CN114928803A

CN114928803A - Hearing-aid type sound control method and system

Info

Publication number: CN114928803A
Application number: CN202210496055.0A
Authority: CN
Inventors: 林秋元; 阳映辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-08
Filing date: 2022-05-08
Publication date: 2022-08-19

Abstract

The invention discloses a hearing-aid type sound control method and a system, which relate to the technical field of acoustic equipment and comprise the following steps: obtaining a hearing compensation curve of a person with weak hearing in advance; receiving and obtaining an original audio signal; performing power compensation on the corresponding frequency band of the original audio signal by using the hearing compensation curve to obtain a hearing aid audio signal; outputting the hearing aid audio signal and/or driving operation of a sound using the hearing aid audio signal. The invention mainly solves the problem of how to control the hearing aid of the external expansion type sound equipment; the hearing-aid type sound control method can use the hearing compensation curve of the hearing-aid person to perform power compensation on the corresponding frequency band of the original audio signal to obtain the hearing-aid audio signal, and performs volume adjustment under the corresponding sound frequency band in a targeted manner, so that the hearing-aid person can listen clearly, hearing can not be reduced continuously due to adjustment of excessive volume, and disturbance to other people is avoided to a certain extent.

Description

Hearing-aid type sound control method and system

Technical Field

The invention relates to the technical field of acoustic equipment, in particular to a hearing-aid type sound control method and system.

Background

Devices with an external sound system, such as a sound system, a television, a personal computer, a home theater, a game console, etc., have been gradually popularized in common homes, and the devices are developed based on the needs of the consumer, and for the elderly at the back of the ear, the people with weak hearing such as the people with slight hearing impairment, the directions of the products are not set according to the needs of the people, so that the people with weak hearing often need to adjust the volume of the devices to a higher gear position to clearly hear the sound because the details of the sound cannot be heard when the people with weak hearing impairment use the devices, the light people cause discomfort to other people and left and right neighbors, and the heavy people can cause general hearing impairment because the heavy people are in an environment with too large volume for a long time.

The frequency range of the sound which can be heard by human beings is 20Hz-20000Hz, for the weak listening person, especially the old, because of the function degradation, the sound in the middle and high frequency range is often not clear, but not all the sound frequency ranges are damaged, even the hearing of the weak listening person is not different from that of the normal person in some sound frequency ranges, therefore, the hearing effect can be improved by adjusting each sound frequency range according to the hearing curve and then outputting the sound.

The electronic hearing aid is a hearing aid device commonly used by the hearing-impaired people, and after personalized debugging, the electronic hearing aid can provide power compensation under a specific sound frequency band for the hearing-impaired people, namely, the damaged sound frequency band nodes of the hearing-impaired people are compensated, other undamaged sound frequency band nodes are not compensated, and discomfort or even permanent damage to the hearing-impaired people caused by over-amplification of all sound frequency bands is avoided.

However, wearing an electronic hearing aid is not a small problem in terms of actual use, operation and maintenance for the elderly and partially hearing-impaired persons, and is also likely to cause an economic burden, and therefore how to perform hearing aid control for an extended-type audio becomes a problem to be solved.

Disclosure of Invention

It is an object of the present invention to provide a hearing-aid type sound control method capable of performing volume adjustment in some sound bands in a targeted manner for devices having an extended type sound, such as a sound, a television, a personal computer, a home theater, and a game console, based on inputted hearing curve data.

Another object of the present invention is to provide a hearing-aid type audio system capable of performing volume adjustment in some audio bands in a targeted manner for devices having a speaker, such as a television, a personal computer, a home theater, and a game console, based on input hearing curve data.

In order to achieve the purpose, the invention provides the following technical scheme: a hearing aid type sound control method comprising the steps of:

s1, obtaining a hearing compensation curve of the weak hearing person in advance;

s2, receiving and obtaining an original audio signal;

s3, performing power compensation on the corresponding frequency band of the original audio signal by using the hearing compensation curve to obtain a hearing-aid audio signal;

s4, outputting the hearing aid audio signal and/or driving the operation of the sound equipment by using the hearing aid audio signal.

In the foregoing technical solution, the step S1 specifically includes:

s1.1, selecting a plurality of sound frequency nodes, and carrying out hearing test on a person with weak hearing to obtain a naked ear hearing threshold curve of the person with weak hearing;

s1.2, performing power compensation on the damaged sound frequency node of the weak hearing person according to the hearing threshold curve of the naked ear until the hearing curve of the weak hearing person falls into the range of a normal hearing curve;

s1.3, recording the power compensation amount at each audio frequency node in step S1.2, and forming a hearing compensation curve.

