CN107526570B - Volume adjusting method and 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 the corresponding amplitude according to the audio information; determining an amplitude adjusting coefficient according to the amplitude and the obtained current volume value of the terminal equipment; and adjusting the amplitude of the sound source according to the amplitude adjustment coefficient. 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 device and storage medium

technical field

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

Background technique

With the increasing popularity of terminal devices, 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, and play games. When the terminal device is playing audio and video, the adjustment of the volume is defective and needs to be improved.

SUMMARY OF THE INVENTION

The present invention provides a volume adjustment method, device, terminal equipment and storage medium, which improve the volume adjustment efficiency and reduce 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 plays an audio source, obtain the audio information of the audio source;

determining the corresponding amplitude according to the audio information;

Determine the amplitude adjustment coefficient according to the amplitude and the acquired current volume value of the terminal device;

The amplitude of the sound source is adjusted according to the amplitude adjustment coefficient.

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

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

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

an adjustment coefficient determination module, which determines an amplitude adjustment coefficient according to the amplitude and the acquired current volume value of the terminal device;

An adjustment module, configured to adjust the amplitude of the sound source according to the amplitude adjustment coefficient.

In a third aspect, an embodiment of the present invention further provides a terminal device, including: a processor, a memory, and a computer program stored in the memory and running on the processor, where the processor implements the following when executing the computer program. The volume adjustment method according to the embodiment of the present invention.

In a fourth aspect, an embodiment of the present invention further provides a storage medium containing executable instructions of a terminal device, where the executable instructions of the terminal device are used to perform the volume adjustment according to the embodiment of the present invention when executed by a processor of the terminal device method.

According to the technical solution provided by the embodiment of the present invention, when it is detected that a terminal device is playing an audio source, the audio information of the audio source is acquired; the corresponding amplitude is determined according to the audio information; The volume value of the sound source determines an amplitude adjustment coefficient; the amplitude of the sound source is adjusted according to the amplitude adjustment coefficient. This solution improves the volume adjustment efficiency and reduces the power consumption of the terminal device.

Description of drawings

Other features, 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;

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

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

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

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

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 according to an embodiment of the present invention.

Detailed ways

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 herein are used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

1 is a flowchart of a volume adjustment method provided by an embodiment of the present invention. This embodiment can be applied to the case where a terminal device adjusts the volume when playing a sound source, and the method can be executed by the terminal device provided by the embodiment of the present invention. The volume adjustment device of the terminal device can be implemented by software and/or hardware. As shown in FIG. 1 , the specific solution provided by this embodiment is as follows:

Step S101 , acquiring audio information of the audio source when it is detected that the terminal device plays the audio source.

The terminal device can play the audio source through the installed third-party application 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 acquired audio source file may be a multicast stream received through the network, or may be an audio and video file stored locally by the terminal device; after acquiring the audio source file, load it into the memory buffer; The audio source file in the memory buffer is decoded. Before 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, the audio decoding The device is mainly used to read the audio data in the memory buffer, obtain the 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, it is determined that the terminal device starts to play the audio source when a sound source playback event is detected to be triggered, wherein the trigger event may be detected that the play button displayed on the touch screen is pressed, or detected that the terminal device is pressed. When the playback device such as the speaker starts to play the sound, make sure that the terminal device plays the sound source.

When it is detected that the terminal device plays an audio source, the audio information of the audio 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 playing audio source may also be acquired, and the audio information corresponding to the audio source is 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 obtained through the android.media.MediaRecorder class or the android.media.AudioRecord class.

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

Amplitude refers to the maximum distance that the object deviates from the 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 amplitude information within a preset time period T, wherein the amplitude information can be composed of multiple amplitude values, and according to the obtained multiple amplitude values The value can correspondingly determine the amplitude curve of the audio source played within the preset time period T. In another embodiment, taking the Android system as an example, the corresponding amplitude can be obtained after acquiring the audio information of the audio source through the android.media.MediaRecorder class or the android.media.AudioRecord class. In another embodiment, when the audio information obtained in step S101 is the original file corresponding to the audio source, the corresponding amplitude can be obtained by parsing the original file.

