Volume self-adaptive adjusting method for air conduction hearing aid

Abstract

The invention relates to the field of hearing aids, in particular to an air conduction hearing aid volume self-adaptive adjusting method, which comprises a receiving module, a processing module, a playing module and an adjusting module, and comprises the following steps: receiving external environment sound through the receiving module, and when sound wave vibration generated by the external environment sound reaches a microphone, playing the sound wave through the processing module; according to the microphone, a volume threshold value is set through the adjusting module, the volume threshold value is set according to the hearing range of the patient, and the amplified sound is prevented from injuring the ears of the patient through the maximum threshold value; the amplified sound can be clearly heard by a patient under the control of the minimum threshold value, the electric signals are limited within the set threshold value during amplification, and each section of the amplified electric signals is inspected once to ensure that all the electric signals are within the threshold value range, so that the amplified sound is within the acceptable range of the patient and does not cause damage to ears.

Description

Technical Field

[0001] The present invention relates to the field of hearing aids, and in particular to a volume adaptive adjustment method for air conduction hearing aids. Background Art

[0002] A hearing aid is a small loudspeaker that amplifies sounds that are originally inaudible, 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 person can feel the sound, which brings great convenience to the hearing-impaired. A hearing aid mainly consists of five parts: microphone, amplifier, receiver, power supply and volume control. The amplifier in the hearing aid amplifies the received sound and then inputs it into the ears of the hearing-impaired person, so that the sound heard by the hearing-impaired person is clear and loud.

[0003] Existing air conduction hearing aids enable hearing-impaired patients to hear sounds clearly by amplifying sound waves. However, the ratio of the sound waves during amplification cannot be automatically adjusted. When the amplification ratio is set too high, some loud sounds may cause damage to the patient's ears. When the amplification ratio is set too low, some quiet sounds may be unacceptable to the patient. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a method for adaptively adjusting the volume of an air conduction hearing aid.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a method for adaptively adjusting the volume of an air conduction hearing aid, including a receiving module, a processing module, a playing module and an adjustment module, and the steps of the method are as follows: S1: Receives external ambient sound through the receiving module. When the sound waves generated by the external ambient sound reach the microphone, the membrane inside the microphone will vibrate, causing the capacitance value inside the microphone to change. This change will be converted into an electrical signal, which is then input into the processing module for processing; S2: The electrical signal is then amplified and noise-reduced by the processing module. The amplifier in the processing module increases the amplitude of the electrical signal. When the amplitude of the electrical signal is amplified proportionally, it can be better processed by subsequent processors or devices. All electrical signals are segmented according to the frequency and continuity of the fluctuations, and fluctuations that are beyond the human ear's hearing are removed. Each signal segment is amplified according to the original signal amplitude during amplification. After amplification, the electrical signal is transmitted to the adjustment module for adjustment; S3: A volume threshold is set through the adjustment module. The volume threshold is set according to the patient's hearing range. The maximum threshold prevents the amplified sound from causing damage to the patient's ears. The minimum threshold controls the amplified sound so that the patient can hear it clearly. The electrical signal is limited to the set threshold during amplification. At the same time, each segment of the amplified electrical signal is tested to ensure that all electrical signals are within the threshold range. S4: The adjusted electrical signal is input into the playback module, and the electrical signal is converted into sound waves through the speaker in the playback module. The playback module performs a secondary inspection when circulating the electrical signal to check whether the amplitude of the received electrical signal is within the predetermined threshold to prevent the converted sound waves from exceeding the threshold.

[0006] Specifically, the receiving module includes a microphone, and a film and a capacitor plate are arranged inside the microphone. When the film vibrates, the capacitance value inside the capacitor plate will cause a corresponding change.

[0007] Specifically, the processing module includes an amplification module and a noise reduction module. The amplification module amplifies the received electrical signal according to a ratio, and the amplification ratio is the same as the volume ratio accepted by a normal human ear and the volume ratio accepted by the patient.

[0008] Specifically, the playback module includes a speaker and a secondary inspection module. The secondary inspection module inspects the electrical signal received by the playback module to prevent the volume from exceeding the threshold due to an error in the electrical signal amplification ratio. The secondary inspected electrical signal is converted into a sound wave for broadcast through the speaker.

[0009] Specifically, the adjustment module includes a threshold setting module and a threshold detection module. The threshold setting module is used to set the sound wave safety threshold. First, the frequency of the sound waves that the patient can clearly hear is measured, and then the frequency of the safe sound waves that the patient can accept is measured. Then, the sound wave frequency between these two values ​​is set as the safety threshold. The amplified electrical signal is detected once by the threshold detection module. The amplitude of the electrical signal exceeding the safety threshold is proportionally reduced, and the amplitude of the electrical signal below the safety threshold is proportionally amplified.

