CN113660594B - Self-adjusting noise reduction method and device for hearing aid system - Google Patents
Self-adjusting noise reduction method and device for hearing aid system Download PDFInfo
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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
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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
- H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
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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
- H04R2225/41—Detection or adaptation of hearing aid parameters or programs to listening situation, e.g. pub, forest
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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 self-adjusting noise reduction method of a hearing aid system, which comprises the following steps: generating an input signal from a sound signal of the surrounding environment; modifying the input signal and producing an output signal therefrom, the modification comprising removing or reducing the amplitude of a frequency of a particular range of the input signal; storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information; the change value of the output signal information in the front time domain and the rear time domain is obtained, the correction content of the input signal is changed according to the change value, the sound environment in the front time domain and the rear time domain is monitored, the sound environment can be used as a basis for judging the change of the noise environment, and the overlapping part of the basic time units exists between the adjacent time domain setting information, so that the relevance of the front time domain data and the rear time domain data is enhanced, and the sound environment is more objective and accurate; the standard deviation of the amplitude information of the output signal in a certain time domain is calculated, so that the dispersibility of the amplitude information can be mastered.
Description
Technical Field
The invention relates to the field of hearing aids, in particular to a self-adjusting noise reduction method and device for a hearing aid system.
Background
The basic structure of the hearing aid comprises four main parts, namely a sound transmitter, an amplifier, an earphone and a power supply, wherein the hearing aid converts sound signals into electric signals (electric energy) and sends the electric signals into the amplifier, the amplifier amplifies the electric signals which are input very weakly and then sends the electric signals to an output transducer, the output transducer consists of the earphone or a bone vibrator, and the output transducer is used for converting the amplified strong signals into sound signals (acoustic energy) or kinetic energy for output from the electric energy, so that the signals sent out by the earphone or the bone vibrator are more than the signals originally received by the microphone, and the hearing loss of hearing impaired people can be compensated to different degrees;
Hearing impairment is one of the main problems affecting the quality of life of human beings and causing disability, is a generic term for hearing impairment of different degrees caused by organic or functional lesions of auditory conduction paths, and hearing impairment with a lower degree is sometimes called re-hearing, hearing impairment with significant influence on normal social ability is called deaf, and a normal social person called deaf-mute or deaf person cannot be speaking due to binaural hearing impairment, and most congenital hearing impaired patients are different from normal hearing mechanisms, and in a noisy environment, lack of biological regulation ability on sound, and the worn hearing aid also lacks corresponding feedback mechanisms, which can cause hearing impaired patients to be unable to adapt to the noisy environment, be unfavorable to communication, and also cause secondary damage to hearing, and seriously afflict the work and life of hearing impaired patients.
SUMMARY OF THE PATENT FOR INVENTION
Aiming at the defects in the prior art, the invention provides a self-adjusting noise reduction method and device for a hearing aid system, so as to improve the adaptability of hearing impaired patients to noise environments.
According to a first aspect of the disclosed embodiments, a preferred embodiment of the present invention provides a self-adjusting noise reduction method for a hearing aid system, including:
Generating an input signal from a sound signal of the surrounding environment;
modifying the input signal and producing an output signal therefrom, the modification comprising removing or reducing the amplitude of a frequency of a particular range of the input signal;
Storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
and obtaining the change value of the output signal information in the front and rear time domains, and changing the correction content of the input signal according to the change value.
In an embodiment, the storing the output signal information in a certain time domain, the output signal information including amplitude and vibration frequency information includes:
acquiring time domain setting information and basic time unit information of the output signal, wherein the time domain setting information comprises a constant number of basic time units;
and storing the output signal information in different time domains according to the time domain setting information and the basic time unit information.
In an embodiment, the calculating the change value of the output signal information in the front-rear time domain and changing the correction content of the input signal according to the change value includes:
calculating standard deviation of amplitude information of the output signal in a timing domain;
calculating the variation value of the standard deviation in the front and rear time domains, wherein the variation value comprises absolute value information of a difference value and positive and negative value information;
Judging the increase and decrease information of the correction content according to the positive and negative value information;
calculating the multiple relation between the absolute value information of the difference and the standard value;
and generating correction content execution information conforming to the increase and decrease information according to the multiple relation between the absolute value information of the difference and the standard value.
