CN117412232A - Bone conduction hearing aid playing mode switching method and device - Google Patents
Bone conduction hearing aid playing mode switching method and device Download PDFInfo
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- CN117412232A CN117412232A CN202311397735.8A CN202311397735A CN117412232A CN 117412232 A CN117412232 A CN 117412232A CN 202311397735 A CN202311397735 A CN 202311397735A CN 117412232 A CN117412232 A CN 117412232A
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 72
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 230000015654 memory Effects 0.000 claims description 12
- 238000001228 spectrum Methods 0.000 claims description 11
- 230000004913 activation Effects 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- 208000032041 Hearing impaired Diseases 0.000 abstract description 12
- 230000006399 behavior Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 3
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- 238000000605 extraction Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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- 238000010801 machine learning Methods 0.000 description 1
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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
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
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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
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
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Abstract
The invention provides a method and equipment for switching a playing mode of a bone conduction hearing aid. The method comprises the following steps: acquiring a vibration signal acquired by a vibration sensor in the bone conduction hearing aid and a first sound wave signal fed back by the bone conduction hearing aid, and filtering the first sound wave signal to obtain a second sound wave signal; determining a first likelihood that a bone conduction hearing aid wearer is speaking to the outside world, based on the amplitude value of the vibration signal; extracting amplitude characteristics of the second acoustic signal, and determining a second probability that an external person is speaking to the bone conduction hearing aid wearer according to the amplitude characteristics; and controlling the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability. The invention can enhance the real-time performance of communication between the hearing impaired and the external voice, avoid the error switching of the broadcasting mode and improve the experience of the hearing impaired wearing the bone conduction hearing aid.
Description
Technical Field
The embodiment of the invention relates to the technical field of bone conduction hearing aids, in particular to a method and equipment for switching playing modes of a bone conduction hearing aid.
Background
Bone conduction hearing aids are currently the choice for hearing impaired patients to wear because they have a protective effect on the wearer's ear. However, the hearing impaired patient needs to listen to music or broadcast at leisure time, and if he encounters a scene where an external person is talking with him, he also needs to manually turn off the music or broadcast play mode and switch to a talk mode for receiving sounds externally. The play mode is manually switched, so that the real-time performance of communication between the hearing impaired person and external voice is delayed, and the situation of error switching often exists, so that the experience of the hearing impaired person wearing the bone conduction hearing aid is reduced. Therefore, developing a method and apparatus for switching playing modes of bone conduction hearing aids can effectively overcome the defects in the related art, and is a technical problem to be solved in the industry.
Disclosure of Invention
Aiming at the problems existing in the prior art, the embodiment of the invention provides a method and equipment for switching the playing mode of a bone conduction hearing aid.
In a first aspect, an embodiment of the present invention provides a method for switching a play mode of a bone conduction hearing aid, including: acquiring a vibration signal acquired by a vibration sensor in the bone conduction hearing aid and a first sound wave signal fed back by the bone conduction hearing aid, and filtering the first sound wave signal to obtain a second sound wave signal; determining a first likelihood that a bone conduction hearing aid wearer is speaking to the outside world, based on the amplitude value of the vibration signal; extracting amplitude characteristics of the second acoustic signal, and determining a second probability that an external person is speaking to the bone conduction hearing aid wearer according to the amplitude characteristics; and controlling the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability.
Based on the foregoing disclosure of the method embodiment, the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention determines, according to an amplitude value of the vibration signal, a first probability that a bone conduction hearing aid wearer is speaking to the outside, including: if the vibration signal and the third sound wave signal synchronously played are multiple frames, determining the number of frames meeting a preset condition, wherein the preset condition comprises that the amplitude value of the low-frequency component of the vibration signal is larger than a first amplitude value, and the amplitude value of the third sound wave signal synchronously played is smaller than a second amplitude value; the frame number is greater than or equal to a first quantity threshold value, and the first probability is determined to be a first value; and if the number of frames is smaller than the first quantity threshold, determining that the first probability is a second value, wherein the second value is smaller than the first value.
