CN107681993A - A kind of method and mobile terminal for adjusting audio frequency parameter - Google Patents

Abstract

The present invention provides a method for adjusting audio parameters and a mobile terminal, the method comprising: detecting the remaining power of the mobile terminal; adjusting the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power , and adjusting the gain of the MBDRC module, wherein the adjusted filtering frequency of the audio high-pass filter is higher than the adjusted filtering frequency, and the filtering gain of the audio high-pass filter is lower than the adjusted filtering gain, The gain of the MBDRC module is higher than the gain before adjustment; the adjusted audio high-pass filter is used to filter the target audio signal, and the adjusted MBDRC module is used to perform dynamic range control on the target audio signal . In this way, the mobile terminal can save power without lowering the volume during audio playback, thereby reducing the impact of power saving on the audio playback effect of the mobile terminal.

Description

A method and mobile terminal for adjusting audio parameters

technical field

The invention relates to the field of communication technology, in particular to a method for adjusting audio parameters and a mobile terminal.

Background technique

With the rapid development of mobile terminals, mobile terminals have become an indispensable tool in people's lives, and their rich functions bring great convenience to all aspects of users' lives. Among them, the audio playback function is one of the most commonly used functions by the majority of users, and it is active in various scenes of life. Need to take advantage of the audio playback function. And the battery capacity of the battery of the existing mobile terminal is generally too small, so its power is difficult to maintain the audio playing state for a long time. For this reason, in order to obtain a longer usage time in the audio playing state, the user has to lower the volume of the mobile terminal to save power. At this time, due to the lowering of the volume, the audio playing effect of the mobile terminal also decreases. Therefore, if the existing mobile terminal wants to save power during audio playback, the volume must be lowered, resulting in poor audio playback effect of the mobile terminal.

Contents of the invention

Embodiments of the present invention provide a method for adjusting audio parameters and a mobile terminal to solve the problem that if the mobile terminal wants to save power during audio playback, the volume must be lowered, resulting in a poor audio playback effect of the mobile terminal.

In the first aspect, the embodiment of the present invention provides a method for adjusting audio parameters, including:

Detecting the remaining power of the mobile terminal;

Adjust the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjust the gain of the multi-band dynamic range control (Multi-Band Dynamic Range Control, MBDRC) module, wherein , the adjusted filtering frequency of the audio high-pass filter is higher than the adjusted filtering frequency, the filtering gain of the audio high-pass filter is lower than the adjusted filtering gain, and the gain of the MBDRC module is higher than the adjusted gain;

The adjusted audio high-pass filter is used to filter the target audio signal, and the adjusted MBDRC module is used to control the dynamic range of the target audio signal.

In the second aspect, the embodiment of the present invention also provides a mobile terminal, including:

A detection module, configured to detect the remaining power of the mobile terminal;

An adjustment module, configured to adjust the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjust the gain of the MBDRC module, wherein the audio high-pass filter is adjusted The filter frequency is higher than the filter frequency before adjustment, the filter gain of the audio high-pass filter is lower than the filter gain before adjustment, and the gain of the MBDRC module is higher than the gain before adjustment;

A processing module, configured to use the adjusted audio high-pass filter to filter the target audio signal, and use the adjusted MBDRC module to control the dynamic range of the target audio signal.

In the third aspect, the embodiment of the present invention also provides a mobile terminal, including: a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor executes the computer program When implementing the steps in the above method for adjusting audio parameters.

In a fourth aspect, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the above-mentioned method for adjusting audio parameters are implemented .

In the embodiment of the present invention, the remaining power of the mobile terminal is detected; according to the size of the remaining power, the filtering frequency and the filtering gain of the audio high-pass filter are adjusted, and the gain of the MBDRC module is adjusted, Wherein, the adjusted filtering frequency of the audio high-pass filter is higher than that before adjustment, the filtering gain of the audio high-pass filter is lower than that before adjustment, and the gain of the MBDRC module is higher than that before adjustment ; Use the adjusted audio high-pass filter to perform filtering processing on the target audio signal, and use the adjusted MBDRC module to perform dynamic range control on the target audio signal. In this way, by using the adjusted audio high-pass filter to filter the target audio signal, the power consumption of the mobile terminal can be reduced, and by using the adjusted MBDRC module to perform dynamic range control on the target audio signal, The sound pressure level of the audio signal output by the mobile terminal can be increased; thus, when the mobile terminal is playing audio, power saving does not need to lower the volume, and the impact of power saving on the audio playing effect of the mobile terminal is reduced.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a flowchart of a method for adjusting audio parameters provided by an embodiment of the present invention;

