CN107436751A - Volume adjustment method, device, terminal equipment and storage medium - Google Patents

Abstract

The embodiment of the invention discloses a volume adjusting method, a volume adjusting device, terminal equipment and a storage medium, wherein the method comprises the steps of acquiring audio information of a sound source when the terminal equipment is detected to play the sound source; determining corresponding audio amplitude according to the audio information; determining an amplitude adjustment coefficient corresponding to the audio amplitude, dividing the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients, and adjusting the audio amplitude according to the sub-amplitude adjustment coefficients. According to the scheme, the volume adjusting efficiency is improved, and the power consumption of the terminal equipment is reduced.

Description

Volume adjustment method, device, terminal equipment and storage medium

technical field

Embodiments of the present invention relate to computer technology, and in particular, to a volume adjustment method, device, terminal equipment, and storage medium.

Background technique

As the popularity of terminal devices increases, more and more users use terminal devices to perform various functions to meet their own needs, such as using terminal devices to read text, watch videos, listen to music, play games, and so on. When the terminal device is playing audio and video, there are defects in the adjustment of the volume, which needs to be improved.

Contents of the invention

The invention provides a volume adjustment method, device, terminal equipment and storage medium, which improves the volume adjustment efficiency and reduces the power consumption of the terminal equipment.

In a first aspect, an embodiment of the present invention provides a volume adjustment method, including:

When it is detected that the terminal device is playing the audio source, the audio information of the audio source is obtained;

determining the corresponding audio amplitude according to the audio information;

Determine an amplitude adjustment coefficient corresponding to the audio amplitude, divide the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients, and adjust the audio amplitude according to the sub-amplitude adjustment coefficients.

In the second aspect, the embodiment of the present invention also provides a volume adjustment device, including:

An acquisition module, configured to acquire the audio information of the audio source when it is detected that the terminal device is playing the audio source;

An amplitude determination module, configured to determine the corresponding audio amplitude according to the audio information;

An adjustment coefficient determination module, configured to determine an amplitude adjustment coefficient corresponding to the audio amplitude, and divide the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients;

An adjustment module, configured to adjust the audio amplitude according to the sub-amplitude adjustment coefficient.

In the third aspect, the embodiment of the present invention also provides a terminal device, including: a processor, a memory, and a computer program stored on the memory and operable on the processor, and when the processor executes the computer program, the following is implemented: The volume adjustment method described in the embodiment of the present invention.

In the fourth aspect, the embodiment of the present invention also provides a storage medium containing executable instructions of the terminal device, and the executable instruction of the terminal device is used to perform the volume adjustment described in the embodiment of the present invention when executed by the processor of the terminal device method.

In the technical solution provided by the embodiment of the present invention, when it is detected that the terminal device is playing the sound source, the audio information of the sound source is obtained; the corresponding audio amplitude is determined according to the audio information; the amplitude adjustment coefficient corresponding to the audio amplitude is determined, The amplitude adjustment coefficient is divided into a preset number of sub-amplitude adjustment coefficients, and the audio amplitude is adjusted according to the sub-amplitude adjustment coefficients. This solution improves the volume adjustment efficiency and reduces the power consumption of the terminal equipment.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a flow chart of a volume adjustment method provided by an embodiment of the present invention;

Fig. 2 is a flowchart of another volume adjustment method provided by an embodiment of the present invention;

Fig. 3 is a flow chart of another volume adjustment method provided by an embodiment of the present invention;

Fig. 4 is a flowchart of another volume adjustment method provided by an embodiment of the present invention;

Fig. 5 is a flow chart of another volume adjustment method provided by an embodiment of the present invention

Fig. 6 is a structural block diagram of a volume adjustment device provided by an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are used to explain the present invention rather than limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

Fig. 1 is a flow chart of a volume adjustment method provided by an embodiment of the present invention. This embodiment is applicable to the situation of adjusting the volume when a terminal device plays a sound source, and the method can be executed by a terminal device provided by an embodiment of the present invention. , the volume adjustment device of the terminal equipment can be realized by means of software and/or hardware, as shown in Figure 1, the specific solution provided by this embodiment is as follows:

Step S101, when it is detected that the terminal device is playing a sound source, acquire audio information of the sound source.

The terminal device can play the audio source through the installed third-party application program or the audio and video playback software that comes with the system. Among them, it mainly includes the steps of acquiring, decoding and outputting the audio source file. Exemplarily, the obtained audio source file can be a multicast stream received through the network, and can also be an audio and video file stored locally on the terminal device; after obtaining the audio source file, load it into the memory buffer; The audio source file in the memory buffer is decoded. Before the decoding starts, if the audio source file also contains video data, the audio data and video data need to be separated, and the separated audio data is input to the audio decoder. Among them, audio decoding The device is mainly used to read the audio data in the memory buffer, obtain a digital audio signal, and convert the digital audio signal into an analog audio signal, and the playback device of the terminal device performs audio playback according to the analog audio signal. In one embodiment, when it is detected that the sound source play event is triggered, it is determined that the terminal device starts to play the sound source, wherein the trigger event may be the detected press of the play button displayed on the touch screen, or the detected When the playback device such as the speaker starts to play the sound, it is determined that the terminal device plays the sound source.

