Copyright Protection Method, System, Device and Storage Medium for Digital Hearing Aids

Abstract

The present application relates to a copyright protection method, device, equipment and storage medium for a digital hearing aid. The method includes: encoding each Chinese character in the obtained copyright information according to the Chinese national standard GB2312, and then converting the encoding into a decimal representation to obtain a first digital copyright information corresponding to the copyright information. Then, performing a non-linear transformation on the first digital copyright information to obtain a second digital copyright information, transforming a pre-stored initial voice signal according to the second data copyright information to obtain a new voice signal, and using the initial voice signal and the new voice signal as an encrypted voice signal of the copyright information. By using this method, the copyright information can be encrypted and output, effectively preventing piracy.

Description

Technical Field

[0001] The present application relates to the technical field of hearing aids, and in particular, to a copyright protection method, system, device, and storage medium for digital hearing aids. Background Art

[0002] Due to the limitations of the current medical level and medical conditions, wearing a digital hearing aid is currently the best option for patients with hearing loss.

[0003] Compared with people with normal hearing, due to the damage of the auditory organs and the decline of speech recognition ability, the speech understanding ability of patients with hearing loss is lower in a noisy environment. By using various language algorithms such as noise reduction algorithms and loudness compensation algorithms, the impact of noise on hearing patients can be reduced, and the speech understanding ability of patients in various environments can be improved. Therefore, these language processing algorithms are an essential and important part of digital hearing aids and are of great significance for improving the performance of digital hearing aids.

[0004] These algorithms are often directly integrated on the hearing aid device and are easily pirated, causing huge property losses to hearing aid manufacturers. Summary of the Invention

[0005] Based on this, it is necessary to provide a method, system, device, and storage medium that can protect the copyright of hearing aids for the above technical problems.

[0006] A copyright protection method for digital hearing aids, the copyright protection method is used to encrypt the copyright information of digital hearing aids, and the method includes:

[0007] Obtain copyright information;

[0008] Encode each Chinese character in the copyright information according to the Chinese national standard GB2312, and then convert the encoding to decimal for expression to obtain the first digital copyright information corresponding to the copyright information;

[0009] Perform a non-linear transformation on the first digital copyright information to obtain the second digital copyright information;

[0010] Obtain a pre-stored initial voice signal, and transform the initial voice signal according to the second data copyright information to obtain a new voice signal, where the initial voice signal and the new voice signal are encrypted voice signals of the copyright information.

[0011] In one embodiment, the copyright information includes manufacturer information and software version information, the manufacturer information is expressed in Chinese characters, and the software version information is represented by 6 digits from 0 to 9;

[0012] The first digital copyright information includes the numbers obtained by encoding each Chinese character in the manufacturer information according to the Chinese national standard GB2312 and then converting the encoding into decimal representation, and the software version information expressed by six numbers arranged after the manufacturer information.

[0013] In one embodiment, when performing non-linear transformation on the first digital copyright information, the following formula is applied:

[0014]

[0015] Where Vec1 is the first digital copyright information, Vec2 is the second digital copyright information, and α ∈ (0, 1) is a regulation parameter.

[0016] In one embodiment, the transformation of the initial voice signal according to the second data copyright information to obtain a new voice signal includes:

[0017] Performing Fourier transform on the initial voice signal to obtain a first voice signal, and dividing the first voice signal into 16 subbands;

[0018] Statistical analysis is performed on the amplitude information of each subband, and the amplitude of each subband is adjusted according to the second data copyright information to obtain new subbands, and the new subbands are synthesized to obtain a second voice signal;

[0019] Performing inverse Fourier transform on the second voice signal to obtain a new voice signal.

[0020] In one embodiment, the copyright protection method further includes decrypting the encrypted voice signal to obtain the copyright information, including:

[0021] Obtaining the encrypted voice signal;

[0022] Dividing the encrypted voice signal into a first encrypted voice signal and a second encrypted voice signal with the same duration;

[0023] Performing Fourier transform on the first encrypted signal and the second encrypted signal respectively to obtain a first Fourier signal and a second Fourier signal;

[0024] Dividing the first Fourier signal and the second Fourier signal into 16 subbands respectively, and calculating the amplitude of each subband;

[0025] Calculating a transformation coefficient according to the amplitude of the subband corresponding to the first Fourier signal and the amplitude of the subband corresponding to the second Fourier signal;

[0026] Perform a non - linear inverse transformation on the transformation system to obtain third digital copyright information, and obtain the copyright information according to the third data copyright information.