Fig. 2 is an amplitude-frequency characteristic diagram of an audio high-pass filter provided by an embodiment of the present invention;

Fig. 3 is a flowchart of another method for adjusting audio parameters provided by an embodiment of the present invention;

Fig. 4 is the gain characteristic diagram of the MBDRC module provided by the embodiment of the present invention;

FIG. 5 is another amplitude-frequency characteristic diagram of an audio high-pass filter provided by an embodiment of the present invention;

FIG. 6 is a structural diagram of a mobile terminal provided by an embodiment of the present invention;

FIG. 7 is a structural diagram of another mobile terminal provided by an embodiment of the present invention;

FIG. 8 is a structural diagram of another mobile terminal provided by an embodiment of the present invention;

FIG. 9 is a structural diagram of another mobile terminal provided by an embodiment of the present invention;

FIG. 10 is a structural diagram of another mobile terminal provided by an embodiment of the present invention;

FIG. 11 is a structural diagram of another mobile terminal provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Referring to FIG. 1, FIG. 1 is a flowchart of a method for adjusting audio parameters provided by an embodiment of the present invention, as shown in FIG. 1, including the following steps:

Step 101, detecting the remaining power of the mobile terminal.

Wherein, the above-mentioned remaining power can be understood as referring to the ratio of the available power in the battery to the nominal capacity.

Step 102: Adjust the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjust the gain of the MBDRC module, wherein the adjusted filtering frequency of the audio high-pass filter The frequency is higher than the filter frequency before adjustment, the filter gain of the audio high-pass filter is lower than the filter gain before adjustment, and the gain of the MBDRC module is higher than the gain before adjustment.

Wherein, it should first be explained that the audio high-pass filter can be understood as one of many filters forming (Equalize, referred to as EQ) equalizer, and the above-mentioned filtering frequency can also refer to the filtering frequency point, as shown in Figure 2 After setting the filter frequency, that is, the filter frequency point and filter gain, the signals corresponding to the frequency points before this point will be attenuated, that is, the signals smaller than the above filter frequency will be attenuated, and only the frequency higher than this frequency point will be attenuated. Only the signal can pass through, that is to say, the signal greater than the above filtering frequency will not be affected; and the filter gain can be understood as the maximum value attenuated by the signal smaller than the above filtering frequency; it should be noted that the higher the filtering frequency, the greater the filtering gain. The larger the value, the higher the degree of attenuation of the signal at a frequency lower than the above-mentioned filtering frequency.

In addition, it should be noted that the above-mentioned signal with a frequency lower than the above-mentioned filtering frequency can be understood as a low-frequency signal, and the low-frequency signal usually has less influence on the sound pressure level of the target audio signal, but has a greater impact on the hearing of the target audio signal. Large, if the low-frequency signal is attenuated by the audio high-pass filter here, it will have little effect on the sound pressure level. It can be said that only a part of the sound pressure level is reduced, mainly reducing the sense of hearing of the output audio signal, but it can reduce a lot Power consumption required by low-frequency signals; since attenuation of low-frequency signals will be accompanied by a drop in sound pressure level, it is necessary to increase the reduced sound pressure level back; and by increasing the gain of the above-mentioned MBDRC module, it can be increased accordingly Sound pressure level, as long as the increased sound pressure level is the same as the sound pressure level reduced by attenuating low-frequency signals, and the power consumption required to increase the gain of the above-mentioned MBDRC module is less than the power consumption reduced by attenuating low-frequency signals.

Step 103: Use the adjusted audio high-pass filter to filter the target audio signal, and use the adjusted MBDRC module to perform dynamic range control on the target audio signal.

Wherein, it should be noted that the above-mentioned filter processing here mainly refers to attenuation processing of the target audio signal; it should also be noted that the above-mentioned dynamic range can be understood as the ratio of a large signal to a small signal in an audio signal, wherein the large signal Refers to an audio signal greater than a certain amplitude, a small signal refers to an audio signal smaller than a certain amplitude, and the above-mentioned dynamic range control means that the amplitude of the above-mentioned large signal or the above-mentioned small signal can be adjusted accordingly. It should also be noted that in this example, the process of using the adjusted audio high-pass filter to filter the target audio signal is first performed, and then the adjusted MBDRC module is used to perform dynamic processing on the target audio signal. Scope control process. It needs to be added that, in addition to being applicable to driving a speaker for playback, this embodiment can also drive audio output devices such as earphones, bluetooth earphones, stereos, and bluetooth stereos to output audio signals.

