CN113905303B - Hearing loss warning method, storage medium and audio device - Google Patents

Abstract

The present invention belongs to the field of hearing protection technology, a hearing damage early warning method, a storage medium and an audio device, wherein the hearing damage early warning method comprises the following steps: S1: counting the continuous playing time of the earphone and the volume intensity of the earphone to obtain the critical volume intensity of damage; the critical volume intensity of damage is the default storage parameter when the earphone leaves the factory; S2: judging whether the volume intensity of the earphone is less than the critical volume intensity of damage, if so, returning to step S1, otherwise executing step S3; S3: calculating the critical time of damage according to the volume intensity of the earphone; S4: judging whether the continuous playing time of the earphone is greater than the critical time of damage, if greater, executing step S5, if less, returning to step S1; S5: adjusting the volume intensity of the earphone down to the critical volume intensity of damage, and issuing an alarm prompt. This solves the problem of hearing damage caused by users unconsciously using the earphone for a long time and at a high volume in the prior art.

Description

Hearing loss warning method, storage medium and audio device

Technical Field

The present invention belongs to the technical field of hearing protection, and in particular relates to a hearing damage early warning method, a storage medium and an audio device.

Background technique

With the rapid promotion of true wireless TWS earphones, more and more consumers choose to wear Bluetooth earphones for voice calls and music playback, etc. Many users wear earphones for a long time and have developed a strong dependence on them. Medical research shows that long-term wearing of earphones can cause irreversible damage to human hearing if the playback volume is not well controlled. The current solution for volume control and protecting human hearing is mainly to detect the intensity of the headphone playback volume: when the intensity is too high and exceeds the threshold, an alarm message is generated or the volume is lowered. Although the above solution can play a certain protective role, it still has shortcomings.

First, different volume intensities require different durations to damage human hearing. Turning down the volume of headphones is not necessarily safe. If it lasts long enough, it will still cause hearing damage. Second, the volume of headphones changes dynamically. The hearing damage of headphone users is the result of the superposition of different volume intensities for a period of time. The existing technology does not take this fact into account. In addition, the safe volume intensities for people of different age groups are different, the hearing damage parameters are different, and the time required for hearing recovery after pausing the broadcast is also different. Therefore, a comprehensive and rigorous hearing damage warning method is urgently needed to protect and warn the hearing of people who often wear headphones.

Summary of the invention

The present invention aims to provide a hearing damage warning method, a storage medium and an audio device, which solves the problem in the prior art that users unconsciously use headphones for a long time and at a high volume, causing hearing damage.

The basic solution provided by the present invention: a hearing loss early warning method, comprising the following steps:

S1: Acquire earphone usage data and hearing damage parameters, wherein the earphone usage data includes earphone volume intensity and continuous usage time of the corresponding earphone volume intensity; the hearing damage parameters include damage critical volume intensity, damage critical time and hearing damage power function index; the hearing damage parameters are stored by default when the earphone leaves the factory;

S2: Calculate the hearing loss value of the time period based on the headphone usage data and the hearing loss parameters;

S3: Accumulate the hearing loss values in each time period to obtain a hearing loss index;

S4: Obtaining a warning threshold of the headset, where the warning threshold is stored by default when the headset leaves the factory;

S5: Determine whether the hearing loss index is greater than the warning threshold. If so, adjust the headphone volume to the critical volume level and issue an alarm.

The principles and advantages of the present invention are as follows: when wearing headphones, human hearing damage can be judged by a hearing damage index, which is obtained by integrating a hearing damage value, and the hearing damage value is calculated based on the headphone volume intensity, the continuous use time of the headphone volume intensity, and a hearing damage parameter; when the hearing damage index is greater than a warning threshold, it is judged that the user's hearing is damaged, and the user is prompted to stop using the headphones, and the headphone volume intensity is adjusted to below the damage critical volume intensity. Beneficial effects of the present solution: The present solution introduces the concepts of hearing loss value and hearing loss index, and accurately determines whether the user's hearing is damaged by comparing the hearing loss index with the warning threshold; in the prior art, a text prompt is usually used to remind the user that the headphone volume intensity exceeds the threshold, which may cause hearing damage, or to determine whether the user's hearing is damaged by the length of time the headphone is played at a certain volume intensity; compared with the prior art, the present solution determines hearing damage in a more scientific and accurate manner, and has flexibility and pertinence; the present solution determines hearing damage through a professional calculation method, and well handles the process of hearing damage caused by the superposition of different volume intensities for a period of time, and adopts a method of forcibly reducing the headphone volume intensity to prevent users from using too high a headphone volume intensity and unconsciously using it for too long, thereby ensuring that the user's hearing is not damaged and improving the safety of headphone use.

