Aerodynamic hearing aid sound processing method

Abstract

This invention relates to the field of hearing aids, specifically to a sound processing method for an air conduction hearing aid. The method includes a receiving module, an analysis module, a processing module, and a playback module. The receiving module receives sound waves from the external environment, converting all received sound waves into electrical signals. These converted electrical signals are sent to the analysis module in real time for analysis. The analysis identifies noise signals within the electrical signals and analyzes the magnitude of signal fluctuations. The processing module selects a corresponding amplification factor based on the amplitude of the sound waves. Different sound wave amplitudes require different amplification factors. When the wearer is in a noisy environment, the amplitude of sound waves in the surrounding environment is greater than in a quiet environment. By associating different sound wave amplitudes with different amplification factors, the hearing aid can adjust the volume of the played sound according to the ambient noise level, preventing the wearer's ears from being constantly under high load.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hearing aids, in particular to a sound processing method of air conduction hearing aid. BACKGROUND

[0002] The hearing aid is a small loudspeaker, which enlarges the originally inaudible sound, and then uses the residual hearing of the hearing-impaired person to send the sound to the auditory center of the brain, so that the hearing-impaired person can feel the sound, which brings great convenience to the hearing-impaired person. The hearing aid mainly consists of a microphone, an amplifier, a receiver, a power supply and a volume control, and the sound received by the microphone is amplified by the amplifier and then input to the ear of the hearing-impaired person, so that the hearing-impaired person can hear the sound clearly.

[0003] The existing air conduction hearing aid can make the hearing-impaired person hear the sound clearly by amplifying the sound wave, but the noise in the external environment will affect the sound wave emitted by the hearing aid. When the overall volume of the environment changes, the existing hearing aid cannot change the amplification ratio of the sound in time, so the wearer needs to keep the ear in a high load state in order to hear the sound clearly, which can easily cause the ear of the wearer to be injured again. SUMMARY

[0004] In view of the problem in the prior art that the wearer needs to keep the ear in a high load state in order to hear the sound clearly, which can easily cause the ear of the wearer to be injured again, the present application provides a sound processing method of air conduction hearing aid.

[0005] The technical scheme adopted by the present application to solve the technical problem is: a sound processing method of air conduction hearing aid, comprising a receiving module, an analysis module, a processing module and a playing module. The receiving module receives the sound wave in the external environment, and all the sound waves received by the receiving module are converted into electrical signals, and the electrical signals are sent to the analysis module in real time for analysis. The analysis module analyzes the noise signal in the electrical signal and analyzes the fluctuation size of the electrical signal. The processing module covers the electrical signal with the noise signal to avoid the influence of noise on the normal electrical signal, and amplifies the electrical signal with the appropriate amplification ratio according to the external environment. The playing module converts the normal electrical signal into a sound wave for playing. The steps of the method are as follows: S1: first, the microphone in the receiving module receives the external environment sound, when the sound wave vibration generated by the external environment sound reaches the microphone, the diaphragm inside the microphone will vibrate, causing the capacitance value inside the microphone to change, which will be converted into an electrical signal, and then the electrical signal is input to the analysis module for analysis. S2: After receiving the electrical signal, the analysis module compares it with the noise signal in the database. When the electrical signal being compared has the same noise signal, the electrical signal corresponding to the noise signal is marked. At the same time, the amplitude of the sound wave is calculated based on the fluctuation range of the electrical signal. Then, the electrical signal and the calculated amplitude are input into the processing module for processing. S3: After receiving the electrical signal, the processing module overlays the marked electrical signal with the same noise signal to eliminate the noise in the electrical signal. At the same time, it selects the corresponding amplification factor according to the amplitude of the sound wave. Different sound wave amplitudes have different amplification factors. When the wearer is in a noisy environment, the amplitude of the sound waves in the surrounding environment will be larger than that in a quiet environment. Different sound wave amplitudes are matched with different amplification factors. The electrical signal is amplified according to the amplification factor and then input into the playback module for playback. S4: After receiving the processed electrical signal, the playback module converts the electrical signal into a sound wave signal and emits it through the speaker.

[0006] Specifically, the receiving module includes multiple microphones, and when multiple microphones receive the same sound wave, the earliest sound wave is selected in chronological order.

[0007] Specifically, the amplification factor of the electrical signal in the processing module is adjusted every 5 seconds, so that the amplification factor of the electrical signal can be adjusted in real time according to the ambient volume.

