprocessor;
Microprocessor: the voice signal that obtains of the array microphone logical DSP process chip that feeds back to through filtering, amplification and after strengthening successively just, DSP process chip successively by behind communication module, reception antenna, the wireless receiver by the earphone signal that plays sound.
The present invention arranges microphone array at mobile phone, realizes the digital hearing aid function at cell phone platform simultaneously.Mobile phone has had the function of wireless communication and digital hearing aid concurrently.Mobile phone finish by wireless communication protocol on the one hand and the base station between radio communication function, to be arranged on the other hand the signal that the microphone on the mobile phone picks up and be sent to wireless headset through processing such as A/D conversion, filtering, de-noising, amplification and reinforcements by wave point, thereby finish the digital hearing aid function.
Second aspect, the treatment system that is provided with microphone array and realizes adaptive direction de-noising function at mobile phone.At first, handset size is enough large, has enough physical spaces for us the microphone array of proper topologies structure to be set, and this microphone array is the physical basis that we realize the directivity noise suppressed; Secondly, we arrange the adaptive array pointing system at the signal processing platform of mobile phone, and changing system can follow the trail of and the analysis noise source according to the residing actual noise environment of user, and adjusts accordingly the directional mode of array, and noise source is foreclosed all the time.
The third aspect, the present invention is provided with wireless headset, and the wireless receiver in this wireless headset receives to come from by wireless channel and is arranged on the voice signal that the wireless transmitter on the mobile phone sends.Because all digital signal processing functions are all finished at cell phone platform, so the structure in the wireless headset is very simple, all formation includes only wireless receiver and earphone.Therefore, this wireless headset can be realized fully In-Ear with lower cost.
Fourth aspect, convenient the controlling of hearing aids is an insoluble problem always.The core DSP processing unit of hearing aids of the present invention is arranged in mobile phone, the signal processing system relevant with hearing-aid function all is arranged in the mobile phone, far-end wireless headset module is only finished the task of receiving the wireless speech signal, so all personalization configurations and user control work and can finish at mobile phone.Because cell phone platform self has just disposed abundant man-machine interface, it is just easier to finish these tasks at mobile phone again.The technical staff can finish personalized configuration service to the user by the data-interface of mobile phone, and the user can finish general simply controlling by keyboard, for example volume control and scene conversion.Further, the user also can finish more complicated the controlling of hearing aids, for example upgrading of software systems and renewal by private subscribers software on PC by Mobile phone data interface.
Description of drawings
Fig. 1 is a typical digital deaf-aid composition frame chart.
Fig. 2 is hearing aids work schematic diagram after the employing directional microphone technology.
Fig. 3 is " necklace " formula digital deaf-aid of the Bernard professor Widrow invention of Stanford Univ USA.
Fig. 4 is that Dutch Varibel and Philips company develop jointly " glasses " formula digital deaf-aid.
Fig. 5 is the array microphone hearing aid schematic diagram based on cell phone platform of the present invention.
Fig. 6 is structure composition frame chart of the present invention.
Fig. 7 is the microprocessor schematic diagram.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to invention:
Fig. 5 shows the array microphone hearing aid based on cell phone platform.Described mobile phone 1 is by keyboard 2 and display screen 3 complete operations.Array microphone 4 is arranged on the mobile phone both sides according to suitable topological structure, finishes the directivity hit detect function to voice signal.The voice signal that picks up via array microphone 4 is admitted to the DSP processing unit in the mobile phone, and the DSP processing unit is finished the core processing function of digital deaf-aid: directivity filtering, amplify the processing such as enhancing.Treated voice signal is admitted to wireless base station apparatus 5, sends to radio communication base station by transmitting antenna 6.
Remote end module 8 is made of bluetooth receiver module serial connection earphone 11.Reception antenna 9 receives the wireless signal that transmitting antenna 6 is sent here by wireless channel, and this signal is admitted to wireless receiver 10, reverts to after treatment analog voice signal.This analog voice signal is admitted to earphone 11, is converted to acoustic signals by earphone 11 and sends into people's ear.More than the wireless receiving module 8 that forms of 3 parts reach In-Ear size class, thereby so that this module can realize pleasant hiding.
Keyboard 2 and display screen 3 on the cell phone platform provide human-computer interaction function for the user when the user receives calls.When mobile phone 1 was realized the digital hearing aid function, keyboard 2 and display screen 3 can be used as again the man-machine interface that the user controls digital deaf-aid, for the user provides functions such as scene switching, gain control.
Data-interface 7 on the cell phone platform can be used as user and technical staff to carry out complexity to mobile phone and controls interface with transfer of data.Simultaneously, when the technical staff joined hearing aids for the user tests, this interface can also be regulated and control as the technical staff interface of hearing aids index.In user's routine use, when the user need to carry out complexity when controlling to hearing aids, when for example carrying out software upgrading and parameter adjustment, this data-interface also can be used as user interface and occurs.
Fig. 6 has provided the structure composition diagram of the more detailed complexity of the array microphone hearing aid based on cell phone platform of the present invention.DSP1 and microprocessor 2 are core control treatment parts of mobile phone, and relevant control and the processing of wireless calling and digital hearing aid are all finished by these two parts.Array microphone hearing aid based on cell phone platform, described cell phone platform comprises mobile phone body 1, be arranged at the DSP process chip in the mobile phone body 1 and the power module of being controlled respectively by the DSP process chip, output module and communication module 5, also comprise SIM card module and input module, it is characterized in that: also comprise microprocessor, memory module, array microphone 4, the bluetooth sending module, external interface 7 and remote end module 8, wherein remote end module 8 is made of bluetooth receiver module serial connection earphone 11, array microphone 4 is distributed on mobile phone body 1 both sides, array microphone 4 intercoms mutually with the DSP process chip, the bluetooth sending module, external interface 7, memory module, input module, the SIM card module intercoms mutually with microprocessor respectively, the DSP process chip intercoms mutually with microprocessor, and the bluetooth sending module is in bluetooth receiver module radio communication.
