CN105551224A - Hearing aiding method and system based on wireless transmission - Google Patents
Hearing aiding method and system based on wireless transmission Download PDFInfo
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- CN105551224A CN105551224A CN201610087231.XA CN201610087231A CN105551224A CN 105551224 A CN105551224 A CN 105551224A CN 201610087231 A CN201610087231 A CN 201610087231A CN 105551224 A CN105551224 A CN 105551224A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
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Abstract
A hearing aiding system based on wireless transmission comprises a multifunctional audio processing and wireless transmission device and a wearable speech processing device based on wireless transmission. The multifunctional audio processing and wireless transmission device comprises an audio processing and control module, an integrated audio collecting module, an audio collecting module and a close distance radio frequency receiving and transmitting module at the output end, wherein the audio processing and control module is provided with noise suppression, digital filtering, automatic gain control, speech enhancement, modulation and demodulation and various mode control units. Digital signals processed by the multifunctional audio processing and wireless transmission device are subjected to up-conversion and transmission through the close distance radio frequency receiving and transmitting module, the wearable speech processing device based on wireless transmission receives the processed digital signals and carries out down-conversion on the digital signals, and base band digital signals are obtained; then the base band digital signals are demodulated through the audio processing module and converted into analog audio signals through D/A conversion, and the analog audio signals are transmitted out through earphones. The wearable speech processing device based on wireless transmission comprises a close distance radio frequency receiving and transmitting module and an audio processing module.
Description
One, technical field
The present invention relates to the method and apparatus technical field of hearing aid in communication, especially belong to wireless transmission hearing assistance system design of electronic circuits.
Two, background technology
For ear auditory existing problems, the crowd hindering or exist communication disorders, osophone is adopted to be the most frequently used mode and in osophone in the past, usual employing independently device realizes hearing-aid function, as adopted the osophones such as boxlike, behind-the-ear, inner ear type, duct-type.Wherein boxlike osophone adopts cable to be connected with ear by osophone, but osophone needs to be placed in pocket or is worn on clothes, carry inconvenience, osophone is placed on human body simultaneously, human body is equivalent to barrier, and when external sound wave passes to body, the sound of low frequency part can reflex to the microphone of osophone thus add the low-frequency gain of osophone, but this low-frequency gain reflex can bring disadvantageous masking action to osophone High frequency amplification, thus reduces applicability.Boxlike osophone disguise is poor simultaneously, and it oneself is person hard of hearing that the adult dysaudia personnel of great majority are reluctant to allow others find, therefore also have impact on it and promotes.The osophones such as behind-the-ear, inner ear type, duct-type want cube very little on the one hand, limit the ability of acoustic processing in osophone, have impact on the effect of hearing aid, on the other hand, owing to hanging on ear by osophone or being placed in ear, greatly have impact on the comfortableness of user.Special when going out, bring very large inconvenience, the battery of these osophones is pocket uncommon in addition, and use cost is high, needs often to go to producer to buy, and uses very inconvenience.
The present invention proposes the mode by wireless transmission, adopts the device of separate type, improves and listens to external audio signal and the communication ability with others.
Three, summary of the invention
The present invention seeks to, mainly for ear auditory existing problems or the crowd that there is communication disorders, a kind of hearing-aid method based on wireless transmission and system are proposed, by the mode of wireless transmission, adopt the device of separate type, osophone is separated into Multifunctional audio process and radio transmitting device and the wearable voice processing apparatus based on wireless transmission, the technology such as beam-forming technology, Bluetooth technology, ZigBee technology, voice mutual translation and voice recording can be have employed respectively, improve and listen to external audio signal and the communication ability with others.
Technical scheme of the present invention: based on the hearing-aid method of wireless transmission, osophone is separated into Multifunctional audio process and radio transmitting device and the wearable voice processing apparatus based on wireless transmission, by integrated speech collection in Multifunctional audio process and radio transmitting device, also the modules such as broadcast reception can be comprised, by the voice audio signals received by increasing radio-frequency receiving-transmitting processing module, the near radio technical transmission such as use bluetooth give the wearable voice processing apparatus based on wireless transmission, by earphone, signal is delivered in ear, so both fashion, disguise is also better, it also avoid simultaneously and osophone is hung on ear or hangs in ear, improve the comfortableness of use,
In Multifunctional audio process and radio transmitting device, integrated audio array received function, by adopting audio frequency receiving array, utilize beam-forming technology, automatically aim at the mark the maximum gain direction of audio frequency received beam signal, and zero receive direction aim at undesired signal, the effects such as speech enhan-cement, noise suppression, auditory localization and echo cancelltion can be realized, can solve like this osophones such as behind-the-ear, inner ear type, duct-type because volume is little more difficult realize audio array receive problem.
Multifunctional audio process and radio transmitting device are autonomous device or can combine with crutch, case and bag, umbrella, watch, bracelet, bracelet, wheelchair, booster, walking aid, walking stick, teacup, electric torch etc., and wearable voice processing apparatus can adopt the forms such as cap, hair clip, glasses, clothing.
Wherein Bluetooth technology is a kind of radiotelegraphy of support equipment short haul connection, and be operated in ISM (industry, science, the medical science) frequency range of global general-use, its data rate can reach 1Mbps, adopts time division duplex transmission scheme to realize full duplex transmission.
Multifunctional audio process and radio transmitting device are provided with the long-range radio-frequency transceiver module in parallel with close distance radio frequency transceiver module, under telecommunication pattern, audio frequency process and control module control remote multimode radio-frequency transceiver module, communicate with the hearing assistance system of outside or mobile phone.When a signal is received, first carrying out down-converted by remote multimode radio-frequency transceiver module radio frequency signal obtains digital audio and video signals, then audio frequency process and control module is given, carry out demodulation, squelch, digital filtering, the process such as automatic growth control and speech enhan-cement, then the digital signal obtained after process is carried out up-conversion and transmitting by close distance radio frequency transceiver module, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, then by audio processing modules, solution mediation D/A is carried out to digital signal and convert sound signal to, sent by earphone, when transmitting a signal, then first A/D conversion and modulation treatment are carried out to the sound signal that needs are launched by the wearable device based on wireless transmission, give close distance radio frequency transceiver module again carry out upconversion process and launch, then received by Multifunctional audio process and radio transmitting device, down-converted is carried out by close distance radio frequency transceiver module wherein, give audio frequency process and control module, carry out squelch, digital filtering, the process such as automatic growth control and speech enhan-cement, then upconversion process is done by remote multimode radio-frequency transceiver module, produce radiofrequency signal and launch.
In Multifunctional audio process and radio transmitting device, input end connects audio array receiver module, audio array receiver module is that multiple microphone receives sound signal, FPGA or dsp chip is adopted to carry out enhancing process to signal, first the direction of arrival DOA carrying out sound signal estimates, then carries out adaptive array processing; In this audio array receiver module, use circle or planar array array: N=2-1024 unit, the sound signal that microphone array receives is through amplifying and A/D sampling, through audio frequency process and control module, first carry out Adaptive beamformer, then carry out squelch, digital filtering, automatic growth control, speech enhan-cement and modulation treatment; The adaptive weighted process of described Adaptive beamformer and far field or Near-field beamforming method: in far field mode of operation, the ESPRIT using multiple signal classification, estimated signal parameter, the DOA realizing sound signal based on Time Delay Estimation Method estimate, and carry out adaptive weighted process; At near-field working mode, Near-field beamforming method and sane Near-field beamforming is used to process.