When it is detected that the terminal device is playing the sound source, the audio information of the sound source is acquired. In one embodiment, the digital audio signal decoded by the audio decoder may be sampled to determine the audio information corresponding to the audio source. In another embodiment, the original file of the currently played audio source can also be obtained, and the audio information corresponding to the audio source can be determined by analyzing the original file. In another embodiment, taking the Android system as an example, the audio information of the audio source can be acquired through the android.media.MediaRecorder class or the android.media.AudioRecord class.

Step S102. Determine the corresponding audio amplitude according to the audio information.

Amplitude refers to the maximum distance that an object deviates from its original position during the vibration process. The loudness of the sound heard by the human ear is related to the amplitude of the sound source. The larger the amplitude, the stronger the loudness. In one embodiment, the digital audio signal decoded by the audio decoder can be sampled to obtain the amplitude information within the preset time period T, wherein the amplitude information can be composed of multiple amplitude values, according to the obtained multiple amplitudes The value can correspondingly determine the amplitude curve of the sound source played within the preset time period T. In another embodiment, taking the Android system as an example, the audio information of the sound source can be acquired through the class android.media.MediaRecorder or class android.media.AudioRecord to obtain the corresponding amplitude. In another embodiment, when the audio information obtained in step S101 is the original file corresponding to the sound source, the corresponding amplitude can be obtained by parsing the original file.

In one embodiment, when the sound source is detected, the amplitude is determined every preset time (such as 1s, 3s or 10s), or in real time, the amplitude of each frame of the audio information is determined. Specifically, the acquiring the audio information of the sound source includes: acquiring audio frame information of the sound source; correspondingly, determining the amplitude of the sound source according to the audio information includes: determining the amplitude of the sound source according to the audio frame information The amplitude of a frame. Exemplarily, when it is detected that the audio source is being played, the audio source file is parsed to obtain an audio frame sequence, and the corresponding amplitude is determined according to each frame of the audio frame sequence.

Step S103: Determine an amplitude adjustment coefficient corresponding to the audio amplitude, divide the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients, and adjust the audio amplitude according to the sub-amplitude adjustment coefficients.

In one embodiment, in order to increase the volume of the low-amplitude region of the sound source, a larger amplitude adjustment coefficient is assigned to the low-amplitude audio amplitude, and a smaller adjustment coefficient is assigned to the high-amplitude audio amplitude. Exemplarily, an amplitude adjustment factor of 1.2 is allocated to audio amplitudes less than -3db or greater than -10db, and an amplitude adjustment factor of 2 is allocated to audio amplitudes less than -10db and greater than -50db. When the amplitude adjustment coefficient 1.2 transitions to the next audio amplitude that needs to be adjusted by the amplitude adjustment coefficient 2, there will be an obvious problem of abrupt hearing caused by the jump of the amplitude adjustment coefficient. Optionally, the dividing the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients includes: when it is detected that the amplitude adjustment coefficients corresponding to different audio amplitudes meet a preset condition, dividing the amplitude adjustment coefficient into preset sub-amplitude adjustment coefficients The number of sub-amplitude adjustment coefficients, the sub-amplitude adjustment coefficients are obtained according to the linear or nonlinear division of the amplitude adjustment coefficients. Wherein, the preset condition can be that the amplitude adjustment coefficients of adjacent audio amplitudes are inconsistent, such as the amplitude adjustment coefficient changes from 1 to 2, or the amplitude adjustment coefficient changes from 2 to 1.2, etc. At this time, the amplitude adjustment coefficients are divided into It is a preset number of sub-amplitude adjustment coefficients. Exemplarily, when the determined amplitude adjustment coefficients of adjacent audio amplitudes are 1.2 and 2, 10 levels can be further divided between 1.2 and 2, that is, 1.28, 1.36, 1.42,...,2. Wherein, the division of the sub-amplitude adjustment coefficients may be linear or non-linear. In the adjustment process, in the transition stage of the amplitude adjustment coefficient 1.2 to 2, every n (exemplary n is greater than 1 and less than or equal to 20) frames of audio frames can be corresponding to a sub-amplitude adjustment coefficient, and the amplitude of each audio frame can be sequentially Adjustment. Exemplarily, when the amplitude adjustment coefficient is changed from 1.2 to 2, the amplitude adjustment coefficient corresponding to the 1-20th audio frame when the change occurs is 1.28, the amplitude adjustment coefficient corresponding to the 21-40th frame is 1.36, and so on.