[0008] Specifically, the analysis module takes the average value from the range of sound wave fluctuations that are audible to the human ear, and this value is the environmental comparison value.

[0009] Specifically, the amplification factor of the processing module is set between sound wave magnifications that the wearer can hear clearly without causing harm to the wearer.

[0010] Specifically, a blocking component is provided between the playback module and the receiving module to prevent the sound waves played by the playback module from being received by the receiving module.

[0011] The beneficial effects of this invention are: (1) The sound processing method of the air conduction hearing aid described in this invention selects the corresponding amplification factor according to the amplitude of the sound wave through the processing module. Different sound wave amplitudes have different amplification factors. When the wearer is in a noisy environment, the sound wave amplitude in the surrounding environment will be larger than the sound wave amplitude in a quiet environment. By matching different sound wave amplitudes with different amplification factors, the hearing aid can change the volume of the sound played according to the volume of the external environment, preventing the wearer's ears from being in a high-load state all the time. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Fig. 1 A block diagram of a sound processing method for an air conduction hearing aid provided by the present invention; Fig. 2 A flowchart of a sound processing method for an air conduction hearing aid provided by the present invention. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0015] like Figs. 1-2 As shown, the sound processing method for an air conduction hearing aid according to the present invention includes a receiving module, an analysis module, a processing module, and a playback module; The receiving module receives sound waves from the external environment. All sound waves received by the receiving module are converted into electrical signals, which are then sent to the analysis module for analysis in real time. The analysis module identifies and marks noise signals in electrical signals, and also analyzes the magnitude of fluctuations in the electrical signals. Sound, as a mechanical wave, is caused by the vibration of the surrounding medium due to the vibration of an object. When an object vibrates, air molecules also vibrate, thus forming sound waves. These vibrations are transmitted by compressing and rarefusing air molecules, eventually reaching people's ears. The size of the range of sound wave fluctuations represents the loudness of the sound.

[0016] The processing module covers the electrical signal and noise signal to prevent noise from affecting the normal electrical signal, and at the same time selects an appropriate amplification factor to amplify the electrical signal according to the external environment. The playback module converts normal electrical signals into sound waves for playback. The steps of this method are as follows: S1: First, the external ambient sound is received by the microphone in the receiving module. When the sound wave vibration generated by the external ambient sound reaches the microphone, the diaphragm inside the microphone will vibrate accordingly, causing the capacitance value inside the microphone to change. This change will be converted into an electrical signal, and then the electrical signal will be input into the analysis module for analysis. S2: After receiving the electrical signal, the analysis module compares it with the noise signal in the database. When the electrical signal being compared has the same noise signal, the electrical signal corresponding to the noise signal is marked. At the same time, the amplitude of the sound wave is calculated based on the fluctuation range of the electrical signal. Then, the electrical signal and the calculated amplitude are input into the processing module for processing. S3: After receiving the electrical signal, the processing module overlays the marked electrical signal with the same noise signal to eliminate the noise in the electrical signal. At the same time, it selects the corresponding amplification factor according to the amplitude of the sound wave. Different sound wave amplitudes have different amplification factors. When the wearer is in a noisy environment, the amplitude of the sound waves in the surrounding environment will be larger than that in a quiet environment. Different sound wave amplitudes are matched with different amplification factors. The electrical signal is amplified according to the amplification factor and then input into the playback module for playback. S4: After receiving the processed electrical signal, the playback module converts the electrical signal into a sound wave signal and emits it through the speaker.

[0017] Specifically, the receiving module includes multiple microphones, and when multiple microphones receive the same sound wave, the earliest sound wave is selected in chronological order.

[0018] Specifically, the amplification factor of the electrical signal in the processing module is adjusted every 5 seconds, so that the amplification factor of the electrical signal can be adjusted in real time according to the ambient volume.

[0019] Specifically, the analysis module takes the average value from the range of sound wave fluctuations that are audible to the human ear, and this value is the environmental comparison value.

[0020] Specifically, the amplification factor of the processing module is set between sound wave magnifications that the wearer can hear clearly without causing harm to the wearer.

[0021] The maximum, minimum, and median values ​​are selected from the safe amplification range that the wearer can clearly hear. These values ​​are the amplification values ​​used by the processing module. When the value of the electrical signal range of the sound wave received by the analysis module is higher than the environmental contrast value, the median value is selected. When the value of the electrical signal range of the sound wave received by the analysis module is lower than the environmental contrast value, the minimum value is selected. When the wearer feels that they cannot hear the sound clearly, they can manually control the amplification to select the maximum value.