[0027] This application also provides a copyright protection system for a digital hearing aid, including a digital hearing aid and a copyright verification device that communicate with each other;

[0028] The digital hearing aid prestores an encrypted voice signal obtained by encrypting copyright information using the above - mentioned copyright protection method, and after obtaining a copyright broadcast instruction, broadcasts the encrypted voice signal according to the copyright broadcast instruction;

[0029] The copyright verification device receives the encrypted voice signal, decrypts the encrypted voice signal using the above - mentioned copyright protection method to obtain copyright information, and verifies the data hearing aid according to the copyright information.

[0030] In one embodiment, the copyright broadcast instruction is triggered by holding down the '+' key or '-' key for adjusting the volume of the digital hearing aid for 20 seconds.

[0031] A computer device includes a memory and a processor. When the processor executes a computer program, the following steps are implemented:

[0032] Obtain copyright information;

[0033] Encode each Chinese character in the copyright information according to the Chinese national standard GB2312, and then convert the encoding to decimal for expression to obtain first digital copyright information corresponding to the copyright information;

[0034] Perform a non - linear transformation on the first digital copyright information to obtain second digital copyright information;

[0035] Obtain a prestored initial voice signal, and perform a transformation on the initial voice signal according to the second data copyright information to obtain a new voice signal. The initial voice signal and the new voice signal are encrypted voice signals of copyright information.

[0036] A computer - readable storage medium stores a computer program. When the computer program is executed by a processor, the following steps are implemented:

[0037] Obtain copyright information;

[0038] Encode each Chinese character in the copyright information according to the Chinese national standard GB2312, and then convert the encoding to decimal for expression to obtain first digital copyright information corresponding to the copyright information;

[0039] Perform a non-linear transformation on the first digital copyright information to obtain second digital copyright information;

[0040] Obtain a pre-stored initial voice signal, and perform a transformation on the initial voice signal according to the second data copyright information to obtain a new voice signal, where the initial voice signal and the new voice signal are encrypted voice signals of the copyright information.

[0041] The above copyright protection method, device, equipment, and storage medium for digital hearing aids encode each Chinese character in the obtained copyright information according to the Chinese national standard GB2312, and then convert the encoding into a decimal representation to obtain the first digital copyright information corresponding to the copyright information. Then, perform a non-linear transformation on the first digital copyright information to obtain the second digital copyright information. Perform a transformation on the pre-stored initial voice signal according to the second data copyright information to obtain a new voice signal, and the initial voice signal and the new voice signal are encrypted voice signals of the copyright information. Encrypt and output the copyright information in this way, effectively preventing piracy. Description of the Drawings

[0042] Figure 1 Is a schematic flowchart of a copyright protection method for digital hearing aids in an embodiment;

[0043] Figure 2 Is a schematic flowchart of decryption in a copyright protection method for digital hearing aids in an embodiment;

[0044] Figure 3 Is an internal structure diagram of a computer device in an embodiment. Detailed Description of the Embodiment

[0045] In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0046] As Figure 1 shown, a copyright protection method for digital hearing aids is provided. The copyright protection method is used to encrypt the copyright information of digital hearing aids and includes the following steps:

[0047] Step S100, obtain copyright information;

[0048] Step S110, encode each Chinese character in the copyright information according to the Chinese national standard GB2312, and then convert the encoding into a decimal representation to obtain the first digital copyright information corresponding to the copyright information;

[0049] Step S120, perform a non-linear transformation on the first digital copyright information to obtain second digital copyright information;

[0050] In step S130, obtain the pre-stored initial voice signal, and transform the initial voice signal according to the second data copyright information to obtain a new voice signal. The initial voice signal and the new voice signal are encrypted voice signals of the copyright information.

[0051] In step S100, the copyright information of the digital hearing aid includes the manufacturer information and software version information of the digital hearing aid, etc. The manufacturer information is expressed in Chinese characters, and the software version information is represented by 6 digits from 0 to 9.

[0052] In step S110, the first digital copyright information includes the numbers obtained by encoding each Chinese character in the manufacturer information according to the Chinese national standard GB2312 and then converting the encoding to decimal for expression, and the software version information represented by 6 digits arranged after the manufacturer information.

[0053] Specifically, for the Chinese character information in the copyright information, such as the manufacturer name, etc., each Chinese character is converted into a 5-digit Chinese national standard GB2312 encoding. Taking the two characters "Jinhao" as an example, the national standard encodings in the Chinese national standard GB2312 are BDF5 (Jin) and BAC3 (Hao) in hexadecimal respectively, and then converting them to decimal are 48629 (Jin) and 47811 (Hao) respectively.