Furthermore, the step S2 further comprises the following steps:

S2-1: Determine whether the volume level of the earphone is greater than the damage threshold volume level. If so, execute step S2-2; otherwise, execute step S1;

S2-2: Calculate the hearing loss value for the time period based on the headphone usage data and the hearing loss parameters.

Beneficial effect: According to research, when the headphone volume intensity is less than the critical volume intensity for damage, no matter how long the user continues to use the headphone, it will not cause hearing damage. Compared with the basic solution, the headphone volume intensity is first compared with the critical volume intensity for damage, so that the judgment accuracy of hearing damage in step S5 is higher. While ensuring the hearing safety of the user, the user can use the volume intensity that he is comfortable with when using the headphone, which improves the user's headphone usage preference.

Furthermore, the step S1 further comprises the following steps:

S1-1: Acquire earphone usage data and user age, wherein the earphone usage data includes earphone volume intensity and continuous usage time corresponding to the earphone volume intensity;

S1-2: Obtain corresponding hearing loss parameters according to the user's age, wherein the hearing loss parameters include critical volume intensity for damage, critical time for damage, and power function index for hearing loss. A table of hearing loss parameters for each age group is stored in the earphones when they leave the factory.

Beneficial effect: Since different age groups have different hearing loss parameters, if the user's hearing has been damaged, but the actual hearing loss index has not reached the warning threshold, or the headphone volume intensity has not reached the damage critical volume intensity, the forced volume reduction step is not initiated, and the user is not forced to reduce the volume and the warning prompt is not taken, causing the user's hearing to be damaged. Therefore, this solution obtains the user's age and obtains the accurate damage critical time and damage critical volume intensity according to the age, which improves the flexibility of this solution and ensures the user's hearing safety and health.

Further, the step S5 comprises the following steps:

S5-1: Determine whether the hearing loss index is greater than the warning threshold. If so, adjust the headphone volume to the critical volume level;

S5-2: Obtaining a planned hearing recovery time, where the planned hearing recovery time is the time when the user needs to stop using the headphones, or/and the time when the headphone volume intensity during use is lower than the critical damage volume intensity;

S5-3: issuing an alarm, wherein the alarm includes information on the planned recovery time of hearing loss.

Beneficial effect: To ensure hearing safety, when a user's hearing is damaged, the user is required to stop using the headphones for a period of time or keep the headphone volume level below the critical damage volume level during use. This period of time is the hearing plan recovery time, which is stored by default when the headphones leave the factory. This solution uses the hearing damage index to derive the hearing plan recovery time, and conveys the hearing plan recovery time to the user, reminding the user to use the headphones reasonably and correctly to ensure the user's hearing safety.

Further, steps S6 and S7 are included;

S6: When the volume level of the earphone is lowered to the critical volume level for damage, start timing to obtain the actual hearing recovery time, and execute step S7;

S7: When it is detected that the user adjusts the headphone volume intensity to above the damage critical volume intensity, determine whether the user's actual recovery time is greater than the planned hearing recovery time. If so, clear the hearing damage index and execute step S1; otherwise, continue to issue an alarm prompt to the user.

Beneficial effect: By timing, it is possible to accurately determine whether the user's hearing has been restored. If it is determined that the user's actual recovery time is less than the planned hearing recovery time, an alarm will continue to be issued to the user to let the user know that hearing recovery needs to continue, thereby increasing the user's awareness of hearing protection and ensuring the user's hearing safety.

Furthermore, the warning prompt is a voice prompt, and the voice prompt includes prompting the user to suspend the use of the headphones and the remaining recovery time, and the remaining recovery time is the difference between the planned hearing recovery time and the actual recovery time.

Beneficial effects: The use of voice prompts allows users to clearly and conveniently learn about alarm prompts, ensuring that the user's hearing is not damaged. The voice prompts also include the remaining recovery time, which improves the user's hearing protection awareness and ensures the user's hearing safety.

Furthermore, the method also includes step S8: counting the distribution range of the user's headphone volume intensity and the usage frequency of each headphone volume intensity, judging the user's hearing damage trend based on the statistical results, and adjusting the user's hearing damage parameters based on the hearing damage trend.

Beneficial effect: The hearing loss parameters are adjusted according to the hearing loss trend. Compared with the basic solution, this solution is more humane and intelligent, providing users with a better user experience. For users whose hearing loss continues to worsen, the user's hearing loss parameters are adjusted down to more accurately ensure the user's hearing safety.

