阅读说明：本技术 变频宽的智能控制方法、音频设备及可读存储介质 (Variable-bandwidth intelligent control method, audio equipment and readable storage medium ) 是由 张利红 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种变频宽的智能控制方法,该方法包括：获取当前所在环境的环境噪音值；根据所述环境噪音值确定所述音频设备的目标工作参数,所述目标工作参数包括所述音频设备的滤波器的滤波频宽；控制所述音频设备按照所述目标工作参数运行,以调节所述音频设备的音频播放参数。本发明还包括音频设备及可读存储介质。本发明的变频宽的智能控制方法通过环境噪音值确定音频设备的目标工作参数,可针对不同环境场景,以通过不同环境场景对应的环境噪音值确定音频设备的不同目标工作参数,进而控制音频设备按照该目标工作参数运行,以适应于不同的环境场景调节音频设备的音频播放参数。(The invention discloses an intelligent control method of frequency conversion width, which comprises the following steps: acquiring an environment noise value of the current environment; determining a target working parameter of the audio equipment according to the environment noise value, wherein the target working parameter comprises a filtering bandwidth of a filter of the audio equipment; and controlling the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment. The invention also includes an audio device and a readable storage medium. The intelligent control method of variable bandwidth determines the target working parameters of the audio equipment through the environmental noise values, can determine different target working parameters of the audio equipment through the environmental noise values corresponding to different environmental scenes aiming at different environmental scenes, and further controls the audio equipment to operate according to the target working parameters so as to adapt to different environmental scenes to adjust the audio playing parameters of the audio equipment.)

1. An intelligent control method of variable bandwidth is characterized in that the intelligent control method of variable bandwidth comprises the following steps:

acquiring an environment noise value of the current environment;

determining a target working parameter of the audio equipment according to the environment noise value, wherein the target working parameter comprises the filtering bandwidth of a filter of the audio equipment;

and controlling the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment.

2. The method for intelligent control of bandwidth varying according to claim 1, wherein said step of determining target operating parameters of said audio device based on said ambient noise level comprises:

acquiring a preset noise level corresponding to the environment noise value;

and determining target working parameters of the audio equipment according to the preset noise level.

3. The method for intelligent control of bandwidth varying according to claim 1, wherein said step of determining target operating parameters of said audio device based on said ambient noise level comprises:

determining the use scene of the audio equipment according to the environment noise value;

and determining a target working parameter of the audio equipment according to the use scene, wherein the environmental noise value of the use scene is in negative correlation with the bandwidth of a filter in the target working parameter.

4. The method for intelligent control of bandwidth varying according to claim 3, wherein said step of determining target operating parameters of said audio device according to said usage scenario comprises:

when the scene is a noisy scene, the bandwidth of a filter of the audio equipment adopts a first preset bandwidth range;

when the scene is a quiet scene, the bandwidth of the filter of the audio device adopts a second preset bandwidth range, the bandwidth width occupied by the first preset bandwidth range is smaller than the bandwidth width occupied by the second preset bandwidth range, and the bandwidth corresponding to the second preset bandwidth range includes the bandwidth corresponding to the first preset bandwidth range.

5. The method according to claim 1, wherein said step of obtaining the noise level of the current environment comprises:

acquiring all noise values of the current environment, wherein the noise values comprise the environment noise values;

acquiring audio playing parameters corresponding to audio played through a loudspeaker;

and determining the environmental noise value of the current environment according to the noise value and the audio playing parameter.

6. The method of claim 1, wherein the intelligent control of bandwidth varying further comprises:

acquiring the current working state of the audio equipment;

and when the working state is a call state or an audio playing state, executing the step of acquiring the environmental noise value of the current environment.

7. The method according to any one of claims 1-6, wherein the target operating parameters further comprise at least one of a limit displacement of a speaker of the audio device and a limit temperature of the speaker of the audio device.

8. An intelligent control device with variable bandwidth, characterized in that the intelligent control device with variable bandwidth comprises:

the information acquisition module is used for acquiring the environmental noise value of the current environment;

the determining module is used for determining a target working parameter of the audio equipment according to the environment noise value, wherein the target working parameter comprises the filtering bandwidth of a filter of the audio equipment;

and the control module is used for controlling the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment.