On the basis of the foregoing method embodiment, in the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention, when the first probability is greater than or equal to a probability threshold, an existing filtering spectrum is used to perform filtering processing on the first acoustic wave signal; updating the filtered spectrum based on the first acoustic signal if the first likelihood is less than the likelihood threshold.
Based on the foregoing method embodiment, the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention extracts an amplitude characteristic of the second acoustic signal, and determines, according to the amplitude characteristic, a second probability that an external person is speaking to a bone conduction hearing aid wearer, including: taking the amplitude characteristic of any frame of second acoustic signal as a detection value, and performing voice activation detection to identify a voice boundary; if a voice boundary is identified from the second voice signal, determining that the second probability is a first value; and if the voice boundary is identified from the second voice signal, determining the second probability as a second value, wherein the second value is smaller than the first value.
Based on the content of the method embodiment, the method for converting the playing mode of the bone conduction hearing aid provided by the embodiment of the invention further comprises the step of synchronously collecting amplitude characteristics of vibration signals.
Based on the foregoing method embodiment, the method for switching a play mode of a bone conduction hearing aid according to the first probability and the second probability, wherein the method for switching the bone conduction hearing aid between an internal broadcast mode and an external dialogue mode includes: weighting the first likelihood and the second likelihood predicted based on the second acoustic signal of each frame to obtain a target likelihood; if the target probability is greater than or equal to a switching threshold, controlling the bone conduction hearing aid to switch from an internal broadcasting mode to an external dialogue mode; and if the target probability is smaller than the switching threshold value, controlling the bone conduction hearing aid to switch from an external dialogue mode to an internal broadcasting mode.
Based on the foregoing method embodiment, the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention, where the external dialogue mode includes an external receiving sound wave reinforcement mode.
In a second aspect, an embodiment of the present invention provides a bone conduction hearing aid play mode switching device, including: the first main module is used for obtaining the vibration signals collected by the vibration sensor in the bone conduction hearing aid and the first sound wave signals fed back by the bone conduction hearing aid, and filtering the first sound wave signals to obtain second sound wave signals; a second main module for determining a first likelihood that the bone conduction hearing aid wearer is speaking to the outside based on the magnitude of the vibration signal; a third main module for extracting amplitude characteristics of the second acoustic signal, and determining a second probability that an external person is speaking to the bone conduction hearing aid wearer according to the amplitude characteristics; and a fourth main module, configured to control the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability.
In a third aspect, an embodiment of the present invention provides an electronic device, including:
at least one processor, at least one memory, and a communication interface; wherein,
the processor, the memory and the communication interface are communicated with each other;
the memory stores program instructions executable by the processor, which invokes the program instructions to perform the bone conduction hearing aid play mode switching method provided in any of the various implementations of the first aspect.
In a fourth aspect, embodiments of the present invention provide a non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method for switching a play mode of a bone conduction hearing aid provided by any one of the various implementations of the first aspect.
According to the method and the device for converting the playing mode of the bone conduction hearing aid, provided by the embodiment of the invention, the vibration signals acquired by the vibration sensor in the bone conduction hearing aid are acquired, and the second sound wave signals are obtained; according to the amplitude value of the vibration signal and the amplitude characteristic of the second sound signal, the first probability and the second probability that a bone conduction hearing aid wearer is communicating with the outside are determined, and the bone conduction hearing aid is controlled to conduct mode switching according to the first probability and the second probability, so that the instantaneity of communication between a hearing impaired person and the outside voice can be enhanced, the error switching of a broadcasting mode is avoided, and the experience degree of the hearing impaired person wearing the bone conduction hearing aid is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without any inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for switching play modes of a bone conduction hearing aid according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a playing mode switching device for a bone conduction hearing aid according to an embodiment of the present invention;
fig. 3 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. In addition, the technical features of each embodiment or the single embodiment provided by the invention can be combined with each other at will to form a feasible technical scheme, and the combination is not limited by the sequence of steps and/or the structural composition mode, but is necessarily based on the fact that a person of ordinary skill in the art can realize the combination, and when the technical scheme is contradictory or can not realize, the combination of the technical scheme is not considered to exist and is not within the protection scope of the invention claimed.