In an embodiment, the generating the correction content execution information according to the multiple relation between the absolute value information of the difference and the standard value includes:
Calculating the multiple relation between the average values of the amplitude information of the output signals in the front time domain and the rear time domain;
And determining the correction content to remove or reduce the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relation between the average values of the amplitude information of the output signal and the increase and decrease information.
According to a second aspect of embodiments of the present disclosure, the present disclosure provides a self-adjusting noise reduction device for a hearing assistance system, comprising:
The acquisition module is used for generating an input signal from sound signals of the surrounding environment;
A filtering module for modifying the input signal and producing an output signal therefrom, the modification comprising removing or reducing the amplitude of frequencies in a particular range of the input signal;
The statistics module is used for storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
and the adjusting module is used for obtaining the change value of the output signal information in the front time domain and the rear time domain and changing the correction content of the input signal according to the change value.
In an embodiment, the statistics module includes:
The acquisition module is used for acquiring time domain setting information and basic time unit information of the output signal, wherein the time domain setting information comprises a constant number of basic time units;
And the buffer module is used for storing the output signal information in different time domains according to the time domain setting information and the basic time unit information.
In one embodiment, the adjustment module comprises:
the first calculation module is used for calculating the standard deviation of the amplitude information of the output signal in a certain time domain;
the second calculation module is used for calculating the change value of the standard deviation in the front time domain and the rear time domain, wherein the change value comprises absolute value information of a difference value and positive and negative value information;
The judging module is used for judging the increase and decrease information of the correction content according to the positive and negative value information;
The third calculation module is used for calculating the multiple relation between the absolute value information of the difference value and the standard value;
And the generation module is used for generating correction content execution information which accords with the increase and decrease information according to the multiple relation between the absolute value information of the difference value and the standard value.
In an embodiment, the generating module includes:
The calculating sub-module is used for calculating the multiple relation between the average values of the amplitude information of the output signals in the front time domain and the rear time domain;
And the determining module is used for determining that the correction content removes or reduces the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relation and the increase and decrease information among the average values of the amplitude information of the output signal.
According to a third aspect of embodiments of the present disclosure, the present disclosure provides a self-adjusting noise reduction device for a hearing assistance system, comprising:
A processor;
a memory for storing processor-executable instructions;
Wherein the processor is configured to:
Generating an input signal from a sound signal of the surrounding environment;
modifying the input signal and producing an output signal therefrom, the modification comprising removing or reducing the amplitude of a frequency of a particular range of the input signal;
Storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
and obtaining the change value of the output signal information in the front and rear time domains, and changing the correction content of the input signal according to the change value.
According to the technical scheme, the self-adjusting noise reduction method and device for the hearing aid system provided by the invention can have the following beneficial effects: the sound environment in the front time domain and the rear time domain is monitored, the sound environment can be used as a basis for judging the change of the noise environment, and the overlapping part of the basic time units exists between the adjacent time domain setting information, so that the relevance of the front time domain data and the rear time domain data is enhanced, and the sound environment is more objective and accurate; the standard deviation of the amplitude information of the output signals in a certain time domain is calculated, the dispersion of the amplitude information can be mastered, the dispersion of the amplitude information of the output signals in the front time domain and the rear time domain is compared, and correction content execution information about sound environment change can be obtained, so that a hearing impaired patient can only be greatly disturbed when just hearing the noise, the noise is continuously weakened, a low-noise environment can be created, and the hearing impaired patient is not influenced to improve the volume to carry out language communication.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
In order to more clearly illustrate the patented embodiments of the invention, the drawings that are used in the detailed description or prior art description will be briefly described below. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
FIG. 1 is a flow chart of a self-adjusting noise reduction method for a hearing aid system provided by the present invention;
FIG. 2 is a flowchart of step S103 in a self-adjusting noise reduction method for a hearing aid system according to the present invention;
FIG. 3 is a flowchart of step S104 in a self-adjusting noise reduction method for a hearing aid system according to the present invention;
FIG. 4 is a flowchart of step S305 in a self-adjusting noise reduction method for a hearing aid system according to the present invention;
FIG. 5 is a block diagram of a self-adjusting noise reduction device for a hearing aid system according to the present invention;
FIG. 6 is a block diagram of a statistical module in a self-adjusting noise reduction device of a hearing aid system provided by the present invention;
FIG. 7 is a block diagram of an adjustment module in a self-adjusting noise reduction device of a hearing aid system according to the present invention;
FIG. 8 is a block diagram of a generation module in a self-adjusting noise reduction device of a hearing aid system provided by the present invention;
Fig. 9 is a block diagram of another self-adjusting noise reduction device for a hearing aid system according to the present invention.