In a possible embodiment, the process of adjusting the audio amplitude may be: parsing the audio source file, modifying the data representing the amplitude information in the obtained audio data, and then packaging after the modification, when the buffer reaches the corresponding The audio source file is played and the audio amplitude has been increased correspondingly; it can also be, in the decoding process of the audio source playback, the audio amplitude is obtained by analyzing the obtained digital audio signal, and the amplitude data is multiplied by the corresponding adjustment coefficient to change the amplitude, and then adjust the volume of the sound source. Thus, the volume of the audio source can be adjusted without changing the original volume of the terminal device system. The adjustment process can be performed before the audio file enters the buffer to reduce the playback load, or it can be aimed at the audio files in the buffer. The content of the audio source is adjusted to improve the adjustment efficiency.

Fig. 2 is a flow chart of another volume adjustment method provided by an embodiment of the present invention. Optionally, the determining the amplitude adjustment coefficient corresponding to the audio amplitude includes: The amplitude adjustment factor corresponding to the amplitude. As shown in Figure 2, the technical solution provided by this embodiment is specifically as follows:

Step S201, when it is detected that the terminal device is playing a sound source, acquire audio information of the sound source.

Step S202. Determine the corresponding audio amplitude according to the audio information.

Step S203. Determine an amplitude adjustment coefficient corresponding to the audio amplitude according to the magnitude of the audio amplitude.

In one embodiment, the average amplitude of the audio amplitude of the preset length can be determined by obtaining the audio amplitude of the preset length, and then the corresponding amplitude adjustment coefficient can be determined according to the average amplitude. Exemplarily, it can be determined through a pre-stored mapping relationship table, and a possible determination method is shown in the following table:

Table 1

average amplitude Adjustment coefficient Greater than -3db or less than -50db 1 Less than -10db Greater than -50db 2 Less than -3db Greater than -10db 1.5

As shown in Table 1, when the average amplitude is greater than -3db or less than -50db, the gain is not adjusted; when the amplitude is less than -10db and greater than -50db, the amplitude is in the high amplitude area, and the gain coefficient is assigned to it. 1.5, when the amplitude When it is less than -10db and greater than -50db, it is a medium amplitude area, and the amplitude coefficient is assigned to it as 2 to significantly increase the amplitude of this part of the amplitude.

Step S204: Divide the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients, and adjust the audio amplitude according to the sub-amplitude adjustment coefficients.

From the above, it can be seen that by assigning different amplitude adjustment coefficients to different audio amplitudes, it avoids breaking the sound and reduces the increase in the amplitude of the noise. On this basis, further subdividing the adjustment coefficients makes the sound source playback process The mid-range sound is reasonable in size and the sense of hearing is smooth.

Fig. 3 is a flow chart of another volume adjustment method provided by an embodiment of the present invention. Optionally, the determination of the amplitude adjustment coefficient corresponding to the audio amplitude includes: according to the audio amplitude and the volume of the terminal device The information determines an amplitude adjustment coefficient corresponding to the audio amplitude, and the volume information includes volume value information, volume increase information, or volume decrease information. As shown in Figure 3, the technical solution provided by this embodiment is specifically as follows:

Step S301, when it is detected that the terminal device is playing a sound source, acquire audio information of the sound source.

Step S302. Determine the corresponding audio amplitude according to the audio information.

Step S303. Determine an amplitude adjustment coefficient corresponding to the audio amplitude according to the magnitude of the audio amplitude and the volume information of the terminal device.

In an embodiment, the acquired volume information may be one or more of current volume value information, volume increase information, and volume decrease information of the terminal device. Correspondingly, determining the corresponding amplitude adjustment coefficient according to the volume information may be determined according to one or more of current volume value information, volume increase information, and volume decrease information in the volume information.

Exemplarily, the terminal device is divided into 18 adjustable levels from mute to maximum volume, and each level corresponds to a volume value. When the terminal device plays a sound source, the current volume of the system can be obtained through the get volume method of the volume management component of the system. Volume value: When the user adjusts the volume up or down through the adjustment button or touch screen of the terminal device, it is determined whether the volume of the current terminal device is increased or decreased accordingly. In one embodiment, the following table can be used as an example to determine the corresponding amplitude adjustment coefficient according to the current volume value:

Table 2

volume value Adjustment coefficient 5 0.5 10 1.5 15 2

In another embodiment, the following table can be used as an example to determine the corresponding amplitude adjustment coefficient according to the current volume increase information or volume decrease information:

table 3

volume value Adjustment coefficient Increase 1.5 decrease 0.8

In another embodiment, the amplitude adjustment coefficient can also be jointly determined according to the volume increase information or the volume decrease information and the volume value of the current terminal, so as to adjust the audio amplitude.