In the above technical solution, in the step S1.1, the selected sound frequency node includes at least one of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz, and 8000 Hz.

In the above technical solution, the step S2 specifically includes:

s2.1, judging the type of the received signal;

s2.2, if the received signal is a pure digital audio signal, converting the pure digital audio signal into an analog audio signal, taking the analog audio signal as an original audio signal, and entering the step S3;

s2.3, if the received signal is a digital acoustic image signal, separating a digital audio signal from the digital acoustic image signal, converting the digital audio signal into an analog audio signal, taking the analog audio signal as an original audio signal, and entering the step S3;

s2.4, if the received signal is an analog audio signal, taking the analog audio signal as an original audio signal, and proceeding to step S3.

In the above technical solution, the step S3 specifically includes: superimposing the hearing compensation curve on the original audio signal.

A hearing assistance type sound system comprising:

the hearing-aid compensation module is used for acquiring a hearing-aid compensation curve of a person with weak hearing in advance;

the signal receiving module is used for receiving and obtaining an original audio signal;

the compensation processing module is used for performing power compensation on the corresponding frequency band of the original audio signal by using the hearing compensation curve to obtain a hearing aid audio signal; and the number of the first and second groups,

and the output driving module is used for outputting the hearing aid audio signal and/or driving the operation of a sound box by using the hearing aid audio signal.

In the above technical solution, the hearing aid compensation module includes:

the hearing test submodule is used for selecting a plurality of sound frequency nodes and testing the hearing of the weak hearing people;

the naked ear hearing threshold curve generation submodule is used for generating a naked ear hearing threshold curve according to the test result of the hearing test submodule;

the power compensation submodule is used for performing power compensation on the damaged sound frequency nodes of the weak hearing person according to the hearing threshold curve of the naked ear until the hearing curve of the weak hearing person falls into the range of a normal hearing curve, and recording power compensation quantity under each sound frequency node to form a hearing compensation curve;

and the compensation output sub-module is used for outputting the hearing compensation curve.

In the above technical solution, in the hearing test sub-module, the selected sound frequency node includes at least one of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz, and 8000 Hz.

In the above technical solution, the signal receiving module includes:

the signal judging submodule is used for judging the type of the received signal;

the digital audio signal separation submodule is used for separating out the digital audio signal in the digital audio-video signal;

the digital-to-analog conversion sub-module is used for converting the digital audio signal into an analog audio signal to serve as an original audio signal;

and the output sub-module is used for outputting the original audio signal to the compensation processing module.

In the above technical solution, the compensation processing module is specifically configured to superimpose the hearing compensation curve on the original audio signal.

Compared with the prior art, the invention has the beneficial effects that:

1. the hearing-aid type sound control method can use the hearing compensation curve of the weak hearing person to perform power compensation on the corresponding frequency band of the original audio signal to obtain the hearing-aid audio signal, and performs volume adjustment on the equipment with the external expansion type sound such as the sound, a television, a personal computer, a home theater, a game host and the like under the corresponding sound frequency band in a targeted manner, so that the weak hearing person can listen clearly, the hearing can not be reduced continuously due to the adjustment of too large volume, and the disturbance to other people is avoided to a certain extent.

2. The hearing-aid type sound system can use the hearing compensation curve of the weak hearing person to perform power compensation on the corresponding frequency band of the original audio signal to obtain the hearing-aid audio signal, and performs volume adjustment on the equipment with the external expansion type sound equipment such as the sound equipment, a television, a personal computer, a home theater, a game host and the like under the corresponding sound frequency band in a targeted manner, so that the weak hearing person can listen clearly, the hearing can not be continuously reduced due to the adjustment of the excessive volume, and the disturbance to other people is avoided to a certain extent.

Drawings

Fig. 1 is a flowchart of a first embodiment of the present invention.

Fig. 2 is a flowchart of step S1 in the first embodiment of the present invention.

Fig. 3 is a flowchart of step S3 in the first embodiment of the present invention.

Fig. 4 is a system diagram of a second embodiment of the invention.

Fig. 5 is a graphical representation of a bare ear threshold curve, a normal hearing curve, a power offset, a pre-offset volume curve, and a post-offset volume curve in an application example of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

the present embodiment provides a hearing-aid type sound control method that can be applied to devices having an extended sound, such as a sound, a television, a personal computer, a home theater, and a game console.