In one embodiment, when detecting the playing of the audio source, the amplitude is determined every preset time (eg, 1s, 3s, or 10s), or in real time, the amplitude of each frame of audio information is determined. Specifically, the acquiring the audio information of the audio source includes: acquiring audio frame information of the audio source; correspondingly, determining the amplitude of the audio source according to the audio information includes: determining, according to the audio frame information, each time the audio source is Amplitude for one frame. Exemplarily, when it is detected that the audio source is playing, the audio frame sequence is obtained by parsing the audio source file, and the corresponding amplitude is determined according to each frame of the audio frame sequence.

Step S103: Determine an amplitude adjustment coefficient according to the amplitude and the acquired current volume value of the terminal device, and adjust the amplitude of the sound source according to the amplitude adjustment coefficient.

In one embodiment, a fixed amplitude adjustment coefficient may be determined according to the determined amplitude and the acquired current volume value of the terminal device, or different amplitude adjustment coefficients may be determined, and then allocated according to the amplitude of the specific audio source. Amplitude adjustment is performed, wherein the terminal device is divided into 18 adjustable levels from mute to maximum volume, and each level corresponds to a volume value. In the process of adjusting the amplitude of the sound source, the data representing the amplitude information in the obtained audio data can be modified by analyzing the sound source file, and then encapsulated after the modification. The amplitude of the audio source has been correspondingly increased during playback; it is also possible that, during the decoding process of the audio source playback, the amplitude data is obtained by analyzing the obtained digital audio signal, and the amplitude data is multiplied by the corresponding adjustment coefficient to change the amplitude size, and then adjust the volume of the audio source. As a result, the volume of the audio source is adjusted without changing the original volume of the terminal device system. The adjustment process can be performed before the audio source file enters the buffer to reduce the playback load, or it can be aimed at the buffer in the buffer. The content of the audio source is adjusted to improve the adjustment efficiency.

In another embodiment, the amplitude of each frame of the audio source is adjusted. Specifically, in the adjustment process, different amplitude adjustment coefficients are allocated for different amplitudes of each frame to perform corresponding adjustment. Illustratively, several possible correspondences are given as shown in the following table:

Table 1

amplitude Volume value (level) Adjustment factor greater than -3db 5 0.5 Less than -3db Greater than -10db 15 0.8 less than -20db 18 2

As shown in Table 1, when the amplitude of the audio frame is greater than -3db and the volume value of the current terminal device is low, the corresponding adjustment factor is set to 0.5 to reduce the high-amplitude part of the audio source; when the amplitude of the audio frame is less than -3db and greater than -10db , and when the volume value of the current terminal device is moderate, the corresponding adjustment factor is set to 0.8 to fine-tune the amplitude of the audio source located in the medium-amplitude region; when the amplitude of the audio frame is less than -20db and the current terminal device volume value is high, the corresponding audio source will be adjusted accordingly. The lower amplitude part of the .

It can be seen from the above that when it is detected that the terminal device is playing the sound source, the amplitude of the sound source and the current terminal volume are analyzed to obtain the corresponding amplitude adjustment coefficient, and the amplitude of the sound source is adjusted, so that the terminal volume is not changed when the sound source is played. The automatic adjustment of the volume is completed under the premise of the premise, so that the amplitude of the sound source is more reasonable, and the adjustment of the volume is more automatic.

2 is a flowchart of another volume adjustment method provided by an embodiment of the present invention. Optionally, the acquiring audio information of the audio source and determining the corresponding amplitude according to the audio information includes: acquiring the audio information of the audio source. For audio information of a preset length, the corresponding maximum amplitude and average amplitude are determined according to the audio information; correspondingly, the determination of the amplitude adjustment coefficient according to the amplitude and the acquired current volume value of the terminal device includes: according to the The maximum amplitude, the average amplitude and the volume value determine an amplitude adjustment coefficient. As shown in Figure 2, the technical solution provided by this embodiment is as follows:

Step S201 , when it is detected that the terminal device plays an audio source, acquire audio information of a preset length of the audio source.

When it is detected that the terminal device is playing an audio source, audio information of a preset length of the audio 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, where the preset length may be 3s, 5s, or 10s, or the like. In another embodiment, the original file of the currently playing audio source may also be acquired, and the audio information of the preset length corresponding to the audio source is determined by analyzing the original file.

Step S202: Determine the corresponding maximum amplitude and average amplitude according to the audio information.