The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned hearing loss early warning methods are implemented.

The present invention also provides an audio device, comprising a memory and a processor; the memory is used to store a computer program; the processor is used to implement the steps of any of the above-mentioned hearing loss early warning methods when executing the computer program.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the damage curve.

FIG. 2 is a schematic diagram of an embodiment of a method for early warning of hearing loss according to the present invention.

Detailed ways

The following is further described in detail through specific implementation methods:

The present invention provides a hearing loss early warning method, a storage medium and an audio device. First, the concept of hearing loss index is introduced. First, according to the theory of hearing loss formation, the concept of hearing loss index is explained:

A large number of scientific studies and experiments have shown that human hearing loss can be described by volume intensity and duration, as shown in Figure 1, expressed as S = H (T). This function represents the relationship between the volume intensity S that causes hearing loss and the duration T in minutes. That is to say, hearing loss will occur when the volume intensity S lasts for T minutes. _Se in Figure 1 is called the critical volume intensity for hearing loss. When the volume is less than this threshold, hearing loss will not occur. Otherwise, hearing loss may occur. _Te is the duration required for the volume intensity _Se to cause hearing loss. ( _Se , _Te ) divides the curve in the figure above into two sections. The slash on the left (i.e., T< _Te ) is the case where the volume is greater than _Se , which can be represented by a negative power function. The greater the volume intensity S, the shorter the duration T required to cause hearing loss. The expression for this section of the curve is:

Formula 1:

In the above formula, q is the exponent of the power function and C is a constant.

The right section (ie, T>= _Te ) is an approximately horizontal straight line, indicating that when the volume is less than _Se , hearing damage will not occur. ( _Te , _Se ) is the intersection of the two curves, and the following relationship can be obtained from formula 1:

Formula 2:

Since the volume intensity of headphones will change dynamically during use, we count the volume intensity exceeding _Se within a period of time, for example, S ₁ lasts for t ₁ minutes, S ₂ lasts for t ₂ minutes, and S _m lasts for t _m minutes. The hearing damage caused by S ₁ lasts for T ₁ minutes, S ₂ lasts for T ₂ minutes, and S _m lasts for T _m minutes. The conditions for no hearing damage are defined as:

Formula 3:

From formulas 1 and 2, _Ti can be expressed as:

Formula 4:

From this we get:

Formula 5:

The left side of the expression is defined as the hearing loss index Q, which is defined as follows:

Collect a volume intensity set S = {S _i , i = 0, 1, ..., m} for a period of time, and let the duration of S _i be t _i . Assume that the duration of human hearing recovery is T ₀ , if a certain S _k ＜S _e , and the duration t _i ＞T ₀ , it means that the hearing is restored, then {S _i , i = 0, 1, ..., k} is discarded, and re-counted from S _k+1 , and the S set becomes {S _i , i = k, ..., m}. After the above processing, the hearing loss index Q corresponding to the volume intensity set S is expressed as:

Formula 6:

Where m is the length of the set S, _Se is the critical intensity of damage, _Te is the critical time of hearing damage, and q is the power function exponent of hearing damage. These three constants are uniquely determined by the hearing damage curve. _ai is obtained by the following relationship: when S _i < S _e , _ai = 0, otherwise _ai = S _i .

When Q is greater than or equal to 1, hearing loss occurs. To ensure safety, a number less than 1 is usually set as the warning threshold, and the warning threshold is Q _th . After Q>Q _th , the user needs to stop using the headset for a period of time, set to T _0. When the headset is suspended for more than T ₀ , Q is cleared and the cumulative calculation starts again, otherwise the alarm continues.

The above-mentioned critical volume intensity _Se , critical time _Te , planned hearing recovery time _T0 and power function index q are collectively referred to as hearing damage parameters. The earphones are factory-set with default hearing damage parameters and a table of hearing damage parameters for each age group. The table can be used to query hearing damage parameters corresponding to different ages. Users can set their own age through the mobile phone connected to the earphones.

This embodiment discloses a hearing loss early warning method based on the above research, as shown in FIG2, including the following steps:

S1-1: Acquire earphone usage data and user age, wherein the earphone usage data includes earphone volume intensity S _i and continuous usage time T _i corresponding to the earphone volume intensity;

S1-2: Obtain corresponding hearing loss parameters according to the user's age, wherein the hearing loss parameters include the critical volume intensity _Se , the critical time _Te and the hearing loss power function index q. The earphones store a table of hearing loss parameters for each age group when they leave the factory.

