Hearing aid noise anti-howling method

Abstract

The invention relates to the field of hearing aids, in particular to a hearing aid noise anti-howling method, which comprises the following steps of: firstly, starting a self-fitting function of a hearing aid, outputting a digital signal inside the hearing aid, converting the digital signal into an electric signal through a digital-to-analog converter, outputting the electric signal through a loudspeaker, and enabling the loudspeaker to output sound for detection, the detected sound is received by the microphone after being emitted, a digital signal is output from the hearing aid, the digital signal is converted into an electric signal through the digital-to-analog converter, and then the electric signal is output through the loudspeaker, so that the loudspeaker outputs the sound for detection, and the detected sound is received by the microphone after being emitted. The microphone inputs the received sound into the digital-to-analog converter to be converted into a digital signal, the digital signal is input into the detection chip to be detected, and the detection chip is used for detecting the difference between the digital signal and the digital signal, so that whether the loudspeaker of the hearing aid can make a sound correctly or not can be detected.

Description

Technical Field

[0001] The invention relates to the field of hearing aids, in particular to a method for preventing hearing aids from howling. Background Art

[0002] A hearing aid is a small loudspeaker that amplifies sounds that are originally inaudible, and then uses the hearing-impaired person's residual hearing to send the sounds to the auditory center of the brain, so that the person can feel the sounds, bringing 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, making the sound heard by the hearing-impaired person clear and loud.

[0003] When using a hearing aid, a microphone is needed to receive audio, which is then played through a speaker after processing. When the microphone receives the audio emitted by the speaker, howling will occur. Howling is a type of feedback sound. When the howling passes through the hearing aid multiple times, a large power output will be generated, which may exceed the tolerance range of the sound reinforcement equipment and burn out the power amplifier and sound-generating equipment. Existing hearing aids can interrupt the howling cycle by analyzing the sound waves, but in the early stage of the howling, it will still cause the user to feel uncomfortable, and the howling will cause part of the audio to be disturbed at the same time, which will eventually cause the hearing aid to produce noise. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a method for preventing howling noise from a hearing aid.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a method for preventing hearing aid noise from howling, comprising the following steps: (1) First, the hearing aid microphone is activated to receive audio signals from the surrounding environment. The audio signals are transmitted to the microphone and converted into electrical signals. The electrical signals are then input into an analog-to-digital converter and converted into digital signals. The digital signals are then detected and processed by the processor. (2) Repetitive short signals in the same time frequency band in the digital signal are deleted, and then the processed digital signal is converted into an electrical signal and input into the audio amplifier. The audio amplifier amplifies the electrical signal and inputs it into the speaker for playback. The speaker is provided with a volume controller, and the volume controller is provided with maximum and minimum sound wave thresholds. When the audio fluctuation of the electrical signal exceeds the threshold of the volume controller, the volume controller automatically processes the sound wave so that the sound finally emitted by the speaker remains within a predetermined range; (3) When the processor processes the digital signal, it will record the digital signal. When processing the newly received digital signal, it will compare the stored digital signal with the digital signal being processed. When there are repeated situations in the digital signals at both ends, the repeated frequency bands in the digital signal being processed will be directly deleted; (4) When deleting repeated sound frequency bands, a reminder message will be sent to remind the wearer that the speaker is leaking sound, so that the wearer can adjust the hearing aid in time to prevent the howling from continuing to occur and putting pressure on the processor's processing work.

[0006] Specifically, when processing digital signals, the processor will separate all digital signals according to the intervals of receiving time, and record each segment of received digital signals according to time.

[0007] Specifically, when processing repeated audio, the processor will first compare the recording time of the audio at both ends. When the interval between the recording times exceeds 3 seconds, the audio will not be deleted and will still be played through the speaker.

[0008] Specifically, after receiving the digital signal, the processor will transmit the digital signal to the cloud device through the network in chronological order, so that the user can control the repeated listening of the sound through the mobile phone program.

[0009] Specifically, the threshold value set by the volume controller can be adjusted to a suitable range according to the hearing condition of the user to prevent the user from feeling uncomfortable.

[0010] Specifically, when receiving audio, the processor will separate the audio received at the same time, repair and supplement it according to the frequency of the sound wave, and prevent the played sound from containing noise.

[0011] Beneficial effects of the present invention: (1) The present invention provides a method for preventing hearing aid noise from howling, which converts the processed digital signal into an electrical signal and inputs it into an audio amplifier. The audio amplifier amplifies the electrical signal and inputs it into a speaker for playback. The speaker is provided with a volume controller, and the volume controller is provided with maximum and minimum sound wave thresholds. When the audio fluctuation of the electrical signal exceeds the threshold of the volume controller, the volume controller automatically processes the sound wave so that the sound finally emitted by the speaker is kept within a predetermined range, thereby preventing the howling sound from being too loud and causing discomfort to the user.