In one embodiment, the digital audio signal decoded by the audio decoder can be sampled to obtain amplitude information, wherein the amplitude information can be composed of multiple amplitude values. Exemplarily, taking 3s as an example, in the audio source played within the 3s duration, corresponding to multiple amplitude values in the obtained audio information, each obtained amplitude value is recorded, and the maximum amplitude and the average amplitude of each amplitude are determined.

In another embodiment, when detecting the playing of the audio source, the audio information of the preset length is determined every preset time (eg 1s, 3s or 10s), or the amplitude of each frame of the audio information is determined in real time . Specifically, the acquiring the audio information of the audio source includes: the acquiring the audio information of the preset length of the audio source includes: acquiring the audio frame information of the preset length of the audio source; correspondingly, determining the preset length The maximum amplitude and the average amplitude in the audio information of the length include: determining the maximum amplitude and the average amplitude in the audio information of the preset length according to the audio frame information. Exemplarily, when it is detected that the audio source is playing, the audio source file is parsed to obtain an audio frame sequence, and the corresponding amplitude is determined for each frame under the audio information of the preset length, and then the maximum amplitude and the average amplitude are determined.

Step S203: Determine an amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the acquired current volume value of the terminal device.

In a possible embodiment, the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value includes: if the difference between the maximum amplitude and the average amplitude satisfies a preset condition, then An amplitude adjustment coefficient is determined according to the maximum amplitude, the average amplitude and the volume value. Exemplarily, when the difference between the maximum amplitude and the average amplitude is large (eg, 0.2db), it is not avoided that the volume of a sound source with a large amplitude is high, and the high amplitude is adjusted to reduce the volume. Optionally, if the difference between the maximum amplitude and the average amplitude does not meet the preset condition, that is, the difference is not large, the amplitude of the sound source is not adjusted.

In one embodiment, if the difference between the maximum amplitude and the average amplitude satisfies a preset condition, a first amplitude adjustment coefficient may be determined according to the difference between the maximum amplitude and the average amplitude and the volume value, Correspondingly, the amplitude of the audio source greater than the first preset threshold may be adjusted according to the first amplitude adjustment coefficient. Exemplarily, the relationship between determining the first amplitude adjustment coefficient according to the difference between the maximum amplitude and the average amplitude and the current volume value of the terminal device is as follows:

Table 2

Amplitude difference volume value Adjustment factor Greater than 0.4db 8 0.3 Greater than 0.3db and less than 0.4db 10 0.7 Greater than 0.2db and less than 0.3db 15 0.9

Wherein, the first preset amplitude threshold value may be -2db, that is, the amplitude magnitude greater than the first amplitude threshold value is multiplied by a corresponding adjustment coefficient to perform amplitude attenuation and reduce volume. Thereby, it is realized to reasonably attenuate the part of the sound source with a large amplitude to avoid abrupt hearing, and the playback effect of the sound source is improved.

Step S204: Adjust the amplitude of the sound source according to the amplitude adjustment coefficient.

It can be seen from the above that when it is detected that the difference between the maximum amplitude and the average amplitude in the audio information of the preset length meets the preset condition, the amplitude adjustment coefficient is allocated according to the size of the difference and the current volume of the terminal device, and at the same time, The amplitude adjustment coefficient adjusts the amplitude of the sound source that meets the conditions, improves the volume adjustment efficiency, and avoids the problem of poor adjustment effect caused by synchronous adjustment of the irrelevant amplitude in the sound source.

3 is a flowchart of another volume adjustment method provided by an embodiment of the present invention. Optionally, when the first amplitude adjustment coefficient is determined according to the difference between the maximum amplitude and the average amplitude and the volume value Afterwards, the method further includes: determining a second amplitude adjustment coefficient according to the average amplitude; correspondingly, the adjusting the amplitude of the sound source according to the amplitude adjustment coefficient further includes: adjusting the sound source according to the second amplitude adjustment coefficient. The amplitude of the audio source that is less than a second preset threshold and greater than a third preset threshold is adjusted, and the second preset threshold is less than the first preset threshold. As shown in Figure 3, it specifically includes:

Step S301 , when it is detected that the terminal device plays the audio source, acquire audio information of the preset length of the audio source.

Step S302: Determine the maximum amplitude and the average amplitude in the audio information, and acquire the current volume value of the terminal device.

Step S303: Determine a first amplitude adjustment coefficient according to the difference between the maximum amplitude and the average amplitude and the volume value, and according to the first amplitude adjustment coefficient, adjust the amplitude of the sound source greater than the first preset threshold. Make adjustments.