The embodiment of the invention provides a method for switching a playing mode of a bone conduction hearing aid, referring to fig. 1, the method comprises the following steps: acquiring a vibration signal acquired by a vibration sensor in the bone conduction hearing aid and a first sound wave signal fed back by the bone conduction hearing aid, and filtering the first sound wave signal to obtain a second sound wave signal; determining a first likelihood that a bone conduction hearing aid wearer is speaking to the outside world, based on the amplitude value of the vibration signal; extracting amplitude characteristics of the second acoustic signal, and determining a second probability that an external person is speaking to the bone conduction hearing aid wearer according to the amplitude characteristics; and controlling the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability.
In particular, the first acoustic signal may comprise all acoustic signals of the environment in which the bone conduction hearing aid is located. For example, sounds made by all persons in the environment, such as sounds uttered by others outside, other sounds in the environment; the vibration signal comprises the sound of the bone conduction hearing aid wearer speaking to the outside other person.
Based on the foregoing disclosure of the method embodiment, as an optional embodiment, the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention, wherein the determining, according to an amplitude value of the vibration signal, a first probability that a bone conduction hearing aid wearer is speaking into the outside includes: if the vibration signal and the third sound wave signal synchronously played are multiple frames, determining the number of frames meeting a preset condition, wherein the preset condition comprises that the amplitude value of the low-frequency component of the vibration signal is larger than a first amplitude value, and the amplitude value of the third sound wave signal synchronously played is smaller than a second amplitude value; the frame number is greater than or equal to a first quantity threshold value, and the first probability is determined to be a first value; and if the number of frames is smaller than the first quantity threshold, determining that the first probability is a second value, wherein the second value is smaller than the first value.
Specifically, the amplitude value of each frame of vibration signal and the amplitude value of the third sound wave signal of each frame synchronously played by the bone conduction hearing aid speaker can be calculated, and the first probability that the bone conduction hearing aid wearer is speaking to the outside is identified according to the amplitude value of each frame of vibration signal and the amplitude value of the third sound wave signal of each frame.
Based on the foregoing disclosure of the method embodiment, as an optional embodiment, in the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention, when the first likelihood is greater than or equal to a likelihood threshold, an existing filtering spectrum is used to perform filtering processing on the first acoustic wave signal; updating the filtered spectrum based on the first acoustic signal if the first likelihood is less than the likelihood threshold.
Based on the foregoing disclosure of the method embodiment, as an optional embodiment, the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention extracts an amplitude characteristic of the second acoustic signal, and determines, according to the amplitude characteristic, a second probability that an external person is speaking to a bone conduction hearing aid wearer, where the second probability includes: taking the amplitude characteristic of any frame of second acoustic signal as a detection value, and performing voice activation detection to identify a voice boundary; if a voice boundary is identified from the second voice signal, determining that the second probability is a first value; and if the voice boundary is identified from the second voice signal, determining the second probability as a second value, wherein the second value is smaller than the first value.
Specifically, in order to improve the accuracy of identifying whether the bone conduction hearing aid wearer has speaking behavior, the first acoustic signal may be filtered to obtain the second acoustic signal if the first likelihood is greater than or equal to the likelihood threshold. For example, spectral subtraction may be used to filter the first acoustic signal, window and frame the second acoustic signal after the filtering process, obtain a corresponding frame-level time domain signal, fourier transform the frame-level time domain signal to obtain an amplitude spectrum corresponding to the second acoustic signal, feature extraction is performed on the amplitude spectrum to obtain an amplitude feature, and voice activation detection may be performed based on the amplitude feature to determine a second likelihood that the bone conduction hearing aid wearer has speaking behavior. The amplitude characteristics may include: short-time average amplitude differences, log mel spectrum, etc., the manner in which voice activation detection is performed may include methods based on energy features, based on template matching features, endpoint detection, formant estimation, and deep machine learning.
Based on the foregoing disclosure of the method embodiment, as an optional embodiment, the method for converting a playing mode of a bone conduction hearing aid according to the embodiment of the present invention, the detected value further includes an amplitude characteristic of a vibration signal collected synchronously.