9. An audio device, characterized in that the audio device comprises: a memory, a processor and a variable-bandwidth intelligent control program stored in the memory and operable on the processor, wherein the variable-bandwidth intelligent control program when executed by the processor implements the steps of the variable-bandwidth intelligent control method according to any one of claims 1-7.

10. A readable storage medium, wherein the readable storage medium stores a variable-bandwidth intelligent control program, and the variable-bandwidth intelligent control program, when executed by a processor, implements the steps of the variable-bandwidth intelligent control method according to any one of claims 1-7.

Technical Field

The present invention relates to the field of audio device technologies, and in particular, to an intelligent control method for variable bandwidth, an audio device, and a readable storage medium.

Background

At present, along with audio frequency class product volume is littleer and more, on the one hand the user requires more and more high to the tone quality of audio frequency class product, on the other hand, when requiring to carry portablely, audio frequency class product is required the low big acoustic pressure and loudness of having simultaneously of consumption.

In the practical application process, the current audio products adopt the intelligent power amplifier, so that the audio products can reach larger sound pressure level and have better playing effect while protecting devices from being damaged by excessive work based on fixed target working parameters through the intelligent power amplifier, but the work based on the fixed target working parameters cannot be suitable for adjusting the environment scene where the audio products are located, so that the audio sound played by the audio products is too small or too large when the audio products run according to the fixed target working parameters, and the using effect of the audio products is influenced.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention mainly aims to provide a variable-bandwidth intelligent control method, audio equipment and a readable storage medium, and aims to solve the problem that the audio equipment cannot be suitable for adjusting the environmental scene where an audio product is located by an intelligent power amplifier based on fixed target working parameters to influence the use effect of the audio product.

In order to achieve the above object, the present invention provides an intelligent control method for variable bandwidth, which comprises:

acquiring an environment noise value of the current environment;

determining a target working parameter of the audio equipment according to the environment noise value, wherein the target working parameter comprises the filtering bandwidth of a filter of the audio equipment;

and controlling the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment.

Optionally, the step of determining the target operating parameter of the audio device according to the environmental noise value includes:

acquiring a preset noise level corresponding to the environment noise value;

and determining target working parameters of the audio equipment according to the preset noise level.

Optionally, the step of determining the target operating parameter of the audio device according to the environmental noise value includes:

determining the use scene of the audio equipment according to the environment noise value;

and determining a target working parameter of the audio equipment according to the use scene, wherein the environmental noise value of the use scene is in negative correlation with the bandwidth of a filter in the target working parameter.

Optionally, the step of determining the target operating parameter of the audio device according to the usage scenario includes:

when the scene is a noisy scene, the bandwidth of a filter of the audio equipment adopts a first preset bandwidth range;

when the scene is a quiet scene, the bandwidth of the filter of the audio device adopts a second preset bandwidth range, the bandwidth width occupied by the first preset bandwidth range is smaller than the bandwidth width occupied by the second preset bandwidth range, and the bandwidth corresponding to the second preset bandwidth range includes the bandwidth corresponding to the first preset bandwidth range.

Optionally, the step of obtaining the noise value of the current environment includes:

acquiring all noise values of the current environment, wherein the noise values comprise the environment noise values;

acquiring audio playing parameters corresponding to audio played through a loudspeaker;

and determining the environmental noise value of the current environment according to the noise value and the audio playing parameter.

Optionally, the method for intelligently controlling variable bandwidth further includes:

acquiring the current working state of the audio equipment;

and when the working state is a call state or an audio playing state, executing the step of acquiring the environmental noise value of the current environment.

Optionally, the target operating parameter further comprises at least one of a limit displacement of a speaker of the audio device and a limit temperature of the speaker of the audio device.

In addition, to achieve the above object, the present invention further provides a bandwidth-varying intelligent control device, including:

the information acquisition module is used for acquiring the environmental noise value of the current environment;

the determining module is used for determining a target working parameter of the audio equipment according to the environment noise value, wherein the target working parameter comprises the filtering bandwidth of a filter of the audio equipment;

and the control module is used for controlling the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment.