Detailed Description
Embodiments of the patent technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present patent, and therefore are only exemplary and should not be taken as limiting the scope of the present patent.
Fig. 1 is a flowchart of a self-adjusting noise reduction method of a hearing aid system, which is applied to hearing aid equipment. The self-adjusting noise reduction method of the hearing aid system provided by the embodiment is shown in fig. 1, and comprises the following steps of S101-S104:
in step S101, an input signal is generated from sound signals of the surrounding environment;
in step S102, the input signal is modified and an output signal is generated therefrom, the modification including removing or reducing the amplitude of the input signal at a frequency within a specific range;
The sound-electricity conversion device such as a microphone and a microphone firstly collects air vibration in the surrounding environment of the hearing aid terminal, converts the vibration into electric signal fluctuation to serve as an audio input signal, and then eliminates or attenuates noise audio frequency of a specific range of frequency through the audio processing device such as a filter and the like, so that noise interference can be reduced, wherein the amplitude of the frequency of the specific range of the input signal can be eliminated or reduced by adopting an active noise reduction technology, reverse sound waves of noise can be generated through vibration simulation, and the purpose of noise reduction can be achieved.
In step S103, the output signal information in a certain time domain is stored, where the output signal information includes amplitude and vibration frequency information;
The time domain is selected to be between 5 and 15 seconds, so that the time domain is too short, the active adjustment mechanism is frequently replaced, the hearing ability of the hearing impaired patient is continuously changed along with the sound, the reaction and communication are not facilitated, the time domain is too long, the active adjustment mechanism is slowly adjusted, the hearing ability of the hearing impaired patient cannot be quickly blended into a noise environment, and the hearing impaired patient has a longer inadaptation period;
The output signal information can generate sound wave patterns according to the amplitude and vibration frequency information so as to realize the monitoring function of sound environment within 5-15 s.
In step S104, a change value of the output signal information in the front and rear time domains is obtained, and the correction content of the input signal is changed according to the change value;
Through the monitoring to the sound environment near the time point, can calculate the change numerical value of noise environment, if the noise increases, then increase the correction content to the incoming signal to weaken the noise influence, if the noise reduces, then the correction content to the incoming signal correspondingly weakens, can not influence hearing impaired patient's response to the noise sound source, has compensatied hearing impaired patient's loss of hearing mechanism.
As shown in fig. 2, in step S103, the storing the output signal information in a certain time domain, where the output signal information includes amplitude and vibration frequency information includes the following steps S201 to S202:
In step S201, time domain setting information and basic time unit information of the output signal are acquired, where the time domain setting information includes a constant number of basic time units;
In step S202, output signal information in different time domains is stored according to the time domain setting information and the basic time unit information;
the time domain setting information is composed of at least one basic time unit, overlapping parts of the basic time units exist between adjacent time domain setting information, and the arrangement of the overlapping parts enhances the relevance of front and rear time domain data, and compared with a statistics mode of complete time division, the time domain setting information is more objective and accurate;
Illustrating: the time domain setting information is 8s, the basic time unit information is 0.5s, so that the time domain setting information is divided into 16 parts, the former time domain is between 0 and 8s, the latter time domain is between 7.5s and 15.5s, and so on;
alternatively, the previous time domain is between 0-8s, and the subsequent time domain can be 6s-14s, 12s-20s, 18s-26s, 24s-32s.