In the embodiment of the present invention, the above-mentioned mobile terminal may be a mobile phone, a tablet computer (Tablet PersonalComputer), a laptop computer (Laptop Computer), a personal digital assistant (personal digital assistant, PDA for short), a mobile Internet device (Mobile Internet Device, MID) Or wearable device (Wearable Device) and so on.

In the embodiment of the present invention, the remaining power of the mobile terminal is detected; according to the size of the remaining power, the filtering frequency and the filtering gain of the audio high-pass filter are adjusted, and the gain of the MBDRC module is adjusted, Wherein, the adjusted filtering frequency of the audio high-pass filter is higher than that before adjustment, the filtering gain of the audio high-pass filter is lower than that before adjustment, and the gain of the MBDRC module is higher than that before adjustment ; Use the adjusted audio high-pass filter to perform filtering processing on the target audio signal, and use the adjusted MBDRC module to perform dynamic range control on the target audio signal. In this way, by using the adjusted audio high-pass filter to filter the target audio signal, the power consumption of the mobile terminal can be reduced, and by using the adjusted MBDRC module to perform dynamic range control on the target audio signal, The sound pressure level of the audio signal output by the mobile terminal can be increased; thus, when the mobile terminal is playing audio, power saving does not need to lower the volume, and the impact of power saving on the audio playing effect of the mobile terminal is reduced.

Referring to FIG. 3 , FIG. 3 is a flowchart of another method for adjusting audio parameters provided by an embodiment of the present invention. The main difference between this embodiment and the previous embodiment is that this method uses the adjusted audio high-pass filter to filter the target audio signal, and uses the adjusted MBDRC module to filter the target audio signal. After the dynamic range control, a charge status judging mechanism is added. As shown in Figure 3, the following steps are included:

Step 301, detecting the remaining power of the mobile terminal;

Wherein, the above-mentioned remaining power can be understood as referring to the ratio of the available power in the battery to the nominal capacity.

Step 302: Adjust the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjust the gain of the MBDRC module, wherein the adjusted filtering frequency of the audio high-pass filter The frequency is higher than the filter frequency before adjustment, the filter gain of the audio high-pass filter is lower than the filter gain before adjustment, and the gain of the MBDRC module is higher than the gain before adjustment.

Among them, if the signal is attenuated by the audio high-pass filter here, the power consumption required by a large number of low-frequency signals can be reduced; since the attenuation of low-frequency signals will be accompanied by a drop in the sound pressure level, it is necessary to raise the reduced sound pressure level back. ; By increasing the gain of the above-mentioned MBDRC module, the sound pressure level can be increased correspondingly, as long as it is ensured that the improved sound pressure level is the same as the sound pressure level reduced by attenuating the low-frequency signal, and it is guaranteed to increase the gain of the above-mentioned MBDRC module. The power consumption needs to be less than the power consumption reduced by attenuating low-frequency signals. Explanations about other needs have been elaborated in the previous embodiment, and will not be repeated here.

Optionally, the steps of adjusting the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjusting the gain of the MBDRC module include:

If the remaining power is less than the preset threshold, adjust the filter frequency of the audio high-pass filter to the first preset frequency, adjust the filter gain of the audio high-pass filter to the first preset gain, and adjust the MBDRC module The gain is adjusted to a second preset gain, wherein the first preset frequency is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the first preset gain is higher than the filtering frequency before the adjustment of the audio high-pass filter The gain is low, and the second preset gain is higher than the gain before the adjustment of the MBDRC module.

Wherein, it should be noted that when it is detected that the remaining power is less than the preset threshold, the mobile terminal can automatically adjust the filter gain, filter frequency and the gain of the MBDRC module, or can output visual information or voice information to prompt Adjustments are made manually by the user. For example, the user sets the preset threshold to 50%. When the mobile terminal detects that the remaining power is less than 50%, the mobile terminal can automatically adjust the filter gain, filter frequency, and MBDRC module gain to the corresponding values. A text message can be output on the screen of the mobile phone to prompt the user to manually adjust the relevant audio parameters, namely the filter gain of the above-mentioned audio high-pass filter, the filter frequency point of the above-mentioned audio high-pass filter and the gain of the MBDRC module.