Based on the hearing assistance system of wireless transmission, comprise Multifunctional audio process and radio transmitting device and the wearable voice processing apparatus based on wireless transmission, Multifunctional audio process and radio transmitting device comprise and have squelch, digital filtering, automatic growth control, speech enhan-cement, modulation /demodulation, the audio frequency process of various mode controlling unit and control module, integrated audio acquisition module, comprise modulation /demodulation, on, the close distance radio frequency transceiver module of down coversion and RF filter unit, audio frequency process and control module connect the audio collection module of input end and the close distance radio frequency transceiver module of output terminal, when listening to audio, digital signal after Multifunctional audio process and radio transmitting device process carries out up-conversion and transmitting by close distance radio frequency transceiver module, undertaken receiving and doing down-converted by the wearable voice processing apparatus based on wireless transmission, obtain baseband digital signal, by audio processing modules, demodulation is carried out to baseband digital signal again, and D/A converts simulated audio signal to, sent by earphone, wearable voice processing apparatus based on wireless transmission comprises close distance radio frequency transceiver module (can adopt Bluetooth chip, carry out Up/Down Conversion process) and audio processing modules (carrying out base-band digital modulation /demodulation, D/A and A/D conversion).
Audio frequency process and control module input end are connected to broadcast reception module, broadcast reception module by local oscillator unit, in put unit, detection unit, local oscillator unit provides local oscillation signal, through carrying out Frequency mixing processing with the amplitude modulation or fm broadcast signal of input, obtain intermediate-freuqncy signal, then through in put unit and carry out secondary amplification, then through frequency modulation or amplitude-modulated signal detection unit, produce baseband signal, and road unit after baseband digital signal being given after being sampled by A/D audio frequency process and control module.
In Multifunctional audio process and radio transmitting device, input end connects audio array receiver module, audio array receiver module is that multiple microphone receives sound signal, adopts high performance digital processing circuit such as FPGA or dsp chip to carry out enhancing process to signal; In this audio array receiver module, use circle or planar array loudspeaker array (N=2-1024 unit).First the DOA (direction of arrival) carrying out sound signal estimates, then carries out adaptive array processing; In far field mode of operation, the ESPRIT using multiple signal classification, estimated signal parameter, the DOA realizing sound signal based on Time Delay Estimation Method method estimate, and carry out adaptive weighted process; At near-field working mode, the method process such as Near-field beamforming method and sane Near-field beamforming can be used.
Multifunctional audio process and radio transmitting device are provided with the long-range radio-frequency transceiver module in parallel with close distance radio frequency transceiver module, long-range radio-frequency transceiver module adopts Zigbee or mobile communication module, carry out the wireless transmission between the Multifunctional audio process of many covers and radio transmitting device by the wireless communication technology of maturation, mobile communication module comprises employing GSM, CDMA, WCDMA, 4G module.
In audio frequency process and control module, clock module provides clock signal to other module, adopts high performance FPGA or dsp chip to carry out squelch, digital filtering, automatic growth control and speech enhan-cement process in audio frequency processing circuit; Adopt the controling parameters that high-performance cpu chip (as ARM7 etc.) reception external interface module is sent here simultaneously, thus control other each module, perform the operation of various pattern, the parameter of digital filtering is also sent to cpu chip by interface module, these parameters are loaded in FPGA or DSP of audio frequency processing circuit by CPU, adjusted the frequency response, yield value etc. of wave filter by audio frequency filtering circuit according to this value, dynamically meet everyone hearing compensation needs (can adopt based on existing hearing-aid method and technology).
Audio frequency process is connected voice mutual translation module with the input end of control module.
Audio frequency process is connected recording playback module with control module output terminal; The output terminal of audio frequency process and control module is also provided with location and oriented module, comprises GPS outdoor positioning unit in location and oriented module.
Simultaneously in Multifunctional audio process and radio transmitting device, input end connects audio array receiver module, can realize the effects such as speech enhan-cement, noise suppression, auditory localization and echo cancelltion.Under listen mode, control audio collection module by audio frequency process and control module, the sound signal of outside is carried out amplification and A/D sampling, then give the rear road unit of audio frequency process and control module.
Under array received enhancement mode, audio array receiver module is controlled by audio frequency process and control module, amplification and A/D sampling are carried out to the sound signal that the audio array (audio array receiver module adopts the microphone array of N=2 ~ 1024 yuan circle or planar array distribution usually) of multichannel microphone composition receives, give audio frequency process and control module, first carry out Adaptive beamformer, then carry out the process such as squelch, digital filtering, automatic growth control, speech enhan-cement and modulation.
Multifunctional audio process and radio transmitting device are provided with the long-range radio-frequency transceiver module in parallel with close distance radio frequency transceiver module, under telecommunication pattern, audio frequency process and control module control remote multimode radio-frequency transceiver module, communicate with the hearing assistance system of outside or mobile phone.When a signal is received, first carrying out down-converted by remote multimode radio-frequency transceiver module radio frequency signal obtains digital audio and video signals, then audio frequency process and control module is given, carry out up-conversion and transmitting by close distance radio frequency transceiver module again, then undertaken receiving and processing by the wearable device based on wireless transmission; First A/D conversion and modulation treatment are carried out to sound signal by the wearable device based on wireless transmission when transmitting, give close distance radio frequency transceiver module again carry out upconversion process and launch, then received by Multifunctional audio process and radio transmitting device, down-converted is carried out by close distance radio frequency transceiver module wherein, give audio frequency process and control module, carry out the process such as squelch, digital filtering, automatic growth control and speech enhan-cement, then do upconversion process by remote multimode radio-frequency transceiver module, produce radiofrequency signal and launch.
Long-range radio-frequency transceiver module of the present invention adopts Zigbee or mobile communication module, the wireless transmission between the Multifunctional audio process of many covers and radio transmitting device is carried out by the wireless communication technology of maturation, not only can realize communication function between any two, the mutual communication function between multiple user can also be realized.Utilize Zigbee networking technology, can intercom mutually between ZigBee node.When adopting mobile module to communicate, the function of voice communication between technology realization with mobile phone such as GSM, CDMA, WCDMA, 4G can be adopted.Under telecommunication pattern, not only can realize the intercommunication mutually between other hearing assistance system, also can realize the communication between cellphone subscriber.
Audio frequency process of the present invention and control module output terminal are provided with recording playback module, by adopting efficient compression algorithm and mass storage, can realize the voice recording function of long period, adopt noise abatement process simultaneously, can improve the sharpness of voice.
Under recording mode, control audio collection module and recording playback module by audio frequency process and control module.When receiving radio reception frequency, first amplified by the sound signal of audio collection module to outside and A/D sampling, give audio frequency process and control module, carry out the process such as squelch, digital filtering, automatic growth control and speech enhan-cement, then the voice data after process is delivered in recording playback module and store.When needs audio plays, the voice data be stored in recording playback module is read by audio frequency process and control module, first by audio frequency process and control module, modulation treatment is carried out to voice data, give close distance radio frequency transceiver module again and carry out upconversion process and transmitting, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, finally by audio processing modules, solution mediation D/A is carried out to digital signal and convert sound signal to, and sent by earphone.