Step S304: Determine a second amplitude adjustment coefficient according to the average amplitude, and adjust the amplitude of the audio source that is smaller than the second preset threshold and greater than the third preset threshold according to the second amplitude adjustment coefficient.

Wherein, the second preset threshold is smaller than the first preset threshold. In one embodiment, the second amplitude adjustment coefficient is determined according to the average amplitude. Exemplarily, the corresponding relationship between the average amplitude and the second amplitude adjustment coefficient is as follows:

table 3

Average amplitude Adjustment factor -25db 1.2 -20db 1.5 -15db 1.8

Exemplarily, the second preset threshold may be -30db, and the third preset amplitude threshold may be -50db. When the determined sound source amplitude is less than the second preset threshold and greater than the third preset threshold, the amplitude that satisfies the condition is adjusted according to the adjustment coefficient corresponding to Table 3.

It can be seen from the above that the corresponding adjustment coefficient is determined according to the size of the average amplitude of the sound source. The larger the average amplitude, the higher the corresponding adjustment coefficient. The adjustment coefficient is adjusted to increase the volume of the lower volume part of the sound source, so that the playback effect of the sound source is better during the playback process, avoiding the user's manual volume adjustment, and improving the volume adjustment efficiency.

4 is a flowchart of another volume adjustment method provided by an embodiment of the present invention. Optionally, before the determination of the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value, the method further includes: Determine the impedance value of the playback device of the terminal device; correspondingly, determine the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value: according to the impedance value, the maximum amplitude, the average amplitude The amplitude and the volume value determine the amplitude adjustment coefficient. Specifically as shown in the figure:

Step S401 , when it is detected that the terminal device plays an audio source, acquire audio information of a preset length of the audio source.

Step S402: Determine the maximum amplitude and the average amplitude in the audio information, and obtain the current volume value of the terminal device.

Step S403: Determine the impedance value of the playback device of the terminal device.

In one embodiment, the impedance value of a playback device (eg, a speaker) installed in the terminal device can be detected by a power amplifier chip, and the impedance of the playback device can also be detected by a physical method.

Step S404: Determine a first amplitude adjustment coefficient according to the impedance value, the maximum amplitude, the average amplitude and the volume value.

In one embodiment, based on the maximum amplitude, average amplitude and current volume value in the above embodiment, the first amplitude adjustment coefficient is further determined in combination with the impedance value of the playback device of the terminal device determined in step S403. Exemplarily, the larger the impedance value is, the larger the jointly determined first amplitude adjustment coefficient is. Specifically, assuming that the nominal impedance value of the playback device is x, and the impedance value obtained through detection is 1.2x, the corresponding first amplitude adjustment coefficient may be an amplitude adjustment coefficient determined only by the maximum amplitude, average amplitude and volume value. 1.2 times as the final amplitude adjustment factor.

Step S405 , according to the first amplitude adjustment coefficient, adjust the amplitude of the audio source that is greater than a first preset threshold.

Step S406 , determining a second amplitude adjustment coefficient according to the average amplitude, and adjusting the amplitude of the audio source smaller than the second preset threshold and greater than the third preset threshold according to the second amplitude adjustment coefficient.

It can be seen from the above that in the process of adjusting the amplitude of the audio source, the impedance value of the playback device is introduced as one of the parameters for determining the amplitude adjustment coefficient, so as to avoid the impedance value of the playback device becoming higher and higher with the increase of the playback time, which will affect the normal playback process. In order to solve the problem of the influence of the volume in the middle, the adjusted volume is better in line with the user's needs, and the volume adjustment effect is further improved.

5 is a flowchart of another volume adjustment method provided by an embodiment of the present invention. Optionally, before the determination of the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value, the method further includes: determining the noise value of the playback device of the terminal device; correspondingly, the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value includes: according to the noise value, the maximum amplitude, the The average amplitude and the volume value determine the amplitude adjustment coefficient. Specifically as shown in the figure:

Step S501 , when it is detected that the terminal device plays an audio source, acquire audio information of a preset length of the audio source.

Step S502: Determine the maximum amplitude and the average amplitude in the audio information, and acquire the current volume value of the terminal device.

Step S503: Determine the noise value of the environment where the terminal device is currently located.

In one embodiment, the noise of the current environment may be collected through a microphone installed on the terminal device to determine the corresponding noise value.

