CN104717593A

CN104717593A - Learning hearing aid

Info

Publication number: CN104717593A
Application number: CN201410777867.8A
Authority: CN
Inventors: 安德鲁·伯克·迪特贝尔纳; 奥尔贝茨·德弗里斯; 格特·霍伊·雅各布森
Original assignee: GN Resound AS
Current assignee: GN Hearing AS
Priority date: 2013-12-13
Filing date: 2014-12-15
Publication date: 2015-06-17
Anticipated expiration: 2034-12-15
Also published as: CN104717593B; JP2015130659A; JP6190351B2

Abstract

A new hearing aid system is provided that includes geographical position and user feedback in determining the category of the sound environment for automatic adjustment of signal processing parameters.

Description

Position study hearing aids

Technical field

New hearing aid device system is provided with automatic selection and the adjustment of the improvement of the hearing aid signal process parameter in response to acoustic environment, geographical position and user feedback.Particularly, the feature of new hearing aid device system is the optimization of the hearing aid signal process parameter of inducing based on geographical position and Bayes's increment preference.

Background technology

Traditional hearing aid now generally includes digital signal processor (DSP), for the treatment of the sound received by hearing aids, to compensate the hearing loss of user.As is well known in the art, the process of DSP is controlled by the signal processing algorithm of the many kinds of parameters had for regulating the actual signal process be performed, such as, the gain in each frequency channel of multichannel hearing aids, the corner frequency of frequency selectivity filtering algorithm or slope, the flex point of control compressor algorithm and the parameter of compression ratio.

The flexibility of DSP is normally used for providing multiple algorithms of different with multi-signal process parameter.Such as, many algorithms can be provided for noise suppressed, that is, the undesirably decay of signal and the amplification of desired signal.Desired signal is voice or music normally, and undesirably signal can be background sound, restaurant's brouhaha, music (when voice are desired signals), traffic noise etc.

Generally include algorithms of different and parameter, to provide the sound quality of the comfortable and intelligible regeneration in different types of acoustic environment, such as, voice, unclean voice, restaurant's brouhaha, music, traffic noise etc.

The audio signal obtained from alternative sounds environment can have very different characteristics, such as, and average and maximum sound pressure level (SPL) and/or frequency content.Thus, in the hearing aids with DSP, the acoustic environment of each kind can be associated with the signal specific Processing Algorithm of the specific settings with signal processing parameter, and the acoustic environment that this signal specific Processing Algorithm is kind in question provides the sound after the process of optimum signal quality.

Thus the hearing aids based on DSP is now provided with multiple unlike signal Processing Algorithm usually, wherein, each algorithm is customized for acoustic environment and/or the particular user preferences of particular types.Signal processing parameter was determined during the initial adaptation phase usually in the office of allocator, and transfer to nonvolatile storage by activating Expectation Algorithm and being arranged on by algorithm parameter in the nonvolatile storage of hearing aids and/or by Expectation Algorithm and algorithm parameter setting, be programmed in hearing aids.

Some known hearing aidss can by the acoustic environment of user one of acoustic environment being automatically categorized as multiple kind, such as, voice, unclean voice, restaurant's brouhaha, music, traffic noise etc.

The classification results obtained can be utilized in hearing aids, automatically to select the signal transacting characteristic of hearing aids, such as, automatically switches to the most suitable signal processing algorithm in question environment kind and parameter.Such hearing aids can automatically for each hearing aid user keeps optimum sound sound quality and/or speech intelligibility in muli-sounds environment.

US 2007/0140512A1 and WO 01/76321 discloses the example of classifier methods.

Summary of the invention

New hearing aid device system is provided with and comprises the geographical position of new hearing aid device system and the hearing aids of user feedback when it determines the kind of acoustic environment.

Acoustic environment in specific geographical area remains on identical type usually along with the time.Thus combining geographic location will improve the determination of kind when determining the kind of current sound environment, that is, the determination of kind can be made faster, and/or the determination of kind can be made to have the certainty of increase.

A kind of new hearing aid device system is provided, comprises

A () first hearing aids, has

First microphone, for the voice signal received in response to the described first microphone place in acoustic environment, provides the first audio input signal,

First processor, it is configured to process the first audio input signal according to signal processing algorithm F (Θ), and to generate the first hearing compensation audio signal, wherein, Θ is the set of signal processing parameter, and

First output transducer, for based on the first hearing compensation audio signal, provides the first sound sense signal,

B () position detector, is arranged to the geographical position determining hearing aid device system,

C () first sound environment detector, is arranged to

Based on the geographical position of the voice signal received by hearing aid device system and determined hearing aid device system, determine the kind of the acoustic environment around hearing aid device system, and

Based on the kind of the acoustic environment determined by the first sound environment detector, export first and be supplied to first processor, to select first value of the set Θ of signal processing parameter,

D () user interface, for the adjustment allowing the user of hearing aid device system to make at least one signal processing parameter θ ∈ Θ, and wherein

First sound environment detector is arranged to

Record the adjustment of at least one signal processing parameter θ ∈ Θ made by the user of hearing aid device system, and

Also based on adjustment, export first and be supplied to first processor.

Based on the Bayes's increment preference induction regulated, can export first and be supplied to first processor.

Hearing aid device system has the storehouse of signal processing algorithm F (Θ), wherein, Θ is algorithm parameter space, comprise the parameter of the selection controlled for the algorithm performed, such as, noise suppression algorithm can be selected for and perform in noise circumstance, and can not be selected for and perform in quiet environment.

Position detector comprises at least one in gps receiver, calendar system, WIFI network interface, mobile telephone network interface, for determining the geographical position of hearing aid device system and determining the speed of hearing aid device system alternatively.

First sound environment detector can be arranged to based on the geographical position of the voice signal received by hearing aid device system, determined hearing aid device system and from the kind being determined the acoustic environment around hearing aid device system by least one parameter selected the following group formed: the time in date, one day, the speed of hearing aid device system and the signal strength signal intensity of signal received by gps receiver.

In specific geographic position (such as, city square) acoustic environment at place can change with repetitive mode in a similar manner year after year in a similar manner in 1 year and/or day by day in one day, such as, repeat change due to traffic, number etc., and such change can be considered by allowing sound environment detector comprise time in date and/or one day when determining the kind of acoustic environment.

When hearing aid device system is in building, the signal strength signal intensity of the signal received by gps receiver significantly reduces, and thus, the information about gps signal intensity can be used by sound environment detector, to determine hearing aid device system whether in building.

The information about translational speed such as determined by gps receiver can be used by sound environment detector, to determine that hearing aid device system is in means of transportation, such as, in automobile.

Hearing aids can for being configured to any type be worn on the head, and with first shift position and orientation, such as, the hearing aidss such as BTE, RIE, ITE, ITC, CIC.

