WO2011116723A2

WO2011116723A2 - Control method and device for audio output

Info

Publication number: WO2011116723A2
Application number: PCT/CN2011/073542
Authority: WO
Inventors: 王仪盛
Original assignee: 华为终端有限公司
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2011-09-29
Also published as: CN102172044B; CN102172044A; WO2011116723A3

Abstract

A control method and device for the audio output are disclosed in the present invention, which relates to the field of signal processing. The method includes: detecting whether an earphone is in an audio output state; if yes, identifying the current environment of the audio output; adjusting the volume of the audio output according to the identified current environment of the audio output, determining predetermined audio output time, and turning off the audio output after the predetermined audio output time is reached. The control device includes: a state detection module, a control module, an environment identification module, and a volume adjusting module. In the present invention, by adjusting the volume according to the identified current environment of the audio output, determining the predetermined audio output time, and turning off the audio output after the predetermined audio output time is reached, the audio output can be efficiently controlled, thus the problem of the audition damage conduced by receiving audio output in a long time can be solved, and the audition damage caused by high-volume noise can be avoided.

Description

Audio output control method and device

The present invention relates to the field of signal processing, and in particular, to a method and device for controlling audio output. Background technique

With the improvement of people's living standards and the increasing work pressure, listening to music or listening to music has gradually become the main way for people to relax. Therefore, people have more and more demand for audio output, and audio output control equipment. It also becomes very common in everyday life, such as headphones and mobile phones. Young people with headphones can often be seen in the bus, in the subway, in the noisy streets. However, listening to music or broadcasting for a long time with a control device such as a headphone and other audio output may cause the ear to be exposed to high-intensity noise for a long time, and over time, some people's hearing may be degraded, and noise deafness may occur.

In order to alleviate various kinds of hearing damage caused by hearing fatigue and excessive sound, and labor injuries such as tinnitus and dizziness, in the control of the audio output, the prior art gradually reduces the volume by calculating the time and volume of the user listening to music; In the second technology, when the volume is too large, the volume of the control device after the audio output is restarted, and the volume is automatically set to medium, so as to avoid the impact of the ear being excessively loud. The prior art 3 automatically adjusts the volume up and down by 5% every 15 minutes. , thereby reducing the human ear to listen to audio of the same volume and frequency for a long time.

In the process of implementing the present invention, the inventors have found that the prior art has at least the following disadvantages:

With the prior art 1, if the user listens to music at night, unknowingly falls asleep, and does not have a control device that turns off the audio output, the technical solution of the prior art can reduce the volume, but cannot completely solve the hearing damage, etc. The problem is that the control device that restarts the audio output when the user adjusts the volume is too large, which not only affects the user experience, but also cannot solve the problem that the control device that uses the audio output for a long time is damaged by hearing, and does not accurately Quantizing the volume adjustment function is not conducive to accurately controlling the volume; although the prior art has the volume adjustment function, the adjustment effect is not obvious, and the high volume noise is not reduced to the hearing damage, and the hearing loss caused by the long-term use of the earphone is still not solved. A problem. Summary of the invention

In order to effectively control the audio output and solve the problem of hearing damage caused by receiving the audio output for a long time, thereby avoiding the hearing damage caused by the high volume noise, the embodiment of the present invention provides a method and a device for controlling the audio output. Place The technical solutions are as follows:

In one aspect, a method of controlling an audio output is provided, the method comprising:

Detecting whether the headset is in the state of audio output;

If yes, identify the current audio output environment;

The volume of the audio output is adjusted according to the identified current audio output environment, and the preset audio output time is determined, and the audio output is turned off after the preset audio output time is reached.

In another aspect, a control device for audio output is provided, the device comprising: a state detection module, a control module, an environment recognition module, and a volume adjustment module;

The state detecting module is configured to detect whether the earphone is in an audio output state;

The control module is configured to enable the environment recognition module to identify a current audio output environment when the state detecting module detects that the earphone is in an audio output state; and according to the current audio output environment identified by the environment recognition module Controlling the volume adjustment module to adjust the volume of the audio output, and determining a preset audio output time according to the current audio output environment, and turning off the audio output after reaching the preset audio output time;

The environment identification module is configured to identify a current audio output environment under the control of the control module when the state detecting module detects that the earphone is in an audio output state;

The volume adjustment module is configured to adjust a volume of the audio output according to the control of the control module.