S2-1: Determine whether the headphone volume intensity _Si is greater than the damage critical volume intensity _Se . If so, execute step S2-2; otherwise, execute step S1;

S2-2: Calculate the hearing loss value for the time period based on the headphone usage data and hearing loss parameters;

S3: Accumulate the hearing loss values in each time period to obtain the hearing loss index Q;

S4: Obtaining a headset warning threshold Q _th , where the warning threshold Q _th is stored by default when the headset leaves the factory;

S5-1: Determine whether the hearing loss index Q is greater than the warning threshold Q _th . If so, adjust the headphone volume level S _i to the damage critical volume level S _e ;

S5-2: Obtaining a planned hearing recovery time T ₀ , where the planned hearing recovery time T ₀ is the time when the user needs to stop using the earphones, or/and the time when the earphone volume intensity S _i during use is lower than the critical damage volume intensity S _e ;

S5-3: issuing an alarm prompt, wherein the alarm prompt includes information on the hearing plan recovery time;

S6: When the headphone volume intensity _Si is lowered to the damage critical volume intensity _Se , start timing, obtain the actual hearing recovery time, and execute step S7;

S7: When it is detected that the user adjusts the headphone volume intensity _Si to _above the damage critical volume intensity Se, determine whether the user's actual recovery time is greater than the hearing planned recovery time _T0 . If so, reset the hearing damage index Q and execute step S1. Otherwise, continue to issue an alarm prompt to the user. The alarm prompt is a voice prompt, which includes prompting the user to suspend the use of the headphones and the remaining recovery time. The remaining recovery time is the difference between the hearing planned recovery time _T0 and the actual recovery time.

S8: Count the distribution range of the user's headphone volume intensity _Si and the usage frequency of each headphone volume intensity _Si , determine the user's hearing loss trend based on the statistical results, and adjust the user's hearing loss parameters based on the hearing loss trend.

This embodiment calculates the daily average value of the headphone hearing loss index Q and tracks the change trend of this value within one month. It determines whether the user's hearing loss has worsened through a low-pass filtering algorithm and a brightening ratio calculation. If so, an alarm is sent to the user and the user is prompted to undergo a hearing check. The user's hearing loss parameters and hearing loss trend data are reported to the server via the mobile phone. The server performs big data statistical analysis on the hearing loss parameters and hearing loss trends, optimizes the hearing loss parameter settings, and provides a basis for improving hearing protection methods for headphone designers.

The specific method of judging whether the hearing loss is worsening by the trend of the daily average of the headphone hearing loss is as follows:

The built-in processing program of the headset records the changes in the hearing loss index Q during the working time of the headset in a day and obtains the average value of the day:

Formula 7:

In the above formula, m is the number of damage indices collected in a day, and _Qi is the damage index in a certain time period _Ti . The built-in processing program of the headset will record the data of _Qavg within a month and obtain the sequence { _Qavg (i), i = 0, 1, ..., M-1}, with a total length of M. The sequence is firstly filtered by a low-pass filter algorithm to remove transient fluctuations in the data and obtain a stable data sequence.

Formula 8:

Where LPF(j) is a low-pass filter function with an order of 2k. Next, the incremental sequence is obtained from the sequence {D(i), i=0, 1, ..., M-2k}

Formula 9: Δd(i)=D(i+1)-D(i)……(i=0, 1, …, M-2k-2)

Suppose the number of Δd(i) greater than 0 is N, and its proportion in the entire sequence is K=N/(M-2k-1). If K> _Kth ( _Kth is the damage trend threshold), it indicates that the hearing damage has a worsening trend, and an alarm is issued in time to prompt the user to have a hearing check.

The specific method of dynamic optimization of the hearing loss index Q is as follows:

During the use of the headphones, the distribution range of the user's headphone volume intensity _Si and the frequency of use of each intensity will be counted. When it is found that the user's hearing loss has a worsening trend, the _Se parameter will be lowered to (1-α)*S _e , and T ₀ will be extended to (1+β)*T _0. If it is found that the user's hearing loss has no worsening trend, _Se will be raised to (1+α)*S _e , and T ₀ will be reduced to (1-β)*T ₀ , where α and β are adjustment coefficients. In addition, the maximum adjustment range of _Se and T ₀ is set to limit _Se and T ₀ from being adjusted too large.

This embodiment also discloses a hearing loss early warning system, which uses the above-mentioned hearing loss early warning method during operation.

This embodiment further discloses a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned hearing loss early warning method are implemented.

This embodiment also discloses an audio device, including a memory and a processor; the memory is used to store a computer program; the processor is used to implement the steps of the above-mentioned hearing loss early warning method when executing the computer program.