Run through the disclosure, term gps receiver is used to the receiver of the satellite-signal of specifying any satellite navigation system, it provides on earth or the position of neighbouring any position and temporal information, such as, safeguarded by U.S. government and can gps receiver be utilized freely to access by anyone and usually be designated the satellite navigation system of " GPS-system ", Russia's GLONASS (Global Navigation Satellite System) (GLONASS), European Union's Galileo navigation system, China's the Big Dipper navigation system, India's area navigation 20 satellite system etc., and comprise enhancing GPS, such as, StarFire, Omnistar, India GPS auxiliary type is track enhanced navigation system (GAGAN) geostationary, European Geostationary navigation overlay service (EGNOS), Japan's multisatellite strengthens system (MSAS) etc.In enhancing GPS, based on the little change of the signal of the network measure gps satellite of the reference base station on ground, correct message and be sent to gps system satellite, correction information broadcast is returned the earth by it, wherein, strengthening the enable receiver of GPS uses correction to improve accuracy when calculating their position.International Civil Aviation Organization (ICAO) claims the system of the type to be satellite-based enhancing system (SBAS).

Hearing aids may further include one or more orientation sensor, such as, gyroscope, such as, MEMS gyro instrument, inclination sensor, ball switch etc., be arranged to the signal of the orientation of the head of the user exported for determining wear hearing aid, such as, head yaw angle rotate, the head angle of pitch rotate, head roll angle rotate or its combine in one or more, such as, inclination angle or inclination.

Run through the disclosure, calendar system provides the system having and can pass through the electronic version of the calendar of the data of the access to netwoks of such as the Internet to user.Well-known calendar system comprises such as Mozilla Sunbird, Windows Live Calendar, Google Calendar, has the Microsoft Outlook etc. of swap server.

Run through the disclosure, word " inclination " represents when user stands or sit down, with the angular displacement of head normal upright position.Thus in the resting position of the head of the people standing or sit down, inclination is 0 °, and the resting position of head the people lain down, inclination is 90 °.

First sound environment detector can be arranged to provides the first output, and to select first value of the set Θ of signal processing parameter based on by account orientation, this use account orientation determines based on the output signal of one or more orientation sensor.Such as, lie down to doze off if position is changed into from standing by user, then environmental detector can make the first signal processor correspondingly switch (one or more) signal processing algorithm, and such as, the first hearing aids can automatically be weakened.

Alternatively, the output signal of one or more orientation sensor can be imported into another part of hearing aid device system, such as, first processor, be arranged to the output of output signal based on one or more orientation sensor and the first sound environment detector, select first value of the set Θ of signal processing parameter.

Signal processing algorithm can comprise multiple subalgorithm or subprogram, the particular child task in each executive signal Processing Algorithm.As an example, signal processing algorithm can comprise unlike signal process subprogram, such as, and frequency selectivity filtering, list or multichannel compression, self adaptation feedback canceller, speech detection and noise decrease etc.

And multiple different choice of signal processing algorithm, subalgorithm or subprogram can be divided into groups together, to form two, three, four, five or more different preset hearing programmes, user can select in-between according to his/her preference.

Signal processing algorithm will have one or more related algorithm parameter.These algorithm parameters can be divided into the set of multiple comparatively small parameter usually, wherein, and the specific part of each such algorithm parameter set and signal processing algorithm or relevant with particular child program.These parameter sets control the particular characteristics of their corresponding algorithms or subprogram, such as, and the adaptation rate of the compression threshold of the corner frequency of filter and slope, compressor algorithm and ratio, self adaptation feedback canceller algorithm and detectable signal characteristic etc.

Corresponding signal Processing Algorithm or subprogram the term of execution, the value of algorithm parameter preferably in intermediate storage in the volatile data storage district of the processing unit in such as data RAM district.The initial value of algorithm parameter is stored in the nonvolatile storage of such as EEPROM/ flash memory area or battery back up RAM memory block, to allow these algorithm parameters, disconnected period is kept in the supply, and interruption is usually removed by the user of the battery of hearing aids or replaced or the manipulation of ON/OFF switch causes.

The position detector such as comprising gps receiver can be included in the first hearing aids, for as user, hearing aids is worn on the head its desired operation position time, in a well-known manner, based on satellite-signal, determine the geographical position of user.Thus, the current location of user based on the data from the first hearing aids, can be provided to such as the first sound environment detector with possibility orientation.

Sound environment detector can be arranged to and store on the remote server by hearing aid parameter together with GPS-data, such as, on the remote server passing through internet access, can together with the hearing loss of user (hearing profile), such as, for the backup set at the hearing aids of multiple GPS location, and/or set for the hearing aids being shared in multiple GPS location place with other hearing aid users.

Thus sound environment detector can be arranged to the hearing aids setting regaining another user made at current GPS location place.Hearing aids setting can be grouped according to hearing loss similitude and/or age and/or race and/or ear size etc., and the setting of the hearing aids of another user can be selected according to the user belonging to such group.

First sound environment detector can be included in the first hearing aids, the Signal transmissions between other circuit being convenient to sound environment detector and hearing aids thus.

Alternatively, the position detector such as comprising gps receiver can be included in the handheld device with hearing-aid interconnection.

Handheld device can be the smart phone of gps receiver, such as Iphone, Android phone, Windows phone etc., such as, have gps receiver and calendar system etc., with hearing-aid interconnection.

First sound environment detector can comprise in the handheld device.Compare with electric power with limited computational resource available in hearing aids, the first sound environment detector can benefit from usually in the handheld device can larger computational resource and power supply.

Handheld device can hold user interface, and its user being arranged to the hearing aid device system such as comprising the first hearing aids controls.

Handheld device can have the interface for being connected with the wide area network of such as the Internet.

Handheld device can by the mobile telephone network of such as GSM, IS-95, UMTS, CDMA-2000 etc., access wide area network.

By the wide area network of such as the Internet, handheld device can access the electronic time management and means of communication that are used by user, for communication and for storing and user-dependent time management and the communication information.Instrument and the information stored are usually located on the remote server by wide-area network access.

Hearing aids can comprise data-interface, and it is for transferring to other parts of the hearing aid device system comprising the first hearing aids from handheld device by control signal.

Hearing aids can comprise data-interface, and it is for transferring to handheld device by the output of one or more orientation sensor.

Data-interface can be the wireline interface of such as USB interface or the wave point of such as blue tooth interface, such as, and the low-yield interface of bluetooth.

Hearing aids can comprise audio interface, for from handheld device and other possible audio signal source received audio signals.

Audio interface can be wireline interface or wave point.Data-interface and audio interface can be combined into individual interface, such as, and USB interface, blue tooth interface etc.

Hearing aids can such as have: the low-yield data-interface of bluetooth, and it is for switching sensors between hearing aids and handheld device and control signal; And wireline audio interface, for exchange of audio signals between hearing aids and handheld device.

First sound environment detector can comprise fisrt feature extractor, and it is for determining the characterisitic parameter of the first audio input signal.

Feature extractor can determine the characterisitic parameter of audio input signal, such as, and average and maximum sound pressure level (SPL), signal power, modal data and other well-known features.Modal data can comprise discrete Fourier transform coefficient, LPC parameters, cepstrum parameter or respective differences and divide cepstrum parameter.