The beneficial effects of the technical solutions provided by the embodiments of the present invention are:

By adjusting the volume according to the identified current audio output environment and determining the preset audio output time, and turning off the audio output after reaching the preset audio output time, the audio output can be effectively controlled, thereby solving the long-term reception. Audio output causes hearing damage problems and avoids hearing damage caused by high volume noise. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a flowchart of a method for controlling audio output according to Embodiment 1 of the present invention;

2 is a flowchart of a method for controlling audio output according to Embodiment 2 of the present invention;

3 is a schematic structural diagram of an audio output control apparatus according to Embodiment 3 of the present invention;

4 is a schematic structural diagram of a state detection module according to Embodiment 3 of the present invention;

FIG. 5 is a schematic structural diagram of an environment identification module according to Embodiment 3 of the present invention. detailed description

In order to make the objects, the technical solutions and the advantages of the present invention more apparent, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1

This embodiment provides a method for controlling audio output. Referring to FIG. 1, the method is specifically as follows:

101: detecting whether the earphone is in an audio output state;

102: if the headset is detected to be in an audio output state, identify the current audio output environment;

103: Adjust the volume of the audio output according to the recognized current audio output environment, and determine a preset audio output time, and turn off the audio output after the preset audio output time is reached.

In an embodiment, detecting whether the earphone is in an audio output state, specifically includes:

The human body information is detected on the earphone, and the earphone is judged to be in an audio output state according to the detected human body information, and the human body information includes at least one of a human body temperature, a human body pulse, and a pressure given by the ear.

In an embodiment, the foregoing determining, according to the detected human body information, whether the earphone is in an audio output state, specifically includes:

It is determined whether the detected human body information reaches a corresponding preset threshold, and if so, it is determined that the earphone is in an audio output state.

Identify the current audio output environment, including:

Acquiring the sound signal in the current audio output environment, converting the sound signal into the feature data of the decibel number, and identifying the current audio output environment corresponding to the feature data according to the quantized decibel number and the corresponding audio output environment.

Preferably, adjusting the volume of the audio output according to the identified current audio output environment comprises:

The volume range of the audio output is determined based on the identified current audio output environment, and the volume of the audio output is adjusted within the volume range of the audio output according to the user's input.

The method provided by the embodiment can effectively control the audio output by adjusting the volume according to the identified current audio output environment and determining the preset audio output time, and turning off the audio output after reaching the preset audio output time. , thereby solving the problem of hearing damage caused by receiving audio output for a long time, and avoiding hearing damage caused by high volume noise; in addition, by adjusting the volume of the audio output in the volume range of different audio outputs according to the user's input, not only Accurate control of the volume can further enhance the user experience. Embodiment 2 The embodiment provides a method for controlling audio output, which determines the current audio output environment, controls the volume of the audio output according to the recognized current audio output environment, and turns off after the preset audio output time is reached. Audio output to protect hearing. For convenience of description, the method provided in this embodiment is described in detail by taking the control device of the audio output as an example of the earphone. Referring to FIG. 2, the process of the method provided in this embodiment is specifically as follows:

201: detecting whether the earphone is in an audio output state, if yes, performing step 202, otherwise, the process ends; for the step, in the actual application, the human body information may be detected on the earphone, and whether the earphone is determined according to the detected human body information In a state of audio output, wherein the human body information includes at least one of a body temperature, a human body pulse, and a pressure given by the ear. In specific implementation, the method of detecting human body information on the earphone can be realized by a sensor, for example, detecting a human body temperature on the earphone through a temperature sensor, detecting a human body pulse on the earphone through a pulse sensor, and detecting the ear to the earphone through a pressure sensor. The pressure and the like can also be used in combination to detect the human body information on the earphone. Regarding how to detect whether the earphone is in the use state of the audio output, the embodiment does not perform the detection mode and the detected specific human body information. limited.

In addition, regarding the determination of whether the earphone is in the audio output state according to the detected human body information, the present embodiment is also not specifically limited. It should be noted that the state of the audio output not only refers to the audio output of the earphone, but also the user has worn the earphone. At this time, the headset is considered to be in the state of audio output, that is, in a state of use. In a specific implementation, it may be determined whether the detected human body information reaches a corresponding preset threshold, and if yes, it is determined that the earphone is in an audio output state. The different body information corresponds to different preset thresholds. For example, when the body information is the body temperature, the corresponding preset threshold may be 36 degrees, and when the body information is the body pulse, the corresponding preset threshold may be 70 times. /min, etc., this embodiment does not limit the specific preset threshold corresponding to each body information. In this step, by detecting the human body pulse on the earphone and reaching 70 times/minute as an example, it can be judged that the earphone is in the audio output state at this time.