Step S504: Determine a first amplitude adjustment coefficient according to the noise value, the maximum amplitude, the average amplitude and the volume value.

In one embodiment, based on the maximum amplitude, average amplitude and volume value in the above embodiment, the first amplitude adjustment coefficient is further determined in combination with the noise value of the current environment of the terminal device determined in step S503. Exemplarily, the larger the noise value is, the larger the jointly determined first amplitude adjustment coefficient is. Specifically, assuming that the noise value of the terminal device in a quiet environment is y, and when the terminal device is in an outdoor or noisy environment, the determined noise value is 1.2y, then the corresponding first amplitude adjustment coefficient may be determined only by the maximum amplitude, average The amplitude adjustment coefficient determined by the amplitude and volume values is 1.2 times as the final amplitude adjustment coefficient. It should be noted that the impedance value, the noise value, the maximum amplitude and the average amplitude of the sound source may also be used to jointly determine the amplitude adjustment coefficient of the sound source.

Step S505 , according to the first amplitude adjustment coefficient, adjust the amplitude of the audio source that is greater than a first preset threshold.

Step S506 , determining a second amplitude adjustment coefficient according to the average amplitude, and adjusting the amplitude of the audio source smaller than the second preset threshold and greater than the third preset threshold according to the second amplitude adjustment coefficient.

It can be seen from the above that in the process of adjusting the amplitude of the sound source, the influence of noise on the volume of the terminal device 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 can better meet the needs of users. , which further improves 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-mentioned embodiment, and has functional modules and beneficial effects corresponding to the execution method. As shown in FIG. 6 , the apparatus specifically includes: an acquisition module 101 , an amplitude determination module 102 , an adjustment coefficient determination module 103 and an adjustment module 104 .

Wherein, the acquiring module 101 is configured to acquire audio information of the audio source when it is detected that the terminal device plays the audio source.

The terminal device can play the audio source through the installed third-party application 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 acquired audio source file may be a multicast stream received through the network, or may be an audio and video file stored locally by the terminal device; after acquiring the audio source file, load it into the memory buffer; The audio source file in the memory buffer is decoded. Before 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, the audio decoding The device is mainly used to read the audio data in the memory buffer, obtain the 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, it is determined that the terminal device starts to play the audio source when a sound source playback event is detected to be triggered, wherein the trigger event may be detected that the play button displayed on the touch screen is pressed, or detected that the terminal device is pressed. When the playback device such as the speaker starts to play the sound, make sure that the terminal device plays the sound source.

When it is detected that the terminal device plays an audio source, the audio information of the audio 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 playing audio source may also be acquired, and the audio information corresponding to the audio source is 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 obtained through the android.media.MediaRecorder class or the android.media.AudioRecord class

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

Amplitude refers to the maximum distance that the object deviates from the 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 amplitude information within a preset time period T, wherein the amplitude information can be composed of multiple amplitude values, and according to the obtained multiple amplitude values The value can correspondingly determine the amplitude curve of the audio source played within the preset time period T. In another embodiment, taking the Android system as an example, the corresponding amplitude can be obtained after acquiring the audio information of the audio source through the android.media.MediaRecorder class or the android.media.AudioRecord class. In another embodiment, when the audio information obtained in step S101 is the original file corresponding to the audio source, the corresponding amplitude can be obtained by parsing the original file.

In one embodiment, when detecting the playing of the audio source, the amplitude is determined every preset time (eg, 1s, 3s, or 10s), or in real time, the amplitude of each frame of audio information is determined. Specifically, the acquiring the audio information of the audio source includes: acquiring audio frame information of the audio source; correspondingly, determining the amplitude of the audio source according to the audio information includes: determining, according to the audio frame information, each time the audio source is Amplitude for one frame. Exemplarily, when it is detected that the audio source is playing, the audio frame sequence is obtained by parsing the audio source file, and the corresponding amplitude is determined according to each frame of the audio frame sequence.

The adjustment coefficient determination module 103 determines the amplitude adjustment coefficient according to the amplitude and the acquired current volume value of the terminal device.

The adjustment module 104 is configured to adjust the amplitude of the sound source according to the amplitude adjustment coefficient.