Further, to achieve the above object, the present invention also provides an audio apparatus comprising: the intelligent control program with variable bandwidth is stored in the memory and can run on the processor, and when being executed by the processor, the intelligent control program with variable bandwidth realizes the steps of the intelligent control method with variable bandwidth.

In addition, to achieve the above object, the present invention further provides a readable storage medium, on which a variable-bandwidth intelligent control program is stored, and the variable-bandwidth intelligent control program, when executed by the processor, implements the steps of the variable-bandwidth intelligent control method as described above.

The intelligent control method of variable bandwidth, the audio equipment and the readable storage medium provided by the invention can determine the target working parameters of the audio equipment through the environmental noise values, can determine different target working parameters of the audio equipment through the environmental noise values corresponding to different environmental scenes aiming at different environmental scenes, further control the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment to adapt to different environmental scenes, in addition, the target working parameters comprise the filtering bandwidth of the filter of the audio equipment, determine different target working parameters of the audio equipment based on the environmental noise values corresponding to different environmental scenes, determine different filtering bandwidths of the filter of the audio equipment in different environmental scenes, realize that the audio equipment suitable for different environmental scenes works according to different filtering bandwidths so as to adjust the audio playing parameters of the audio equipment, the audio equipment is played according to the audio playing parameters suitable for the environmental scene, and the using effect of the audio equipment is improved.

Drawings

Fig. 1 is a schematic structural diagram of an audio device according to various embodiments of the bandwidth varying intelligent control method of the present invention;

FIG. 2 is a schematic flow chart of a first embodiment of a bandwidth varying intelligent control method according to the present invention;

FIG. 3 is a schematic flow chart of a second embodiment of the bandwidth varying intelligent control method of the present invention;

FIG. 4 is a schematic diagram of a module of the bandwidth-varying intelligent control device according to the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The invention provides an intelligent control method of variable bandwidth, which comprises the following steps:

acquiring an environment noise value of the current environment; determining a target working parameter of the audio equipment according to the environment noise value, wherein the target working parameter comprises the filtering bandwidth of a filter of the audio equipment; and controlling the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment.

The intelligent control method of variable bandwidth provided by the invention determines the target working parameter of the audio equipment through the environmental noise value, different target working parameters of the audio equipment can be determined according to different environmental scenes through the environmental noise values corresponding to the different environmental scenes, further controlling the audio device to operate according to the target operating parameter to adjust the audio playing parameter of the audio device to adapt to different environmental scenes, wherein the target operating parameter comprises the filtering bandwidth of a filter of the audio device, different target operating parameters of the audio device are determined based on the environmental noise values corresponding to different environmental scenes, different filter bandwidths for the filter of the audio equipment to work are determined in different environmental scenes, so that the audio equipment can work according to different filter bandwidths and is suitable for different environmental scenes, and adjusting the audio playing parameters of the audio equipment to enable the audio equipment to play according to the audio playing parameters suitable for the environmental scene.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an audio device according to various embodiments of the bandwidth varying intelligent control method of the present invention. As shown in fig. 1, the audio device may include: a memory 101 and a processor 102. Those skilled in the art will appreciate that the block diagram of the terminal shown in fig. 1 does not constitute a limitation of the terminal, and that the terminal may include more or less components than those shown, or may combine certain components, or a different arrangement of components. The memory 101 stores an operating system and a bandwidth-varying intelligent control program. The processor 102 is a control center of the audio device, and the processor 102 executes the bandwidth varying intelligent control program stored in the memory 101 to implement the steps of the embodiments of the bandwidth varying intelligent control method of the present invention.

Optionally, the audio device may further include a Display unit 103, and the Display unit 103 includes a Display panel, which may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like, and is used to output an interface for displaying user browsing.

It should be noted that the audio device is mainly a general term for audio input and output devices, and includes many types of products, which can be generally classified into the following: power amplifier, audio amplifier, multimedia console, digital sound console, audio frequency sampling card, synthesizer, well high frequency audio amplifier and microphone, sound card, earphone etc. in the PC, other peripheral audio equipment include: professional microphone series, earphones, a receiving and amplifying system and the like.