In one embodiment, as shown in fig. 3, in step S104, the calculating the change value of the output signal information in the front-rear time domain and changing the correction content of the input signal according to the change value includes the following steps S301-S305:
in step S301, calculating a standard deviation of the amplitude information of the output signal in a certain time domain;
the amplitude information is the peak amplitude intensity of the audio signal, and the standard deviation can be used for describing the dispersibility of the amplitude information, and the formula is as follows:
in step S302, a change value of the standard deviation in the front-rear time domain is obtained, where the change value includes absolute value information of a difference value and positive and negative value information;
in step S303, increase/decrease information of the correction content is determined based on the positive and negative value information;
Illustrating: and recording the first standard deviation value as a and the second standard deviation value as b, wherein the absolute value information of the difference is absolute value information of the difference, and the absolute value information of the difference can reflect the change of the amplitude information, wherein the dispersion of the amplitude information is reduced when the a-b is positive, and the dispersion of the amplitude information is improved when the a-b is negative.
In step S304, a multiple relationship between the absolute value information of the difference and a standard value is calculated;
In step S305, correction content execution information conforming to the increase/decrease information is generated according to the multiple relationship between the absolute value information of the difference value and the standard value;
The standard value is a constant number c, the value c is set according to the hearing ability and habit of the hearing impaired patient, when the absolute value information of the difference is larger than the value c, the hearing environment change is indicated, the first correction content execution information can be generated, when the absolute value information of the difference is smaller than or equal to the value c, the degree of the hearing environment change is indicated to be lower, the second correction content execution information can be generated, preferably, the multiple relation between the absolute value information of the difference and the standard value is matched with the correction content execution information of different degrees, the correction content execution information can be greatly changed under the condition that the hearing environment change is large, the correction content execution information is slightly changed under the condition that the hearing environment change is not large, the hearing range of the hearing impaired patient can be changed, and the adaptability to the noise environment can be enhanced, and the relation between the multiple relation between the absolute value information of the difference and the standard value and the correction content execution information is recorded as d1/d2/d3/d4/d5.
In one embodiment, as shown in fig. 4, in step S305, the generating the correction content execution information according to the increase/decrease information according to the multiple relationship between the absolute value information of the difference and the standard value includes the following steps S401-S402:
In step S401, a multiple relationship between the average values of the output signal amplitude information in the front and rear time domains is calculated;
In step S402, a multiple of the amplitude of the frequency in the specific range of the input signal is removed or reduced according to the multiple relation between the average values of the amplitude information of the output signal and the increase/decrease information;
the average value of the amplitude information of the output signals before and after recording is n1 and n2 respectively, the n2/n1 can obtain the multiple relation of the two, the product of the n2/n1 and the d value is the multiple of the amplitude of the frequency of the specific range of the input signal removed or reduced by the correction content, and the noise audio of the frequency of the specific range is eliminated or weakened by changing, adding a filter and other audio processing devices;
Illustrating: when a hearing impaired patient sits in the vehicle, the noise heard is larger when the vehicle starts to run, and then the noise starts to become lower, because the hearing impaired patient can be helped to adapt to the noise environment quickly due to the fact that the hearing threshold of the hearing aid is raised due to the fact that the hearing impaired patient is in the environment where the noise exists for a long time.
The following are device embodiments of the present disclosure that may be used to perform method embodiments of the present disclosure.
Fig. 5 is a block diagram of a self-adjusting noise reduction device for a hearing aid system, which may be implemented as part or all of a hearing aid device by software, hardware, or a combination of both. As shown in fig. 5, the apparatus includes:
An acquisition module 1 for generating an input signal from sound signals of the surrounding environment;
A filtering module 2 for modifying the input signal and generating an output signal therefrom, the modification comprising removing or reducing the amplitude of the input signal at a frequency within a specific range;
the statistics module 3 is used for storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
And the adjusting module 4 is used for solving the change value of the output signal information in the front and rear time domains and changing the correction content of the input signal according to the change value.