Referring to fig. 1, the hearing-aid type sound control method includes the steps of:

s2, receiving and obtaining an original audio signal;

Referring to fig. 2, specifically, step S1 specifically includes:

s1.1, selecting a plurality of sound frequency nodes, and carrying out hearing test on the weak hearing person to obtain a naked ear hearing threshold curve of the weak hearing person.

In this step, the selected sound frequency node includes at least one of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz, and 8000 Hz.

Actually, using a sound playing device such as an auditory tester to play the sound with each sound frequency such as 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz, 8000Hz, etc., respectively, and at each sound frequency, adjusting the sound volume from low to high respectively until the weak listener can clearly hear the sound, recording the sound volume (dB) when the weak listener can clearly hear the sound at each sound frequency, and taking the sound frequency as the X axis and the sound volume (dB) when the weak listener can clearly hear the sound as the Y axis, so as to obtain the bare ear hearing threshold curve.

S1.2, according to the hearing threshold curve of the naked ear, performing power compensation on the damaged sound frequency node of the weak hearing person until the hearing curve of the weak hearing person falls into the range of a normal hearing curve.

Specifically, at each sound frequency, the power compensation amount (dB) at each sound frequency can be obtained by subtracting the volume (dB) at which the normal person can clearly hear the sound from the volume (dB) at which the weak person can clearly hear the sound.

S1.3, in the recording step S1.2, the power compensation amount at each audio frequency node is recorded to form a hearing compensation curve.

Specifically, the hearing compensation curve is obtained by setting the sound frequency as the X axis and the power compensation amount (dB) as the Y axis.

Referring to fig. 3, specifically, the step S2 specifically includes:

s2.1, judging the type of the received signal;

s2.3, if the received signal is a digital audio image signal, separating a digital audio signal from the digital audio image signal, converting the digital audio signal into an analog audio signal, taking the analog audio signal as an original audio signal, and entering step S3;

s2.4, if the received signal is an analog audio signal, taking the analog audio signal as an original audio signal, and entering the step S3.

In fact, the type of the received signal can be determined only by distinguishing the signal source, for example, the signal received from the wired or wireless local area network, the bluetooth network, the HDMI interface is a pure digital audio signal; if the digital audio-video signal is received from the HDMI interface, separating audio channels therein to obtain a digital audio signal; signals received from analog audio signal input interfaces such as a 3.5mm audio interface, an RCA joint and the like are analog audio signals, and digital audio signals can be converted into the analog audio signals by using a DSP chip or a power amplifier module with a D/A conversion function.

Specifically, the step S3 specifically includes: superimposing the hearing compensation curve on the original audio signal; that is, the power compensation can be achieved by superimposing the power compensation amount (dB) on the original audio signal (dB).

In step S4, the hearing aid audio signal is output through the analog audio channel, or the hearing aid audio signal is used to drive the operation of the power amplifier module and the operation of the speaker.

The hearing-aid type sound control method can use the hearing compensation curve of the weak hearing person to perform power compensation on the corresponding frequency band of the original audio signal to obtain the hearing-aid audio signal, and performs volume adjustment on the equipment with the external expansion type sound such as the sound, a television, a personal computer, a home theater, a game host and the like under the corresponding sound frequency band in a targeted manner, so that the weak hearing person can listen clearly, the hearing can not be reduced continuously due to the adjustment of too large volume, and the disturbance to other people is avoided to a certain extent.

The second embodiment:

the present embodiment provides a hearing-aid type sound control system that can be applied to devices having a speaker-type sound system, such as a sound system, a television, a personal computer, a home theater, and a game console.

Referring to fig. 4, the hearing-aid type sound system includes:

Specifically, the hearing aid compensation module comprises:

In the hearing test sub-module, the selected sound frequency nodes comprise at least one of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz and 8000 Hz.

Actually, using a sound device such as an auditory sense tester to play the sounds with respective sound frequencies such as 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz, and 8000Hz, respectively, and adjusting the sound volume from low to high respectively at each sound frequency until the weak hearing person can hear the sound clearly, and recording the sound volume (dB) when the weak hearing person can hear the sound clearly at each sound frequency, wherein the sound frequency is used as the X axis, and the sound volume (dB) when the weak hearing person can hear the sound clearly is used as the Y axis, so as to obtain the bare ear hearing threshold curve.