It should be noted that the audio device is provided with an intelligent power amplifier. The intelligent power amplifier can realize intelligent boosting and adjusting of output voltage, maximum loudness and optimal sound effect output are achieved, and the loudspeaker can achieve the maximum loudness while the loudspeaker is protected from being damaged. The intelligent power amplifier detects the output voltage and current of the loudspeaker, calculates the real-time displacement and temperature value of the loudspeaker through the voltage and current, enables the level output to be the most optimal on the premise of ensuring no mechanical damage and thermal damage, sets a safety protection algorithm during operation, and ensures better, louder and clearer audio signals.

The working principle of the intelligent power amplifier is that low-frequency displacement is promoted, low-frequency output is promoted, and meanwhile, a displacement protection algorithm is arranged at a low-frequency output position, such as the displacement of a loudspeaker of audio equipment; in medium and high frequency, the temperature is calculated, temperature protection control is carried out, such as the limit temperature of a loudspeaker of the audio equipment is set, the medium and high frequency works at the relative maximum output, and the output is adjusted through thermal protection.

The temperature setting algorithm is mainly used for calculating the temperature of a voice coil of the loudspeaker by monitoring the voltage and the current of the loudspeaker and according to the voltage and current parameters, and the working limit temperature of the voice coil is used as a protection temperature setting basis.

In addition, the smart power amplifier has two functions: firstly, a protection function for protecting the device from being damaged by excessive work; second, effect class function when protecting the device, can promote tone quality to a certain extent.

Based on the structural block diagram of the audio device, the invention provides various embodiments of the bandwidth-variable intelligent control method.

In a first embodiment, the present invention provides a bandwidth varying intelligent control method, please refer to fig. 2, and fig. 2 is a flowchart illustrating the bandwidth varying intelligent control method according to the first embodiment of the present invention. In this embodiment, the method for intelligently controlling the variable bandwidth includes the following steps:

step S10, acquiring the environmental noise value of the current environment;

the ambient noise value is the noise value created by the ambient environment in the current environment, except for the sound played by the audio device.

Optionally, the step S10 of obtaining the environmental noise value of the current environment includes:

acquiring all noise values of the current environment, wherein the noise values comprise the environment noise values;

acquiring audio playing parameters corresponding to audio played through a loudspeaker;

and determining the environmental noise value of the current environment according to the noise value and the audio playing parameter.

All the noise values of the current environment can be obtained through a microphone arranged in the audio device, and it can be understood that all the noise values of the current environment can include the environmental noise values of the surrounding environment, and can also include the volume values corresponding to the sound played through the loudspeaker. The audio playing parameters corresponding to the audio played by the loudspeaker can be obtained by directly obtaining the volume value of the currently played audio of the audio equipment, wherein the audio playing parameters comprise the volume value.

The environmental noise value of the current environment is determined according to the noise value and the audio playing parameter, and can be directly obtained by subtracting the noise value and the volume value in the audio playing parameter.

Optionally, the number of the microphones disposed on the audio device may be one, or may also be at least two, where when the number of the microphones is at least two, the at least two microphones may form a microphone matrix to more accurately obtain all noise values of the current environment from multiple directions.

For example, first, one or at least two microphones collect all the sounds of the surrounding environment, i.e. all the noise values S1, where S1 includes both the ambient noise value N1 and the sounds S _ spk played by the speakers, i.e.:

S1＝N1+S_spk；------------①

meanwhile, the audio signal S _ spk1 of the device is directly extracted, and then the following is obtained through calculation:

S_spk＝S_spk1*H(s)；---------②

h(s) is a transfer function filter from the audio extraction point to the microphone, and h(s) can be obtained by reference signal debugging in the debugging stage.

Then, the surrounding environment noise N1 is obtained, and the surrounding environment noise value N1 is obtained by the first and second processes.