Array microphone hearing aid based on cell phone platform, described cell phone platform comprises mobile phone body 1, be arranged at the DSP process chip in the mobile phone body 1 and the power module of being controlled respectively by the DSP process chip, output module and communication module 5, also comprise SIM card module and input module, it is characterized in that: also comprise microprocessor, memory module, array microphone 4, external interface 7 and remote end module 8, wherein remote end module 8 is connected in series wireless receiver 10 successively by reception antenna 9, earphone 11 consists of, array microphone 4 is distributed on mobile phone body 1 both sides, array microphone 4 intercoms mutually with the DSP process chip, external interface 7, memory module, input module, the SIM card module intercoms mutually with microprocessor respectively, and the DSP process chip intercoms mutually with microprocessor.
Described array microphone hearing aid based on cell phone platform, it is characterized in that described DSP process chip is connected in series filtration module, signal amplification module and signal enhancement module composition successively by the A/D modular converter, wherein A/D modular converter and the two-way communication of DSP process chip, the input of the output termination bluetooth sending module of signal enhancement module.
Described array microphone hearing aid based on cell phone platform is characterized in that also arranging on the mobile phone body 1 the adaptive array pointing system, between described adaptive array pointing system serial connection and array microphone 4 and the DSP process chip.
The control method of the array microphone hearing aid of the cell phone platform of described remote end module 8 based on being made of bluetooth receiver module serial connection earphone 11 is characterized in that described method is as follows:
Array microphone 4: the voice signal that acquisition has directive property;
Adaptive array pointing system: follow the trail of and analyze the noise source of noise in the voice signal that array microphone 4 obtains, and adjust accordingly the directional mode of array microphone 4, noise source is foreclosed all the time;
DSP process chip: communicate by letter with communication base station by communication module, and the transmission of sound signals that array microphone 4 is obtained is to microprocessor;
Microprocessor: be sent to remote end module 8 by the bluetooth sending module after successively process filtering of voice signal, amplification and the reinforcement that just array microphone 4 obtains;
Remote end module 8: adopt the bluetooth receiver module to receive the voice signal that the bluetooth sending module sends, and by earphone 11 signal that plays sound.
The control method of the array microphone hearing aid of described cell phone platform based on be connected in series successively the remote end module 8 that wireless receiver 10, earphone 11 consist of by reception antenna 9 is characterized in that described method is as follows:
Array microphone 4: the voice signal that acquisition has directive property;
Adaptive array pointing system: follow the trail of and analyze the noise source of noise in the voice signal that array microphone 4 obtains, and adjust accordingly the directional mode of array microphone 4, noise source is foreclosed all the time;
DSP process chip: communicate by letter with communication base station by communication module, and the transmission of sound signals that array microphone 4 is obtained is to microprocessor;
Microprocessor: the voice signal that obtains of the array microphone 4 logical DSP process chip that feeds back to through filtering, amplification and after strengthening successively just, DSP process chip successively by behind communication module, reception antenna 9, the wireless receiver 10 by earphone 11 signal that plays sound.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI565287B (en) * | 2014-11-07 | 2017-01-01 | xiu-wen Zhang | To achieve the smart phone in the remote microphone hearing aid system and its use |
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| EP2759147A1 (en) * | 2012-10-02 | 2014-07-30 | MH Acoustics, LLC | Earphones having configurable microphone arrays |
| US9590580B1 (en) * | 2015-09-13 | 2017-03-07 | Guoguang Electric Company Limited | Loudness-based audio-signal compensation |
| CN105551224A (en) * | 2016-02-16 | 2016-05-04 | 俞春华 | Hearing aiding method and system based on wireless transmission |
| GB2551521A (en) * | 2016-06-20 | 2017-12-27 | Nokia Technologies Oy | Distributed audio capture and mixing controlling |
| CN106412160A (en) * | 2016-10-28 | 2017-02-15 | 许昌学院 | Bluetooth mobile phone system with hearing aid function |
| CN107948870B (en) * | 2017-12-18 | 2024-08-16 | 珠海爱珂索移动医疗科技有限公司 | Portable audio noise reduction system based on stereo microphone array |
| CN110312193A (en) * | 2019-08-09 | 2019-10-08 | 佛山博智医疗科技有限公司 | Auxiliary sound collection device for hearing aids |
| CN111863019A (en) * | 2020-07-23 | 2020-10-30 | 博流智能科技（南京）有限公司 | Method and system for obtaining direction of interference sound source, method and system for obtaining position of target sound source, method and system for controlling electronic equipment |
| CN112911480A (en) * | 2021-01-22 | 2021-06-04 | 成都市舒听医疗器械有限责任公司 | Hearing aid sound amplification method and hearing aid |
| CN113038312A (en) * | 2021-03-06 | 2021-06-25 | 深圳市智之祺科技有限公司 | DSP audio processing system and method based on intelligent voice man-machine interaction |
| CN115396800A (en) * | 2022-05-16 | 2022-11-25 | 西安合谱声学科技有限公司 | Directional hearing aid method, directional hearing aid system, hearing aid and storage medium |
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Effective date of registration: 20161027 Address after: 210061 No. two, 9 hi tech Road, Nanjing hi tech Zone, Jiangsu Patentee after: Nanjing China-Spacenet Telecom Co., Ltd. Address before: 210044 Nanjing City, Pukou Province, Nanjing Road, No. 219, No. six, No. Patentee before: Nanjing University of Information Science and Technology |