[0012] (2) The method for preventing hearing aid noise from howling described in the present invention separates the digital signals according to the intervals of reception time when processing the digital signals through the processor, and records each segment of the received digital signals according to time. After receiving the digital signals, the processor transmits the digital signals to the cloud device through the network in chronological order, so that the user can control the repeated listening of the sounds heard through the mobile phone program, which is convenient for the user to query the required audio. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a module diagram of a hearing aid noise howling prevention method provided by the present invention. Implementation

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0016] like Figure 1 As shown, a hearing aid noise howling prevention method described in the present invention comprises the following steps: (1) First, the hearing aid microphone is activated to receive audio signals from the surrounding environment. The audio signals are transmitted to the microphone and converted into electrical signals. The electrical signals are then input into an analog-to-digital converter and converted into digital signals. The digital signals are then detected and processed by the processor. (2) Repetitive short signals in the same time frequency band in the digital signal are deleted, and then the processed digital signal is converted into an electrical signal and input into the audio amplifier. The audio amplifier amplifies the electrical signal and inputs it into the speaker for playback. The speaker is provided with a volume controller, and the volume controller is provided with maximum and minimum sound wave thresholds. When the audio fluctuation of the electrical signal exceeds the threshold of the volume controller, the volume controller automatically processes the sound wave so that the sound finally emitted by the speaker remains within a predetermined range; (3) When the processor processes the digital signal, it will record the digital signal. When processing the newly received digital signal, it will compare the stored digital signal with the digital signal being processed. When there are repeated situations in the digital signals at both ends, the repeated frequency bands in the digital signal being processed will be directly deleted; (4) When deleting repeated sound frequency bands, a reminder message will be sent to remind the wearer that the speaker is leaking sound, so that the wearer can adjust the hearing aid in time to prevent the howling from continuing to occur and putting pressure on the processor's processing work.

[0017] When processing digital signals, the processor will separate all digital signals according to the intervals of receiving time, and record each segment of received digital signals according to time.

[0018] When processing repeated audio, the processor will first compare the recording time of the audio at both ends. When the interval of the recording time exceeds 3 seconds, it will not be deleted and will still be played through the speaker.

[0019] After receiving the digital signal, the processor will transmit the digital signal to the cloud device through the network in chronological order, so that the user can control the repeated listening of the sound through the mobile phone program.

[0020] The threshold value set by the volume controller can be adjusted and can be adjusted to a suitable range according to the user's hearing condition to prevent the user from feeling uncomfortable.

[0021] When receiving audio, the processor will separate the audio received at the same time, repair and supplement it according to the frequency of the sound wave, and prevent the played sound from containing noise.

[0022] When in use, first start the microphone of the hearing aid, and receive the audio signal in the surrounding environment through the microphone. The audio signal is transmitted into the microphone and converted into an electrical signal. The electrical signal is then input into the analog-to-digital converter and converted into a digital signal. The digital signal is detected and processed by the processor, and the short signals repeated in the same time frequency band in the digital signal are deleted. The processed digital signal is then converted into an electrical signal and input into the audio amplifier. The audio amplifier amplifies the electrical signal and inputs it into the speaker for playback. The speaker is provided with a volume controller, and the volume controller is provided with maximum and minimum sound wave thresholds. When the audio fluctuation of the electrical signal exceeds the threshold of the volume controller The volume controller automatically processes the sound waves so that the final sound emitted by the speaker remains within a predetermined range. When the processor processes the digital signal, it will record the digital signal. When processing the newly received digital signal, it will compare the stored digital signal with the digital signal being processed. When there are repeated repetitions in the digital signals at both ends, the repeated frequency bands in the digital signal being processed will be directly deleted. When the repeated sound frequency bands are deleted, a reminder message will be issued to remind the wearer that the speaker has a sound leakage problem, so that the wearer can adjust the hearing aid in time to prevent the howling from continuing to occur and causing pressure on the processor's processing work.

[0023] The above shows and describes 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 above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for preventing hearing aid noise from howling, characterized in that: The following steps are involved: (1) First, the hearing aid microphone is activated to receive audio signals from the surrounding environment. The audio signals are transmitted to the microphone and converted into electrical signals. The electrical signals are then input into an analog-to-digital converter and converted into digital signals. The digital signals are then detected and processed by the processor. (2) Repetitive short signals in the same time frequency band in the digital signal are deleted, and then the processed digital signal is converted into an electrical signal and input into the audio amplifier. The audio amplifier amplifies the electrical signal and inputs it into the speaker for playback. The speaker is provided with a volume controller, and the volume controller is provided with maximum and minimum sound wave thresholds. When the audio fluctuation of the electrical signal exceeds the threshold of the volume controller, the volume controller automatically processes the sound wave so that the sound finally emitted by the speaker remains within a predetermined range; (3) When the processor processes the digital signal, it will record the digital signal. When processing the newly received digital signal, it will compare the stored digital signal with the digital signal being processed. When there are repeated situations in the digital signals at both ends, the repeated frequency bands in the digital signal being processed will be directly deleted; (4) When deleting repeated sound frequency bands, a reminder message will be sent to remind the wearer that the speaker is leaking sound, so that the wearer can adjust the hearing aid in time to prevent the howling from continuing to occur and putting pressure on the processor's processing work.

2. A hearing aid noise howling prevention method according to claim 1, characterized in that: When processing digital signals, the processor will separate all digital signals according to the intervals of receiving time, and record each segment of received digital signals according to time.

3. The method for preventing hearing aid noise from howling according to claim 1, characterized in that: When processing repeated audio, the processor will first compare the recording time of the audio at both ends. When the interval of the recording time exceeds 3 seconds, it will not be deleted and will still be played through the speaker.

4. The method for preventing hearing aid noise from howling according to claim 1, characterized in that: After receiving the digital signal, the processor will transmit the digital signal to the cloud device through the network in chronological order, so that the user can control the repeated listening of the sound through the mobile phone program.

5. The method for preventing hearing aid noise from howling according to claim 1, characterized in that: The threshold value set by the volume controller can be adjusted and can be adjusted to a suitable range according to the user's hearing condition to prevent the user from feeling uncomfortable.

6. The method for preventing hearing aid noise from howling according to claim 1, characterized in that: When receiving audio, the processor will separate the audio received at the same time, repair and supplement it according to the frequency of the sound wave, and prevent the played sound from containing noise.

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