202: Identify a current audio output environment;

The multiple audio output environments can be divided according to the external environment noise. This embodiment does not limit the specific audio output environment. For the average person, the sound of 0 to 20 decibels is quiet and almost imperceptible; the sound of 20 to 40 decibels is quiet, like a soft voice, 40 to 60 decibels, equivalent to ordinary indoor conversation; and 60 to 70 The sound of the decibel can make people feel noisy and detrimental to the nerve. For this reason, the present embodiment only takes two audio output environments, which are quiet environment and noisy environment according to the external environment noise, as an example. For example, when the ambient noise is less than or equal to 60 decibels, the audio output environment is divided into a quiet environment, and when the external environment noise is greater than 60 decibels, the audio output environment is divided into a noisy environment.

Specifically, when identifying the current audio output environment, specifically:

Acquiring the sound signal in the current audio output environment, converting the sound signal into the feature data of the decibel number, and identifying the current audio output environment corresponding to the feature data according to the quantized decibel number and the corresponding audio output environment. The quantized decibel number can be set when the audio output environment is divided, which is not specifically limited in this embodiment. In this embodiment, the quantized decibel number can be set to 60 decibels, 60 decibels or less is a quiet environment, and more than 60 decibels is a noisy environment. For example, after acquiring the sound signal in the current audio output environment, the feature data obtained by converting the sound signal into the decibel number is 30 decibels, and the current audio corresponding to the 30 decibel feature data can be identified according to the quantized decibel number. The output environment is a quiet environment. Regarding how to obtain the sound signal in the current audio output environment, the embodiment does not specifically limit. In specific implementation, the sound signal in the current audio output environment can be obtained through the sound sensor.

203: Adjust the volume of the audio output according to the identified current audio output environment, and determine a preset audio output time; for this step, for the audio output of the same volume, the sound quality effect is different under different audio output environments. In order to improve the sound quality under the premise of protecting the hearing, this step adopts a method of adjusting the volume of the audio output according to the current audio output environment, for example, in a quiet environment, the volume of the audio output can be set within 60 decibels, In a noisy environment, the volume of the audio output can be adjusted appropriately.

However, according to the sound meter detection, the noise of the noisy environment is usually around 70-80 decibels. If the earphones are used to listen to the audio in this case, the volume needs to be enlarged to more than 30 decibels above the original noisy environment to ensure hearing. The sound is as sharp as the sound in a quiet environment, so the sound at this time has exceeded 100 decibels. If the human ear is exposed to a sound environment of more than 100 decibels for an extended period of time, hearing loss may occur. In this regard, after the method provided by this embodiment identifies the current audio output environment, the method further includes:

The volume range of the audio output is determined based on the identified current audio output environment. For example, in a quiet environment, the volume range of the audio output is determined to be within 60 decibels. In a noisy environment, the volume of the audio output is determined to be within 70 decibels. Then, when adjusting the volume of the audio output according to the identified current audio output environment, it is necessary to ensure that the adjusted volume remains within the volume range corresponding to the current audio output environment. In addition to this, the volume of the audio output can be adjusted within the volume range of the audio output based on the user's input. This embodiment does not limit the specific adjustment mode. For example, the quantization adjustment can be performed in such a manner that the adjustment is positive and negative 5 decibels. By determining the volume range of the audio output according to the identified current audio output environment, and adjusting the volume within the volume range, the volume setting in different environments can be made more user-friendly and intelligent, especially in noisy environments. The limitation of the range can prevent the user from adjusting the sound volume to a large condition in order to pursue the sound quality effect, thereby effectively protecting the human ear from high-intensity sound stimulation and realizing hearing protection.

In addition, the damage of the noise to the hearing is not only related to the volume, but also proportional to the contact time. In this regard, the method provided by the embodiment adjusts the volume of the audio output according to the identified current audio output environment, and also determines The preset audio output time is way to achieve further protection against hearing. In this embodiment, the length of the audio output time determined herein is not limited. According to research, if listening to the earphone, it is better not to listen for more than 20 minutes each time, so that the hearing effect is not great. Otherwise, as time goes by and the sound increases, it will cause invisible damage to the hearing. Therefore, The audio output time can be set to 20 minutes. For audio output in noisy environments, the damage to the hearing will be more serious. Therefore, the audio output time can be set to 10 minutes, and the preset audio output time can be determined according to the identified current audio output environment.

204: Turn off the audio output after the preset audio output time is reached.