In one embodiment, a fixed amplitude adjustment coefficient may be determined according to the determined amplitude and the acquired current volume value of the terminal device, or different amplitude adjustment coefficients may be determined, and then allocated according to the amplitude of the specific audio source. Amplitude adjustment is performed, wherein the terminal device is divided into 18 adjustable levels from mute to maximum volume, and each level corresponds to a volume value. In the process of adjusting the amplitude of the sound source, the data representing the amplitude information in the obtained audio data can be modified by analyzing the sound source file, and then encapsulated after the modification. The amplitude of the audio source has been correspondingly increased during playback; it is also possible that, during the decoding process of the audio source playback, the amplitude data is obtained by analyzing the obtained digital audio signal, and the amplitude data is multiplied by the corresponding adjustment coefficient to change the amplitude size, and then adjust the volume of the audio source. As a result, the volume of the audio source is adjusted without changing the original volume of the terminal device system. The adjustment process can be performed before the audio source file enters the buffer to reduce the playback load, or it can be aimed at the buffer 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 an audio source, the audio information of the audio source is acquired; the corresponding amplitude is determined according to the audio information; The volume value determines an amplitude adjustment coefficient; the amplitude of the sound source is adjusted according to the amplitude adjustment coefficient. This solution improves the volume adjustment efficiency and reduces the power consumption of the terminal device.

In a possible embodiment, the amplitude determination module 102 is specifically configured to:

Acquire the audio information of the preset length of the audio source, and determine the corresponding maximum amplitude and average amplitude according to the audio information;

The adjustment coefficient determination module 103 is specifically used for:

The amplitude adjustment coefficient is determined according to the maximum amplitude, the average amplitude and the acquired current volume value of the terminal device.

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

If the difference between the maximum amplitude and the average amplitude satisfies a preset condition, an amplitude adjustment coefficient is determined according to the maximum amplitude, the average amplitude and the volume value.

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

determining a first amplitude adjustment coefficient according to the difference between the maximum amplitude and the average amplitude and the volume value;

The adjustment module 104 is specifically used for:

According to the first amplitude adjustment coefficient, the amplitude of the audio source greater than the first preset threshold is adjusted.

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

After the first amplitude adjustment coefficient is determined according to the difference between the maximum amplitude and the average amplitude and the volume value, a second amplitude adjustment coefficient is determined according to the average amplitude;

The adjustment module 104 is also used for:

According to the second amplitude adjustment coefficient, the amplitude of the audio source that is smaller than a second preset threshold and greater than a third preset threshold is adjusted, and the second preset threshold is smaller than the first preset threshold.

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

Before determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value, determine the impedance value of the playback device of the terminal device; according to the impedance value, the maximum amplitude and the average amplitude and the volume value to determine the amplitude adjustment coefficient.

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

Before determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value, determine the noise value of the environment where the terminal device is currently located; according to the noise value, the maximum amplitude, the The average amplitude and the volume value determine the amplitude adjustment coefficient.

This embodiment provides a terminal device on the basis of the above-mentioned 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, A processor (Central Processing Unit, CPU) 202, a peripheral interface 203, an RF (Radio Frequency, radio frequency) circuit 205, an audio circuit 206, a speaker 211, a power management chip 208, an input/output (I/O) subsystem 209, The touch screen 212 , other input/control devices 210 , and external ports 204 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 that the terminal device 200 may have more or less components than those shown in the figure, two or more components may be combined, Or can have different component configurations. 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 is a detailed description of the terminal device provided in this embodiment for permission management of multiple open applications, where the terminal device takes a smart phone as an example.

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

A peripheral interface 203 that can connect the input and output peripherals of the device to the CPU 202 and the memory 201 .

I/O subsystem 209 , which can connect input and output peripherals on the device, such as touch screen 212 and other input/control devices 210 , to peripheral interface 203 . The I/O subsystem 209 may include a display controller 2091 and one or more input controllers 2092 for controlling other input/control devices 210 . Wherein, 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. ), dial pad, slide switch, joystick, click wheel. Notably, the input controller 2092 can be connected to any of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.

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

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

The RF circuit 205 is mainly used to establish the communication between the mobile phone and the wireless network (ie, the network side), and realize the data reception and transmission between the mobile phone and the wireless network. Such as sending and receiving text messages, e-mails, etc. Specifically, the RF circuit 205 receives and transmits RF signals, also known as electromagnetic signals, the RF circuit 205 converts electrical signals into electromagnetic signals or converts electromagnetic signals into electrical signals, and communicates with communication networks and other devices through the electromagnetic signals to communicate. RF circuitry 205 may include known circuitry for performing these functions including, but not limited to, antenna systems, RF transceivers, one or more amplifiers, tuners, one or more oscillators, digital signal processors, CODECs ( COder-DECoder, codec) chip set, subscriber identity module (Subscriber Identity Module, SIM) and so on.