Step S20, determining a target working parameter of the audio equipment according to the environmental noise value, wherein the target working parameter comprises the filtering bandwidth of a filter of the audio equipment;

the target working parameter is a corresponding operating parameter for controlling the audio equipment in the working process or an operating parameter achieved after the audio equipment is adjusted. The target working parameters comprise the filtering bandwidth of a filter of the audio equipment, and when the filter works at different filtering bandwidths, the audio playing parameters of the audio equipment are different. For example, when the environmental noise value is larger, a narrower bandwidth is adopted as the bandwidth of the filter, so that the audio playing parameter of the audio device, such as the played volume value, is larger; when the environmental noise value is smaller, the wider bandwidth is adopted as the bandwidth of the filter, so that the audio playing parameters of the audio equipment, such as playing sounds with different sound pressure levels, enrich the sounds that can be heard by human ears, and improve the sound quality when the audio equipment plays the audio.

Optionally, the target operating parameter further comprises at least one of a limit displacement of a speaker of the audio device and a limit temperature of the speaker of the audio device. Wherein the limiting displacement of the loudspeaker of the audio device is a mechanical working displacement for limiting the loudspeaker of the audio device to ensure no mechanical damage during operation. The limiting temperature of the loudspeaker of the audio device is used to limit the operating temperature of the loudspeaker of the audio device during operation to ensure that there is no thermal damage. Wherein the working process is playing audio information.

Alternatively, the limiting displacement is taken to ensure a maximum displacement of the speaker without mechanical damage, and the limiting temperature is taken to ensure a maximum temperature of the speaker without thermal damage. In the practical application process, based on the limited displacement of audio equipment's speaker and the limited temperature of audio equipment's speaker can guarantee that audio equipment is in the course of the work, on the premise of no mechanical damage and no thermal damage for audio equipment is according to limited displacement and limited temperature during operation, can make audio equipment output clear loud audio signal.

The target working parameters of the audio equipment are determined according to the environmental noise value, the corresponding relation between the environmental noise value and the target working parameters can be preset, and the target working parameters corresponding to the environmental noise value are obtained on the basis of obtaining the environmental noise value on the basis of the corresponding relation.

In the practical application process, in order to avoid the frequent change of the target working parameters of the audio equipment due to the frequent change of the environmental noise value, the frequent adjustment of the audio equipment causes the mechanical damage of the audio equipment. As an alternative embodiment, step S20 includes:

acquiring a preset noise level corresponding to the environment noise value;

and determining target working parameters of the audio equipment according to the preset noise level.

The preset noise level refers to a noise range which is divided in advance and used for determining the noise degree of the environment where the audio equipment is located. The preset noise level can limit the range of the noise interval, each preset noise level corresponds to an environment noisy degree, the preset noise level is higher, the larger the environment noise value corresponding to the preset noise level is, and the larger the environment noisy degree of the audio equipment is.

And determining the target working parameters of the audio equipment according to the preset noise level, wherein the target working parameters of the audio equipment can be further determined according to the noise level on the basis of determining the noise level according to the environmental noise value based on the preset corresponding relation between the noise level and the target working parameters. The corresponding relationship may be a corresponding table of the noise level and the target working parameter, or a calculation formula between the environmental noise value in the noise level and the target working parameter, which is not limited herein.

And step S30, controlling the audio equipment to operate according to the target working parameters so as to adjust the audio playing parameters of the audio equipment.

On the basis of defining the target working parameters, the corresponding target working parameters comprise the filtering bandwidth of a filter, the limited displacement of a loudspeaker and the limited temperature of the loudspeaker, the audio equipment is controlled to operate according to the target working parameters, the actual displacement and the actual temperature of the loudspeaker can be determined by detecting the voltage and the current at the tail end of the loudspeaker in real time or in fixed time, and when the actual displacement is smaller than the limited displacement and/or the actual temperature is smaller than the limited temperature, the output voltage of the audio equipment can be adjusted, so that the actual temperature of the loudspeaker during the operation of the audio equipment approaches or equals to the limited temperature, the actual displacement of the loudspeaker approaches or equals to the limited displacement, larger sound pressure level and loudness are achieved, and the purpose of adjusting the audio playing parameters of the audio equipment is achieved.