According to the device disclosed by the embodiment of the invention, the sound environment in the front time domain and the rear time domain is monitored, the sound environment can be used as a basis for judging the change of the noise environment, and the overlapping part of the basic time units exists between the adjacent time domain setting information, so that the relevance of the front time domain data and the rear time domain data is enhanced, and the device is more objective and accurate; the standard deviation of the amplitude information of the output signals in a certain time domain is calculated, the dispersion of the amplitude information can be mastered, the dispersion of the amplitude information of the output signals in the front time domain and the rear time domain is compared, and correction content execution information about sound environment change can be obtained, so that a hearing impaired patient can only be greatly disturbed when just hearing the noise, the noise is continuously weakened, a low-noise environment can be created, and the hearing impaired patient is not influenced to improve the volume to carry out language communication.
In one embodiment, as shown in fig. 6, the statistics module 3 includes:
An obtaining module 31, configured to obtain time domain setting information and basic time unit information of the output signal, where the time domain setting information includes a constant number of basic time units;
the buffer module 32 is configured to store output signal information in different time domains according to the time domain setting information and the basic time unit information.
In one embodiment, as shown in fig. 7, the adjusting module 4 includes:
A determining module 41, configured to calculate a standard deviation of the amplitude information of the output signal in a certain time domain;
A second calculation module 42, configured to obtain a variation value of the standard deviation in the front-rear time domain, where the variation value includes absolute value information of a difference value and positive-negative value information;
A judging module 43, configured to judge increase and decrease information of the correction content according to the positive and negative value information;
a third calculation module 44, configured to calculate a multiple relationship between the absolute value information of the difference and a standard value;
And the generating module 45 is used for generating correction content execution information according with the increase and decrease information according with the multiple relation between the absolute value information of the difference value and the standard value.
In one embodiment, as shown in fig. 8, the generating module 45 includes:
A calculating sub-module 451 for calculating a multiple relationship between the average values of the output signal amplitude information in the front and rear time domains;
A determining module 452, configured to determine that the correction content removes or reduces the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relationship between the average values of the amplitude information of the output signal and the increase and decrease information.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
The embodiment of the disclosure also provides a self-adjusting noise reduction device of a hearing aid system, as shown in fig. 9, comprising:
a processor 101;
A memory 102 for storing instructions executable by the processor 101;
wherein the processor 101 is configured to:
Generating an input signal from a sound signal of the surrounding environment;
modifying the input signal and producing an output signal therefrom, the modification comprising removing or reducing the amplitude of a frequency of a particular range of the input signal;
Storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
and obtaining the change value of the output signal information in the front and rear time domains, and changing the correction content of the input signal according to the change value.
The above processor 101 may be further configured to:
The storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information, and the method comprises the following steps:
acquiring time domain setting information and basic time unit information of the output signal, wherein the time domain setting information comprises a constant number of basic time units;
and storing the output signal information in different time domains according to the time domain setting information and the basic time unit information.
The above processor 101 may be further configured to:
The calculating of the change value of the output signal information in the front and rear time domains and the changing of the correction content of the input signal according to the change value comprises the following steps:
calculating standard deviation of amplitude information of the output signal in a timing domain;
calculating the variation value of the standard deviation in the front and rear time domains, wherein the variation value comprises absolute value information of a difference value and positive and negative value information;
Judging the increase and decrease information of the correction content according to the positive and negative value information;
calculating the multiple relation between the absolute value information of the difference and the standard value;
and generating correction content execution information conforming to the increase and decrease information according to the multiple relation between the absolute value information of the difference and the standard value.
The above processor 101 may be further configured to:
The generating the correction content execution information which accords with the increase and decrease information according to the multiple relation between the absolute value information of the difference and the standard value comprises the following steps:
Calculating the multiple relation between the average values of the amplitude information of the output signals in the front time domain and the rear time domain;
And determining the correction content to remove or reduce the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relation between the average values of the amplitude information of the output signal and the increase and decrease information.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 9 is a block diagram of another self-adjusting noise reduction device for a hearing aid system, which is suitable for use with hearing aid devices, as provided by the present invention.
The hearing aid device may include one or more of the following components: a processing component 100, a memory 102, a communication component 110, an input/output interface 120, a power component 130, a multimedia component 140, a sensor component 150, and an audio component 160. The processing component 100 generally controls overall operation of the hearing assistance device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing assembly 100 may include one or more processors 101 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 100 may include one or more modules that facilitate interactions between the processing component 100 and other components. For example, the processing component 100 may include a multimedia module to facilitate interaction between the multimedia component 140 and the processing component 100.