Characterisitic parameter can be outputted to first environment grader by feature extractor, and it is arranged to based on determined characterisitic parameter and geographical position, determines the kind of acoustic environment.

First environment grader is arranged to and the kind of acoustic environment is defined as multiple acoustic environment type or kind, such as, and voice, unclean voice, restaurant's brouhaha, music, traffic noise etc.Classification process can utilize simple Nearest Neighbor Search, neural net, hidden Markov model system or can another system of pattern identification.The output of environment classification can be comprise single environment kind " firmly " classification or indicate acoustic environment to belong to the set of the probability of the probability of corresponding kind.Other outputs also can be applied.

The kind of determined acoustic environment can be outputted to the first Parameter Mapping by first environment grader, and this first Parameter Mapping is arranged to and is provided for the output of selection suitable (one or more) first signal processing algorithm and the parameter for being performed by first processor.

In this way, the classification results obtained can be utilized in hearing aids, automatically to select the signal transacting characteristic of hearing aids, such as, automatically switches to the most suitable algorithm of the acoustic environment for discussing.Such hearing aids can for each hearing aid user keeps optimum sound sound quality and/or speech intelligibility in muli-sounds environment.

As an example, the grade not only relying on background noise may be expected, and rely on the further characteristics of signals of this background noise, switch between omni-directional and directional microphone initialize program.When the user of hearing aids when there is background noise with another personal communication, can to identify and the type of background noise of classifying is useful.Can omni-directional be selected when noise is traffic noise to operate, clearly hear close traffic to allow the orientation independent of user and its arrival ground.On the other hand, if background noise is classified as unclean noise, directive property hearing programmes can be selected, during talking, hear the targeted voice signal of the signal to noise ratio (SNR) with improvement to allow user.

Apply hidden Markov model such as can obtain such as microphone signal detailed characteristics for the analysis of microphone signal and classification.Hidden Markov model can change, to the modeling of Stochastic sum non-stationary signal according to short and long time domain.

Sound environment detector can be arranged to determines kind together record by the geographical position determined by position detector and the institute of the acoustic environment in geographical location.Record can perform with regular time interval and/or by the specific geographic distance between record, and/or by specific events trigger, such as, the conversion of the kind of acoustic environment, the change of signal transacting, such as, the change of signal handler, the change of signal processing parameter etc.

When hearing aid device system be positioned at the geographical position of the precedence record of the kind from acoustic environment threshold distance and/or when having the region in precedence record geographical position of identical recordings of kind of acoustic environment, sound environment detector can be arranged to increase current sound environment have with or the probability of identical type that recorded close to current geographic position, or determine that current sound environment has the kind of the acoustic environment recorded.

First sound environment detector can be arranged to by consider from determined geographical positional distance threshold value, the probability of the generation of the precedence record kind of acoustic environment, determine the kind of acoustic environment.

Threshold distance can be determined in advance, such as, the uncertainty in the geographical position of position detector is determined in reflection, such as, be less than or equal to the uncertainty of position detector, or the average distance be less than or equal between the geographical position of acoustic environment and the record of kind, or the characteristic dimension of notable feature at current geographic position place being less than such as sports field, master station, City Hall, arenas etc.Threshold distance can also be suitable for current environment, such as, cause the relatively little threshold distance in the region of such as urban area, this region has short distance between the record of different types of acoustic environment, and cause the relatively large threshold distance in the region of such as open range, this region has large distance between the record of different types of acoustic environment.

The user interface of hearing aid device system can be configured to the acoustic environment of some kinds is associated with corresponding geographic area.

When do not have use gps signal, the address of the WIFI network that position detector can be able to be connected to based on hearing aid device system, or based on from the signal of multiple GSM-transmitter receipt well-known field of mobile telephony by triangulation, the geographical position of hearing aid device system being determined.And position detector can be arranged to the calendar system of calling party, to obtain the information of the expectation whereabouts about user, such as, meeting room, office, buffet, restaurant, family etc., and to comprise this information when determining geographical position.Thus the information from the calendar system of user can replace or supplement the information about the geographical position (such as passed through gps receiver) by other means and determine.

Such as, (one or more) hearing aids of hearing aid device system automatically can be switched to offline mode by sound environment detector, namely, when position detector detects that user aboard, (one or more) wireless device of (one or more) hearing aids is closed.

And when user is in the building of such as high-rise, gps signal may not exist or very weak, makes geographical position not determine by gps receiver.Then, the information of the whereabouts about user from calendar system can be used, information about geographical position is provided, or the information from calendar system can supplement the information about geographical position, such as, the instruction of particular conference room can provide about the information on which layer of hearing aid device system in high-rise.Information about height cannot obtain from gps receiver usually.

When geographical position can not be determined in addition, such as, when GPS-receiver can not provide geographical position, position detector automatically can use the information from calendar system.When not such as from the Information Availability about geographical position of gps receiver and calendar system in position detector, sound environment detector can based on received voice signal, in a conventional manner to sound environment classification; Or hearing aids can be configured to such as previously to operate during the adaptive phase or under the pattern selected by user when the situation occurs.

User may be unsatisfied with the automatic selection of parameter value, and the adjustment of user interface executive signal process parameter can be used, such as, the current selection of signal processing algorithm can be changed into another kind of signal processing algorithm by user, such as, user can switch to omni-directional signal Processing Algorithm from directional signal Processing Algorithm.

The user that sound environment detector is arranged to along with time binding signal process parameter values regulates.

Sound environment detector is arranged to the storehouse utilizing signal processing algorithm F (Θ), automatically regulate at least one signal processing parameter θ ∈ Θ in hearing aid device system, wherein, Θ is algorithm parameter space, comprise the parameter of the selection controlled for the algorithm performed, such as, noise suppression algorithm is selected for and performs in noise circumstance, and is not selected for and performs in quiet environment.

Sound environment detector is arranged to

Record the adjustment made by the user of hearing aid device system, and

Based on the induction of (Bayes) increment preference, in response to recorded adjustment, revise the automatic adjustment of at least one signal processing parameter θ ∈ Θ, when making same sound environment to be detected, perform amended automatic adjustment next time.

Bayesian inference relates to collection and means the evidence consistent or inconsistent with given hypothesis.The confidence level supposed changes along with the accumulation of evidence.By enough evidences, it becomes very high or very low usually.

Before evidence is observed, Bayesian inference uses the Numerical value of the confidence level of hypothesis, and after evidence is observed, calculates the Numerical value of the confidence level of hypothesis.

Bayes' theorem regulates the probability of given fresh evidence in the following manner:

P (H_{0} | E) = \frac{P (E | H_{0}) P (H_{0})}{P (E)}

Wherein

H ₀represent be called as fresh evidence E become available before infer null hypothesis.

P (H ₀) be called as H ₀prior probability,

P (E|H ₀) be called as supposition hypothesis H ₀be true, see the conditional probability of evidence E.When being represented as the H of given E ₀function time, it is also called as likelihood function, and

P (E) is called as the marginal probability of E: the probability witnessing fresh evidence E under all mutual exclusion hypothesis.