In a possible embodiment, the method of determining the amplitude adjustment coefficient corresponding to the audio amplitude may be: assigning the first amplitude adjustment coefficient to the audio amplitude greater than the first preset threshold or less than the third preset threshold, and assigning the first amplitude adjustment coefficient to the audio amplitude less than or An audio amplitude equal to the first preset threshold greater than the second preset threshold is assigned a second amplitude adjustment coefficient, and an audio amplitude less than or equal to the second preset threshold greater than the third preset threshold is assigned a third amplitude adjustment coefficient, wherein the The first amplitude adjustment coefficient is smaller than the second amplitude adjustment coefficient, and the second amplitude adjustment coefficient is smaller than the third amplitude adjustment coefficient. Wherein, the first preset threshold may be -3db, the second preset threshold may be -10db, and the third preset threshold may be -50db, correspondingly, the first amplitude adjustment coefficient is 1 (that is, no adjustment is performed), The second amplitude adjustment coefficient is 1.4, and the third amplitude adjustment coefficient is 1.8. Among them, the amplitude adjustment is not performed for the audio amplitude that is too large (greater than -3db) or too small (less than -50db), which avoids the broken sound caused by the excessive amplitude adjustment, and also avoids the noise that is too small. The problem of noise enhancement caused by high-level adjustment has further optimized the volume adjustment method.

Step S304: Divide the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients, and adjust the audio amplitude according to the sub-amplitude adjustment coefficients.

Fig. 4 is a flow chart of another volume adjustment method provided by an embodiment of the present invention. Optionally, after determining the amplitude adjustment coefficient corresponding to the audio amplitude, it further includes: The amplitude adjustment coefficient is adjusted; correspondingly, the dividing the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients includes: dividing the adjusted amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients. As shown in Figure 4, the technical solution provided by this embodiment is specifically as follows:

Step S401. Acquire audio information of the sound source when it is detected that the terminal device is playing the sound source.

Step S402. Determine the corresponding audio amplitude according to the audio information.

Step S403. Determine the amplitude adjustment coefficient corresponding to the audio amplitude, and adjust the amplitude adjustment coefficient according to the impedance value of the playback device of the terminal device.

In an embodiment, the impedance value of the playback device installed in the terminal device (such as a loudspeaker) may be detected through a power amplifier chip, or the impedance of the playback device may be detected physically. Exemplarily, a larger impedance value corresponds to a larger adjustment of the amplitude adjustment coefficient. Specifically, assuming that the nominal impedance value of the playback device is x, and the impedance value obtained through detection is 1.2x, then correspondingly on the basis of the determined amplitude adjustment coefficient, the amplitude adjustment coefficient is multiplied by 1.2 as the adjusted Amplitude adjustment factor.

Step S404. Divide the adjusted amplitude adjustment coefficients into a preset number of sub-amplitude adjustment coefficients, and adjust the audio amplitude according to the sub-amplitude adjustment coefficients.

It can be seen from the above that in the process of adjusting the amplitude of the sound source, the impedance value of the playback device is introduced as one of the parameters to determine the amplitude adjustment coefficient, which prevents the impedance value of the playback device from increasing with the increase of the playback time, which will affect the normal playback process. The problem of the influence of the volume in the system makes the adjusted volume better meet the needs of users, and further improves the effect of volume adjustment.

5 is a flow chart of another volume adjustment method provided by an embodiment of the present invention. Optionally, after determining the amplitude adjustment coefficient corresponding to the audio amplitude, it further includes: The amplitude adjustment coefficient is adjusted; correspondingly, the dividing the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients includes: dividing the adjusted amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients. As shown in Figure 5, the technical solution provided by this embodiment is specifically as follows:

Step S501, when it is detected that the terminal device is playing a sound source, acquire audio information of the sound source.

Step S502. Determine the corresponding audio amplitude according to the audio information.

Step S503. Determine an amplitude adjustment coefficient corresponding to the audio amplitude, and adjust the amplitude adjustment coefficient according to the noise value of the environment where the terminal device is located.

In an embodiment, the noise of the current environment may be collected through a microphone installed on the terminal device to determine a corresponding noise value. Exemplarily, a larger noise value corresponds to a larger adjustment of the amplitude adjustment coefficient. Specifically, assuming that the noise value of the terminal device is y in a quiet environment, and the determined noise value is 1.5y when the terminal device is in an outdoor or noisy environment, then correspondingly based on the determined amplitude adjustment coefficient, the The amplitude adjustment factor is multiplied by 1.5 as the adjusted amplitude adjustment factor. It should be noted that the impedance value, the noise value, and the magnitude of the audio amplitude can also be used together to determine the amplitude adjustment coefficient of the sound source.

Step S504: Divide the adjusted amplitude adjustment coefficients into a preset number of sub-amplitude adjustment coefficients, and adjust the audio amplitude according to the sub-amplitude adjustment coefficients.

It can be seen from the above that in the process of adjusting the amplitude of the sound source, the impact of noise on the volume of the terminal equipment is considered, and the determined noise value is used as one of the parameters for determining the amplitude adjustment coefficient, so that the adjusted volume is more in line with user needs. Further improved the volume adjustment effect.