The memory 102 is configured to store various types of data to support operation at the hearing aid device. Examples of such data include instructions for any application or method operating on the hearing aid device, contact data, phonebook data, messages, pictures, video, etc. The memory 102 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. The power supply assembly 130 provides power to the various components of the hearing aid device. The power supply components 130 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the hearing assistance devices.
The multimedia component 140 comprises a screen between the hearing aid device and the user providing an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia assembly 140 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the hearing aid device is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities. The audio component 160 is configured to output and/or input audio signals. For example, the audio component 160 includes a Microphone (MIC) configured to receive external audio signals when the hearing device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 102 or transmitted via the communication component 110. In some embodiments, the audio component 160 further comprises a speaker for outputting audio signals. The input/output interface 120 provides an interface between the processing assembly 100 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button. The sensor assembly 150 includes one or more sensors for providing status assessment of various aspects of the hearing device. For example, the sensor assembly 150 may detect an on/off state of the hearing device, a relative positioning of the components, such as a display and keypad of the hearing device, the sensor assembly 150 may also detect a change in position of the hearing device or a component of the hearing device, the presence or absence of user contact with the hearing device, a change in the hearing device orientation or acceleration/deceleration and temperature of the hearing device. The sensor assembly 150 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 150 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 150 may further include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 110 is configured to facilitate wired or wireless communication between the hearing assistance device and other devices. The hearing aid device may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication part 110 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 110 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the hearing aid device can be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the above method.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as a memory 102, comprising instructions executable by the processor 101 of the hearing aid device to perform the above method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
A non-transitory computer readable storage medium, which when executed by a processor 101 of a hearing assistance device, causes the hearing assistance device to increase the adaptability of a hearing impaired patient to a noisy environment, the method comprising:
Generating an input signal from a sound signal of the surrounding environment;
modifying the input signal and producing an output signal therefrom, the modification comprising removing or reducing the amplitude of a frequency of a particular range of the input signal;
Storing the output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
and obtaining the change value of the output signal information in the front and rear time domains, and changing the correction content of the input signal according to the change value.
In an embodiment, the storing the output signal information in a certain time domain, the output signal information including amplitude and vibration frequency information includes:
acquiring time domain setting information and basic time unit information of the output signal, wherein the time domain setting information comprises a constant number of basic time units;
and storing the output signal information in different time domains according to the time domain setting information and the basic time unit information.
In an embodiment, the calculating the change value of the output signal information in the front-rear time domain and changing the correction content of the input signal according to the change value includes:
calculating standard deviation of amplitude information of the output signal in a timing domain;
calculating the variation value of the standard deviation in the front and rear time domains, wherein the variation value comprises absolute value information of a difference value and positive and negative value information;
Judging the increase and decrease information of the correction content according to the positive and negative value information;
calculating the multiple relation between the absolute value information of the difference and the standard value;
and generating correction content execution information conforming to the increase and decrease information according to the multiple relation between the absolute value information of the difference and the standard value.
In an embodiment, the generating the correction content execution information according to the multiple relation between the absolute value information of the difference and the standard value includes:
Calculating the multiple relation between the average values of the amplitude information of the output signals in the front time domain and the rear time domain;
And determining the correction content to remove or reduce the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relation between the average values of the amplitude information of the output signal and the increase and decrease information.
In the description of the present patent, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present patent. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The above embodiments are only for illustrating the technical solution of the present invention patent, and not for limiting the same; although the present 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 or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the claims and specification.