In addition, the user needs to set a preset threshold in advance, usually set as a percentage of the remaining power. Moreover, in order to improve the power saving efficiency, multiple thresholds can be set, so as to save power more effectively. For example, the preset threshold may include a first preset threshold, a second preset threshold, a third preset threshold and a fourth preset threshold, wherein the first preset threshold, the second preset threshold, the third preset threshold and The size of the fourth preset threshold decreases successively, that is, the first preset threshold > the second preset threshold > the third preset threshold > the fourth preset threshold; for example: the first preset threshold is 60%, the second preset The threshold is 45%, the third preset threshold is 35%, and the fourth preset threshold is 20%.

It should also be noted that the value of the filter gain, filter frequency and the gain of the MBDRC module can be set in advance by the manufacturer and stored in the mobile terminal, that is, the first preset frequency, the first preset gain and the second preset gain The values can be set and reserved in advance. For example, after debugging, the manufacturer sets the first preset frequency to A, the first preset gain to B, and the second preset gain to C. Afterwards, it is stored in the mobile terminal as the first set of power-saving parameters. When users need to use it, they only need to call it directly. They can also set the first preset frequency to D and the first preset gain to E. The second preset gain is set to F, and stored in the mobile terminal as the second set of power saving parameters, that is to say, multiple sets of parameters can be stored for flexible calling.

Of course, users can also pre-set relevant audio parameters such as filter gain, filter frequency point, and MBDRC module gain according to their own needs and experience, and call them when they need to use them. It should be noted that the manufacturer or the user may also set a set of normal parameters in advance, that is, the audio parameters when the mobile terminal is in the audio playing state and does not need to save power.

In this way, in this embodiment, the filter frequency, the filter gain, and the gain of the MBDRC module are set in advance by the manufacturer or the user, so that power can be saved more conveniently.

Optionally, the steps of adjusting the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjusting the gain of the MBDRC module include:

According to the first preset relationship between the remaining power, the filtering frequency of the audio high-pass filter, and the filtering gain of the audio high-pass filter, determine the filtering frequency and filter corresponding to the detected remaining power gain;

adjusting the filtering frequency of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, and adjusting the filtering gain of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, wherein , the filtering frequency corresponding to the detected remaining power is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the filtering gain corresponding to the detected remaining power is lower than the filtering gain before the adjustment of the audio high-pass filter ;

Determine the gain of the MBDRC module corresponding to the detected remaining power according to a second preset relationship between the remaining power and the gain of the MBDRC module;

Adjusting the gain of the MBDRC module to the gain of the MBDRC module corresponding to the determined detected remaining power, wherein the determined gain of the MBDRC module corresponding to the detected remaining power is greater than that of the MBDRC module adjusted The previous gain is high.

In this embodiment, it should first be explained that if the method of adjusting the audio parameters is adopted as long as the audio parameters are lower than the preset threshold value, since the audio parameters may change suddenly, the sound heard by the user may also change suddenly, thus Make it difficult for users to adapt to this change. Among them, for example, the first preset relationship can be established as shown in Figure 5, wherein the lower the remaining power, the higher the filtering frequency of the audio high-pass filter, and the higher the filtering gain, the filtering frequency corresponding to 110% of the remaining power The recommended setting is 200 Hz. In addition, in the second preset relationship, the MBDRC gain corresponding to 110% of the remaining power is recommended to be set to 0dB, that is, the MBDRC module is not effective at this time, and the amplitude of the small signal will not be increased. If the current remaining power is reduced, the corresponding The gain of the MBDRC module will gradually increase, and the amplitude of the small signal will also become higher and higher, that is, the lower the remaining power, the greater the increase of the amplitude of the small signal.

In this way, this embodiment adopts the natural transition method of dynamic adjustment by establishing the mapping relationship between the remaining power and the power saving parameters, namely the filter frequency, filter gain and the gain of the MBDRC module, so that the sound no longer changes suddenly, but Changes occur slowly and gradually, making it difficult for users to feel the changes.

Step 303: Use the adjusted audio high-pass filter to perform filtering processing on the target audio signal, and use the adjusted MBDRC module to perform dynamic range control on the target audio signal.

Wherein, it should be noted that the above-mentioned filter processing here mainly refers to attenuation processing of the target audio signal; it should also be noted that the above-mentioned dynamic range can be understood as the ratio of a large signal to a small signal in an audio signal, wherein the large signal Refers to an audio signal larger than a certain amplitude, and a small signal refers to an audio signal smaller than a certain amplitude. The above-mentioned dynamic range control means that the amplitude of the above-mentioned large signal or small signal can be adjusted accordingly. It should also be noted that in this example, the process of using the adjusted audio high-pass filter to filter the target audio signal is first performed, and then the adjusted MBDRC module is used to perform dynamic processing on the target audio signal. Scope control process.