Fig. 6 is a structural block diagram of a volume adjustment device provided by an embodiment of the present invention, the device is used to execute the volume adjustment method provided by the above embodiment, and has corresponding functional modules and beneficial effects for executing the method. As shown in FIG. 6 , the device specifically includes: an acquisition module 101 , an amplitude determination module 102 , an adjustment coefficient determination module 103 and an adjustment module 104 .

Wherein, the obtaining module 101 is configured to obtain audio information of the sound source when it is detected that the terminal device is playing the sound source.

The terminal device can play the audio source through the installed third-party application program or the audio and video playback software that comes with the system. Among them, it mainly includes the steps of acquiring, decoding and outputting the audio source file. Exemplarily, the obtained audio source file can be a multicast stream received through the network, and can also be an audio and video file stored locally on the terminal device; after obtaining the audio source file, load it into the memory buffer; The audio source file in the memory buffer is decoded. Before the decoding starts, if the audio source file also contains video data, the audio data and video data need to be separated, and the separated audio data is input to the audio decoder. Among them, audio decoding The device is mainly used to read the audio data in the memory buffer, obtain a digital audio signal, and convert the digital audio signal into an analog audio signal, and the playback device of the terminal device performs audio playback according to the analog audio signal. In one embodiment, when it is detected that the sound source play event is triggered, it is determined that the terminal device starts to play the sound source, wherein the trigger event may be the detected press of the play button displayed on the touch screen, or the detected When the playback device such as the speaker starts to play the sound, it is determined that the terminal device plays the sound source.

When it is detected that the terminal device is playing the sound source, the audio information of the sound source is acquired. In one embodiment, the digital audio signal decoded by the audio decoder may be sampled to determine the audio information corresponding to the audio source. In another embodiment, the original file of the currently played audio source can also be obtained, and the audio information corresponding to the audio source can be determined by analyzing the original file. In another embodiment, taking the Android system as an example, the audio information of the audio source can be acquired through the android.media.MediaRecorder class or the android.media.AudioRecord class.

The amplitude determination module 102 is configured to determine the corresponding audio amplitude according to the audio information.

Amplitude refers to the maximum distance that an object deviates from its original position during the vibration process. The loudness of the sound heard by the human ear is related to the amplitude of the sound source. The larger the amplitude, the stronger the loudness. In one embodiment, the digital audio signal decoded by the audio decoder can be sampled to obtain the amplitude information within the preset time period T, wherein the amplitude information can be composed of multiple amplitude values, according to the obtained multiple amplitudes The value can correspondingly determine the amplitude curve of the sound source played within the preset time period T. In another embodiment, taking the Android system as an example, the audio information of the sound source can be acquired through the class android.media.MediaRecorder or class android.media.AudioRecord to obtain the corresponding amplitude. In another embodiment, when the audio information obtained in step S101 is the original file corresponding to the sound source, the corresponding amplitude can be obtained by parsing the original file.

In one embodiment, when the sound source is detected, the amplitude is determined every preset time (such as 1s, 3s or 10s), or in real time, the amplitude of each frame of the audio information is determined. Specifically, the acquiring the audio information of the sound source includes: acquiring audio frame information of the sound source; correspondingly, determining the amplitude of the sound source according to the audio information includes: determining the amplitude of the sound source according to the audio frame information The amplitude of a frame. Exemplarily, when it is detected that the audio source is being played, the audio source file is parsed to obtain an audio frame sequence, and the corresponding amplitude is determined according to each frame of the audio frame sequence.

The adjustment coefficient determination module 103 is configured to determine an amplitude adjustment coefficient corresponding to the audio amplitude, and divide the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients.