Claims (5)
1. A method of self-adjusting noise reduction for a hearing assistance system, comprising:
Generating an input signal from a sound signal of the surrounding environment;
Modifying the input signal and thereby producing an output signal, the modification comprising removing or reducing the amplitude of the input signal at a frequency within a specific range;
storing output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
calculating the change value of the output signal information in the front and rear time domains, and changing the correction content of the input signal according to the change value;
the method for obtaining the change value of the output signal information in the front and rear time domains and changing the correction content of the input signal according to the change value comprises the following steps:
calculating standard deviation of amplitude information of the output signal in a timing domain;
calculating the variation value of the standard deviation in the front and rear time domains, wherein the variation value comprises absolute value information of a difference value and positive and negative value information;
Judging the increase and decrease information of the correction content according to the positive and negative value information;
calculating the multiple relation between the absolute value information of the difference and the standard value;
generating correction content execution information conforming to the increase and decrease information according to the multiple relation between the absolute value information of the difference and the standard value;
Wherein the generating the correction content execution information according with the increase and decrease information according with the multiple relation between the absolute value information of the difference and the standard value comprises the following steps:
Calculating the multiple relation between the average values of the amplitude information of the output signals in the front time domain and the rear time domain;
And determining the correction content to remove or reduce the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relation between the average values of the amplitude information of the output signal and the increase and decrease information.
2. The method of claim 1, wherein said storing said output signal information in a timing domain, said output signal information including amplitude, frequency of vibration information, comprises:
acquiring time domain setting information and basic time unit information of the output signal, wherein the time domain setting information comprises a constant number of basic time units;
and storing the output signal information in different time domains according to the time domain setting information and the basic time unit information.
3. A self-adjusting noise reduction device for a hearing aid system, comprising:
The acquisition module is used for generating an input signal from sound signals of the surrounding environment;
A filtering module for modifying the input signal and thereby producing an output signal, the modification comprising removing or reducing the amplitude of frequencies in a specific range of the input signal;
The statistics module is used for storing output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
the adjusting module is used for obtaining the change value of the output signal information in the front time domain and the rear time domain and changing the correction content of the input signal according to the change value;
Wherein, the adjustment module includes:
the first calculation module is used for calculating the standard deviation of the amplitude information of the output signal in a certain time domain;
the second calculation module is used for calculating the change value of the standard deviation in the front time domain and the rear time domain, wherein the change value comprises absolute value information of a difference value and positive and negative value information;
The judging module is used for judging the increase and decrease information of the correction content according to the positive and negative value information;
The third calculation module is used for calculating the multiple relation between the absolute value information of the difference value and the standard value;
the generation module is used for generating correction content execution information which accords with the increase and decrease information according to the multiple relation between the absolute value information of the difference value and the standard value;
wherein, the generating module includes:
The calculating sub-module is used for calculating the multiple relation between the average values of the amplitude information of the output signals in the front time domain and the rear time domain;
And the determining module is used for determining that the correction content removes or reduces the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relation and the increase and decrease information among the average values of the amplitude information of the output signal.
4. The apparatus of claim 3, wherein the statistics module comprises:
The acquisition module is used for acquiring time domain setting information and basic time unit information of the output signal, wherein the time domain setting information comprises a constant number of basic time units;
And the buffer module is used for storing the output signal information in different time domains according to the time domain setting information and the basic time unit information.
5. A self-adjusting noise reduction device for a hearing aid system, comprising:
A processor;
a memory for storing processor-executable instructions;
Wherein the processor is configured to:
Generating an input signal from a sound signal of the surrounding environment;
Modifying the input signal and thereby producing an output signal, the modification comprising removing or reducing the amplitude of the input signal at a frequency within a specific range;
storing output signal information in a certain time domain, wherein the output signal information comprises amplitude and vibration frequency information;
calculating the change value of the output signal information in the front and rear time domains, and changing the correction content of the input signal according to the change value;
the method for obtaining the change value of the output signal information in the front and rear time domains and changing the correction content of the input signal according to the change value comprises the following steps:
calculating standard deviation of amplitude information of the output signal in a timing domain;
calculating the variation value of the standard deviation in the front and rear time domains, wherein the variation value comprises absolute value information of a difference value and positive and negative value information;
Judging the increase and decrease information of the correction content according to the positive and negative value information;
calculating the multiple relation between the absolute value information of the difference and the standard value;
generating correction content execution information conforming to the increase and decrease information according to the multiple relation between the absolute value information of the difference and the standard value;
Wherein the generating the correction content execution information according with the increase and decrease information according with the multiple relation between the absolute value information of the difference and the standard value comprises the following steps:
Calculating the multiple relation between the average values of the amplitude information of the output signals in the front time domain and the rear time domain;
And determining the correction content to remove or reduce the multiple of the amplitude of the frequency in the specific range of the input signal according to the multiple relation between the average values of the amplitude information of the output signal and the increase and decrease information.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883645A (en) * | 2015-04-30 | 2015-09-02 | 深圳市冠旭电子有限公司 | Environment noise collection method and apparatus by noise reduction earphone |
| CN104902418A (en) * | 2014-03-07 | 2015-09-09 | 奥迪康有限公司 | Multi-microphone method for estimation of target and noise spectral variances |
| JP2016146576A (en) * | 2015-02-09 | 2016-08-12 | 角元 純一 | Measurement method, measurement tool, correction method, measurement application program and correction application program for reproduction characteristics of earphones |
| CN107393551A (en) * | 2017-08-04 | 2017-11-24 | 歌尔科技有限公司 | Audio defeat method and device |
| CN109616138A (en) * | 2018-12-27 | 2019-04-12 | 山东大学 | Blind separation method of speech signal and binaural hearing aid system based on segmented frequency selection |
| CN111415676A (en) * | 2020-03-10 | 2020-07-14 | 山东大学 | A Blind Source Separation Method and System for Initial Frequency Point Selection Based on Separation Matrix |
| CN112565997A (en) * | 2020-12-04 | 2021-03-26 | 可孚医疗科技股份有限公司 | Adaptive noise reduction method and device for hearing aid, hearing aid and storage medium |
| CN113259824A (en) * | 2021-05-14 | 2021-08-13 | 谷芯(广州)技术有限公司 | Real-time multi-channel digital hearing aid noise reduction method and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8161816B2 (en) * | 2009-11-03 | 2012-04-24 | Matthew Beck | Hearing test method and apparatus |
| US10037765B2 (en) * | 2013-10-08 | 2018-07-31 | Samsung Electronics Co., Ltd. | Apparatus and method of reducing noise and audio playing apparatus with non-magnet speaker |
| EP2928211A1 (en) * | 2014-04-04 | 2015-10-07 | Oticon A/s | Self-calibration of multi-microphone noise reduction system for hearing assistance devices using an auxiliary device |
-
2021
- 2021-08-21 CN CN202110963940.0A patent/CN113660594B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902418A (en) * | 2014-03-07 | 2015-09-09 | 奥迪康有限公司 | Multi-microphone method for estimation of target and noise spectral variances |
| JP2016146576A (en) * | 2015-02-09 | 2016-08-12 | 角元 純一 | Measurement method, measurement tool, correction method, measurement application program and correction application program for reproduction characteristics of earphones |
| CN104883645A (en) * | 2015-04-30 | 2015-09-02 | 深圳市冠旭电子有限公司 | Environment noise collection method and apparatus by noise reduction earphone |
| CN107393551A (en) * | 2017-08-04 | 2017-11-24 | 歌尔科技有限公司 | Audio defeat method and device |
| CN109616138A (en) * | 2018-12-27 | 2019-04-12 | 山东大学 | Blind separation method of speech signal and binaural hearing aid system based on segmented frequency selection |
| CN111415676A (en) * | 2020-03-10 | 2020-07-14 | 山东大学 | A Blind Source Separation Method and System for Initial Frequency Point Selection Based on Separation Matrix |
| CN112565997A (en) * | 2020-12-04 | 2021-03-26 | 可孚医疗科技股份有限公司 | Adaptive noise reduction method and device for hearing aid, hearing aid and storage medium |
| CN113259824A (en) * | 2021-05-14 | 2021-08-13 | 谷芯(广州)技术有限公司 | Real-time multi-channel digital hearing aid noise reduction method and system |
Non-Patent Citations (2)
| Title |
|---|
| Multi stage filter bank system for improved noise reduction in hearing aids;M. Poornima;《2016 International Conference on Circuit, Power and Computing Technologies (ICCPCT)》;全文 * |
| 助听器言语增强降噪方法的客观测试;胡旭君;史靓;田宏斌;;中国听力语言康复科学杂志(06);全文 * |
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