For this step, in combination with the description of the above step 203, after determining the preset audio output time according to the identified current audio output environment, in order to protect the hearing, the method provided by the embodiment takes the preset audio output at the timing. The way the audio output is turned off after the time, thereby avoiding the hearing loss caused by the persistent sound stimulating the human ear for a long time. For example, when it is recognized that the current audio output environment is a quiet environment, if the timing reaches 20 minutes, the audio output is turned off; when the current audio output environment is recognized as a noisy environment, if the timing reaches 10 minutes, the audio output is turned off. Wherein, the timing function can be completed by using a timer, but the embodiment does not specifically limit when to start timing, for example, timing can be started when it is detected that the earphone is in the state of audio output.

Optionally, in order to avoid the inconvenience caused by turning off the audio output and the user experience is reduced, after the timing reaches the preset audio output time, the user may be prompted to prompt the user to actively turn off the audio output. The manner of prompting may be to issue an alarm signal at the same time as the audio output, or to perform a voice prompt, which is not specifically limited in this embodiment.

The method provided by the embodiment can effectively control the audio output by adjusting the volume according to the identified current audio output environment and determining the preset audio output time, and turning off the audio output after reaching the preset audio output time. , thereby solving the problem of hearing damage caused by receiving audio output for a long time, and avoiding hearing damage caused by high volume noise; in addition, by adjusting the volume of the audio output in the volume range of different audio outputs according to the user's input, not only Accurate control of the volume can further enhance the user experience. Embodiment 3

Referring to FIG. 3, the embodiment provides a control device for audio output, and the control device is configured to perform the operation steps of the method in the first embodiment and the second embodiment, including: a state detecting module 301, a control module 302, and an environment identifier. Module 303 and volume adjustment module 304;

a state detecting module 301, configured to detect whether the earphone is in an audio output state;

The control module 302 is configured to enable the environment recognition module 303 to recognize the current audio output environment when the state detecting module 301 detects that the earphone is in the audio output state; and control the volume adjustment according to the current audio output environment recognized by the environment recognition module 303. The module 304 adjusts the volume of the audio output, and determines a preset audio output time according to the current audio output environment, and turns off the audio output after the preset audio output time is reached;

The environment identification module 303 is configured to control when the state detecting module 301 detects that the earphone is in the audio output state. Identifying the current audio output environment under the control of the module 302;

The volume adjustment module 304 is configured to adjust the volume of the audio output according to the control of the control module 302.

Referring to FIG. 4, in an embodiment, the state detecting module 301 specifically includes:

The detecting unit 301a is configured to detect human body information on the earphone;

The determining unit 301b is configured to determine, according to the human body information detected by the detecting unit 301a, whether the earphone is in an audio output state, and the human body information includes at least one of a human body temperature, a human body pulse, and a pressure given by the ear.

The detecting unit 301a includes at least one of a temperature sensor, a pulse sensor, and a pressure sensor. The determining unit 301b is specifically configured to determine whether the human body information detected by the detecting unit 301a reaches a corresponding preset threshold, and if yes, determine that the earphone is in an audio output state.

In another embodiment, the state detection module 301 is specifically a headphone in-position detection circuit, i.e., a circuit that detects whether the earphone is plugged into the jack. There are many mature circuits of this kind in many existing electronic products, and will not be described here.

Referring to FIG. 5, the environment identification module 303 specifically includes:

An obtaining unit 303a, configured to acquire a sound signal in a current audio output environment;

The converting unit 303b is configured to convert the sound signal acquired by the obtaining unit 303a into the feature data of the decibel number; the identifying unit 303c is configured to correspond to the feature data obtained by the converting unit 302b according to the quantized decibel number and the corresponding audio output environment identifying unit 302b Current audio output environment.

The acquisition unit 303a may specifically be an acoustic sensor, but is not limited thereto. For example, the ambient noise is picked up by a microphone or the like, and the environmental noise is converted into a voltage signal or a current signal.

Further, the control module 302 is configured to determine, according to the current audio output environment recognized by the environment recognition module 303, when the volume adjustment module 304 adjusts the volume of the audio output, specifically for determining according to the current audio output environment identified by the environment recognition module 303. The volume range of the audio output, and according to the user's input, controls the volume adjustment module 304 to adjust the volume of the audio output within the volume range of the audio output.

The control module 302 may specifically be various circuits or chips having functions such as calculation, data processing, and the like, such as a baseband processing chip, a central processing unit (CPU), a digital signal processing (DSP) chip, and the like.

It should be noted that the voice output control device provided in this embodiment may be an earphone, and the earphone may be applied to MP3 (Moving Picture Experts Group Audio Layer III), mobile phone, etc. Audio output terminal products; audio output control devices can also be mobile phones, PDA (Per _SOn al Digital Assistant, personal digital assistant), notebook computer (Notebook Computer) Tablet PC (Tablet PC), MP3/MP4 player and other electronic The device, for example, the mobile phone learns the current voice output environment through a sound sensor such as a microphone, and then controls the hand The volume of the audio output of the machine, as well as the time of the statistical audio output. When the audio information is obtained through the ordinary earphone, the mobile terminal can control the volume of the audio output of the earphone and the time of continuously outputting the audio, thereby protecting the hearing. In addition, the control device of the audio output may also be other terminals, which is not specifically limited in this embodiment.