Optionally, the steps of using the adjusted audio high-pass filter to filter the target audio signal, and using the adjusted MBDRC module to control the dynamic range of the target audio signal include:

using the adjusted audio high-pass filter to attenuate signals of the target audio signal that are less than the first preset frequency;

The adjusted MBDRC module is used to amplify the signals of the target audio signal that are smaller than the preset amplitude.

In this embodiment, it should be noted that the filtering frequency can be set to 0. The above-mentioned first preset frequency usually refers to a low frequency, which can be understood as a signal below 2k Hz; the above-mentioned preset amplitude signal mainly refers to a signal with a small amplitude in the dynamic range. That is, the small signal usually referred to, because the electro-acoustic conversion efficiency of the small signal is high, by increasing the amplitude of the small signal, more sound pressure can be obtained with less power; when there are more large signals, speakers, earphones or other audio The electro-acoustic conversion efficiency of the output device will decrease. Therefore, after increasing the amplitude of the small signal through the MBDRC module, more sound pressure increments can be obtained. Therefore, as shown in FIG. 4 , the amplitude of the small signal is mainly increased, and the amplitude of the large signal is kept unchanged to reduce the dynamic range of the audio signal.

In this way, in this embodiment, after the amplitude of the small signal is increased by the MBDRC module, more sound pressure increments can be obtained, so that more sound pressure can be obtained with less power.

It should be noted that step 304 is optional.

Step 304, if it is detected that the mobile terminal is in the charging state, adjust the filtering frequency of the audio high-pass filter to the second preset frequency, and adjust the filtering gain of the audio high-pass filter to the third preset gain , adjusting the gain of the MBDRC module to a fourth preset gain.

Among them, it should be noted that when the mobile terminal is in the charging state, it usually means that power saving is no longer needed, so the audio parameters can be restored to the default parameters, that is, the second preset frequency, the third preset gain and the fourth preset gain. The preset gain can be understood as a normal audio parameter reserved in advance by the manufacturer or the user. In this way, unnecessary power consumption of the mobile terminal can be reduced, and a better audio playback effect can also be restored.

Optionally, after the step of using the adjusted audio high-pass filter to filter the target audio signal, and using the adjusted MBDRC module to perform dynamic range control on the target audio signal, the method Also includes:

If the detected remaining power is greater than the preset threshold, the filter frequency of the audio high-pass filter is adjusted to the second preset frequency, the filter gain of the audio high-pass filter is adjusted to the third preset gain, and The gain of the MBDRC module is adjusted to a fourth preset gain.

Among them, when the remaining power level increases above the preset threshold value, the audio parameters can also be restored to the default parameters, that is, the second preset frequency, the third preset gain and the fourth preset gain can be understood as the manufacturer or user Normal audio parameters reserved in advance. In this way, it can intelligently judge whether the user no longer needs to save power, so as to restore a better audio playback effect.

In the embodiment of the present invention, the remaining power of the mobile terminal is detected; if the remaining power is less than a preset threshold, the filtering frequency of the audio high-pass filter is adjusted to the first preset frequency, and the frequency of the audio high-pass filter is adjusted to the first preset frequency. The filter gain is adjusted to a first preset gain, and the gain of the MBDRC module is adjusted to a second preset gain, wherein the first preset frequency is higher than the filter frequency before the adjustment of the audio high-pass filter, and the second A preset gain is lower than the filter gain before the adjustment of the audio high-pass filter, and the second preset gain is higher than the gain before the adjustment of the MBDRC module; use the adjusted audio high-pass filter for the target audio signal Perform filtering processing, and use the adjusted MBDRC module to perform dynamic range control on the target audio signal. In this way, the mobile terminal can save power without lowering the volume during audio playback, thereby reducing the impact of power saving on the audio playback effect of the mobile terminal.

Referring to FIG. 6 , FIG. 6 is a structural diagram of a mobile terminal provided by an embodiment of the present invention, which can implement the details of the method for adjusting audio parameters in the above embodiment, and achieve the same effect. As shown in Figure 6, the mobile terminal 600 includes a detection module 601, an adjustment module 602 and a processing module 603, the detection module 601 is connected to the adjustment module 602, and the adjustment module 602 is connected to the processing module 603, wherein:

A detection module 601, configured to detect the remaining power of the mobile terminal;

The adjustment module 602 is configured to adjust the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjust the gain of the MBDRC module, wherein the audio high-pass filter adjusts The filtered frequency after the adjustment is higher than the filtered frequency before the adjustment, the filter gain of the audio high-pass filter is lower than the filter gain before the adjustment, and the gain of the MBDRC module is higher than the gain before the adjustment;

The processing module 603 is configured to use the adjusted audio high-pass filter to perform filtering processing on the target audio signal, and use the adjusted MBDRC module to perform dynamic range control on the target audio signal.