Based on the foregoing disclosure of the method embodiment, as an optional embodiment, the method for switching a play mode of a bone conduction hearing aid according to the first probability and the second probability, where the method includes: weighting the first likelihood and the second likelihood predicted based on the second acoustic signal of each frame to obtain a target likelihood; if the target probability is greater than or equal to a switching threshold, controlling the bone conduction hearing aid to switch from an internal broadcasting mode to an external dialogue mode; and if the target probability is smaller than the switching threshold value, controlling the bone conduction hearing aid to switch from an external dialogue mode to an internal broadcasting mode.
Specifically, to accurately determine whether the bone conduction hearing aid wearer has speaking behavior, in the embodiments of the present disclosure, whether the bone conduction hearing aid wearer has speaking behavior may be determined together according to a first likelihood and a second likelihood that the bone conduction hearing aid wearer has speaking behavior, and when the bone conduction hearing aid wearer has speaking behavior, the bone conduction hearing aid may be controlled to switch to an external conversation mode. For example, the bone conduction hearing aid is controlled to switch to an external receiving sound wave reinforcement mode for communication by the bone conduction hearing aid wearer. For another example, when the bone conduction hearing aid wearer does not have speaking behavior, the bone conduction hearing aid is controlled to switch to the internal broadcast mode so that the bone conduction hearing aid wearer listens to the broadcast or the like.
Based on the foregoing disclosure of the method embodiment, as an optional embodiment, the method for converting a playing mode of a bone conduction hearing aid provided in the embodiment of the present invention, the external session mode includes an external receiving sound wave reinforcement mode.
According to the method for converting the playing mode of the bone conduction hearing aid, provided by the embodiment of the invention, the vibration signals acquired by the vibration sensor in the bone conduction hearing aid are acquired, and the second sound wave signals are obtained; according to the amplitude value of the vibration signal and the amplitude characteristic of the second sound signal, the first probability and the second probability that a bone conduction hearing aid wearer is communicating with the outside are determined, and the bone conduction hearing aid is controlled to conduct mode switching according to the first probability and the second probability, so that the instantaneity of communication between a hearing impaired person and the outside voice can be enhanced, the error switching of a broadcasting mode is avoided, and the experience degree of the hearing impaired person wearing the bone conduction hearing aid is improved.
The implementation basis of the embodiments of the present invention is realized by a device with a processor function to perform programmed processing. Therefore, in engineering practice, the technical solutions and the functions of the embodiments of the present invention can be packaged into various modules. Based on this actual situation, on the basis of the above embodiments, an embodiment of the present invention provides a bone conduction hearing aid play mode switching device for performing the bone conduction hearing aid play mode switching method in the above method embodiment. Referring to fig. 2, the apparatus includes: the first main module is used for obtaining the vibration signals collected by the vibration sensor in the bone conduction hearing aid and the first sound wave signals fed back by the bone conduction hearing aid, and filtering the first sound wave signals to obtain second sound wave signals; a second main module for determining a first likelihood that the bone conduction hearing aid wearer is speaking to the outside based on the magnitude of the vibration signal; a third main module for extracting amplitude characteristics of the second acoustic signal, and determining a second probability that an external person is speaking to the bone conduction hearing aid wearer according to the amplitude characteristics; and a fourth main module, configured to control the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability.
The device for converting the playing mode of the bone conduction hearing aid provided by the embodiment of the invention adopts a plurality of modules shown in fig. 2, and obtains a second sound wave signal by obtaining a vibration signal acquired by a vibration sensor in the bone conduction hearing aid; according to the amplitude value of the vibration signal and the amplitude characteristic of the second sound signal, the first probability and the second probability that a bone conduction hearing aid wearer is communicating with the outside are determined, and the bone conduction hearing aid is controlled to conduct mode switching according to the first probability and the second probability, so that the instantaneity of communication between a hearing impaired person and the outside voice can be enhanced, the error switching of a broadcasting mode is avoided, and the experience degree of the hearing impaired person wearing the bone conduction hearing aid is improved.