[0054] In the copyright information, in addition to the manufacturer name information, there is also software version information, etc., and these information are represented by 6 digits from 0 to 9. For example, the software version information is represented by 121375. In this way, the copyright information is converted into the first digital copyright information represented by numbers (4862947811121375), and then the first digital copyright information is further encrypted.

[0055] In step S120, when performing a non-linear transformation on the first digital copyright information, the following formula is applied:

[0056]

[0057] In formula (1), Vec1 is the first digital copyright information, Vec2 is the second digital copyright information, and α ∈ (0,1) is a regulation parameter, which can encrypt and protect the first digital copyright information while compressing the value space.

[0058] In step S130, a segment of initial voice signal is also pre-stored, and this initial voice signal is denoted as y i(n), where i represents the frame sequence number and n represents the number of sampling points. Transforming the initial speech signal according to the second data copyright information to obtain a new speech signal includes: performing a Fourier transform on the initial speech signal to obtain a first speech signal, dividing the first speech signal into 16 subbands, statistically analyzing the amplitude information of each subband, adjusting the amplitude of each subband according to the second data copyright information to obtain new subbands, synthesizing the new subbands to obtain a second speech signal, and performing an inverse Fourier transform on the second speech signal to obtain a new speech signal.

[0059] Specifically, perform a Fourier transform on the speech signal y i (n) to obtain Y i (k), where k represents the frequency point. Divide the signal Y i (k) into 16 subbands, denoted as {t i,j (k)|j = 1,…,16}, and the bandwidth of each subband signal is 1 / 16 of the original signal bandwidth. For each subband t i,j (k), statistically analyze its amplitude information Adjust the amplitude of each subband according to Vec2, as shown in formula (2), to obtain a new subband sequence, denoted as {newt i,j (k)|j = 1,…,16}.

[0060]

[0061] In formula (2), is the amplitude information of the new subband newt i,j (k).

[0062] Use the new subbands {newt i,j (k)|j = 1,…,16} to synthesize a new signal denoted as newY i (k). Perform an inverse Fourier transform on newY i (k) to obtain the new speech signal newy i (n).

[0063] In this way, the copyright information and the pre-stored initial speech signal are encrypted to obtain an encrypted speech signal, which consists of the initial speech signal and the new speech signal.

[0064] As Figure 2 shown, the copyright protection method further includes decrypting the encrypted speech signal to obtain the copyright information, including:

[0065] Step S200, obtain the encrypted speech signal;

[0066] Step S210, divide the encrypted speech signal into a first encrypted speech signal and a second encrypted speech signal with the same duration;

[0067] Step S220: Perform Fourier transforms on the first encrypted signal and the second encrypted signal respectively to obtain a first Fourier signal and a second Fourier signal;

[0068] Step S230: Divide the first Fourier signal and the second Fourier signal into 16 subbands respectively, and calculate the amplitude of each subband;

[0069] Step S240: Calculate transformation coefficients based on the amplitudes of the subbands corresponding to the first Fourier signal and the amplitudes of the subbands corresponding to the second Fourier signal;

[0070] Step S250: Perform a non-linear inverse transform on the transformation system to obtain third digital copyright information, and obtain copyright information based on the third data copyright information.

[0071] Specifically, during the process of steps S200 - S230, after receiving the encrypted voice signal, it is denoted as p i (n). The signal p i (n) is evenly divided into two segments according to the duration, and is denoted as p1 i (n) and p2 i (n) respectively. Fourier transforms are performed on p1 i (n) and p2 i (n) respectively to obtain a first Fourier signal P1 i (k) and a second Fourier signal P2 i (k), where k represents the frequency point. Then, P1 i (k) and P2 i (k) are respectively divided into 16 subbands, and are denoted as {s1 i,j (k)|j = 1, …, 16} and {s2 i,j (k)|j = 1, …, 16} respectively. Among them, the bandwidth of each subband signal is 1 / 16 of the bandwidth of the original signal. Then, for each subband s1 i,j (k) and s2 i,j (k), their amplitude information is statistically calculated, and is denoted as β1 i,j and β2 i,j .

[0072] In this step S240, the transformation coefficient of the amplitude is calculated through formula (3):

[0073] h1(j) = β2 i,j / β1 i,j (3)

[0074] In formula (3), h1 is the transformation coefficient, β2 i,j is the amplitude of the subband corresponding to the second Fourier signal, and β1 i,jis the amplitude of the sub-band corresponding to the first Fourier signal, and j = 1, …, 16, representing 16 different sub-bands.

[0075] In step S250, the third digital copyright information h2 is obtained by performing a non-linear inverse transformation on the transformation coefficient h1 through formula (4):

[0076]

[0077] In formula (4), α ∈ (0, 1) is a regulation parameter.