It can be calculated as the summation of the full probability of mutual exclusion hypothesis and the product of corresponding conditions probability: Σ P (E|H _i) P (H _i).

P (H ₀| E) be called as the H of given E ₀posterior probability.

Factor P (E|H ₀)/P (E) represents the impact of evidence on the trust of hypothesis.If when under consideration is assumed to be true time, evidence will probably be observed, then this factor will be very large.The prior probability of hypothesis is multiplied by this factor and will obtains the result of the large posterior probability of the hypothesis of given evidence.Thus under Bayesian inference, Bayes' theorem is measured fresh evidence and will be changed the trust of how many hypothesis.

Obtain the more information about Bayes' theorem and Bayesian inference, c.f.: " InformationTheory, Inference, and Learning Algorithms " by David J.C.Mackay, Cambridge University Press, 2003.

Bayes method for probability theory to be made peace correlation theory for one of reasoning under uncertainty.Unknown and usually inconsistent owing to feeding back (part) from the consciousness of listener, such statistical method needs to process these uncertainties.Below, to the bayes method of hearing aids process and particularly Bayes's increment preference abductive approach will be discussed in more detail.

The expectation making it possible to effectively to learn about the signal processing parameter of acoustic environment of the sound environment detector of new hearing aid device system regulates and individual, change in time, non-linear and random rectification user regulate between complex relationship.Thus sound environment detector can be considered to learn sound environment detector.

When each user makes adjustment, sound environment detector can upgrade at least one signal processing parameter θ ∈ Θ.Alternatively, renewal can be performed according to specific criteria, and such as, user has made the adjustment of pre-determined number, makes only significantly to regulate to cause upgrading.

Sometimes, during the operation of equipment, the quality of user to received signal is unsatisfied with, and thus is regulated by (one or more) of user interface execution hearing aid device system.Learning objective is absorbed lentamente in model parameter θ by normal mode by sound environment detector.Finally, process and will the user reducing quantity be caused to handle.

Only when available about the knowledge of user preference, execution parameter upgrades.Time during the normal running of user interface at equipment by manipulation, user may be satisfied to transmitted signal quality, but this is uncertain.After all, user may not have wearable device.But, when user starts to handle user interface, suppose that user was unsatisfied with in this moment.The starting to be represented as of manipulation stage of user interface does not agree to the moment.When user handles user interface, user may still search for better adjustment.Just in time after user stops handling user interface, the next study moment occurs.Now, suppose that user finds satisfied adjustment; And this is called as agrees to the moment.Do not agree to and agree to that the moment identifies situation for collecting passive and active directive data respectively.

Below, a kind of illustrative methods being suitable for user preference is disclosed.The method is based on the induction of Bayes's increment preference, but additive method is also passable.Suppose not agree to the moment in kth and agree to that the moment adjustable signal processing parameter at place is set to θ respectively _kdand θ _kc.And, suppose that the output of the ambient sound grader during kth user's manipulation stage is at C _kplace roughly keeps constant.

Obviously, at environmental condition C _kunder, user is compared to θ _kdpreferred θ _kc(by (end user) decision-making d _k=θ _kc> θ _kdrepresent).Reach the set of all user's decision-makings of a kth decision-making by D _k-1={ d ₁, d ₂..., d _k-1represent.Then, Bayesian updating scheme is used to absorb kth time observation.Parameter Mapping from type to hearing aid parameter is represented by probability function p (θ | C, ω), and wherein, ω represents the parameter for Parameter Mapping 40.

Then, the Bayesian updating for the Parameter Mapping of the manipulation based on a kth user is provided by following

p(ω|C,D _k)＝p(d _k|C,ω)×p(ω|C,D _k-1)/p(C)

In Chu and Gharamani (Preference Learning with Gaussian Processes, 22 ^ndint ' l conf on Machine Learning, 2005) in, this Bayesian updating equation is answered in detail, for the Parameter Mapping 40 based on Gauss's process.

New hearing aid device system can be the ears hearing aid device system with two hearing aidss, an auris dextra for user and a left ear for user.

Thus new hearing aid device system can comprise second hearing aids with second microphone, in response to the voice signal received at second microphone place, provide the second audio input signal,

Second processor, it is configured to process the second audio input signal according to secondary signal Processing Algorithm F (Θ), to generate the second hearing compensation audio signal, and

Second output transducer, for providing the second sound sense signal based on the second hearing compensation audio signal.

Because usual binaural listening loss is for two ear differences, be different from by except the fact of the hearing loss of the hearing loss of the first hearing aid compensation except the second hearing aids is conditioned to compensate usually, the circuit of the second hearing aids is preferably identical with the circuit of the first hearing aids.

First sound environment detector can be arranged to the geographical position based on the first and second audio input signals and hearing aid device system, the kind of the acoustic environment around the user determining hearing aid device system.

First sound environment detector can be arranged to by second export be supplied to the second processor, for select for by second processor perform secondary signal Processing Algorithm and parameter F (Θ), to generate the second hearing compensation audio signal.

Alternatively, second hearing aids can comprise the second sound environment detector being similar to the first sound environment detector, and the geographical position be arranged to based on the first and second audio input signals and hearing aid device system, determine the kind of acoustic environment, and for based on the kind determined by the second sound environment detector, export second and be supplied to the second processor, to select second value of the set Θ of signal processing parameter.

In ears hearing aid device system, the signal processing algorithm of the first and second signal processors is selected to be very important with coordination mode.Because acoustic environment characteristic is obviously different at two ear places of user, what usually occur in the kind of the acoustic environment at two ear places of user independently determines difference, and this may cause the less desirable unlike signal process of the sound in hearing aids.Thus, preferably, the signal processing algorithm of the first and second processors is selected based on identical signal, such as, the voice signal received at handheld device place or the voice signal received at Zuo Erchu and the voice signal received at auris dextra place or the voice signal received at handheld device place and the voice signal received at Zuo Erchu and the combination etc. of voice signal received at auris dextra place.

As the first sound environment detector, the second sound environment detector can comprise the second feature extractor of the characterisitic parameter for determining the second audio input signal.

Characterisitic parameter can be outputted to second environment grader by second feature extractor, for based on determined characterisitic parameter and geographical position, determines the kind of acoustic environment.

The kind of acoustic environment can be outputted to the second Parameter Mapping by second environment grader, and it is arranged to the output of the secondary signal Processing Algorithm being provided for selection second processor.

As previously mentioned, the method in new hearing aid device system has the ability of the change of the user preference absorbed along with the time changes and/or the typical sound environment experienced by user.The personalization of hearing aids can be performed between the normal operating period of hearing aids.These advantages regulate acquisition by the user absorbing the hearing aids in the parameter of hearing aids process.Along with the time, the method causes the less user during the cycle not changing user preference to handle.And method is reliable and stable for inconsistent user behavior.

User preference for signal processing parameter to be made peace relevant mode and according to the theory for reasoning under uncertainty, being induced between the normal operating period with one.

New hearing aid device system can the expectation of learning signal process parameter regulate and individual, change in time, non-linear and/or random rectification user regulate between complex relationship.