[0010] Specifically, the safety threshold value set by the adjustment module needs to be adjusted regularly so that the safety threshold value is more adapted to the changes in the patient's condition.

[0011] Beneficial effects of the present invention: (1) The present invention provides a method for adaptively adjusting the volume of an air conduction hearing aid. A volume threshold is set by an adjustment module. The volume threshold is set according to the patient's hearing range. The maximum threshold prevents the amplified sound from causing damage to the patient's ears. The minimum threshold controls the amplified sound so that the patient can hear it clearly. When amplifying, the electrical signal is limited to the set threshold. At the same time, each segment of the amplified electrical signal is tested once to ensure that all electrical signals are within the threshold range, so that the amplified sound is within the patient's acceptable range and will not cause damage to the ears. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 1A module diagram of a volume adaptive adjustment method for an air conduction hearing aid provided by the present invention; Figure 2 This is a flow chart of a method for adaptively adjusting the volume of an air conduction hearing aid provided by the present invention. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0015] like Figure 1-Figure 2 As shown, the method for adaptively adjusting the volume of an air conduction hearing aid according to the present invention includes a receiving module, a processing module, a playing module, and an adjusting module. The steps of the method are as follows: S1: Receives external ambient sound through the receiving module. When the sound waves generated by the external ambient sound reach the microphone, the membrane inside the microphone will vibrate, causing the capacitance value inside the microphone to change. This change will be converted into an electrical signal, which is then input into the processing module for processing; S2: The electrical signal is then amplified and noise-reduced by the processing module. The amplifier in the processing module increases the amplitude of the electrical signal. When the amplitude of the electrical signal is amplified proportionally, it can be better processed by subsequent processors or devices. All electrical signals are segmented according to the frequency and continuity of the fluctuations, and fluctuations that are beyond the human ear's hearing are removed. Each signal segment is amplified according to the original signal amplitude during amplification. After amplification, the electrical signal is transmitted to the adjustment module for adjustment; S3: A volume threshold is set through the adjustment module. The volume threshold is set according to the patient's hearing range. The maximum threshold prevents the amplified sound from causing damage to the patient's ears. The minimum threshold controls the amplified sound so that the patient can hear it clearly. The electrical signal is limited to the set threshold during amplification. At the same time, each segment of the amplified electrical signal is tested to ensure that all electrical signals are within the threshold range. S4: The adjusted electrical signal is input into the playback module, and the electrical signal is converted into sound waves through the speaker in the playback module. The playback module performs a secondary inspection when circulating the electrical signal to check whether the amplitude of the received electrical signal is within the predetermined threshold to prevent the converted sound waves from exceeding the threshold.

[0016] Specifically, the receiving module includes a microphone, and a film and a capacitor plate are arranged inside the microphone. When the film vibrates, the capacitance value inside the capacitor plate will cause a corresponding change.

[0017] Specifically, the processing module includes an amplification module and a noise reduction module. The amplification module amplifies the received electrical signal according to a ratio, and the amplification ratio is the same as the volume ratio accepted by a normal human ear and the volume ratio accepted by the patient.

[0018] Specifically, the playback module includes a speaker and a secondary inspection module. The secondary inspection module inspects the electrical signal received by the playback module to prevent the volume from exceeding the threshold due to an error in the electrical signal amplification ratio. The electrical signal that has passed the secondary inspection is converted into a sound wave for broadcast through the speaker.

[0019] Specifically, the adjustment module includes a threshold setting module and a threshold detection module. The threshold setting module is used to set the sound wave safety threshold. First, the frequency of the sound waves that the patient can clearly hear is measured, and then the frequency of the safe sound waves that the patient can accept is measured. Then, the sound wave frequency between these two values ​​is set as the safety threshold. The amplified electrical signal is detected once through the threshold detection module. The amplitude of the electrical signal exceeding the safety threshold is proportionally reduced, and the amplitude of the electrical signal below the safety threshold is proportionally amplified.

[0020] Specifically, the safety threshold value set by the adjustment module needs to be adjusted regularly to make the safety threshold value more adaptable to changes in the patient's condition.