In summary, the control device provided in this embodiment adjusts the volume according to the identified current audio output environment and determines the preset audio output time, and turns off the audio output after reaching the preset audio output time, thereby The audio output is effectively controlled to solve the problem of hearing damage caused by long-term reception of audio output, and to avoid hearing damage caused by high volume noise; in addition, by adjusting the audio within the volume range of different audio outputs according to the user's input The volume of the output not only allows accurate control of the volume, but also further enhances the user experience. It should be noted that: the control device for the audio output provided by the foregoing embodiment only exemplifies the division of the above functional modules when controlling the audio output. In actual applications, the functions may be allocated by different functional modules according to requirements. Upon completion, the internal structure of the device is divided into different functional modules to perform all or part of the functions described above. In addition, the control device for the audio output provided by the foregoing embodiment is the same as the embodiment of the control method for the audio output. For the specific implementation process, refer to the method embodiment, and details are not described herein again.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

All or part of the steps in the embodiments of the present invention may be implemented by software, and the corresponding software programs may be stored in a readable storage medium.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

Claim

A method for controlling an audio output, the method comprising:

Detecting whether the headset is in the state of audio output;

If yes, identify the current audio output environment;

The method according to claim 1, wherein the detecting whether the earphone is in an audio output state comprises:

Detecting human body information on the earphone, and determining, according to the detected human body information, whether the earphone is in an audio output state, the human body information including at least one of a human body temperature, a human body pulse, and a pressure given by the ear .

The method according to claim 2, wherein the determining whether the earphone is in an audio output state according to the detected human body information comprises:

It is judged whether the detected human body information reaches a corresponding preset threshold, and if so, it is determined that the earphone is in an audio output state.

The method according to claim 1, wherein the identifying the current audio output environment comprises: acquiring a sound signal in a current audio output environment, converting the sound signal into feature data of a decibel number, and Identifying a current audio output environment corresponding to the feature data according to the quantized decibel number and the corresponding audio output environment.

The method according to claim 1, wherein the adjusting the volume of the audio output according to the identified current audio output environment comprises:

The volume range of the audio output is determined based on the identified current audio output environment, and the volume of the audio output is adjusted within the volume range of the audio output based on the user's input.

6. An audio output control device, wherein the control device comprises: a state detection module, a control module, an environment recognition module, and a volume adjustment module;

The state detecting module is configured to detect whether the earphone is in an audio output state; The control module is configured to enable the environment recognition module to identify a current audio output environment when the state detecting module detects that the earphone is in an audio output state; and according to the current audio output environment identified by the environment recognition module Controlling the volume adjustment module to adjust the volume of the audio output, and determining a preset audio output time according to the current audio output environment, and turning off the audio output after reaching the preset audio output time;

The control device according to claim 6, wherein the state detecting module specifically includes: a detecting unit, configured to detect human body information on the earphone;

The determining unit is configured to determine, according to the human body information detected by the detecting unit, whether the earphone is in an audio output state, and the human body information includes at least one of a human body temperature, a human body pulse, and a pressure given by the ear.

The control device according to claim 7, wherein the determining unit is specifically configured to determine whether the human body information detected by the detecting unit reaches a corresponding preset threshold, and if yes, determine the earphone In the state of audio output.

The control device according to claim 7 or claim 8, wherein the detecting unit comprises at least one of a temperature sensor, a pulse sensor and a pressure sensor.

The control device according to claim 6, wherein the environment identification module specifically includes: an acquiring unit, configured to acquire a sound signal in a current audio output environment;

a conversion unit, configured to convert the sound signal acquired by the acquiring unit into feature data of a decibel number; and an identifying unit, configured to identify, according to the quantized decibel number and the corresponding audio output environment, the feature data obtained by the converting unit Current audio output environment.

The control device according to claim 10, wherein the acquisition unit is specifically a sound sensor.

The control device according to claim 6, wherein the control module is configured to control the volume adjustment module to adjust the volume of the audio output according to the current audio output environment recognized by the environment recognition module. Specific And determining a volume range of the audio output according to the current audio output environment recognized by the environment recognition module, and controlling the volume adjustment module to adjust the volume of the audio output within a volume range of the audio output according to a user input.