New hearing aid device system can distinguish the different user preference caused by alternative sounds environment.Thus, signal processing parameter can be automatically adjusted according to the consciousness of the user of the most probable setting parameter for actual sound environment.

Medium for store information/data can adopt a lot of form, includes but not limited to non-volatile media, Volatile media and transmission medium.Non-volatile media can be such as the memory device of optical storage devices, magnetic memory device or other types.Non-volatile media can be considered to an example of non-transitory medium.Volatile media comprises dynamic memory, such as, and main storage.Volatile media can be considered to another example of non-transitory medium.Transmission medium comprises cable, electric wire and optical fiber.Transmission medium can also adopt the form of sound or light wave, such as, generate during radio wave and infrared data communication those.

Signal transacting in new hearing aid device system can be performed by specialized hardware or can be performed in signal processor, or is performed in the combination of specialized hardware and one or more signal processor.

As used herein, the software that is intended to refer to the combination of CPU related entities, hardware, hardware and software, software or is performed such as term " processor ", " signal processor ", " controller ", " system ".

Such as, " processor ", " signal processor ", " controller ", " system " etc. can be, but not limited to be run on a processor process, processor, object, executable file, the thread of execution and/or program.

By way of example, the application program and hardware processor run on a processor specified in term " processor ", " signal processor ", " controller ", " system " etc.The thread that one or more " processor ", " signal processor ", " controller ", " system " etc. or its any combination can be positioned at process and/or perform, and one or more " processor ", " signal processor ", " controller ", " system " etc. or its any combination can be localised on a hardware processor, can be combined with other hardware circuits, and/or be distributed between two or more hardware processor, can be combined with other hardware circuits.

And processor (or similar terms) can be can any assembly of executive signal process or any combination of assembly.Such as, signal processor can be asic processor, FPGA processor, general processor, microprocessor, circuit unit or integrated circuit.

A kind of hearing aid device system comprises: (a) first hearing aids, there is the first microphone, for the voice signal received in response to the first microphone place in acoustic environment, first audio input signal is provided, first processor, it is configured to process the first audio input signal according to signal processing algorithm F (Θ), to generate the first hearing compensation audio signal, wherein, Θ is the set of signal processing parameter, and first output transducer, for based on the first hearing compensation audio signal, provide the first sound sense signal; B () position detector, is arranged to the geographical position determining hearing aid device system; (c) first sound environment detector, be arranged to the geographical position based on the voice signal received by hearing aid device system and determined hearing aid device system, determine the kind of the acoustic environment around hearing aid device system, and based on the kind determined by the first sound environment detector, export first and be supplied to first processor, to select first value of the set Θ of signal processing parameter; D () user interface, for the adjustment allowing the user of hearing aids to make at least one signal processing parameter θ ∈ Θ; And (e) non-transitory medium, for recording the adjustment of at least one signal processing parameter θ ∈ Θ made by the user of hearing aids; Wherein, the first sound environment detector is arranged to also based on adjustment, exports be supplied to first processor by first.

Alternatively, regulate and induce based on Bayes's increment preference.

Alternatively, position detector comprises gps receiver.

Alternatively, the first sound environment detector is arranged to based on the geographical position of the voice signal received by hearing aid device system, determined hearing aid device system and from the kind being determined the acoustic environment around hearing aid device system by least one parameter selected the following group formed: the time in date, one day, the speed of hearing aid device system and the signal strength signal intensity of signal received by gps receiver.

Alternatively, hearing aid device system comprises further: non-transitory medium, for geographical position that will be determined by position detector together with the type records of the acoustic environment in this geographical location.

Alternatively, the first sound environment detector is arranged to the probability of the generation of the acoustic environment kind by considering the precedence record in the distance threshold from determined geographical position, determines the kind of acoustic environment.

Alternatively, hearing aid device system comprises further: non-transitory medium, for storing specific sound environment kind and corresponding geographic area.

Alternatively, position detector is arranged to the calendar system of automatically calling party, to obtain the information about the position of user, and in addition when the geographical position of hearing aid device system be can not determine by position detector, based on the information of the position about user, determine the geographical position of hearing aid device system.

Alternatively, the first sound environment detector is arranged to when position detector detects that user aboard, and the first hearing aids of hearing aid device system is automatically switched to offline mode.

Alternatively, first hearing aids comprises: at least one orientation sensor, be arranged to when the first hearing aids is worn over its desired operation position by user, the information of the orientation of the head about user is provided, and the Information Selection first that wherein, the first hearing aids is arranged to based on the orientation of the head about user is worth.

Alternatively, position detector is a part for the first hearing aids.

Alternatively, hearing aid device system comprises further: handheld device, and itself and the first hearing aids can couple communicatedly, this handheld device accommodated position detector.

Alternatively, handheld device also holds the first sound environment detector.

Alternatively, handheld device comprises user interface.

Alternatively, the first hearing aids holds the first sound environment detector.

Alternatively, hearing aid device system comprises further: the second hearing aids, there is second microphone, in response to the voice signal received at second microphone place, provide the second audio input signal, second processor, be configured to process the second audio input signal according to signal processing algorithm F (Θ), to generate the second hearing compensation audio signal, and the second output transducer, for based on the second hearing compensation audio signal, provide the second sound sense signal; Wherein, the first sound environment detector is arranged to the geographical position based on the first and second audio input signals and hearing aid device system, determines the kind of acoustic environment.

Alternatively, the first sound environment detector is arranged to provides the second output, to select the second value of the set of signal processing parameter.

Alternatively, second hearing aids comprises: the second sound environment detector, be arranged to the geographical position based on the first and second audio input signals and hearing aid device system, determine the kind of acoustic environment, and based on the kind determined by the second sound environment detector, export second and be supplied to the second processor, to select second value of the set Θ of signal processing parameter.

Accompanying drawing explanation

Accompanying drawing illustrates design and the effectiveness of embodiment, and wherein, like is by common reference numerals reference.These figure must not draw in proportion.How to obtain above and other advantage and target to understand better, will the particularly explanation of the embodiment shown in accompanying drawing be presented on.These accompanying drawings only illustrate exemplary embodiments, and thus are not considered to limit its scope.

Fig. 1 illustrates the new hearing aid device system with single hearing aids and handheld device, and this single hearing aids has orientation sensor, and this handheld device has gps receiver, sound environment detector and user interface,

Fig. 2 illustrates the new hearing aid device system with single hearing aids and handheld device, and this single hearing aids has orientation sensor, sound environment detector, and this handheld device has gps receiver and user interface,

Fig. 3 illustrates the new hearing aid device system with two hearing aidss and handheld device, and these two hearing aidss have orientation sensor, sound environment detector, and this handheld device has gps receiver and user interface, and

Fig. 4 illustrates the new hearing aid device system with two hearing aidss and handheld device, and these two hearing aidss have orientation sensor, and this handheld device has sound environment detector, gps receiver and user interface.