Optionally, the adjusting module 602 is configured to adjust the filtering frequency of the audio high-pass filter to a first preset frequency if the remaining power is less than a preset threshold, and adjust the filtering gain of the audio high-pass filter to be the first preset gain, and adjust the gain of the MBDRC module to a second preset gain, wherein the first preset frequency is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the first preset The gain is lower than the filter gain before the adjustment of the audio high-pass filter, and the second preset gain is higher than the gain before the adjustment of the MBDRC module.

Optionally, as shown in FIG. 7, the processing module 603 includes:

The first processing unit 6031 is configured to use the adjusted audio high-pass filter to attenuate signals in the target audio signal that are less than the first preset frequency;

The second processing unit 6032 is configured to use the adjusted MBDRC module to amplify signals in the target audio signal that are smaller than a preset amplitude.

Optionally, as shown in FIG. 8, the adjustment module 602 includes:

The first determining unit 6021 is configured to determine the detected power according to the first preset relationship among the remaining power, the filtering frequency of the audio high-pass filter, and the filtering gain of the audio high-pass filter. The filter frequency and filter gain corresponding to the remaining power;

The first adjustment unit 6022 is configured to adjust the filtering frequency of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, and adjust the filtering gain of the audio high-pass filter to the detected The filtering frequency corresponding to the remaining power, wherein, the filtering frequency corresponding to the detected remaining power is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the filtering gain corresponding to the detected remaining power is higher than that of the audio high-pass filter The filter gain before filter adjustment is low;

The second determining unit 6023 is configured to determine the gain of the MBDRC module corresponding to the detected remaining power according to the second preset relationship between the remaining power and the gain of the MBDRC module;

The second adjustment unit 6024 is configured to adjust the gain of the MBDRC module to the gain of the MBDRC module corresponding to the determined detected remaining power, wherein the determined detected remaining power corresponds to the MBDRC module The gain is higher than the gain of the MBDRC module before adjustment.

Optionally, as shown in FIG. 9, the mobile terminal 600 further includes:

The second adjustment module 604 is configured to adjust the filtering frequency of the audio high-pass filter to a second preset frequency if it is detected that the mobile terminal is in a charging state, and adjust the filtering gain of the audio high-pass filter to be a third preset gain, adjusting the gain of the MBDRC module to a fourth preset gain;

Optionally, as shown in FIG. 11, the mobile terminal 600 further includes:

The third adjustment module 605 is configured to adjust the filtering frequency of the audio high-pass filter to a second preset frequency if the detected remaining power is greater than the preset threshold, and adjust the filtering gain of the audio high-pass filter For the third preset gain, adjust the gain of the MBDRC module to a fourth preset gain.

The mobile terminal 600 can implement various processes implemented by the mobile terminal in the method embodiments in FIG. 1 and FIG. 3 , and details are not repeated here to avoid repetition.

The mobile terminal 600 of the embodiment of the present invention detects the remaining power of the mobile terminal; adjusts the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjusts the gain of the MBDRC module Adjusting, wherein, the adjusted filtering frequency of the audio high-pass filter is higher than that before adjustment, the filtering gain of the audio high-pass filter is lower than that before adjustment, and the gain of the MBDRC module is lower than that before adjustment The gain is high; the adjusted audio high-pass filter is used to filter the target audio signal, and the adjusted MBDRC module is used to control the dynamic range of the target audio signal. In this way, by using the adjusted audio high-pass filter to filter the target audio signal, the power consumption of the mobile terminal can be reduced, and by using the adjusted MBDRC module to perform dynamic range control on the target audio signal, The sound pressure level of the audio signal output by the mobile terminal can be increased; thus, when the mobile terminal is playing audio, power saving does not need to lower the volume, and the impact of power saving on the audio playing effect of the mobile terminal is reduced.