The audio circuit 206 is mainly used for receiving audio data from the peripheral interface 203 , converting the audio data into an electrical signal, and sending the electrical signal 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 to 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 volume adjustment apparatus and terminal device of the terminal device provided in the above embodiments can execute the volume adjustment method of the terminal device provided by any embodiment of the present invention, and have corresponding functional modules and beneficial effects for implementing the method. For technical details not described in detail in the foregoing embodiments, reference may be made to the volume adjustment method for a terminal device provided by any embodiment of the present invention.

An embodiment of the present invention further provides a storage medium containing executable instructions of a terminal device, where 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 plays an audio source, obtain the audio information of the audio source;

determining the corresponding amplitude according to the audio information;

Determine the amplitude adjustment coefficient according to the amplitude and the acquired current volume value of the terminal device;

The amplitude of the sound source is adjusted according to the amplitude adjustment coefficient.

In a possible embodiment, the acquiring the audio information of the audio source, and determining the corresponding amplitude according to the audio information includes:

Acquire the audio information of the preset length of the audio source, and determine the corresponding maximum amplitude and average amplitude according to the audio information;

Correspondingly, the determining of the amplitude adjustment coefficient according to the amplitude and the acquired current volume value of the terminal device includes:

The amplitude adjustment coefficient is determined according to the maximum amplitude, the average amplitude and the acquired current volume value of the terminal device.

In a possible embodiment, the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value includes:

If the difference between the maximum amplitude and the average amplitude satisfies a preset condition, an amplitude adjustment coefficient is determined according to the maximum amplitude, the average amplitude and the volume value.

In a possible embodiment, the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value includes:

determining a first amplitude adjustment coefficient according to the difference between the maximum amplitude and the average amplitude and the volume value;

Correspondingly, the adjusting the amplitude of the sound source according to the amplitude adjustment coefficient includes:

According to the first amplitude adjustment coefficient, the amplitude of the audio source greater than the first preset threshold is adjusted.

In a possible embodiment, after the determining the first amplitude adjustment coefficient according to the difference between the maximum amplitude and the average amplitude and the volume value, the method further includes:

determining a second amplitude adjustment coefficient according to the average amplitude;

Correspondingly, the adjusting the amplitude of the sound source according to the amplitude adjustment coefficient further includes:

According to the second amplitude adjustment coefficient, the amplitude of the audio source that is smaller than a second preset threshold and greater than a third preset threshold is adjusted, and the second preset threshold is smaller than the first preset threshold.

In a possible embodiment, before the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value, the method further includes:

determining the impedance value of the playback device of the terminal equipment;

Correspondingly, the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value includes:

An amplitude adjustment coefficient is determined according to the impedance value, the maximum amplitude, the average amplitude, and the volume value.

In a possible embodiment, before the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value, the method further includes:

determining the noise value of the environment in which the terminal device is currently located;

Correspondingly, the determining the amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value includes:

An amplitude adjustment coefficient is determined according to the noise value, the maximum amplitude, the average amplitude, and the volume value.

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 devices; 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. In addition, the storage medium may be located in the first computer system in which the program is executed, or may be located in a second, different 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 (eg, in different computer systems connected by a network). The storage medium may store program instructions (eg, embodied as a computer program) 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 operations of the volume adjustment method described above, and can also execute the volume adjustment method provided by any embodiment of the present invention. 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 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. The scope is determined by the scope of the appended claims.