Embodiment

After this various exemplary embodiment is described with reference to the drawings.It should be noted that accompanying drawing not to scale (NTS) is drawn, and the element of similar structures or function runs through accompanying drawing is represented by like reference numerals.Should also be noted that accompanying drawing is only intended to be convenient to the explanation of embodiment.They be not intended to as invention required for protection elaborate or as the restriction to scope of invention required for protection.In addition, illustrated embodiment does not need to have shown all aspects or advantage.The aspect described in conjunction with specific embodiment or advantage must not be limited to this embodiment, even and if be not illustrated like that or clearly do not describe like that, also can realize in any other embodiment.

After this describe new hearing aid device system more completely with reference to accompanying drawing, wherein, polytype new hearing aid device system is shown.New hearing aid device system multi-formly can be specific with unshowned in accompanying drawing, and should not be construed as limited to embodiment set forth herein and example.

Like reference numerals represents the like in accompanying drawing.

Fig. 1 schematically shows the new hearing aid device system 10 with single first hearing aids 12 and handheld device 30, and this single first hearing aids 12 has orientation sensor 44, and this handheld device 30 has gps receiver 48, sound environment detector 14 and user interface 45.

First hearing aids 12 can wear overhead any type for being configured to, such as, and the hearing aidss such as BTE, RIE, ITE, ITC, CIC.

First hearing aids 12 comprise be connected to corresponding A/D converter (not shown) first before microphone 18 after microphone 16 and first, for the voice signal received in response to microphone 16,18 place in the acoustic environment around the user of hearing aid device system 10, provide respective digital input signal 20,22.Digital input signals 20,22 is imported into hearing loss processor 24, and it is configured to process digital input signals 20,22 according to signal processing algorithm F (Θ), to generate hearing compensation output signal 26.Hearing compensation output signal 26 is routed to D/A converter (not shown) and output transducer 28, for hearing compensation output signal 26 is converted to sound sense signal.

New hearing aid device system 10 comprises further and holds the handheld device 30 of sound environment detector 14, such as, smart phone, for determine hearing aid device system 10 user around the kind of acoustic environment.Determine that kind is based on the voice signal picked up by the microphone 32 in handheld device.Based on the determination of kind, output 34 is supplied to hearing aid processor 24 by sound environment detector 14, for selecting (one or more) signal processing algorithm and (one or more) parameter of being applicable to sorted acoustic environment.

Thus hearing aid processor 24 is automatically switched to the most suitable one or more algorithm for sorted acoustic environment, keeps optimum sound sound quality and/or speech intelligibility thus in muli-sounds environment.The signal processing algorithm of processor 24 can perform the noise decrease of various ways and dynamic range compression and some other signal processing tasks.

First sound environment detector 14 benefits from the usual computational resource available in handheld device 30 and power supply that are greater than available resource and power supply in the first hearing aids 12.

Sound environment detector 14 comprises feature extractor 36, for determining the characterisitic parameter of the voice signal received from microphone 32.Parameter can about signal power, modal data and other well-known features.

Sound environment detector 14 comprises environment classifier 38 further, for based on the determined characterisitic parameter exported by feature extractor 36, determines the kind of acoustic environment.Sound classification is multiple environment kinds by environment classifier 38, such as, and voice, unclean voice, restaurant's brouhaha, music, traffic noise etc.Classification process can utilize simple Nearest Neighbor Search, neural net, hidden Markov model system or can another system of pattern recognition.The output of environment classifier 38 can be comprise the set of probability of probability that a single environment kind " firmly " determines or indicate the acoustic environment belonging to corresponding kind.Other outputs also can be applied.

Sound environment detector 14 comprises Parameter Mapping 40 further, for being provided for the output 34 selecting (one or more) signal processing algorithm and (one or more) parameter from the available storehouse of signal processing algorithm and parameter F (Θ).The output of environment classifier 38 is mapped to the set of the parameter θ ∈ Θ for hearing aid sound processor 20 by Parameter Mapping 40.The example of such parameter is: the amount of the amount of noise decrease, the amount of gain and HF gain, control corresponding signal algorithm and whether be selected for the control parameter of algorithm of execution, the corner frequency of filter and slope, the compression threshold of compressor algorithm and speed, the adaptation rate of self adaptation feedback canceller algorithm and detectable signal characteristic etc.Other parameters can be comprised.

Handheld device 30 comprises the position detector 41 with gps receiver 42, and it is arranged to the geographical position determining hearing aid device system 10.Shown in handheld device 30 are the smart phones also with mobile interface 48, mobile interface 48 comprise for the GSM-interface of the interconnection with mobile telephone network and in field of mobile telephony well-known WIFI interface 48.When do not have use gps signal, the position of shown hearing aid device system 10 can be confirmed as the address of WIFI network, or is determined by triangulation based on the signal from multiple GSM-transmitter receipt well-known in field of mobile telephony.

To the institute of the acoustic environment in corresponding geographical location, shown sound environment detector 14 is arranged to determines that type records together by determined geographical position.Record can perform with regular time interval and/or by the specific geographic distance between record, and/or by specific events trigger, such as, the conversion of the kind of acoustic environment, the change etc. of signal transacting, such as, the change of signal handler, the change of signal processing parameter etc.

When hearing aid device system 10 is positioned at the region in the geographical position of the record of the acoustic environment with particular types, sound environment detector is arranged to increases the probability that current sound environment is the corresponding precedence record kind of acoustic environment.

The user interface 45 of hearing aid device system 10 can be configured to some kinds of acoustic environment be distributed to more corresponding geographic areas.

Shown sound environment detector 14 is also arranged to such as by the calendar system of mobile interface 48 calling party, to obtain the information about the whereabouts of user, such as, meeting room, office, buffet, restaurant, family etc., and to comprise this information when determining the kind of acoustic environment.Information from the calendar system of user can replace or supplement the information about the geographical position determined by gps receiver.

Such as, (one or more) hearing aids of hearing aid device system 10 automatically can be switched to offline mode by sound environment detector 14, namely, when what indicate in the calendar system such as user, user aboard time, (one or more) wireless device of (one or more) hearing aids is closed.

And when user is in the building of such as high-rise, gps signal may not exist or too weak, makes geographical position not determine by gps receiver.Then, the information of the whereabouts about user from calendar system can be used, information about geographical position is provided, or the information from calendar system can supplement the information about geographical position, such as, the instruction of particular conference room can provide the information about the floor in high-rise.Information about height cannot obtain from gps receiver usually.

When gps receiver can not provide geographical position, sound environment detector 14 automatically can use the information from calendar system.When the Information Availability about geographical position not from gps receiver and calendar system, sound environment detector can based on received voice signal, in a conventional manner to sound environment classification; Or hearing aids can be provided in and such as previously to operate during the adaptive phase or under the pattern selected by user when the situation occurs.

Hearing aids 12 comprises one or more orientation sensor 44, such as, gyroscope, such as, MEMS gyro instrument, inclination sensor, ball switch etc., be arranged to the signal of the orientation of the head of the user exported for determining wear hearing aid, such as, head yaw angle rotates, the head angle of pitch rotates, head roll angle rotate or its combine in one or more, such as tilt, namely, with the angular displacement of head normal upright position, when user stands or sit down, such as, in resting position, the inclination of the head of the people standing or sit down is 0 °, and in resting position, the inclination of the head of the people lain down is 90 °.