It should be noted that, the actual displacement and the actual temperature of the speaker can be determined by detecting the voltage and the current at the end of the speaker in real time or at regular time as follows:

the actual temperature of the loudspeaker is also the temperature of the voice coil of the loudspeaker, wherein the calculation formula of the voice coil temperature is as follows: since the voice coil generally uses copper wire or copper-clad aluminum wire, the temperature of the voice coil is calculated according to the following formula:

Rt＝R0*[1+α(T_rel-T0)]；

wherein alpha is the temperature coefficient of the resistivity of the voice coil wire, is related to materials, and is set according to the voice coil wire of the loudspeaker, R0 is the corresponding voice coil direct current group at the temperature of T0, T0 is the temperature value corresponding to the normal temperature, Rt is the real-time resistance of the voice coil, and T _ rel is the real-time temperature of the voice coil. Wherein Rt is U/I, and is obtained by real-time monitoring voltage and current calculation at the end of the loudspeaker.

The actual displacement of the loudspeaker is calculated in real time by a TS parameter model of the loudspeaker in combination with the detected current and voltage across the loudspeaker. The actual displacement S is calculated as follows:

S＝1.414*(BL)*V/(Rdc*Mms)/sqrt(((2*pi()*F0)^2-(2*pi*Fre)^2)^2+(4*pi^2* F0*Fre/Qts)^2)

wherein: BL is the product of gap magnetic induction and effective voice coil wire length, the unit (T M), Rdc is the tested impedance value of the direct current signal when the voice coil is at rest, V is the loudspeaker monitoring voltage, Mms is the sum of the mass of each part participating in vibration of the loudspeaker during the motion process, including the drum paper part, the voice coil, the elastic wave and the mass of air participating in vibration, etc., the unit is gram, F0 is the lowest resonance frequency of the loudspeaker, Fre is the signal frequency, Qts is the total quality factor value of the loudspeaker.

As an optional implementation, the method for intelligently controlling variable bandwidth further includes:

acquiring the current working state of the audio equipment;

when the working state is a call state or an audio playing state, step S10 is executed to obtain the ambient noise value of the current environment.

In the practical application process, no matter audio equipment such as a sound box and an earphone is used for playing audio or audio equipment such as an earphone is used for answering a call, when the audio equipment is in a noisy environment, the listening effect of a user using the audio equipment is often influenced due to the interference of external environment noise.

The operating state of the audio device includes, but is not limited to, a call state, an audio play state, and a standby state. The audio playing state may be a video sound played when music is listened to and video is watched through the audio device.

The current working state of the audio device is obtained, and the current working state of the audio device may be determined by using the identification value of the working state identification based on the preset working state identification, for example, when the identification value of the working state identification is preset to be "00", the working state is indicated to be a call state, when the identification value of the working state identification is "01", the working state is indicated to be an audio playing state, and when the identification value of the working state identification is "10", the working state is indicated to be a standby state, which is not limited in this embodiment.

When the working state is the call state or the audio playing state, that is, when the user of the audio device is using the audio device to make a call or listen to sound, the user is susceptible to external interference, and the using effect is affected, the steps S10 to S30 may be executed to control the audio device to operate according to the target working parameters determined by the environmental noise values of different environmental scenes, so as to adapt to different environmental scenes to adjust the audio playing parameters of the audio device, and improve the call effect and/or the listening effect of the user.

In the technical solution disclosed in this embodiment, the target working parameter of the audio device is determined by the environmental noise value, different target working parameters of the audio device can be determined by the environmental noise values corresponding to different environmental scenes for different environmental scenes, and the audio device is further controlled to operate according to the target working parameter, so as to adjust the audio playing parameter of the audio device in response to different environmental scenes, furthermore, the target working parameter includes the filtering bandwidth of the filter of the audio device, different target working parameters of the audio device are determined based on the environmental noise values corresponding to different environmental scenes, different filtering bandwidths of the filter of the audio device are determined in different environmental scenes, so that the audio device can work according to different filtering bandwidths in response to different environmental scenes to adjust the audio playing parameter of the audio device, so that the audio device can play according to the audio playing parameter suitable for the environmental scenes, the use effect of the audio equipment is improved.