The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the invention belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims (9)

1. The hearing impairment early warning method is characterized in that: the method comprises the following steps:

s1: obtaining earphone use data and hearing impairment parameters, wherein the earphone use data comprises earphone volume intensity and continuous use time corresponding to the earphone volume intensity; the hearing impairment parameters include impairment critical volume intensity S _e Critical time of injury T _e And a hearing impairment power function exponent q; the hearing impairment parameters are stored by default when the earphone leaves the factory;

s2: calculating a hearing impairment value of a time period lasting for the use time according to the earphone use data and the hearing impairment parameters;

s3: accumulating the hearing impairment values of each time period to obtain a hearing impairment index Q, comprising:

collect a set of volume intensities s= { S for a period of time _i I=0, 1, … …, m }, let S be _i Duration t _i The method comprises the steps of carrying out a first treatment on the surface of the Assume that the rest and recovery time of the hearing of the human ear is T ₀ If a certain S _k ＜S _e And duration t _i ＞T ₀ Indicating that hearing is restored { S } _i I=0, 1, … …, k } discarded from S _k+1 Starting to re-count, S set becomes { S ] _i I=k, … …, m }; after the above processing, the hearing loss index Q corresponding to the volume intensity set S is expressed as:

where m is the length of the set S, q is the exponent of the power function, a _i Obtained from the following relation: when S is _i ＜S _e ，a _i =0, otherwise a _i ＝S _i ；

S4: acquiring an earphone warning threshold, wherein the warning threshold is stored by default when the earphone leaves a factory;

s5: judging whether the hearing impairment index is larger than the warning threshold, if so, reducing the earphone volume intensity to the impairment critical volume intensity and sending out an alarm prompt.

2. The hearing impairment warning method of claim 1, wherein: the step S2 further comprises the following steps:

s2-1: judging whether the earphone volume intensity is larger than the damage critical volume intensity, if so, executing the step S2-2, otherwise, executing the step S1;

s2-2: and calculating the hearing impairment value of the time period according to the earphone use data and the hearing impairment parameters.

3. The hearing impairment warning method of claim 2, wherein: the step S1 further includes the steps of:

s1-1: obtaining earphone use data and user age, wherein the earphone use data comprises earphone volume intensity and continuous use time corresponding to the earphone volume intensity;

s1-2: obtaining corresponding hearing impairment parameters according to the age of a user, wherein the hearing impairment parameters comprise impairment critical volume intensity, impairment critical time and hearing impairment power function indexes; the earphone stores hearing impairment parameter tables of all ages when leaving factory.

4. The hearing impairment warning method of claim 3, wherein: the step S5 includes the steps of:

s5-1: judging whether the hearing impairment index is larger than the warning threshold, if so, reducing the earphone volume intensity to the impairment critical volume intensity;

s5-2: obtaining hearing plan recovery time, wherein the hearing plan recovery time is time when a user needs to pause using the earphone, or/and time when the earphone volume intensity is lower than critical damage volume intensity during use;

s5-3: and sending out an alarm prompt, wherein the alarm prompt comprises hearing plan recovery time information.

5. The hearing impairment warning method of claim 4, wherein: further comprising steps S6 and S7;

s6: when the volume intensity of the earphone is reduced to the critical volume intensity of the damage, starting timing to obtain the actual recovery time of the hearing, and executing the step S7;

s7: when the fact that the earphone volume intensity is adjusted to be higher than the damage critical volume intensity by the user is detected, judging whether the actual recovery time of the user is longer than the hearing plan recovery time, if so, resetting the hearing damage index and executing the step S1, otherwise, continuously sending an alarm prompt to the user.

6. The hearing impairment warning method of claim 5, wherein: the alarm prompt is a voice prompt, and the voice prompt comprises prompting a user to pause using the earphone and remaining recovery time, wherein the remaining recovery time is the difference between the planned recovery time and the actual recovery time of the hearing.

7. The hearing impairment warning method of claim 6, wherein: further comprising step S8: and counting the distribution range of the earphone volume intensity of the user and the use frequency of the earphone volume intensity of each earphone, judging the hearing impairment trend of the user according to the counting result, and adjusting the hearing impairment parameters of the user according to the hearing impairment trend.

8. A computer-readable storage medium, characterized by: a computer program is stored which, when executed by a processor, implements the steps of the hearing impairment warning method according to any one of claims 1-7.

9. An audio device, characterized by: comprising a memory and a processor; the memory is used for storing a computer program; the processor is configured to implement the steps of the hearing impairment pre-warning method according to any one of claims 1-7 when executing the computer program.