Audio frequency process and control module input end connection interface module, input audio file by interface module, be stored into recording playback module.
In audio frequency process and control module, clock module provides clock signal to other module, adopts high performance FPGA or dsp chip to carry out the process such as squelch, digital filtering, automatic growth control and speech enhan-cement in audio frequency processing circuit; Adopt the controling parameters that high-performance cpu chip (as ARM7 etc.) reception external interface module is sent here simultaneously, thus control other each module, perform the operation of various pattern, the parameter of digital filtering is also sent to cpu chip by interface module, these parameters are loaded in FPGA or DSP of audio frequency processing circuit by CPU, adjusted the frequency response, yield value etc. of wave filter by audio frequency filtering circuit according to this value, dynamically meet everyone hearing compensation needs (can adopt based on existing hearing-aid method and technology).
In location and oriented module, adopting GPS outdoor positioning technology (as adopted the wireless locating module such as XM1613), carrying out the measurement based on time tranfer; Simultaneously for indoor positioning, the technology such as WIFI locates, bluetooth location (as adopted the wireless locating module such as CC2640), Zigbee location, RFID location (as adopted the wireless locating module such as XM1613) can being adopted, carrying out the measurement based on signal attenuation etc.Cartographic information is stored in a storage module simultaneously, in the CPU of path calculation module, calculate the path of advance, and these data are supplied to audio frequency process and control module, according to circuit composition as shown in figure 21:
Under guided mode, control location and oriented module by audio frequency process and control module, audio frequency process is connected voice mutual translation module with the input end of control module.When pointing out the destination address that will go when I speaks, sound signal is by converting digital signal based on wireless wearable device to by audio processing modules A/D and modulating, radiofrequency signal is up-converted into again by close distance radio frequency transceiver module, then received by Multifunctional audio process and radio transmitting device, digital baseband signal is downconverted into by its close distance radio frequency transceiver module, then demodulation is carried out by audio frequency process and control module, obtain sound signal and give voice mutual translation module, by this module, speech is identified and mechanical translation (can utilize the sound identification module of internal mass or access mobile Internet by remote multimode radio-frequency transceiver module), then audio frequency process and control module is given by the positional information obtained after process, then location and oriented module is given, then location and oriented module determine current position, according to target position information, periodically provide travel track value, then speech recognition intertranslation module is given by travel track value, phonetic synthesis is carried out by speech recognition intertranslation module, then the modulation of sound signal is carried out by audio frequency process and control module, and give close distance radio frequency transceiver module and carry out up-conversion and launch, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, finally carry out demodulation by audio processing modules and convert digital signal D/A to simulated audio signal, sent by earphone.
Comprehensive: Multifunctional audio process of the present invention and radio transmitting device are primarily of compositions such as audio collection module, broadcast reception module, audio array receiver module, speech recognition intertranslation module, audio frequency process and control module, close distance radio frequency transceiver module, remote multimode radio-frequency transceiver module, recording playback module, location and oriented module, warning and lighting module, power module and interface modules.
Osophone is separated into Multifunctional audio process and radio transmitting device and the wearable voice processing apparatus based on wireless transmission by the present invention, by modules such as integrated speech collection, broadcast receptions in Multifunctional audio process and radio transmitting device, by the sound signal received by increasing radio-frequency receiving-transmitting processing module, the near radio technical transmission such as use bluetooth give the wearable voice processing apparatus based on wireless transmission, by earphone, signal is delivered in ear, so both fashion, disguise is also better; It also avoid simultaneously and osophone is hung on ear or hangs in ear, improve the comfortableness of use.Multifunctional audio process and radio transmitting device can combine with crutch, case and bag, umbrella, watch, bracelet, bracelet, wheelchair, booster, walking aid, walking stick, teacup, electric torch etc., and wearable voice processing apparatus can adopt the forms such as cap, hair clip, glasses, clothing.Wherein Bluetooth technology is a kind of radiotelegraphy of support equipment short haul connection, and be operated in ISM (industry, science, the medical science) frequency range of global general-use, its data rate can reach 1Mbps, adopts time division duplex transmission scheme to realize full duplex transmission.Simultaneously in Multifunctional audio process and radio transmitting device, be integrated with audio array receiving function, by adopting audio frequency receiving array, utilize beam-forming technology, automatically aim at the mark the maximum gain direction of audio frequency received beam signal, and zero receive direction is aimed at undesired signal, the effects such as speech enhan-cement, noise suppression, auditory localization and echo cancelltion can be realized, can solve like this osophones such as behind-the-ear, inner ear type, duct-type because volume is little more difficult realize audio array receive problem.
Simultaneously between the inconvenient crowd of hearing, the situation that communication is not smooth when out on tours, the wireless communication technologys such as Zigbee can be adopted, carry out the wireless transmission between the Multifunctional audio process of many covers and radio transmitting device, so not only can realize communication function between any two, the mutual communication function between multiple user can also be realized.Wherein Zigbee is as a kind of short-distance wireless communication technology, also ISM (industry, science, the medical science) frequency range of global general-use is operated in, transmission range, generally between 10 ~ 100m, after increase power amplifier module increases emissive power, rises to 1 ~ 3km.When supporting to communicate between multiple user, because ZigBee can support at most the wireless-transmission network of 65000 nodes, in whole network range, can intercom mutually between each ZigBee node, its network can easily for user provides wireless data transmission function, because Zigbee speed is lower, networking capability is comparatively strong, power consumption is lower, therefore has very strong applicability in Internet of Things field.
In addition, for the crowd between different language, in order to exchange more easily, have employed the mode of operation of voice mutual translation, be integrated with the functions such as speech recognition, mechanical translation, phonetic synthesis, noise reduction, simultaneously auxiliary with powerful speech database, mandarin and the intertranslation function between dialect, middle foreign language etc. can be supported.
Considering the reaction factor of listener, present invention also adds voice recording function, by adopting efficient compression algorithm and mass storage, the voice recording function of long period can be realized, adopt noise abatement process simultaneously, the sharpness of voice can be improved.
Beneficial effect: the present invention is mainly for ear auditory existing problems, obstacle person or the crowd that there is communication disorders, by the mode of wireless transmission, adopt the device of separate type, have employed the technology such as beam-forming technology, Bluetooth technology, ZigBee technology, voice mutual translation and voice recording, improve and listen to external audio signal and the communication ability with others.The present invention is especially applied to old person hard of hearing.