[0078] Next, the first ten digits of the obtained third digital copyright information h2 are looked up in the Chinese national standard GB2312 encoding for Chinese characters to obtain the manufacturer information of the digital hearing aid. The last six digits of the copyright information h2 represent other information such as the software version number. Thus, all the copyright information of the hearing aid is obtained.

[0079] In the above copyright protection method for digital hearing aids, by encrypting the copyright information using the algorithm in this method, the output of the copyright information can be provided at any time during the use of the hearing aid, effectively preventing piracy. Moreover, the algorithm has low complexity and consumes less resources, can meet the requirements of real-time processing, is very suitable for the application market of hearing aids, and has high practical value.

[0080] This application also provides a copyright protection system for digital hearing aids, including a digital hearing aid and a copyright verification device that communicate with each other;

[0081] Among them, the digital hearing aid pre-stores the encrypted voice signal obtained by encrypting the copyright information using the above copyright protection method, and after obtaining the copyright broadcast instruction, broadcasts the encrypted voice signal according to the copyright broadcast instruction.

[0082] Among them, the copyright verification device receives the encrypted voice signal, decrypts the encrypted voice signal using the above copyright protection method to obtain the copyright information, and verifies the data hearing aid according to the copyright information.

[0083] In this embodiment, the encryption method and the decryption method in the copyright protection method are respectively applied in the digital hearing aid and the copyright verification device. Among them, before the digital hearing aid leaves the factory, the copyright is encrypted and stored according to the encryption method. During the actual application process after leaving the factory, after receiving the copyright broadcast instruction, the copyright information playback function is called to broadcast the pre-stored encrypted voice signal. The copyright verification device decrypts the encrypted voice signal according to the decryption method after receiving it, and finally obtains the copyright information, and then verifies it by comparing the copyright information with the identifier on the digital hearing aid to complete the verification.

[0084] In one embodiment, the copyright broadcast instruction is triggered by holding down the \"+\" or \"-\" key for adjusting the volume of the digital hearing aid for 20 seconds. In other embodiments, the copyright broadcast instruction can also be triggered in another way.

[0085] In this embodiment, the copyright verification device can be understood as any carrier having a verification function. For example, a mobile terminal, etc., in which there is software for decrypting using the above copyright protection method.

[0086] It should be understood that although Figure 1-2 each step in the flowchart of Figure 1-2 is shown in sequence according to the indication of the arrow, these steps are not necessarily executed in the order indicated by the arrow. Unless there is a clear description in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover,

[0087] In one embodiment, a computer device is provided. The computer device can be a terminal, and its internal structure diagram can be as Figure 3 shown. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, it realizes a copyright protection method for a digital hearing aid. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball, or a touchpad provided on the housing of the computer device, or an external keyboard, a touchpad, or a mouse, etc.

[0088] Those skilled in the art can understand that Figure 3 the structure shown in

[0089] In one embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the following steps are implemented:

[0090] Obtain copyright information;

[0091] Encode each Chinese character in the copyright information according to the Chinese national standard GB2312, and then convert the encoding to decimal for expression, to obtain first digital copyright information corresponding to the copyright information;

[0092] Perform a non-linear transformation on the first digital copyright information to obtain second digital copyright information;

[0093] Obtain a pre-stored initial voice signal, and perform a transformation on the initial voice signal according to the second data copyright information to obtain a new voice signal. The initial voice signal and the new voice signal are encrypted voice signals of the copyright information.

[0094] In one embodiment, when the processor executes the computer program, the following steps are further implemented:

[0095] The copyright protection method further includes decrypting the encrypted voice signal to obtain the copyright information, including:

[0096] Obtain the encrypted voice signal;

[0097] Divide the encrypted voice signal into a first encrypted voice signal and a second encrypted voice signal with the same duration;

[0098] Perform Fourier transforms on the first encrypted signal and the second encrypted signal respectively to obtain a first Fourier signal and a second Fourier signal;

[0099] Divide the first Fourier signal and the second Fourier signal into 16 sub-bands respectively, and calculate the amplitude of each sub-band;

[0100] Calculate a transformation coefficient according to the amplitude of the sub-band corresponding to the first Fourier signal and the amplitude of the sub-band corresponding to the second Fourier signal;

[0101] Perform a non-linear inverse transformation on the transformation system to obtain third digital copyright information, and obtain the copyright information according to the third data copyright information.