Referring to FIG. 11 , FIG. 11 is a structural diagram of a mobile terminal provided by an embodiment of the present invention, which can realize the details of the method for adjusting audio parameters in the above embodiment and achieve the same effect. As shown in FIG. 11 , a mobile terminal 1100 includes: at least one processor 1101 , a memory 1102 , at least one network interface 1104 and a user interface 1103 . Various components in the mobile terminal 1100 are coupled together through the bus system 1105 . It can be understood that the bus system 1105 is used to realize connection and communication between these components. In addition to the data bus, the bus system 1105 also includes a power bus, a control bus and a status signal bus. However, the various buses are labeled bus system 1105 in FIG. 11 for clarity of illustration.

Wherein, the user interface 1103 may include a display, a keyboard or a pointing device (for example, a mouse, a track ball (track ball), a touch panel or a touch screen, and the like.

It can be understood that the memory 1102 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable P ROM, EPROM), electronic Erasable programmable read-only memory (Electrically EP ROM, EEPROM) or flash memory. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM) , SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SD RAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SD RAM, ESDRAM), synchronous connection dynamic random access memory (Synch link D RAM, SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). Memory 1102 of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 1102 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 11021 and an application program 11022 .

Among them, the operating system 11021 includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing tasks based on hardware. The application program 11022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., and is used to realize various application services. The program for realizing the method of the embodiment of the present invention may be included in the application program 9022 .

In the embodiment of the present invention, by calling the program or instruction stored in the memory 1102, specifically, the program or instruction stored in the application program 11022, when the computer program is executed by the processor 1101, the following steps can be implemented: detect the mobile terminal the remaining power; according to the size of the remaining power, adjust the filter frequency and filter gain of the audio high-pass filter, and adjust the gain of the MBDRC module, wherein the adjusted audio high-pass filter The filter frequency is higher than the filter frequency before adjustment, the filter gain of the audio high-pass filter is lower than the filter gain before adjustment, and the gain of the MBDRC module is higher than the gain before adjustment; the adjusted audio high-pass filter is used Filtering the target audio signal, and using the adjusted MBDRC module to control the dynamic range of the target audio signal.

In the embodiment of the present invention, both the audio high-pass filter and the MBDRC module may be software modules.

The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 1101 or implemented by the processor 1101 . The processor 1101 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be implemented by an integrated logic circuit of hardware in the processor 1101 or instructions in the form of software. The aforementioned processor 1101 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102, and completes the steps of the above method in combination with its hardware.

It should be understood that the embodiments described herein may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this application or a combination thereof.

For a software implementation, the techniques described herein can be implemented through modules (eg, procedures, functions, and so on) that perform the functions described herein. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

Optionally, the processing performed by the processor 1101 to adjust the filtering frequency and filtering gain of the audio high-pass filter and the gain of the MBDRC module according to the size of the remaining power includes:

If the remaining power is less than the preset threshold, adjust the filter frequency of the audio high-pass filter to the first preset frequency, adjust the filter gain of the audio high-pass filter to the first preset gain, and adjust the MBDRC module The gain is adjusted to a second preset gain, wherein the first preset frequency is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the first preset gain is higher than the filtering frequency before the adjustment of the audio high-pass filter The gain is low, and the second preset gain is higher than the gain before the adjustment of the MBDRC module.

Optionally, the performing filtering processing on the target audio signal by using the adjusted audio high-pass filter performed by the processor 1101, and performing dynamic range control on the target audio signal by using the adjusted MBDRC module include :

using the adjusted audio high-pass filter to attenuate signals of the target audio signal that are less than the first preset frequency;

The adjusted MBDRC module is used to amplify the signals of the target audio signal that are smaller than the preset amplitude.

Optionally, the adjusting the filtering frequency and filtering gain of the audio high-pass filter and adjusting the gain of the MBDRC module according to the size of the remaining power performed by the processor 1101 includes:

According to the first preset relationship between the remaining power, the filtering frequency of the audio high-pass filter, and the filtering gain of the audio high-pass filter, determine the filtering frequency and filter corresponding to the detected remaining power gain;

adjusting the filtering frequency of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, and adjusting the filtering gain of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, wherein , the filtering frequency corresponding to the detected remaining power is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the filtering gain corresponding to the detected remaining power is lower than the filtering gain before the adjustment of the audio high-pass filter ;

Determine the gain of the MBDRC module corresponding to the detected remaining power according to a second preset relationship between the remaining power and the gain of the MBDRC module;

Adjusting the gain of the MBDRC module to the gain of the MBDRC module corresponding to the determined detected remaining power, wherein the determined gain of the MBDRC module corresponding to the detected remaining power is greater than that of the MBDRC module adjusted The previous gain is high.