Four, accompanying drawing explanation
Fig. 1 is the hearing assistance system composition schematic diagram that the present invention is based on wireless transmission;
Fig. 2 is independence listen mode Signal transmissions schematic diagram of the present invention;
Fig. 3 is broadcast audience mode signaling schematic diagram of the present invention;
Fig. 4 is array received enhancement mode Signal transmissions schematic diagram of the present invention;
Fig. 5 is voice mutual translation mode signaling schematic diagram of the present invention;
Fig. 6 is that the present invention two overlaps communication scheme between hearing assistance system;
Fig. 7 is communication scheme between the present invention's many covers hearing assistance system;
Fig. 8 is communication scheme between hearing assistance system of the present invention and mobile phone;
Fig. 9 is telecommunication mode signaling schematic diagram of the present invention;
Figure 10 is recording mode Signal transmissions schematic diagram of the present invention;
Figure 11 is guided mode Signal transmissions schematic diagram of the present invention;
Figure 12 is audio collection module of the present invention composition schematic diagram;
Figure 13 is broadcast reception module of the present invention composition schematic diagram;
Figure 14 is audio array receiver module process schematic diagram of the present invention;
Figure 15 is the adaptive weighted process schematic diagram of the present invention;
Figure 16 is the theory diagram of Near-field beamforming device of the present invention;
Figure 17 is the present invention's sane Near-field beamforming device theory diagram;
Figure 18 is speech recognition intertranslation resume module schematic diagram of the present invention;
Figure 19 is audio frequency process of the present invention and control module composition schematic diagram;
Figure 20 is close distance radio frequency transceiver module of the present invention composition schematic diagram;
Figure 21 is long-range radio-frequency transceiver module of the present invention composition schematic diagram;
Figure 22 is recording playback module of the present invention composition schematic diagram;
Figure 23 is location of the present invention and oriented module composition schematic diagram;
Figure 24 is warning of the present invention and lighting module composition schematic diagram;
Figure 25 is interface module of the present invention composition schematic diagram;
Figure 26 is power module of the present invention composition schematic diagram;
Figure 27 is the wearable voice processing apparatus composition schematic diagram that the present invention is based on wireless transmission;
Figure 28 is Multifunctional audio process of the present invention and radio transmitting device form schematic diagram;
Figure 29 is the wearable voice processing apparatus form schematic diagram that the present invention is based on wireless transmission.
Five, embodiment
As shown in Figure 1: Fig. 1 is based on the hearing assistance system composition schematic diagram of wireless transmission.The present invention is by Multifunctional audio process and radio transmitting device (left side) and form based on the wearable voice processing apparatus (right side) of wireless transmission.
Wherein Multifunctional audio process and radio transmitting device are made up of audio frequency process and control module, audio collection module, broadcast reception module, audio array receiver module, speech recognition intertranslation module, close distance radio frequency transceiver module, remote multimode radio-frequency transceiver module, recording playback module, location and oriented module, warning and lighting module, power module and interface module etc., and the wearable voice processing apparatus based on wireless transmission is made up of close distance radio frequency transceiver module, audio processing modules and power module etc.
(1) present system has following several mode of operation:
1, independent listen mode
Under independent listen mode, audio collection module is controlled by audio frequency process and control module, the sound signal of outside is carried out amplification and A/D sampling, give audio frequency process and control module, carry out squelch, digital filtering, automatic growth control, the process such as speech enhan-cement and modulation, then the digital signal obtained after process is carried out up-conversion and transmitting by close distance radio frequency transceiver module, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, obtain baseband digital signal, finally by audio processing modules, demodulation is carried out to baseband digital signal, and D/A converts simulated audio signal to, sent by earphone.As shown in Figure 2;
2, broadcast audience pattern
Under broadcast audience pattern, broadcast reception module is controlled by audio frequency process and control module, by this module to the amplitude modulation received, fm broadcast signal carries out solution mediation A/D conversion, obtain digital audio and video signals, give audio frequency process and control module, carry out squelch, digital filtering, automatic growth control, the process such as speech enhan-cement and modulation, then the digital signal obtained after process is carried out up-conversion and transmitting by close distance radio frequency transceiver module, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, finally by audio processing modules demodulation is carried out to digital signal and D/A converts simulated audio signal to, sent by earphone.As shown in Figure 3;
3, array received enhancement mode
Under array received enhancement mode, audio array receiver module is controlled by audio frequency process and control module, amplification and A/D sampling are carried out to the sound signal that multichannel microphone (usually adopting N=2 ~ 1024 yuan circle or planar array) receives, give audio frequency process and control module, carry out Adaptive beamformer, squelch, digital filtering, automatic growth control, the process such as speech enhan-cement and modulation, then the digital signal obtained after process is carried out up-conversion and transmitting by close distance radio frequency transceiver module, then undertaken receiving by the wearable device based on wireless transmission and do down coversion and demodulation process, finally convert digital signal D/A to simulated audio signal by audio processing modules, and sent by earphone.As shown in Figure 4;
4, voice mutual translation pattern
Under voice mutual translation pattern, control speech recognition intertranslation module by audio frequency process and control module.When listening to speech, first by speech recognition intertranslation module, speech is identified, mechanical translation and phonetic synthesis process, and give audio frequency process and control module by the audio-frequency information after process, carry out squelch, digital filtering, automatic growth control, the process such as speech enhan-cement and modulation, then the digital signal obtained after process is carried out up-conversion and transmitting by close distance radio frequency transceiver module, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, finally by audio processing modules demodulation is carried out to digital signal and D/A converts simulated audio signal to, and sent by earphone.When I speaks, then first A/D conversion and modulation treatment are carried out to sound signal by based on the audio processing modules in the wearable device of wireless transmission, give close distance radio frequency transceiver module again carry out upconversion process and launch, then received by Multifunctional audio process and radio transmitting device, down-converted is carried out by close distance radio frequency transceiver module wherein, give audio frequency process and control module, carry out demodulation, squelch, digital filtering, the process such as automatic growth control and speech enhan-cement, then by speech recognition intertranslation module, speech is identified, mechanical translation and phonetic synthesis process, pass through loudspeaker again, produce voice signal, as shown in Figure 5,
5, telecommunication pattern
Under telecommunication pattern, not only can realize the intercommunication mutually between other hearing assistance system, also can realize the communication between cellphone subscriber.When communicating with other hearing assistance system, can adopt the function of voice communication that the technology such as Zigbee, bluetooth realizes between two cover systems, communication scheme as shown in Figure 6;
Not only can realize intercommunication mutually between any two between multiple hearing assistance system, also can adopt ZigBee technology, realize the broadcast between n node (n=2 ~ 65000) or group-net communication, as shown in Figure 7;
When communicating with mobile phone, can adopt the function of voice communication between technology realization with mobile phone such as GSM, CDMA, WCDMA, 4G, communication scheme as shown in Figure 8;