Referring to fig. 3, fig. 3 is a schematic flow chart of a second embodiment of the bandwidth varying intelligent control method according to the present invention. In this embodiment, step S20 includes:

step S21, determining the use scene of the audio equipment according to the environment noise value;

step S22, determining a target operating parameter of the audio device according to the usage scenario, where the ambient noise value of the usage scenario is inversely related to a bandwidth of a filter in the target operating parameter.

The usage scenario of the audio device is determined according to the ambient noise value, and the usage scenario may be divided in advance corresponding to different ambient noise values, for example, the usage scenario may be divided into two usage scenarios, namely noisy and quiet, or four usage scenarios, namely quiet, generally noisy and severely noisy, which is not limited herein. Based on the corresponding relation between the pre-divided environmental noise value and the use scene, the use scene of the audio equipment can be determined according to the environmental noise value on the basis of obtaining the environmental noise value.

As an example, the present example is described with an example of determining two usage scenarios according to the ambient noise value, and assuming that the ambient noise value N1 is greater than or equal to 60db (decibel) is classified as noisy, and the ambient noise value N1 is less than 60db (decibel) is classified as quiet. Referring to the following table, the corresponding relationship between the environmental noise value and the target operating parameter:

it should be noted that, when it is determined that the device is in a noisy environment based on the obtained environment noise value, according to the target working parameters corresponding to the noisy environment as in the table, the filtering bandwidth of the filter, the limited displacement of the speaker and the limited temperature of the speaker are set, so that the sound pressure level at 300-4KHz in the human sound frequency band is increased, and meanwhile, the power consumption output is not increased, so that the clear intelligibility and the loudness are ensured; similarly, when the device is determined to be in a quiet environment based on the acquired environment noise value, the filtering bandwidth of the filter, the limited displacement of the loudspeaker and the limited temperature of the loudspeaker are set according to the target working parameters corresponding to the quiet environment in the table so as to adapt to the quiet environment, so that the sound pressure level of a human sound frequency band at 200-8KHz is increased, meanwhile, the power consumption output is not increased, and the clear intelligibility and the loudness are ensured. The use environment is determined according to the environment noise value, the filter setting, the loudspeaker limiting displacement and the loudspeaker limiting temperature are adjusted in a self-adaptive mode, the optimal output is guaranteed, and the power consumption is saved.

In addition, compared with the noisy environment, the bandwidth range of the filter bandwidth of the filter in the quiet environment is larger than the bandwidth range of the filter bandwidth of the filter in the noisy environment, and the filter bandwidth of the filter in the quiet environment includes the filter bandwidth of the filter in the noisy environment. It should be noted that, in a noisy environment, a narrower filtering bandwidth is adopted as the filtering bandwidth of the filter, so that the audio playing parameter of the audio device is larger, that is, the sound pressure level at 300-4KHz in the human sound frequency band is increased, so that the human sound can be clearly heard in the noisy environment; under quiet environment, adopt the wider filtering bandwidth in order to regard as the filtering bandwidth of filter to make audio equipment's audio playback parameter abundanter, tone quality when in order to improve audio equipment broadcast audio frequency, also be, same power is under different bandwidths, outputs different sound pressure levels, is similar to fixed rivers, puts in the bucket of equidimension not, has different water levels, and this water level is with the sound pressure level size of similar sound, and the sound pressure level is big or small, and the loudness can increase.

In addition, it should be noted that the ambient noise level of the usage scenario is inversely related to the bandwidth of the filter in the target operating parameter. For example, the larger the environmental noise value is, the noisier the usage scene of the audio device is, in order to achieve the same power, and ensure the clear intelligibility and loudness of the audio played by the audio device, when the environmental noise value is greater than or equal to 60db, for example, the narrow bandwidth 300hz-4Khz is adopted, so that the sound pressure level of the human sound frequency band at the narrow filtering bandwidth, such as 300-4Khz, is increased, and the human sound can be clearly heard in the noisy environment; when the quiet environment is less than 60db, namely the audio equipment plays audio or the communication is interfered by the external environment less, the audio equipment outputs different sound pressure levels by adopting the bandwidth of 200Hz-8Khz, so that the audio quality of the audio equipment playing audio is improved.