[0102] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0103] Obtain copyright information;

[0104] Encode each Chinese character in the copyright information according to the Chinese national standard GB2312, and then convert the encoding to decimal for expression to obtain the first digital copyright information corresponding to the copyright information;

[0105] Perform a non-linear transformation on the first digital copyright information to obtain the second digital copyright information;

[0106] Obtain a pre-stored initial voice signal, and transform the initial voice signal according to the second data copyright information to obtain a new voice signal. The initial voice signal and the new voice signal are encrypted voice signals of the copyright information.

[0107] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0108] The copyright protection method further includes decrypting the encrypted voice signal to obtain the copyright information, including:

[0109] Obtain the encrypted voice signal;

[0110] Divide the encrypted voice signal into a first encrypted voice signal and a second encrypted voice signal with the same duration;

[0111] Perform Fourier transforms on the first encrypted signal and the second encrypted signal respectively to obtain a first Fourier signal and a second Fourier signal;

[0112] Divide the first Fourier signal and the second Fourier signal into 16 subbands respectively, and calculate the amplitude of each subband;

[0113] Calculate transformation coefficients according to the amplitudes of the subbands corresponding to the first Fourier signal and the amplitudes of the subbands corresponding to the second Fourier signal;

[0114] Perform a non-linear inverse transformation on the transformation system to obtain the third digital copyright information, and obtain the copyright information according to the third data copyright information.

[0115] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0116] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0117] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A copyright protection method for a digital hearing aid, characterized in that, The copyright protection method is used to encrypt the copyright information of a digital hearing aid, and includes: Obtaining the copyright information; Encoding each Chinese character in the copyright information according to the Chinese national standard GB2312, and then converting the encoding into a decimal representation to obtain the first digital copyright information corresponding to the copyright information; Performing a non-linear transformation on the first digital copyright information to obtain a second digital copyright information, using the following formula: Among them, is the first digital copyright information, is the second digital copyright information, is the adjustment parameter; Obtaining a pre-stored initial speech signal, and transforming the initial speech signal according to the second digital copyright information to obtain a new speech signal. The initial speech signal and the new speech signal are encrypted speech signals of the copyright information. Among them, transforming the initial speech signal according to the second digital copyright information to obtain a new speech signal includes: performing a Fourier transform on the initial speech signal to obtain a first speech signal, dividing the first speech signal into 16 subbands, statistically analyzing the amplitude information of each subband, adjusting the amplitude of each subband according to the second digital copyright information to obtain new subbands, synthesizing the new subbands to obtain a second speech signal, and performing an inverse Fourier transform on the second speech signal to obtain a new speech signal.

2. The copyright protection method according to claim 1, characterized in that, The copyright information includes manufacturer information and software version information. The manufacturer information is expressed in Chinese characters, and the software version information is represented by 6 digits from 0 to 9; The first digital copyright information includes the numbers obtained by encoding each Chinese character in the manufacturer information according to the Chinese national standard GB2312 and then converting the encoding into a decimal representation, and the software version information represented by 6 digits arranged after the manufacturer information.

3. The copyright protection method according to any one of claims 1-2, characterized in that, The copyright protection method further includes decrypting the encrypted speech signal to obtain the copyright information, including: Obtaining the encrypted speech signal; Dividing the encrypted speech signal into two first encrypted speech signals and a second encrypted speech signal with the same duration; Performing a Fourier transform on the first encrypted speech signal and the second encrypted speech signal respectively to obtain a first Fourier signal and a second Fourier signal; Dividing the first Fourier signal and the second Fourier signal into 16 subbands respectively, and calculating the amplitude of each subband; Calculating a transformation coefficient according to the amplitude of the subband corresponding to the first Fourier signal and the amplitude of the subband corresponding to the second Fourier signal; Performing a non-linear inverse transformation on the transformation coefficient to obtain a third digital copyright information, and obtaining the copyright information according to the third digital copyright information.

4. A copyright protection system for a digital hearing aid, characterized in that, Including a digital hearing aid and a copyright verification device that communicate with each other; The digital hearing aid pre-stores an encrypted speech signal obtained by encrypting the copyright information using the copyright protection method described in claim 3, and broadcasts the encrypted speech signal according to the copyright broadcast instruction after obtaining the copyright broadcast instruction; The copyright verification device receives the encrypted speech signal, decrypts the encrypted speech signal using the copyright protection method described in claim 3 to obtain the copyright information, and verifies the digital hearing aid according to the copyright information.

5. The copyright protection system according to claim 4, characterized in that, Trigger the copyright broadcast instruction by holding down the "+" or "-" button for adjusting the volume of the digital hearing aid for 20 seconds.

6. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method described in claim 3.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method described in claim 3.

Images