Under telecommunication pattern, control remote multimode radio-frequency transceiver module by audio frequency process and control module, communicate with the hearing assistance system of outside or mobile phone.When a signal is received, first carrying out down-converted by remote multimode radio-frequency transceiver module radio frequency signal obtains digital audio and video signals, then audio frequency process and control module is given, carry out demodulation, squelch, digital filtering, the process such as automatic growth control and speech enhan-cement, then the digital signal obtained after process is carried out up-conversion and transmitting by close distance radio frequency transceiver module, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, then by audio processing modules, solution mediation D/A is carried out to digital signal and convert sound signal to, sent by earphone.When I speaks, then first A/D conversion and modulation treatment are carried out to sound signal by the wearable device based on wireless transmission, give close distance radio frequency transceiver module again carry out upconversion process and launch, then received by Multifunctional audio process and radio transmitting device, down-converted is carried out by close distance radio frequency transceiver module wherein, give audio frequency process and control module, carry out squelch, digital filtering, the process such as automatic growth control and speech enhan-cement, then upconversion process is done by remote multimode radio-frequency transceiver module, produce radiofrequency signal and launch, as shown in Figure 9,
6, recording mode
Under recording mode, control audio collection module and recording playback module by audio frequency process and control module.When listening to audio, first amplified by the sound signal of audio collection module to outside and A/D sampling, give audio frequency process and control module, carry out the process such as squelch, digital filtering, automatic growth control and speech enhan-cement, then the voice data after process is delivered in recording playback module and store.When needs audio plays, the voice data be stored in recording playback module is read by audio frequency process and control module, first by audio frequency process and control module, modulation treatment is carried out to voice data, give close distance radio frequency transceiver module again and carry out upconversion process and transmitting, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, finally by audio processing modules, solution mediation D/A is carried out to digital signal and convert sound signal to, and sent by earphone.Also audio file can be inputted by interface module, be stored into recording playback module, then read by audio frequency process and control module the voice data that is stored in recording playback module and modulate, give close distance radio frequency transceiver module and carry out upconversion process and transmitting, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, finally by audio processing modules, demodulation is carried out to digital signal, and D/A converts sound signal to, is sent by earphone.As shown in Figure 10;
7, guided mode
Under guided mode, control location and oriented module by audio frequency process and control module.When pointing out the destination address that will go when I speaks, sound signal is by converting digital signal based on wireless wearable device to by audio processing modules A/D and modulating, radiofrequency signal is up-converted into again by close distance radio frequency transceiver module, then received by Multifunctional audio process and radio transmitting device, digital baseband signal is downconverted into by its close distance radio frequency transceiver module, then demodulation is carried out by audio frequency process and control module, obtain sound signal and give voice mutual translation module, by this module, speech is identified and mechanical translation (can utilize the sound identification module of internal mass or access mobile Internet by remote multimode radio-frequency transceiver module), then audio frequency process and control module is given by the positional information obtained after process, then location and oriented module is given, then location and oriented module determine current position, according to target position information, periodically provide travel track value, then speech recognition intertranslation module is given by travel track value, phonetic synthesis is carried out by speech recognition intertranslation module, then the modulation of sound signal is carried out by audio frequency process and control module, and give close distance radio frequency transceiver module and carry out up-conversion and launch, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, finally carry out demodulation by audio processing modules and convert digital signal D/A to simulated audio signal, sent by earphone.As shown in figure 11;
8, warning and light illumination mode
Under warning and light illumination mode, warning function is provided, in case of emergency, can be reminded other people, ask for help; Can illumination be provided simultaneously, guarantee the safety of walking night.
(2) the cardinal principle figure of this system components is as follows;
Multifunctional audio process and radio transmitting device are primarily of compositions such as audio collection module, broadcast reception module, audio array receiver module, speech recognition intertranslation module, audio frequency process and control module, close distance radio frequency transceiver module, remote multimode radio-frequency transceiver module, recording playback module, location and oriented module, warning and lighting module, power module and interface modules.The schematic diagram of each module is as follows;
1, audio collection module
Audio collection module is mainly used in carrying out the process such as audio frequency amplification and sampling to sound signal, note amplifier (as LM386 etc.) and A/D chip (as AL1101 etc.) can be adopted, adopt the sample frequency such as 44.1KHz or 48KHz, convert sound signal to digital signal, its composition as shown in figure 12;
2, broadcast reception module
Broadcast reception module first provides local oscillation signal by local oscillator, through carrying out Frequency mixing processing with the amplitude modulation or fm broadcast signal of input, obtain intermediate-freuqncy signal, again through in put 1 and in put 2 signals and carry out secondary amplification, do frequency modulation or amplitude-modulated signal detection again, produce baseband signal, and give audio frequency process and control module by baseband digital signal after being sampled by A/D, its circuit composition as shown in figure 13;
3, audio array receiver module
Audio array receiver module receives sound signal mainly through multiple microphone, adopts high performance digital processing circuit (as FPGA or dsp chip) to carry out enhancing process to signal.
(1) in far field mode of operation, first the DOA (direction of arrival) carrying out sound signal estimates, can select and estimate based on the ESPRIT of the multiple signal classification of circular or planar array array, estimated signal parameter, the DOA that realizes sound signal based on methods such as Time Delay Estimation Method; After completing sound signal DOA (direction of arrival) estimation, will carry out adaptive array processing, its circuit composition as shown in figure 14;
(i) multiple signal classification method
Multiple signal classification side's ratio juris in spatial domain, carries out spectrum peak search obtain information source direction.First by asking for the covariance matrix R of array signal, and noise subspace and signal subspace is decomposed into, totally two sub spaces.Namely have
Due to the orthogonality relation of noise characteristic vector signal phasor, obtain array manifold spectrum
Wherein a (θ) is direction vector, is tried to achieve the DOA value of echo signal by the crest asking for spatial spectrum.
(ii) ESPRIT of estimated signal parameter
The method requires that array structure exists unchangeability, and this unchangeability obtains by two kinds of means: one is that array itself exists two or more identical submatrixs, and two is can obtain these submatrixs by conversion.Suppose existence two identical submatrixs, and two submatrix separation delta are known.The reception data of first submatrix are X
1t (), the reception data of second submatrix are X
2t (), can obtain
X
1(t)＝A(θ)S(t)+N
1(t)
X
2(t)＝A(θ)ΦS(t)+N
2(t)
The array manifold A of its neutron array 1
1=A (θ), the array manifold A of submatrix 2
2=A (θ) Φ, and
The diagonal element of Φ is the phase delay of K signal between array element herein.
By X
1(t) and X
2t () merges, obtain
Ask for the autocorrelation matrix of X (t)
Wherein R
s=E{S (t) (S (t))
h.Then to R
xXcarry out Eigenvalues Decomposition, obtain
Wherein Us represents the signal subspace that large eigenwert character pair vector is opened, U
nrepresent the noise subspace that little eigenwert is opened.
The signal subspace opened due to large eigenvector is consistent with the signal subspace that array manifold is opened, and namely has
The nonsingular matrix T that then existence one is unique, makes
Exist
The subspace U wherein opened by the large eigenvector of submatrix 1
s1, the subspace U opened by the large eigenvector of submatrix 2
s2equal with the subspace that array manifold A opens, namely have
span{U
s1}＝span{U
s2}＝span{A(θ)}
The relation of known signal subspace is as follows:
U
s2＝U
s1T
-1ΦT＝U
s1Ψ
Wherein Ψ=T
-1Φ T, reflects the rotational invariance of the signal subspace of two sub-battle array array received data.
When array manifold A is non-singular matrix, then
Φ＝TΨT
-1
Then the diagonal matrix of the eigenwert composition of Ψ equals Φ.By trying to achieve invariable rotary matrix Ψ, the incident angle of signal can be obtained.