First processor 24 is arranged to based on the first signal processing algorithm with account M8003 line processor 24, and this use account is directed as determined based on the output signal 46 of one or more orientation sensor 44 and the output control signal 34 of the first sound environment detector 14.Such as, lie down to doze off if position is changed into from standing by user, then sound environment detector 14 can make signal processor 24 correspondingly changeover program, and such as, the first hearing aids 12 can automatically be weakened.

Statistical information is added that position data (from GPS) is mapped to environmental form, in such as unclean words, automobile, in cocktail party, in church from audio signal (such as, SNR, RMS) by environment classifier 38.User may be unsatisfied with the automatic selection of parameter value, and the adjustment of user interface executive signal process parameter can be used, such as, the current selection of signal processing algorithm can be changed into another signal processing algorithm by user, such as, user can switch to omni-directional signal Processing Algorithm from directivity signal Processing Algorithm.

Sound environment detector is arranged to the storehouse utilizing signal processing algorithm F (Θ), automatically regulate at least one signal processing parameter θ ∈ Θ in hearing aid device system 10, wherein, Θ is algorithm parameter space, comprise the parameter of the selection controlled for the algorithm performed, such as, noise suppression algorithm is selected for and performs in noise circumstance, and is not selected for and performs in quiet environment.

Sound environment detector 14 is arranged to

Record the adjustment made by user interface 45 by the user of hearing aid device system, and

Based on the induction of Bayes's increment preference, in response to recorded adjustment, revise the automatic adjustment of at least one signal processing parameter θ ∈ Θ, when making to detect same sound environment, perform amended automatic adjustment next time.

Shown hearing aid device system comprises sound environment detector, its operation with in response to the acoustic environment around hearing aid device system 10, conditioning signal process parameter θ ∈ Θ.

Environment classifier 38 regards U as input, and it is the vector of the correlated characteristic about acoustic environment, such as, comprises x _tshort-term RMS and SNR estimate.U also will comprise GPS location.The output of environment classifier is represented by discrete type variable C.Exemplary types comprise voice in voice, noise, noise, in the car, in church, first-class in cocktail party.Environmental form is mapped to hearing aid parameter θ by Parameter Mapping 40.

As mentioned above, sometimes, during the operation of equipment, user is to received signal y _tquality be unsatisfied with, and thus by user interface 45 perform hearing aid device system (one or more) regulate.Normal mode is absorbed in model parameter θ by sound environment detector by learning objective lentamente.Finally, process and will the user reducing quantity be caused to handle.

Only when the knowledge of the preference about user is available, execution parameter upgrades.Time during the normal running of user interface 45 at equipment by manipulation, user may be satisfied to transmitted signal quality, but this is uncertain.After all, user may not have wearable device.But, when user starts to handle user interface, suppose that user was unsatisfied with in this moment.The starting to be represented as of manipulation stage of user interface does not agree to the moment.When user handles user interface, user may still search for better adjustment.Just in time after user stops handling user interface 45, the next study moment occurs.Now, suppose that user finds satisfied adjustment; And this is called as agrees to the moment.Do not agree to and agree to that the moment identifies situation for collecting passive and active directive data respectively.

Be suitable for the method for user preference in the hearing aid device system 10 of inducing based on Bayes's increment preference, but additive method is fine.Suppose not agree to the moment in kth and agree to that the moment adjustable signal processing parameter at place is set to θ respectively _kdand θ _kc.And, suppose that the output of the ambient sound grader during kth user's manipulation stage is at C _kplace roughly keeps constant.

Obviously, at environmental condition C _kunder, user is compared to θ _kdpreferred θ _kc(by (end user) decision-making d _k=θ _kc> θ _kdrepresent).Reach the set of all user's decision-makings of a kth decision-making by D _k-1={ d ₁, d ₂..., d _k-1represent.Bayesian updating scheme is used to absorb kth time observation.Parameter Mapping 40 from type to hearing aid parameter is represented by probability function p (θ | C, ω), and wherein, ω represents the parameter for Parameter Mapping 40.

p(ω|C,D _k)＝p(d _k|C,ω)×p(ω|C,D _k-1)/p(C)

Except sound environment detector 14 is except the first hearing aids 12 that the handheld device 30 Fig. 1 moves to Fig. 2, the new hearing aid device system 10 shown in Fig. 2 is similar to the new hearing aid device system of Fig. 1, and operates in the same manner.In this way, microphone output signal 20,22 can be connected directly to sound environment detector 14, acoustic environment can be classified based on the signal by the microphones in hearing aids, and not increase data transportation requirements.

New hearing aid device system 10 shown in Fig. 3 is the ears hearing aid device systems with two hearing aidss, first hearing aids 12A is used for the auris dextra of user, and the second hearing aids 12B is used for the left ear of user, and handheld device 30 comprises gps receiver 42 and mobile interface 48.

Except corresponding sound environmental detector 14 Α, 14 Β cooperations are with except the collaborative selection providing the signal processing algorithm in two hearing aids 12 Α, 12 Β as explained further below, the hearing aids shown in each Fig. 2 of being similar in shown first hearing aids 12 Α and the second hearing aids 12 Β and operating in a similar manner.

Each in first and second hearing aids 12 Α, 12 Β of ears hearing aid device system 10 comprises ears sound environment detector 14 Α, 14 Β, for determine ears hearing aid device system 10 user around the kind of acoustic environment.The determination of kind is based on the output signal of microphone 20 Α, 22 Α, 20 Β, 22 Β.Based on the determination of kind, output 34 Α, 34 Β are supplied to corresponding hearing aid processor 24 Α, 24 Β by ears sound environment detector 14 Α, 14 Β, to select the signal processing algorithm of the kind being applicable to acoustic environment.Thus, ears sound environment detector 14 Α, 14 Β are based on from two hearing aidss (namely, two ears with) signal, determine the kind of acoustic environment, hearing aid processor 24 Α, 24 Β automatically cooperate the most suitable algorithm of the kind switched to for acoustic environment thus, keep optimum sound sound quality and/or speech intelligibility thus by ears hearing aid device system 10 in muli-sounds environment.

Except the first sound environment detector 14 only receives input from a hearing aids 12, and each ears sound environment detector 14 Α, 14 Β receive outside the fact of input from hearing aids 12 Α, both 12 Β, ears sound environment detector 14 Α shown in Fig. 3,14 Β are similar to the sound environment detector 14 shown in Fig. 2.Thus in figure 3, signal transmission between hearing aids 12 Α, 12 Β, make to cooperate the algorithm selecting to be performed by signal processor 24 Α, 24 Β.