In one embodiment, in order to increase the volume of the low-amplitude region of the sound source, a larger amplitude adjustment coefficient is assigned to the low-amplitude audio amplitude, and a smaller adjustment coefficient is assigned to the high-amplitude audio amplitude. Exemplarily, an amplitude adjustment factor of 1.2 is allocated to audio amplitudes less than -3db or greater than -10db, and an amplitude adjustment factor of 2 is allocated to audio amplitudes less than -10db and greater than -50db. When the amplitude adjustment coefficient 1.2 transitions to the next audio amplitude that needs to be adjusted by the amplitude adjustment coefficient 2, there will be an obvious problem of abrupt hearing caused by the jump of the amplitude adjustment coefficient. Optionally, the dividing the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients includes: when it is detected that the amplitude adjustment coefficients corresponding to different audio amplitudes meet a preset condition, dividing the amplitude adjustment coefficient into preset sub-amplitude adjustment coefficients The number of sub-amplitude adjustment coefficients, the sub-amplitude adjustment coefficients are obtained according to the linear or nonlinear division of the amplitude adjustment coefficients. Wherein, the preset condition can be that the amplitude adjustment coefficients of adjacent audio amplitudes are inconsistent, such as the amplitude adjustment coefficient changes from 1 to 2, or the amplitude adjustment coefficient changes from 2 to 1.2, etc. At this time, the amplitude adjustment coefficients are divided into It is a preset number of sub-amplitude adjustment coefficients. Exemplarily, when the determined amplitude adjustment coefficients of adjacent audio amplitudes are 1.2 and 2, 10 levels can be further divided between 1.2 and 2, that is, 1.28, 1.36, 1.42,...,2. Wherein, the division of the sub-amplitude adjustment coefficients may be linear or non-linear. In the adjustment process, in the transition stage of the amplitude adjustment coefficient 1.2 to 2, every n (exemplary n is greater than 1 and less than or equal to 20) frames of audio frames can be corresponding to a sub-amplitude adjustment coefficient, and the amplitude of each audio frame can be sequentially Adjustment. Exemplarily, when the amplitude adjustment coefficient is changed from 1.2 to 2, the amplitude adjustment coefficient corresponding to the 1-20th audio frame when the change occurs is 1.28, the amplitude adjustment coefficient corresponding to the 21-40th frame is 1.36, and so on.

An adjustment module 104, configured to adjust the audio amplitude according to the sub-amplitude adjustment coefficient.

In a possible embodiment, the process of adjusting the audio amplitude may be: parsing the audio source file, modifying the data representing the amplitude information in the obtained audio data, and then packaging after the modification, when the buffer reaches the corresponding The audio source file is played and the audio amplitude has been increased correspondingly; it can also be, in the decoding process of the audio source playback, the audio amplitude is obtained by analyzing the obtained digital audio signal, and the amplitude data is multiplied by the corresponding adjustment coefficient to change the amplitude, and then adjust the volume of the sound source. Thus, the volume of the audio source can be adjusted without changing the original volume of the terminal device system. The adjustment process can be performed before the audio file enters the buffer to reduce the playback load, or it can be aimed at the audio files in the buffer. The content of the audio source is adjusted to improve the adjustment efficiency.

In the technical solution provided by this embodiment, when it is detected that the terminal device is playing the sound source, the audio information of the sound source is acquired; the corresponding audio amplitude is determined according to the audio information; the amplitude adjustment coefficient corresponding to the audio amplitude is determined, and the The amplitude adjustment coefficient is divided into a preset number of sub-amplitude adjustment coefficients, and the audio amplitude is adjusted according to the sub-amplitude adjustment coefficients. This solution improves the volume adjustment efficiency and reduces the power consumption of the terminal equipment.

In a possible embodiment, the adjustment coefficient determination module 103 is specifically configured to:

When it is detected that the amplitude adjustment coefficients corresponding to different audio amplitudes meet the preset conditions, the amplitude adjustment coefficients are divided into a preset number of sub-amplitude adjustment coefficients, and the sub-amplitude adjustment coefficients are divided linearly or nonlinearly according to the amplitude adjustment coefficients get.

In a possible embodiment, the adjustment module 104 is specifically configured to:

Each frame of the audio amplitude is adjusted step by step according to the sub-amplitude adjustment coefficient.

In a possible embodiment, the adjustment coefficient determination module 103 is specifically configured to:

A corresponding amplitude adjustment coefficient is determined according to the magnitude of the audio amplitude of the audio information.

In a possible embodiment, the adjustment coefficient determination module 103 is specifically configured to:

An amplitude adjustment coefficient corresponding to the audio amplitude is determined according to the magnitude of the audio amplitude.

In a possible embodiment, the adjustment coefficient determination module 103 is specifically configured to:

An amplitude adjustment coefficient corresponding to the audio amplitude is determined according to the magnitude of the audio amplitude and volume information of the terminal device, where the volume information includes volume value information, volume increase information, or volume decrease information.

In a possible embodiment, the adjustment coefficient determining module 103 is further configured to:

After determining the amplitude adjustment coefficient corresponding to the audio amplitude, adjust the amplitude adjustment coefficient according to the impedance value of the playback device of the terminal device and/or the noise value of the environment;

The adjusted amplitude adjustment coefficient is divided into a preset number of sub-amplitude adjustment coefficients.

This embodiment provides a terminal device on the basis of the foregoing embodiments. FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention. As shown in FIG. 7 , the terminal device 200 includes: a memory 201, Processor (Central Processing Unit, CPU) 202, peripheral interface 203, RF (Radio Frequency, radio frequency) circuit 205, audio circuit 206, speaker 211, power management chip 208, input/output (I/O) subsystem 209, Touch screen 212 , other input/control devices 210 , and external ports 204 , these components communicate through one or more communication buses or signal lines 207 .