[0022] Specifically, a blocking component is provided between the playback module and the receiving module to prevent the sound waves played by the playback module from being received by the receiving module.

[0023] In operation, the system first receives ambient sound through the microphone in the receiving module. When the sound waves generated by the ambient sound reach the microphone, the diaphragm inside the microphone vibrates, causing a change in the capacitance value within the microphone. This change is converted into an electrical signal, which is then input to the analysis module for analysis. The analysis module receives the electrical signal and compares it with noise signals in the database. When the compared electrical signals contain the same noise signal, the corresponding electrical signal is marked. Simultaneously, the amplitude of the sound wave is calculated based on the fluctuation range of the electrical signal. Finally, the electrical signal and the calculated amplitude are input for processing. The processing module receives the electrical signal and overlays the marked electrical signal with the same noise signal to eliminate the noise in the electrical signal. At the same time, it selects the corresponding amplification factor according to the amplitude of the sound wave. Different sound wave amplitudes require different amplification factors. When the wearer is in a noisy environment, the amplitude of the sound waves in the surrounding environment will be larger than that in a quiet environment. Different sound wave amplitudes are matched with different amplification factors. The electrical signal is amplified according to the amplification factor and then input into the playback module for playback. After receiving the processed electrical signal, the playback module converts the electrical signal into a sound wave signal and emits it through the speaker.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sound processing method for an air conduction hearing aid, characterized in that... It includes a receiving module, an analysis module, a processing module, and a playback module; The receiving module receives sound waves from the external environment. All sound waves received by the receiving module are converted into electrical signals, which are then sent to the analysis module for analysis in real time. The analysis module identifies and marks noise signals in electrical signals, and also analyzes the magnitude of fluctuations in the electrical signals. The processing module covers the electrical signal and noise signal to prevent noise from affecting the normal electrical signal, and at the same time selects an appropriate amplification factor to amplify the electrical signal according to the external environment. The playback module converts normal electrical signals into sound waves for playback. The steps of this method are as follows: S1: First, the external ambient sound is received by the microphone in the receiving module. When the sound wave vibration generated by the external ambient sound reaches the microphone, the diaphragm inside the microphone will vibrate accordingly, causing the capacitance value inside the microphone to change. This change will be converted into an electrical signal, and then the electrical signal will be input into the analysis module for analysis. S2: After receiving the electrical signal, the analysis module compares it with the noise signal in the database. When the electrical signal being compared has the same noise signal, the electrical signal corresponding to the noise signal is marked. At the same time, the amplitude of the sound wave is calculated based on the fluctuation range of the electrical signal. Then, the electrical signal and the calculated amplitude are input into the processing module for processing. S3: After receiving the electrical signal, the processing module overlays the marked electrical signal with the same noise signal to eliminate the noise in the electrical signal. At the same time, it selects the corresponding amplification factor according to the amplitude of the sound wave. Different sound wave amplitudes have different amplification factors. When the wearer is in a noisy environment, the amplitude of the sound waves in the surrounding environment will be larger than that in a quiet environment. Different sound wave amplitudes are matched with different amplification factors. The electrical signal is amplified according to the amplification factor and then input into the playback module for playback. S4: After receiving the processed electrical signal, the playback module converts the electrical signal into a sound wave signal and emits it through the speaker.

2. The sound processing method for an air conduction hearing aid according to claim 1, characterized in that: The receiving module includes multiple microphones. When multiple microphones receive the same sound wave, the earliest sound wave is selected in chronological order.

3. The sound processing method for an air conduction hearing aid according to claim 1, characterized in that: The amplification factor of the electrical signal in the processing module is adjusted every 5 seconds, so that the amplification factor of the electrical signal can be adjusted in real time according to the ambient volume.

4. The sound processing method for an air conduction hearing aid according to claim 1, characterized in that: The analysis module takes the average value from the range of sound wave fluctuations that are audible to the human ear; this value is the environmental comparison value.

5. The sound processing method for an air conduction hearing aid according to claim 1, characterized in that: The amplification factor of the processing module is set between sound wave magnifications that the wearer can hear clearly without causing harm to the wearer.

6. The sound processing method for an air conduction hearing aid according to claim 1, characterized in that: A blocking component is provided between the playback module and the receiving module to prevent the sound waves played by the playback module from being received by the receiving module.

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