(iii) based on Time Delay Estimation Method
More based on delay time estimation method, classical general cross correlation can be adopted.The method, by asking for the cross-power spectrum between unlike signal, gives the weighting that Received signal strength is certain in frequency domain, carrys out the impact of restraint speckle and reflection, then by signal inverse transformation after weighting to time domain, obtains the cross correlation function between unlike signal.Its peak is the relative time delay between signal.Simultaneously after the time delay obtaining each microphone array element is estimated, the position in conjunction with microphone can estimate the positional information of sound source.
After the DOA completing sound signal estimates, then carry out adaptive weighted process, shown in process signal Figure 15;
Adaptive array, according to the rule such as maximum signal to noise ratio, least mean-square error, is weighted process to the sound signal received, and useful signal direction forms main beam, interference radiating way is formed zero and falls into, thus improve the gain of sound signal.
Wherein input audio signal is
X(n)＝[x
1(n),x
2(n),…,x
N(n)]
T
Weighting matrix W is
W＝[w
1,w
2,…,w
N]
The audio array signal value output finally produced is
Y(n)＝W
TX(n)
(2) at near-field working mode, when sound source is positioned at array near field, need to adopt Near-field beamforming method to the degeneration of the squelch performance avoided far field beam formation method and cause.The methods such as Near-field beamforming method and sane Near-field beamforming can be used to process, and treatment step is as follows:
(i) Near-field beamforming method
Near-field signals model is based on spherical wave hypothesis, and amplitude fading and time delay are introduced in model, wherein the direction vector of array signal is a
sp(r
w), delay vector is a
dt(r
w), the steering vector of array is
Output signal after near field compensates
The theory diagram of Near-field beamforming device as shown in figure 16.
(ii) sane Near-field beamforming method
Suppose that each element position of N number of microphone composition array is (x
1, y
1, z
1), (x
2, y
2, z
2) ..., (x
n, y
n, z
n), near field
The position of sound source is (x
s, y
s, z
s), the tap length of each microphone channel is J, n-th snap, can form NJ dimensional signal vector X (n) by J tap time delay array signal.
Minimum variance adaptive beam formula can be retrained by near field to calculate
Wherein R
xXbe the autocorrelation matrix of X (n), W is Beam-former weight coefficient vector, W=[w
1,1..., w
n, 1, w
1,2..., w
n, 2..., w
1, J... w
n,J]
t, C is constraint matrix, and F is the impulse response vector corresponding to echo signal, and sane Near-field beamforming device theory diagram is as Figure 17.
The constraint matrix of near field linear constraint minimum variance Adaptive beamformer problem can be expressed as:
C＝TC
0
Wherein C
0for corresponding to the constraint matrix under far field condition, T is near field compensation matrix.
Can be in the hope of the weighting matrix of optimum
4, speech recognition intertranslation module
In speech recognition intertranslation module, high performance CPU (as ARM9 etc.) chip is adopted to carry out the process such as speech recognition, mechanical translation and synthesis, simultaneously by the database purchase of different phonetic in jumbo SRAM, SD card or micro hard disk, when carrying out mechanical translation, different language datas can be called, finally carry out phonetic synthesis process, its circuit composition as shown in figure 18;
5, audio frequency process and control module
In audio frequency process and control module, clock module provides clock signal to other module, adopts high performance FPGA or dsp chip to carry out the process such as squelch, digital filtering, automatic growth control and speech enhan-cement in audio frequency processing circuit; Adopt the controling parameters that high-performance cpu chip (as ARM7 etc.) reception external interface module is sent here simultaneously, thus control other each module, perform the operation of various pattern, the parameter of digital filtering is also sent to cpu chip by interface module, these parameters are loaded in FPGA or DSP of audio frequency processing circuit by CPU, adjusted the frequency response, yield value etc. of wave filter by audio frequency filtering circuit according to this value, dynamically meet everyone hearing compensation needs.Circuit composition as shown in figure 19;
6, close distance radio frequency transceiver module
In close distance radio frequency transceiver module, technical transmission audio frequency and the control informations such as main employing bluetooth, adopt (as RF2968 etc.) and the RF bandpass filter such as bluetooth transceiver module, its circuit composition is as shown in figure 20;
7, remote multimode radio-frequency transceiver module
In long-range radio-frequency transceiver module, Zigbee wireless transport module (as F8913 etc.) and power amplifier module can be adopted, Wifi wireless transport module (as EMW3162 etc.) and power amplifier module, Bluetooth wireless transmission module (as CSR8615 etc.) and power amplifier module, gsm wireless transport module (as M12-D etc.), cdma wireless transport module (as MC8618 etc.), WCDMA wireless transport module (as EM820W etc.), 4G wireless transport modules (as MC7710) etc. select module with radio frequency, by audio frequency process and control module according to different communication requirements, carry out radio frequency selection, its circuit composition as shown in figure 21,
8, recording playback module
In recording playback module, audio frequency processing circuit (as STM32 processor etc.) can be adopted to carry out the process such as compress speech and noise abatement such as ADPCM, and data are stored in memory circuit (as cards such as CF, SD); When playing, the data of storage are given audio frequency processing circuit decoding.Be stored in memory circuit by interface by the voice document of outside, circuit composition as shown in figure 22 simultaneously;
9, location and oriented module
In location and oriented module, adopting GPS outdoor positioning technology (as adopted the wireless locating module such as XM1613), carrying out the measurement based on time tranfer; Simultaneously for indoor positioning, the technology such as WIFI locates, bluetooth location (as adopted the wireless locating module such as CC2640), Zigbee location, RFID location (as adopted the wireless locating module such as XM1613) can being adopted, carrying out the measurement based on signal attenuation etc.Cartographic information is stored in a storage module simultaneously, in the CPU of path calculation module, calculate the path of advance, and these data are supplied to audio frequency process and control module, according to circuit composition as shown in figure 23;
10, warning and lighting module
In warning and lighting module, high-power alarm module and LED display module composition can be adopted, control high-power loudspeaker respectively by audio frequency process and control module and control LED to open.Its circuit composition as shown in figure 24;
11, interface module
In interface module, keystroke interface circuit and usb circuit can be provided, this module converts the key information (button of various mode of operation is selected) in Multifunctional audio process and radio transmitting device the data such as to serial ports, the data of USB port are changed simultaneously, also the data such as serial ports are converted to, give audio frequency process and control module, its circuit composition as shown in figure 25;
12, power module
In power module, Multifunctional audio process and each module for power supply voltage of radio transmitting device can be supplied to, also can the wearable voice processing apparatus based on wireless transmission be charged, this module is made up of ac-dc converter circuit, charging circuit and lithium battery etc., and its circuit composition as shown in figure 26;
Wearable voice processing apparatus based on wireless transmission is made up of close distance radio frequency transceiver module, RF bandpass filter, audio processing modules, charging circuit and lithium battery etc.Charged to lithium battery by charging circuit, all the other modules are by lithium battery power supply.Close distance radio frequency transceiver module can adopt the compositions such as Bluetooth chip (as BC358239A), and its circuit composition as shown in figure 27;
(3) the principal mode schematic diagram of each device of this system is as follows;
1, Multifunctional audio process and radio transmitting device
Multifunctional audio process and radio transmitting device can adopt the multiple integral structure forms such as crutch, case and bag, umbrella, watch, bracelet, as shown in figure 28;
2, based on the wearable voice processing apparatus of wireless transmission
Wearable voice processing apparatus based on wireless transmission can adopt the multiple integral structure forms such as cap, hair clip, glasses, as shown in figure 29.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. based on the hearing-aid method of wireless transmission, it is characterized in that osophone to be separated into Multifunctional audio process and radio transmitting device and the wearable voice processing apparatus based on wireless transmission, by modules such as integrated speech collections in Multifunctional audio process and radio transmitting device, by the radio-frequency receiving-transmitting processing module of voice audio signals by increasing received, use the near radio technical transmission comprising bluetooth to give wearable voice processing apparatus based on wireless transmission, by earphone, signal is delivered in ear;
In Multifunctional audio process and radio transmitting device, integrated audio array received function, by adopting audio frequency receiving array, utilizes beam-forming technology, automatically aim at the mark the maximum gain direction of audio frequency received beam signal, and zero receive direction is aimed at undesired signal; Multifunctional audio process and radio transmitting device are autonomous device or combine with case and bag box, crutch, umbrella, watch, bracelet, bracelet, wheelchair, booster, walking aid, walking stick, teacup or electric torch.