It should be understood that the illustrated terminal device 200 is only an example of a terminal device, and the terminal device 200 may have more or fewer components than those shown in the figure, and two or more components may be combined, Or can have a different component configuration. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

The following describes in detail the terminal device used for the permission management of multiple applications provided by this embodiment, and the terminal device takes a smart phone as an example.

Memory 201, the memory 201 can be accessed by the CPU 202, the peripheral interface 203, etc., the memory 201 can include a high-speed random access memory, and can also include a non-volatile memory, such as one or more disk storage devices, flash memory devices , or other volatile solid-state storage devices.

Peripheral interface 203 , which can connect the input and output peripherals of the device to CPU 202 and memory 201 .

The I/O subsystem 209 , the I/O subsystem 209 can connect the input and output peripherals on the device, such as the touch screen 212 and other input/control devices 210 , to the peripheral interface 203 . I/O subsystem 209 may include a display controller 2091 and one or more input controllers 2092 for controlling other input/control devices 210 . Among them, one or more input controllers 2092 receive electrical signals from or send electrical signals to other input/control devices 210, which may include physical buttons (push buttons, rocker buttons, etc.) ), dials, slide switches, joysticks, click wheels. It should be noted that the input controller 2092 can be connected with any of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.

A touch screen 212, the touch screen 212 is an input interface and an output interface between the user terminal and the user, and displays visual output to the user. The visual output may include graphics, text, icons, videos, and the like.

The display controller 2091 in the I/O subsystem 209 receives electrical signals from the touch screen 212 or sends electrical signals to the touch screen 212 . The touch screen 212 detects the contact on the touch screen, and the display controller 2091 converts the detected contact into an interaction with the user interface object displayed on the touch screen 212, that is, realizes human-computer interaction, and the user interface object displayed on the touch screen 212 can be a running Icons for games, icons for networking to appropriate networks, etc. It is worth noting that the device may also include an optical mouse, which is a touch-sensitive surface that does not display visual output, or that is an extension of a touch-sensitive surface formed by a touch screen.

The RF circuit 205 is mainly used to establish communication between the mobile phone and the wireless network (that is, the network side), and realize data reception and transmission between the mobile phone and the wireless network. Such as sending and receiving short messages, e-mails, etc. Specifically, the RF circuit 205 receives and sends an RF signal, which is also called an electromagnetic signal, and the RF circuit 205 converts the electrical signal into an electromagnetic signal or converts the electromagnetic signal into an electrical signal, and communicates with the communication network and other devices through the electromagnetic signal to communicate. RF circuitry 205 may include known circuitry for performing these functions including, but not limited to, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC ( COder-DECoder, Codec) Chipset, Subscriber Identity Module (Subscriber Identity Module, SIM) and so on.

The audio circuit 206 is mainly used to receive audio data from the peripheral interface 203 , convert the audio data into electrical signals, and send the electrical signals to the speaker 211 .

The speaker 211 is used to restore the voice signal received by the mobile phone from the wireless network through the RF circuit 205 into sound and play the sound to the user.

The power management chip 208 is used for power supply and power management for the hardware connected to the CPU 202 , the I/O subsystem and the peripheral interface.

The device for adjusting the volume of a terminal device and the terminal device provided in the above embodiments can execute the method for adjusting the volume of a terminal device provided in any embodiment of the present invention, and have corresponding functional modules and beneficial effects for executing the method. For technical details not exhaustively described in the foregoing embodiments, reference may be made to the method for adjusting the volume of a terminal device provided in any embodiment of the present invention.

An embodiment of the present invention also provides a storage medium containing executable instructions of a terminal device, the executable instructions of the terminal device are used to execute a volume adjustment method when executed by a processor of the terminal device, and the method includes:

When it is detected that the terminal device is playing the audio source, the audio information of the audio source is obtained;

determining the corresponding audio amplitude according to the audio information;

Determine an amplitude adjustment coefficient corresponding to the audio amplitude, divide the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients, and adjust the audio amplitude according to the sub-amplitude adjustment coefficients.

In a possible embodiment, the dividing the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients includes:

When it is detected that the amplitude adjustment coefficients corresponding to different audio amplitudes meet the preset conditions, the amplitude adjustment coefficients are divided into a preset number of sub-amplitude adjustment coefficients, and the sub-amplitude adjustment coefficients are divided linearly or nonlinearly according to the amplitude adjustment coefficients get.

In a possible embodiment, the adjusting the audio amplitude according to the sub-amplitude adjustment coefficient includes:

Each frame of the audio amplitude is adjusted step by step according to the sub-amplitude adjustment coefficient.

In a possible embodiment, the determining the amplitude adjustment coefficient corresponding to the audio amplitude includes:

A corresponding amplitude adjustment coefficient is determined according to the magnitude of the audio amplitude of the audio information.

In a possible embodiment, the determining the amplitude adjustment coefficient corresponding to the audio amplitude includes:

An amplitude adjustment coefficient corresponding to the audio amplitude is determined according to the magnitude of the audio amplitude.