In figure 3, the output of environment classifier 14 Α of the first hearing aids 12 Α is transferred to the second hearing aids 12 Β, and the output of environment classifier 14 Β of the second hearing aids 12 Β is transferred to the first hearing aids 12 Α.Then, Parameter Mapping 40 Α, 40 Β of the first and second hearing aids 12 Α, 12 Β are based on identical two input operations, to produce control signal 34 Α, 34 Β that are used for selection processor algorithm, and because parameter mapping units 34 Α, 34 Β receive identical input, the algorithms selection cooperation in two hearing aids 12 Α, 12 Β.

Transmitted data rates is low, this is because only must be transmitted between hearing aids 12 Α, 12 Β for the probability of the kind of acoustic environment or the set of logical value.The quite high stand-by period can be accepted.By time constant being applied to the variable will changed according to the output of Parameter Mapping, the difference that can smoothly can be caused by the stand-by period.As mentioned above, the signal transacting cooperation in two hearing aidss is very important.But if allow the transient period in a few second, hearing aid device system can by only 3-4 transmission operation per second.Thus, power consumption keeps low.

Sound environment detector 14 Α, 14 Β are in the mode identical with disclosed in figure 1 and more than Fig. 2, and the institute provided in conjunction with the handheld unit 30 by new hearing aid device system 10 determines position.

In new ears hearing aid device system 10 in the diagram, except sound environment detector 14 provides two to control output 34 Α, 34 Β, one of them 34 Α is connected to the first hearing aids 12 Α, and another 34 Β is wherein connected to outside the fact of the second hearing aids 12 Β, being similar to the sound environment detector shown in Fig. 1 and the single sound environment detector 14 operated in a similar manner by providing, obtaining the collaborative signal processing in two hearing aids 12 Α, 12 Β.Shown sound environment detector 14 is contained in handheld device 30.

Each hearing aids 12 Α, 12 Β are similar to the hearing aids 12 shown in Fig. 1 and operate in the same manner.

Although illustrate and describe specific embodiment; but will understand, they are not intended to limit invention required for protection, and when not departing from the spirit and scope of invention required for protection; can make multiple change and amendment, this is apparent for those skilled in the art.Thus specification and accompanying drawing should be considered to schematic, instead of restrictive meaning.Invention required for protection is intended to cover change, amendment and equivalent.

Claims

1. a hearing aid device system, comprising:

A () first hearing aids, has

First microphone, described first microphone is used for the voice signal received in response to the described first microphone place in acoustic environment, provides the first audio input signal,

First processor, described first processor is configured to process described first audio input signal according to signal processing algorithm F (Θ), and to generate the first hearing compensation audio signal, wherein, Θ is the set of signal processing parameter, and

First output transducer, described first output transducer is used for based on described first hearing compensation audio signal, provides the first sound sense signal;

(b) position detector, described position detector is arranged to the geographical position determining described hearing aid device system;

(c) first sound environment detector, described first sound environment detector is arranged to the geographical position based on the voice signal received by described hearing aid device system and determined described hearing aid device system, determine the kind of the described acoustic environment around described hearing aid device system, and

Based on the kind of the described acoustic environment determined by described first sound environment detector, export first and be supplied to described first processor, to select first value of the set Θ of described signal processing parameter;

(d) user interface, the adjustment of described user interface for allowing the user of described hearing aid device system to make at least one signal processing parameter θ ∈ Θ; And

E () non-transitory medium, for recording the adjustment of at least one signal processing parameter θ ∈ Θ described in the described user of described hearing aid device system makes;

Wherein, described first sound environment detector is arranged to also based on described adjustment, exports be supplied to described first processor by described first.

2. hearing aid device system according to claim 1, wherein, the Bayes's increment preference based on described adjustment is induced, and exports be supplied to described first processor by described first.

3. hearing aid device system according to claim 1, wherein, described position detector comprises gps receiver.

4. hearing aid device system according to claim 3, wherein, described first sound environment detector is arranged to based on the geographical position of the described voice signal received by described hearing aid device system, determined described hearing aid device system and from the kind being determined the described acoustic environment around described hearing aid device system by least one parameter selected the following group formed: the time in date, one day, the speed of described hearing aid device system and the signal strength signal intensity of signal received by described gps receiver.

5. hearing aid device system according to claim 1, comprises further: non-transitory medium, for recording the described geographical position determined by the described position detector kind together with the described acoustic environment in described geographical location.

6. hearing aid device system according to claim 5, wherein, described first sound environment detector is arranged to by considering the probability that the acoustic environment kind of precedence record occurs in the distance threshold from determined geographical position, determines the kind of described acoustic environment.

7. hearing aid device system according to claim 1, comprises further: non-transitory medium, for storing some kinds of described acoustic environment and corresponding geographic area.

8. hearing aid device system according to claim 1, wherein, described position detector is arranged to the calendar system of automatically accessing described user, to obtain the information about the position of described user, and in addition when the described geographical position of described hearing aid device system be can not determine by described position detector, based on the information of the described position about described user, determine the described geographical position of described hearing aid device system.

9. hearing aid device system according to claim 1, wherein, described first sound environment detector is arranged to when described position detector detects that described user aboard, and described first hearing aids of described hearing aid device system is automatically switched to offline mode.

10. hearing aid device system according to claim 1, wherein, described first hearing aids comprises: at least one orientation sensor, at least one orientation sensor described is arranged to when described first hearing aids is worn over its desired operation position by described user, the information of the orientation of the head about described user is provided, and wherein, described first hearing aids is arranged to the information of the orientation based on the described head about described user, selects described first value.

11. hearing aid device systems according to claim 1, wherein, described position detector is a part for described first hearing aids.

12. hearing aid device systems according to claim 1, comprise: handheld device further, and described handheld device and described first hearing aids can couple communicatedly, and described handheld device holds described position detector.

13. hearing aid device systems according to claim 12, wherein, described handheld device also holds described first sound environment detector.

14. hearing aid device systems according to claim 12, wherein, described handheld device comprises described user interface.

15. hearing aid device systems according to claim 1, wherein, described first hearing aids holds described first sound environment detector.

16. hearing aid device systems according to claim 1, comprise further:

Second hearing aids, has

Second microphone, described second microphone is used for, in response to the voice signal received at described second microphone place, providing the second audio input signal,

Second processor, described second processor is configured to process described second audio input signal according to signal processing algorithm F (Θ), to generate the second hearing compensation audio signal, and

Second output transducer, described second output transducer is used for providing the second sound sense signal based on described second hearing compensation audio signal;

Wherein, described first sound environment detector is arranged to the described geographical position based on described first audio input signal and the second audio input signal and described hearing aid device system, determines the kind of described acoustic environment.

17. hearing aid device systems according to claim 16, wherein, described first sound environment detector is arranged to and provides the second output, to select the second value of the set of described signal processing parameter.

18. hearing aid device systems according to claim 16, wherein, described second hearing aids comprises:

Second sound environment detector, described second sound environment detector is arranged to

Based on the described geographical position of described first audio input signal and the second audio input signal and described hearing aid device system, determine the kind of described acoustic environment, and

Based on the described kind determined by described second sound environment detector, export second and be supplied to described second processor, to select second value of the set Θ of described signal processing parameter.