2. the hearing-aid method of wireless transmission according to claim 1, it is characterized in that Multifunctional audio process and radio transmitting device are provided with the long-range radio-frequency transceiver module in parallel with close distance radio frequency transceiver module, under telecommunication pattern, audio frequency process and control module control remote multimode radio-frequency transceiver module, communicate with the hearing assistance system of outside or mobile phone, when a signal is received, first carrying out down-converted by remote multimode radio-frequency transceiver module radio frequency signal obtains digital audio and video signals, then audio frequency process and control module is given, carry out demodulation, squelch, digital filtering, the process such as automatic growth control and speech enhan-cement, then the digital signal obtained after process is carried out up-conversion and transmitting by close distance radio frequency transceiver module, then undertaken receiving and doing down-converted by the wearable device based on wireless transmission, then by audio processing modules, solution mediation D/A is carried out to digital signal and convert sound signal to, sent by earphone, when transmitting a signal, then first A/D conversion and modulation treatment are carried out to the sound signal that needs are launched by the wearable device based on wireless transmission, give close distance radio frequency transceiver module again carry out upconversion process and launch, then received by Multifunctional audio process and radio transmitting device, down-converted is carried out by close distance radio frequency transceiver module wherein, give audio frequency process and control module, carry out squelch, digital filtering, the process such as automatic growth control and speech enhan-cement, then upconversion process is done by remote multimode radio-frequency transceiver module, produce radiofrequency signal and launch.
3. the hearing-aid method of wireless transmission according to claim 1, it is characterized in that in Multifunctional audio process and radio transmitting device, input end connects audio array receiver module, audio array receiver module is that multiple microphone receives sound signal, FPGA or dsp chip is adopted to carry out enhancing process to signal, first the direction of arrival DOA carrying out sound signal estimates, then carries out adaptive array processing; In this audio array receiver module, use circle or planar array array: N=2-1024 unit, the sound signal that microphone array receives is through amplifying and A/D sampling, through audio frequency process and control module, first carry out Adaptive beamformer, then carry out squelch, digital filtering, automatic growth control, speech enhan-cement and modulation treatment; The adaptive weighted process of described Adaptive beamformer and far field or Near-field beamforming method: in far field mode of operation, the ESPRIT using multiple signal classification, estimated signal parameter, the DOA realizing sound signal based on Time Delay Estimation Method estimate, and carry out adaptive weighted process; At near-field working mode, Near-field beamforming method and sane Near-field beamforming is used to process.
4. according to the hearing assistance system based on wireless transmission one of claim 1-3 Suo Shu, it is characterized in that comprising Multifunctional audio process and radio transmitting device and the wearable voice processing apparatus based on wireless transmission, Multifunctional audio process and radio transmitting device comprise and have squelch, digital filtering, automatic growth control, speech enhan-cement, modulation /demodulation, the audio frequency process of various mode controlling unit and control module, integrated audio acquisition module, comprise modulation /demodulation, on, the close distance radio frequency transceiver module of down coversion and RF filter unit, audio frequency process and control module connect the audio collection module of input end and the close distance radio frequency transceiver module of output terminal, when listening to audio, digital signal after Multifunctional audio process and radio transmitting device process carries out up-conversion and transmitting by close distance radio frequency transceiver module, undertaken receiving and doing down-converted by the wearable voice processing apparatus based on wireless transmission, obtain baseband digital signal, by audio processing modules, demodulation is carried out to baseband digital signal again, and D/A converts simulated audio signal to, sent by earphone, wearable voice processing apparatus based on wireless transmission comprises close distance radio frequency transceiver module (can adopt Bluetooth chip, carry out Up/Down Conversion process) and audio processing modules (carrying out base-band digital modulation /demodulation, D/A and A/D conversion).
5. the hearing assistance system based on wireless transmission according to claim 4, it is characterized in that audio frequency process and control module input end are connected to broadcast reception module, broadcast reception module is by local oscillator unit, in put unit, detection unit, local oscillator unit provides local oscillation signal, through carrying out Frequency mixing processing with the amplitude modulation or fm broadcast signal of input, obtain intermediate-freuqncy signal, put unit in passing through again and carry out secondary amplification, again through frequency modulation or amplitude-modulated signal detection unit, produce baseband signal, and road unit after baseband digital signal being given after being sampled by A/D audio frequency process and control module.
6. the hearing assistance system based on wireless transmission according to claim 4, it is characterized in that in Multifunctional audio process and radio transmitting device, input end connects audio array receiver module, audio array receiver module is that multiple microphone receives sound signal, adopts FPGA or dsp chip to carry out enhancing process to signal; In this audio array receiver module, use circle or planar array loudspeaker array unit, N=2-1024.
7. the hearing assistance system based on wireless transmission according to claim 4, it is characterized in that Multifunctional audio process and radio transmitting device are provided with the long-range radio-frequency transceiver module in parallel with close distance radio frequency transceiver module, long-range radio-frequency transceiver module adopts Zigbee or mobile communication module, carry out the wireless transmission between the Multifunctional audio process of many covers and radio transmitting device by the wireless communication technology of maturation, mobile communication module comprises employing GSM, CDMA, WCDMA, 4G module.
8. the hearing assistance system based on wireless transmission according to claim 4, it is characterized in that in audio frequency process and control module, clock module provides clock signal to other module, adopts high performance FPGA or dsp chip to carry out squelch, digital filtering, automatic growth control and speech enhan-cement process in audio frequency processing circuit; Adopt the controling parameters that high-performance cpu chip reception external interface module is sent here simultaneously, thus control other each module, perform the operation of various pattern, the parameter of digital filtering is also sent to cpu chip by interface module, these parameters are loaded in FPGA or DSP of audio frequency processing circuit by CPU, adjusted frequency response, the yield value of wave filter by audio frequency filtering circuit according to this value, dynamically meet everyone hearing compensation needs.
9. the hearing assistance system based on wireless transmission according to claim 4, is characterized in that audio frequency process is connected voice mutual translation module with the input end of control module.