It should be noted that, the device in the device embodiment provided by the present invention may be used to implement the method in the above method embodiment, and may also be used to implement the method in other method embodiments provided by the present invention, where the difference is merely that the corresponding functional module is provided, and the principle is basically the same as that of the above device embodiment provided by the present invention, so long as a person skilled in the art refers to a specific technical solution in the above device embodiment based on the above device embodiment, and obtains a corresponding technical means by combining technical features, and a technical solution formed by these technical means, and on the premise that the technical solution is ensured to have practicability, the device in the above device embodiment may be modified, so as to obtain a corresponding device embodiment, and be used to implement the method in other method embodiment. For example:
based on the foregoing content of the device embodiment, as an optional embodiment, the bone conduction hearing aid playing mode switching device provided in the embodiment of the present invention further includes: a first sub-module for implementing said determining a first likelihood that a bone conduction hearing aid wearer is speaking to the outside based on an amplitude value of said vibration signal, comprising: if the vibration signal and the third sound wave signal synchronously played are multiple frames, determining the number of frames meeting a preset condition, wherein the preset condition comprises that the amplitude value of the low-frequency component of the vibration signal is larger than a first amplitude value, and the amplitude value of the third sound wave signal synchronously played is smaller than a second amplitude value; the frame number is greater than or equal to a first quantity threshold value, and the first probability is determined to be a first value; and if the number of frames is smaller than the first quantity threshold, determining that the first probability is a second value, wherein the second value is smaller than the first value.
Based on the foregoing content of the device embodiment, as an optional embodiment, the bone conduction hearing aid playing mode switching device provided in the embodiment of the present invention further includes: the second sub-module is used for realizing that the first sound wave signal is subjected to filtering processing by adopting an existing filtering spectrum under the condition that the first probability is larger than or equal to a probability threshold value; updating the filtered spectrum based on the first acoustic signal if the first likelihood is less than the likelihood threshold.
Based on the foregoing content of the device embodiment, as an optional embodiment, the bone conduction hearing aid playing mode switching device provided in the embodiment of the present invention further includes: a third sub-module for implementing the extraction of the amplitude characteristics of the second acoustic signal, determining, based on the amplitude characteristics, a second likelihood that an external person is speaking to the bone conduction hearing aid wearer, comprising: taking the amplitude characteristic of any frame of second acoustic signal as a detection value, and performing voice activation detection to identify a voice boundary; if a voice boundary is identified from the second voice signal, determining that the second probability is a first value; and if the voice boundary is identified from the second voice signal, determining the second probability as a second value, wherein the second value is smaller than the first value.
Based on the foregoing content of the device embodiment, as an optional embodiment, the bone conduction hearing aid playing mode switching device provided in the embodiment of the present invention further includes: and the fourth sub-module is used for realizing that the detection value further comprises amplitude characteristics of synchronously acquired vibration signals.
Based on the foregoing content of the device embodiment, as an optional embodiment, the bone conduction hearing aid playing mode switching device provided in the embodiment of the present invention further includes: a fifth sub-module, configured to implement the controlling the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability, including: weighting the first likelihood and the second likelihood predicted based on the second acoustic signal of each frame to obtain a target likelihood; if the target probability is greater than or equal to a switching threshold, controlling the bone conduction hearing aid to switch from an internal broadcasting mode to an external dialogue mode; and if the target probability is smaller than the switching threshold value, controlling the bone conduction hearing aid to switch from an external dialogue mode to an internal broadcasting mode.
Based on the foregoing content of the device embodiment, as an optional embodiment, the bone conduction hearing aid playing mode switching device provided in the embodiment of the present invention further includes: and a sixth sub-module for implementing the external dialogue mode including an external receiving sound wave reinforcement mode.
The method of the embodiment of the invention is realized by the electronic equipment, so that the related electronic equipment is necessary to be introduced. To this end, an embodiment of the present invention provides an electronic device, as shown in fig. 3, including: at least one processor (processor), a communication interface (Communications Interface), at least one memory (memory) and a communication bus, wherein the at least one processor, the communication interface, and the at least one memory communicate with each other via the communication bus. The at least one processor may invoke logic instructions in the at least one memory to perform all or part of the steps of the methods provided by the various method embodiments described above.