As an alternative embodiment, step S22 includes:

when the scene is a noisy scene, the bandwidth of a filter of the audio equipment adopts a first preset bandwidth range;

when the scene is a quiet scene, the bandwidth of the filter of the audio device adopts a second preset bandwidth range, the bandwidth width occupied by the first preset bandwidth range is smaller than the bandwidth width occupied by the second preset bandwidth range, and the bandwidth corresponding to the second preset bandwidth range includes the bandwidth corresponding to the first preset bandwidth range.

Compared with the bandwidth width occupied by the second preset bandwidth range adopted by the filtering bandwidth of the filter under the quiet environment in the noisy environment, the bandwidth width occupied by the first preset bandwidth range adopted by the filtering bandwidth of the filter under the quiet environment is larger than the bandwidth width occupied by the first preset bandwidth range adopted by the filtering bandwidth of the filter under the noisy environment, and the bandwidth corresponding to the second preset bandwidth range contains the bandwidth corresponding to the first preset bandwidth range, namely the filtering bandwidth of the filter under the quiet environment contains the filtering bandwidth of the filter under the noisy environment.

It should be noted that, in a noisy environment, a narrower filtering bandwidth is adopted as the filtering bandwidth of the filter, so that the audio playing parameter of the audio device is larger, that is, the sound pressure level at a narrow filtering bandwidth, such as 300-4KHz, in a human sound frequency band is increased, so that human sound can be clearly heard in the noisy environment; under quiet environment, adopt the wider filtering bandwidth in order to regard as the filtering bandwidth of wave filter to make audio equipment's audio playback parameter richter, in order to improve the tone quality when audio equipment broadcast audio frequency, can simply understand that the same power is under the different bandwidth, outputs different sound pressure levels, is similar to fixed rivers, puts in the bucket of equidimension not, has different water levels, and this water level is with regard to the sound pressure level size of similar sound, and the sound pressure level is big or small more, and the loudness can increase.

Optionally, the first predetermined bandwidth range is 300Hz-4KHz, and the second predetermined bandwidth range is 200Hz-8 Khz.

In the technical solution disclosed in this embodiment, a usage scenario of the audio device is determined by the environmental noise value, and then a target working parameter of the audio device is determined according to the usage scenario, so that the audio device works according to the target working parameter, such as a bandwidth of a filter, adapted to each usage scenario in different usage scenarios, specifically, when the environmental noise value of the usage scenario is larger, a narrower bandwidth is adopted as a bandwidth of the filter, so that an audio playing parameter of the audio device is larger; when the environmental noise value of the using scene is smaller, the wider bandwidth is adopted as the bandwidth of the filter, so that the audio playing parameters of the audio equipment are richer, and the tone quality of the audio equipment when playing the audio is improved.

Referring to fig. 4, fig. 4 is a schematic block diagram of an intelligent control device with variable bandwidth according to the present invention. The present invention also provides a bandwidth-varying intelligent control device 100, wherein the bandwidth-varying intelligent control device 100 comprises:

an obtaining module 110, configured to obtain an environmental noise value of a current environment;

a determining module 120, configured to determine a target operating parameter of the audio device according to the environmental noise value, where the target operating parameter includes a filtering bandwidth of a filter of the audio device;

and the control module 130 is configured to control the audio device to operate according to the target operating parameter, so as to adjust an audio playing parameter of the audio device.

The invention also proposes an audio device comprising: the method comprises a memory, a processor and a bandwidth-variable intelligent control program which is stored in the memory and can run on the processor, wherein the bandwidth-variable intelligent control program realizes the steps of the bandwidth-variable intelligent control method in any embodiment when being executed by the processor.

The invention further provides a readable storage medium, on which a variable-bandwidth intelligent control program is stored, and when being executed by a processor, the variable-bandwidth intelligent control program implements the steps of the variable-bandwidth intelligent control method according to any one of the above embodiments.

In the embodiments of the audio device and the readable storage medium provided by the present invention, all technical features of the embodiments of the bandwidth varying intelligent control method are included, and the contents of the expansion and explanation of the specification are substantially the same as those of the embodiments of the bandwidth varying intelligent control method, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.