10. the hearing assistance system based on wireless transmission according to claim 4, is characterized in that audio frequency process is connected recording playback module with control module output terminal; The output terminal of audio frequency process and control module is also provided with location and oriented module, comprises GPS outdoor positioning unit in location and oriented module.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105996329A (en) * | 2016-07-06 | 2016-10-12 | 张远海 | A smart wristband with real-time translation function |
| CN106157856A (en) * | 2016-08-10 | 2016-11-23 | 江苏巴艾特信息科技有限公司 | A kind of guide system based on ZigBee watch and method |
| CN109360549A (en) * | 2018-11-12 | 2019-02-19 | 北京搜狗科技发展有限公司 | A kind of data processing method, device and the device for data processing |
| CN109951785A (en) * | 2017-12-13 | 2019-06-28 | 奥迪康有限公司 | Hearing devices and binaural hearing system including ears noise reduction system |
| EP3506658A1 (en) * | 2017-12-29 | 2019-07-03 | Oticon A/s | A hearing device comprising a microphone adapted to be located at or in the ear canal of a user |
| CN110233636A (en) * | 2019-06-05 | 2019-09-13 | 淮阴师范学院 | A kind of ultrashort wave signals enhancement device and method based on aerial array |
| CN111586510A (en) * | 2020-04-10 | 2020-08-25 | 深圳市爱图仕影像器材有限公司 | Wireless microphone device and using method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191060A (en) * | 1995-06-07 | 1998-08-19 | 詹姆斯C·安德森 | Hearing aid with wireless remote processor |
| CN101682824A (en) * | 2007-06-13 | 2010-03-24 | 唯听助听器公司 | Hearing aid system establishing a conversation group among hearing aids used by different users |
| CN101778330A (en) * | 2009-12-30 | 2010-07-14 | 南京信息工程大学 | Mobile phone platform-based array microphone hearing aid and control method thereof |
| CN101924978A (en) * | 2009-06-15 | 2010-12-22 | 中国聋儿康复研究中心 | Auxiliary hearing aid |
| CN102462043A (en) * | 2010-11-10 | 2012-05-23 | 四川微迪数字技术有限公司 | Sunbonnet with hearing aid |
| CN102469397A (en) * | 2010-11-10 | 2012-05-23 | 四川微迪数字技术有限公司 | Hearing aid with navigation function |
| CN202565464U (en) * | 2012-05-18 | 2012-11-28 | 张泽慧 | Multifunctional hearing aid |
| CN203015115U (en) * | 2012-12-05 | 2013-06-19 | 赵瑞长 | Hearing aid having function of radio |
| CN203057517U (en) * | 2013-01-11 | 2013-07-10 | 浙江赛福实业有限公司 | Multifunctional wireless frequency modulation hearing aid |
| CN104885000A (en) * | 2012-12-28 | 2015-09-02 | Gn瑞声达A/S | Spectacle Hearing Aid System |
-
2016
- 2016-02-16 CN CN201610087231.XA patent/CN105551224A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191060A (en) * | 1995-06-07 | 1998-08-19 | 詹姆斯C·安德森 | Hearing aid with wireless remote processor |
| CN101682824A (en) * | 2007-06-13 | 2010-03-24 | 唯听助听器公司 | Hearing aid system establishing a conversation group among hearing aids used by different users |
| CN101924978A (en) * | 2009-06-15 | 2010-12-22 | 中国聋儿康复研究中心 | Auxiliary hearing aid |
| CN101778330A (en) * | 2009-12-30 | 2010-07-14 | 南京信息工程大学 | Mobile phone platform-based array microphone hearing aid and control method thereof |
| CN102462043A (en) * | 2010-11-10 | 2012-05-23 | 四川微迪数字技术有限公司 | Sunbonnet with hearing aid |
| CN102469397A (en) * | 2010-11-10 | 2012-05-23 | 四川微迪数字技术有限公司 | Hearing aid with navigation function |
| CN202565464U (en) * | 2012-05-18 | 2012-11-28 | 张泽慧 | Multifunctional hearing aid |
| CN203015115U (en) * | 2012-12-05 | 2013-06-19 | 赵瑞长 | Hearing aid having function of radio |
| CN104885000A (en) * | 2012-12-28 | 2015-09-02 | Gn瑞声达A/S | Spectacle Hearing Aid System |
| CN203057517U (en) * | 2013-01-11 | 2013-07-10 | 浙江赛福实业有限公司 | Multifunctional wireless frequency modulation hearing aid |
Non-Patent Citations (3)
| Title |
|---|
| 夏桂书: "《电子技术工艺实训教程》", 31 January 2014 * |
| 张小飞等: "《阵列信号处理的理论与应用》", 30 June 2013 * |
| 李明亮等: "《物联网落地有声系列丛书 例说ZigBee》", 31 July 2013 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105996329A (en) * | 2016-07-06 | 2016-10-12 | 张远海 | A smart wristband with real-time translation function |
| CN106157856A (en) * | 2016-08-10 | 2016-11-23 | 江苏巴艾特信息科技有限公司 | A kind of guide system based on ZigBee watch and method |
| CN109951785B (en) * | 2017-12-13 | 2022-07-15 | 奥迪康有限公司 | Hearing device and binaural hearing system comprising a binaural noise reduction system |
| CN109951785A (en) * | 2017-12-13 | 2019-06-28 | 奥迪康有限公司 | Hearing devices and binaural hearing system including ears noise reduction system |
| EP3506658A1 (en) * | 2017-12-29 | 2019-07-03 | Oticon A/s | A hearing device comprising a microphone adapted to be located at or in the ear canal of a user |
| US10771905B2 (en) | 2017-12-29 | 2020-09-08 | Oticon A/S | Hearing device comprising a microphone adapted to be located at or in the ear canal of a user |
| US11510017B2 (en) | 2017-12-29 | 2022-11-22 | Oticon A/S | Hearing device comprising a microphone adapted to be located at or in the ear canal of a user |
| US11729557B2 (en) | 2017-12-29 | 2023-08-15 | Oticon A/S | Hearing device comprising a microphone adapted to be located at or in the ear canal of a user |
| CN109360549A (en) * | 2018-11-12 | 2019-02-19 | 北京搜狗科技发展有限公司 | A kind of data processing method, device and the device for data processing |
| CN109360549B (en) * | 2018-11-12 | 2023-07-18 | 北京搜狗科技发展有限公司 | Data processing method, wearable device and device for data processing |
| CN110233636A (en) * | 2019-06-05 | 2019-09-13 | 淮阴师范学院 | A kind of ultrashort wave signals enhancement device and method based on aerial array |
| CN111586510A (en) * | 2020-04-10 | 2020-08-25 | 深圳市爱图仕影像器材有限公司 | Wireless microphone device and using method thereof |
| CN111586510B (en) * | 2020-04-10 | 2021-07-23 | 深圳市爱图仕影像器材有限公司 | Wireless microphone device and using method thereof |
| US12126951B2 (en) | 2020-04-10 | 2024-10-22 | Aputure Imaging Industries Co., Ltd. | Wireless microphone device and use method therefor |
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