In a possible embodiment, the determining the amplitude adjustment coefficient corresponding to the audio amplitude includes:

An amplitude adjustment coefficient corresponding to the audio amplitude is determined according to the magnitude of the audio amplitude and volume information of the terminal device, where the volume information includes volume value information, volume increase information, or volume decrease information.

In a possible embodiment, after determining the amplitude adjustment coefficient corresponding to the audio amplitude, it further includes:

Adjusting the amplitude adjustment coefficient according to the impedance value of the playback device of the terminal equipment and/or the noise value of the environment;

Correspondingly, the division of the amplitude adjustment coefficient into a preset number of sub-amplitude adjustment coefficients includes:

The adjusted amplitude adjustment coefficient is divided into a preset number of sub-amplitude adjustment coefficients.

storage medium - any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media such as CD-ROMs, floppy disks or tape drives; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc. ; non-volatile memory, such as flash memory, magnetic media (eg hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. Also, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network such as the Internet. The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems connected by a network. The storage medium may store program instructions (eg embodied as computer programs) executable by one or more processors.

Of course, a storage medium containing computer-executable instructions provided by an embodiment of the present invention, the computer-executable instructions are not limited to the operation of the volume adjustment method as described above, and the volume adjustment method provided by any embodiment of the present invention can also be executed. Related operations in .

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (10)

1. A kind of 1. volume adjusting method, it is characterised in that including：

   When detecting that terminal device carries out source of sound broadcasting, the audio-frequency information of the source of sound is obtained；

   According to audio amplitude corresponding to audio-frequency information determination；

   It is determined that with the audio amplitude corresponding to amplitude regulation coefficient, the amplitude regulation coefficient is divided into the son of preset number Amplitude regulation coefficient, the audio amplitude is adjusted according to the sub- amplitude regulation coefficient.
2. 2. according to the method for claim 1, it is characterised in that described that the amplitude regulation coefficient is divided into preset number Sub- amplitude regulation coefficient include：

   When detecting that amplitude regulation coefficient meets preparatory condition corresponding to different audio amplitudes, the amplitude regulation coefficient is divided For the sub- amplitude regulation coefficient of preset number, the sub- amplitude regulation coefficient according to the amplitude regulation coefficient linearly or nonlinearly Division obtains.
3. 3. according to the method for claim 2, it is characterised in that it is described according to the sub- amplitude regulation coefficient to the audio Amplitude be adjusted including：

   Each frame of the audio amplitude is adjusted step by step according to the sub- amplitude regulation coefficient.
4. 4. according to the method for claim 3, it is characterised in that amplitude adjustment corresponding to the determination and the audio amplitude Coefficient includes：

   According to amplitude regulation coefficient corresponding to the size determination of the audio amplitude of the audio-frequency information.
5. 5. according to the method for claim 3, it is characterised in that amplitude adjustment corresponding to the determination and the audio amplitude Coefficient includes：

   Amplitude regulation coefficient corresponding to size determination and the audio amplitude according to the audio amplitude.
6. 6. according to the method for claim 3, it is characterised in that amplitude adjustment corresponding to the determination and the audio amplitude Coefficient includes：

   Adjusted according to amplitude corresponding to the size and the information volume determination of terminal device and the audio amplitude of the audio amplitude Integral coefficient, the information volume include volume value information, volume increase information or volume and reduce information.
7. 7. according to the method any one of claim 1-6, it is characterised in that it is determined that with the audio amplitude corresponding to After amplitude regulation coefficient, in addition to：

   The impedance value of device is played according to terminal device and/or the noise figure of local environment is adjusted to the amplitude regulation coefficient It is whole；

   Accordingly, the sub- amplitude regulation coefficient that the amplitude regulation coefficient is divided into preset number includes：

   Amplitude regulation coefficient after adjustment is divided into the sub- amplitude regulation coefficient of preset number.
8. A kind of 8. volume adjustment device, it is characterised in that including：

   Acquisition module, for when detecting that terminal device carries out source of sound broadcasting, obtaining the audio-frequency information of the source of sound；

   Amplitude determination module, for according to audio amplitude corresponding to audio-frequency information determination；

   Regulation coefficient determining module, for amplitude regulation coefficient corresponding to determination and the audio amplitude, the amplitude is adjusted Coefficient is divided into the sub- amplitude regulation coefficient of preset number；

   Adjustment module, for being adjusted according to the sub- amplitude regulation coefficient to the audio amplitude.
9. 9. a kind of terminal device, including：Processor, memory and storage are on a memory and the meter that can run on a processor Calculation machine program, it is characterised in that realized described in the computing device during computer program such as any one of claim 1-7 institutes The volume adjusting method stated.
10. A kind of 10. storage medium for including terminal device executable instruction, it is characterised in that the terminal device executable instruction As volume adjusting method during terminal device computing device for execution as any one of claim 1-7.