At each sound frequency, subtracting the volume (dB) when the normal person can clearly hear the sound from the volume (dB) when the weak person can clearly hear the sound, so as to obtain the power compensation amount (dB) at each sound frequency; the hearing compensation curve can be obtained by taking the sound frequency as an X axis and taking the power compensation amount (dB) as a Y axis.

Specifically, the signal receiving module includes:

the digital audio signal separation submodule is used for separating the digital audio signal from the digital audio-video signal;

the digital-to-analog conversion submodule is used for converting the digital audio signal into an analog audio signal to serve as an original audio signal;

In particular, the compensation processing module is specifically configured to superimpose the hearing compensation curve on the original audio signal; that is, the power compensation can be achieved by superimposing the power compensation amount (dB) on the original audio signal (dB).

And the output driving module is used for outputting the hearing aid audio signal through an analog audio channel, or driving the operation of the power amplification module and driving the operation of the loudspeaker by using the hearing aid audio signal.

The hearing-aid type sound system can use the hearing compensation curve of the weak listening person to perform power compensation on the corresponding frequency band of the original audio signal to obtain the hearing-aid audio signal, and performs volume adjustment on the equipment with the external expansion type sound equipment such as the sound equipment, a television, a personal computer, a home theater, a game console and the like under the corresponding sound frequency band in a targeted manner, so that the weak listening person can listen clearly, the hearing can not be reduced continuously due to the adjustment of too large volume, and the disturbance to other people is avoided to a certain extent.

Referring to fig. 5, the following data of a hearing impaired person is used as an example to specifically describe the technical solution of the present invention:

using an auditory sense tester, the sound volume (dB) of the weak hearing person is measured to be 55dB, 65dB, 70dB, 80dB, 75dB and 75dB respectively at the sound frequency nodes of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz and 8000Hz, so as to obtain the naked ear hearing threshold curve of the weak hearing person.

The upper limit value of the sound volume (dB) of the normal hearing curve is 25dB, and after the upper limit value is taken as a reference, 30dB, 40dB, 45dB, 55dB, 50dB and 50dB of power compensation are respectively made at sound frequency nodes of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz and 8000Hz, so that the hearing of the weak hearing person can reach the level of the normal hearing curve, and the hearing compensation curve can be obtained according to the power compensation amount (dB).

Under normal hearing, the sound is set to be 30dB by default under sound frequency nodes of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz and 8000Hz, and after power compensation is carried out by using the hearing compensation curve, the sound respectively outputs sound volumes of 60dB, 70dB, 75dB, 85dB, 80dB and 80dB under the sound frequency nodes of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz and 8000 Hz.

With this as the volume output, the person with poor hearing can obtain a volume of 30dB at any sound frequency, which corresponds to the normal hearing level.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hearing-aid type sound control method, comprising the steps of:

s2, receiving and obtaining an original audio signal;

s4, outputting the hearing aid audio signal and/or driving the operation of sound equipment by using the hearing aid audio signal.

2. The hearing-aid-type sound control method according to claim 1, wherein said step S1 specifically includes:

s1.1, selecting a plurality of sound frequency nodes, and carrying out hearing test on a hearing-impaired person to obtain a naked ear hearing threshold curve of the hearing-impaired person;

3. A hearing aid type sound control method according to claim 2, characterized in that in step S1.1, the selected sound frequency nodes comprise at least one of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz and 8000 Hz.

4. A hearing aid type sound control method according to claim 1, wherein said step S2 is specifically:

s2.1, judging the type of the received signal;

5. A hearing aid type sound control method according to claim 1, characterized in that: the step S3 specifically includes: superimposing the hearing compensation curve on the original audio signal.

6. A hearing assistance type sound system, comprising:

the compensation processing module is used for performing power compensation on the corresponding frequency band of the original audio signal by using the hearing compensation curve to obtain a hearing-aid audio signal; and the number of the first and second groups,

7. A hearing assistance type sound system according to claim 6, wherein the hearing assistance compensation module comprises:

the hearing test submodule is used for selecting a plurality of sound frequency nodes and carrying out hearing test on the weak hearing person;

8. A hearing assistance type sound system according to claim 7, characterized in that: in the hearing test sub-module, the selected sound frequency nodes comprise at least one of 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz and 8000 Hz.

9. A hearing assistance type sound system according to claim 6, characterized in that: the signal receiving module includes:

10. A hearing assistance type sound system according to claim 6, wherein: the compensation processing module is specifically configured to superimpose the hearing compensation curve on the original audio signal.