Further, the logic instructions in at least one of the memories described above may be implemented in the form of a software functional unit and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or may be implemented by hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. Based on this knowledge, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for switching a play mode of a bone conduction hearing aid, comprising: acquiring a vibration signal acquired by a vibration sensor in the bone conduction hearing aid and a first sound wave signal fed back by the bone conduction hearing aid, and filtering the first sound wave signal to obtain a second sound wave signal; determining a first likelihood that a bone conduction hearing aid wearer is speaking to the outside world, based on the amplitude value of the vibration signal; extracting amplitude characteristics of the second acoustic signal, and determining a second probability that an external person is speaking to the bone conduction hearing aid wearer according to the amplitude characteristics; and controlling the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability.
2. The method according to claim 1, wherein determining a first likelihood that the bone conduction hearing aid wearer is speaking to the outside based on the magnitude of the vibration signal comprises: if the vibration signal and the third sound wave signal synchronously played are multiple frames, determining the number of frames meeting a preset condition, wherein the preset condition comprises that the amplitude value of the low-frequency component of the vibration signal is larger than a first amplitude value, and the amplitude value of the third sound wave signal synchronously played is smaller than a second amplitude value; the frame number is greater than or equal to a first quantity threshold value, and the first probability is determined to be a first value; and if the number of frames is smaller than the first quantity threshold, determining that the first probability is a second value, wherein the second value is smaller than the first value.
3. The bone conduction hearing aid play mode switching method according to claim 2, wherein, in the case where the first probability is greater than or equal to a probability threshold, filtering the first acoustic wave signal using an existing filter spectrum; updating the filtered spectrum based on the first acoustic signal if the first likelihood is less than the likelihood threshold.
4. A method of converting a play mode of a bone conduction hearing aid according to claim 3, wherein said extracting amplitude characteristics of said second acoustic signal, determining a second likelihood that an external person is speaking to a bone conduction hearing aid wearer based on said amplitude characteristics, comprises: taking the amplitude characteristic of any frame of second acoustic signal as a detection value, and performing voice activation detection to identify a voice boundary; if a voice boundary is identified from the second voice signal, determining that the second probability is a first value; and if the voice boundary is identified from the second voice signal, determining the second probability as a second value, wherein the second value is smaller than the first value.
5. The method of claim 4, wherein the detected values further comprise amplitude characteristics of the synchronously acquired vibration signals.
6. The method according to claim 5, wherein controlling the bone conduction hearing aid to switch between the internal broadcast mode and the external dialogue mode according to the first probability and the second probability comprises: weighting the first likelihood and the second likelihood predicted based on the second acoustic signal of each frame to obtain a target likelihood; if the target probability is greater than or equal to a switching threshold, controlling the bone conduction hearing aid to switch from an internal broadcasting mode to an external dialogue mode; and if the target probability is smaller than the switching threshold value, controlling the bone conduction hearing aid to switch from an external dialogue mode to an internal broadcasting mode.
7. The method of claim 6, wherein the external dialogue mode includes an external receiving sound reinforcement mode.
8. A bone conduction hearing aid play mode switching device, comprising: the first main module is used for obtaining the vibration signals collected by the vibration sensor in the bone conduction hearing aid and the first sound wave signals fed back by the bone conduction hearing aid, and filtering the first sound wave signals to obtain second sound wave signals; a second main module for determining a first likelihood that the bone conduction hearing aid wearer is speaking to the outside based on the magnitude of the vibration signal; a third main module for extracting amplitude characteristics of the second acoustic signal, and determining a second probability that an external person is speaking to the bone conduction hearing aid wearer according to the amplitude characteristics; and a fourth main module, configured to control the bone conduction hearing aid to switch between an internal broadcast mode and an external dialogue mode according to the first probability and the second probability.
9. An electronic device, comprising:
at least one processor, at least one memory, and a communication interface; wherein,
the processor, the memory and the communication interface are communicated with each other;
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1-7.
10. A non-transitory computer readable storage medium storing computer instructions that cause a computer to perform the method of any one of claims 1 to 7.
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