[0021] When in use, the external ambient sound is first received through the receiving module. When the sound wave vibration generated by the external ambient sound reaches the microphone, the membrane inside the microphone will vibrate, causing the capacitance value inside the microphone to change. This change will be converted into an electrical signal, and then the electrical signal is input into the processing module for processing. The electrical signal is then amplified and noise-reduced by the processing module. The amplifier in the processing module will increase the amplitude of the electrical signal. When the amplitude of the electrical signal is amplified proportionally, it can be better processed by subsequent processors or devices. All electrical signals are segmented according to the frequency and continuity of the fluctuation, and the fluctuations that are beyond the hearing of the human ear are removed. Each signal segment is amplified according to the original signal amplitude when amplified. After amplification, The electrical signal is transmitted to the adjustment module for adjustment, and a volume threshold is set by the adjustment module. The volume threshold is set according to the patient's hearing range. The maximum threshold prevents the amplified sound from causing damage to the patient's ears. The minimum threshold controls the amplified sound so that the patient can hear it clearly. The electrical signal is limited to the set threshold when amplifying. At the same time, each segment of the amplified electrical signal is tested once to ensure that all electrical signals are within the threshold range. The adjusted electrical signal is input to the playback module, and the electrical signal is converted into sound waves through the speaker in the playback module. The playback module performs a secondary test when circulating the electrical signal to check whether the amplitude of the received electrical signal is within the predetermined threshold to prevent the converted sound waves from exceeding the threshold.

[0022] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for adaptively adjusting the volume of an air conduction hearing aid, characterized in that , including a receiving module, a processing module, a playing module and an adjusting module, the steps of the method are as follows: S1: Receives external ambient sound through the receiving module. When the sound waves generated by the external ambient sound reach the microphone, the membrane inside the microphone will vibrate, causing the capacitance value inside the microphone to change. This change will be converted into an electrical signal, which is then input into the processing module for processing; S2: The electrical signal is then amplified and noise-reduced by the processing module. The amplifier in the processing module increases the amplitude of the electrical signal. When the amplitude of the electrical signal is amplified proportionally, it can be better processed by subsequent processors or devices. All electrical signals are segmented according to the frequency and continuity of the fluctuations, and fluctuations that are beyond the human ear's hearing are removed. Each signal segment is amplified according to the original signal amplitude during amplification. After amplification, the electrical signal is transmitted to the adjustment module for adjustment; S3: A volume threshold is set through the adjustment module. The volume threshold is set according to the patient's hearing range. The maximum threshold prevents the amplified sound from causing damage to the patient's ears. The minimum threshold controls the amplified sound so that the patient can hear it clearly. The electrical signal is limited to the set threshold during amplification. At the same time, each segment of the amplified electrical signal is tested to ensure that all electrical signals are within the threshold range. S4: The adjusted electrical signal is input into the playback module, and the electrical signal is converted into sound waves through the speaker in the playback module. The playback module performs a secondary inspection when circulating the electrical signal to check whether the amplitude of the received electrical signal is within the predetermined threshold to prevent the converted sound waves from exceeding the threshold.

2. The method for adaptively adjusting the volume of an air conduction hearing aid according to claim 1, wherein: The receiving module includes a microphone, wherein a film and a capacitor plate are arranged inside the microphone. When the film vibrates, the capacitance value inside the capacitor plate will be driven to change accordingly.

3. The method for adaptively adjusting the volume of an air conduction hearing aid according to claim 1, wherein: The processing module includes an amplification module and a noise reduction module. The amplification module amplifies the received electrical signal according to a ratio, and the amplification ratio is the same as the volume ratio accepted by a normal human ear and the volume ratio accepted by the patient.

4. The method for adaptively adjusting the volume of an air conduction hearing aid according to claim 1, wherein: The playback module includes a speaker and a secondary inspection module. The secondary inspection module inspects the electrical signal received by the playback module to prevent the volume from exceeding the threshold due to an error in the electrical signal amplification ratio. The secondary inspected electrical signal is converted into a sound wave and broadcast through the speaker.

5. The method for adaptively adjusting the volume of an air conduction hearing aid according to claim 1, wherein: The adjustment module includes a threshold setting module and a threshold detection module. The threshold setting module is used to set the sound wave safety threshold. First, the frequency of the sound waves that the patient can clearly hear is measured, and then the frequency of the safe sound waves that the patient can accept is measured. Then, the sound wave frequency between these two values ​​is set as the safety threshold. The amplified electrical signal is detected once by the threshold detection module. The amplitude of the electrical signal exceeding the safety threshold is proportionally reduced, and the amplitude of the electrical signal below the safety threshold is proportionally amplified.

6. The method for adaptively adjusting the volume of an air conduction hearing aid according to claim 1, characterized in that: The safety threshold value set by the adjustment module needs to be adjusted regularly to make the safety threshold value more adaptable to changes in the patient's condition.

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