Claims (8)

1. A method of adjusting volume, comprising:

when detecting that terminal equipment plays a sound source, acquiring audio information of the sound source;

determining the corresponding amplitude according to the audio information;

determining an amplitude adjusting coefficient according to the amplitude and the obtained current volume value of the terminal equipment;

adjusting the amplitude of the sound source according to the amplitude adjustment coefficient;

analyzing a sound source file in the process of adjusting the amplitude of a sound source, modifying amplitude data in the obtained audio information, and packaging the audio file after modification is finished; or,

in the decoding process of audio playing, the amplitude data is obtained by analyzing the obtained audio information, and the amplitude data is multiplied by the corresponding regulating coefficient to change the amplitude;

wherein, the obtaining the audio information of the sound source and determining the corresponding amplitude according to the audio information includes:

acquiring audio information of the sound source with a preset length, and determining a corresponding maximum amplitude and an average amplitude according to the audio information;

correspondingly, the determining an amplitude adjustment coefficient according to the amplitude and the obtained current volume value of the terminal device includes:

determining an amplitude adjustment coefficient as a function of the maximum amplitude, the average amplitude, and the volume value;

wherein said determining an amplitude adjustment factor as a function of said maximum amplitude, said average amplitude and said volume value comprises:

and if the difference value of the maximum amplitude and the average amplitude meets a preset condition, determining an amplitude adjusting coefficient according to the maximum amplitude, the average amplitude and the volume value.

2. The method of claim 1, wherein said determining an amplitude adjustment factor as a function of said maximum amplitude, said average amplitude, and said volume value further comprises:

determining a first amplitude adjustment coefficient according to the difference value between the maximum amplitude and the average amplitude and the volume value;

correspondingly, the adjusting the amplitude of the sound source according to the amplitude adjusting coefficient includes:

and adjusting the amplitude of the sound source which is greater than a first preset threshold value according to the first amplitude adjusting coefficient.

3. The method of claim 2, wherein after said determining a first amplitude adjustment factor as a function of the difference between the maximum amplitude and the average amplitude and the volume value, further comprising:

determining a second amplitude adjustment coefficient according to the average amplitude;

correspondingly, the adjusting the amplitude of the sound source according to the amplitude adjusting coefficient further includes:

and adjusting the amplitude of the sound source which is smaller than a second preset threshold and larger than a third preset threshold according to the second amplitude adjustment coefficient, wherein the second preset threshold is smaller than the first preset threshold.

4. The method according to any of claims 1-3, further comprising, before said determining an amplitude adjustment coefficient from said maximum amplitude, said average amplitude and said volume value:

determining an impedance value of a playing device of the terminal equipment;

correspondingly, the determining an amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value comprises:

determining an amplitude adjustment factor as a function of the impedance value, the maximum amplitude, the average amplitude, and the volume value.

5. The method according to any of claims 1-3, further comprising, before said determining an amplitude adjustment coefficient from said maximum amplitude, said average amplitude and said volume value:

determining a noise value of the current environment of the terminal equipment;

correspondingly, the determining an amplitude adjustment coefficient according to the maximum amplitude, the average amplitude and the volume value comprises:

determining an amplitude adjustment factor as a function of the noise value, the maximum amplitude, the average amplitude and the volume value.

6. A volume adjustment device, comprising:

the acquisition module is used for acquiring audio information of a sound source when the terminal equipment is detected to play the sound source;

the amplitude determining module is used for determining the corresponding amplitude according to the audio information;

the adjusting coefficient determining module is used for determining an amplitude adjusting coefficient according to the amplitude and the obtained current volume value of the terminal equipment;

the adjusting module is used for adjusting the amplitude of the sound source according to the amplitude adjusting coefficient;

analyzing a sound source file in the process of adjusting the amplitude of a sound source, modifying amplitude data in the obtained audio information, and packaging the audio file after modification is finished; or,

in the decoding process of audio playing, the amplitude data is obtained by analyzing the obtained audio information, and the amplitude data is multiplied by the corresponding regulating coefficient to change the amplitude;

wherein the amplitude determination module is specifically configured to:

acquiring audio information of the sound source with a preset length, and determining a corresponding maximum amplitude and an average amplitude according to the audio information;

the adjustment coefficient determining module is specifically configured to:

determining an amplitude adjusting coefficient according to the maximum amplitude, the average amplitude and the obtained current volume value of the terminal equipment;

and if the difference value of the maximum amplitude and the average amplitude meets a preset condition, determining an amplitude adjusting coefficient according to the maximum amplitude, the average amplitude and the volume value.

7. A terminal device, comprising: processor, memory and computer program stored on the memory and executable on the processor, characterized in that the processor implements the volume adjustment method according to any one of claims 1-5 when executing the computer program.

8. A storage medium containing terminal device-executable instructions, which when executed by a terminal device processor, are configured to perform the volume adjustment method of any one of claims 1-5.

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