Optionally, when the computer program is executed by the processor 1101, the following steps may also be implemented:

If it is detected that the mobile terminal is in the charging state, then adjust the filtering frequency of the audio high-pass filter to the second preset frequency, adjust the filtering gain of the audio high-pass filter to the third preset gain, and adjust the filtering frequency of the audio high-pass filter to the third preset gain. The gain of the MBDRC module is adjusted to a fourth preset gain; or,

If the detected remaining power is greater than the preset threshold, the filter frequency of the audio high-pass filter is adjusted to the second preset frequency, the filter gain of the audio high-pass filter is adjusted to the third preset gain, and The gain of the MBDRC module is adjusted to a fourth preset gain.

The mobile terminal 1100 is capable of implementing various processes implemented by the mobile terminal in the foregoing embodiments, and details are not repeated here to avoid repetition.

The mobile terminal 1100 of the embodiment of the present invention detects the remaining power of the mobile terminal; adjusts the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjusts the gain of the MBDRC module Adjusting, wherein, the adjusted filtering frequency of the audio high-pass filter is higher than that before adjustment, the filtering gain of the audio high-pass filter is lower than that before adjustment, and the gain of the MBDRC module is lower than that before adjustment The gain is high; the adjusted audio high-pass filter is used to filter the target audio signal, and the adjusted MBDRC module is used to control the dynamic range of the target audio signal. In this way, by using the adjusted audio high-pass filter to filter the target audio signal, the power consumption of the mobile terminal can be reduced, and by using the adjusted MBDRC module to perform dynamic range control on the target audio signal, The sound pressure level of the audio signal output by the mobile terminal can be increased; thus, when the mobile terminal is playing audio, power saving does not need to lower the volume, and the impact of power saving on the audio playing effect of the mobile terminal is reduced.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (12)

1. A method for adjusting audio parameters, applied to the mobile terminal comprising audio high-pass filter and multi-segment dynamic range control MBDRC module, characterized in that, comprising: Detecting the remaining power of the mobile terminal; According to the size of the remaining power, adjust the filtering frequency and filtering gain of the audio high-pass filter, and adjust the gain of the MBDRC module, wherein the adjusted filtering frequency ratio of the audio high-pass filter is adjusted The filter frequency before is high, the filter gain of the audio high-pass filter is lower than the filter gain before adjustment, and the gain of the MBDRC module is higher than the gain before adjustment; The adjusted audio high-pass filter is used to filter the target audio signal, and the adjusted MBDRC module is used to control the dynamic range of the target audio signal. 2. The method according to claim 1, wherein, according to the size of the remaining power, the filtering frequency and the filtering gain of the audio high-pass filter are adjusted, and the gain of the MBDRC module is adjusted. Adjustment steps include: If the remaining power is less than the preset threshold, adjust the filtering frequency of the audio high-pass filter to the first preset frequency, adjust the filtering gain of the audio high-pass filter to the first preset gain, and adjust the The gain of the MBDRC module is adjusted to a second preset gain, wherein the first preset frequency is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the first preset gain is higher than the audio frequency high-pass filter The filter gain before adjustment is low, and the second preset gain is higher than the gain before adjustment of the MBDRC module. 3. The method according to claim 2, characterized in that, the adjusted audio high-pass filter is used to filter the target audio signal, and the adjusted MBDRC module is used to filter the target audio signal. Steps for dynamic range control, including: using the adjusted audio high-pass filter to attenuate signals of the target audio signal that are less than the first preset frequency; The adjusted MBDRC module is used to amplify the signals of the target audio signal that are smaller than the preset amplitude. 4. The method according to claim 1, characterized in that, according to the size of the remaining power, the filtering frequency and the filtering gain of the audio high-pass filter are adjusted, and the gain of the MBDRC module is adjusted Adjustment steps include: According to the first preset relationship between the remaining power, the filtering frequency of the audio high-pass filter, and the filtering gain of the audio high-pass filter, determine the filtering frequency and filter corresponding to the detected remaining power gain; adjusting the filtering frequency of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, and adjusting the filtering gain of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, wherein , the filtering frequency corresponding to the detected remaining power is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the filtering gain corresponding to the detected remaining power is lower than the filtering gain before the adjustment of the audio high-pass filter ; Determine the gain of the MBDRC module corresponding to the detected remaining power according to a second preset relationship between the remaining power and the gain of the MBDRC module; Adjusting the gain of the MBDRC module to the gain of the MBDRC module corresponding to the detected remaining power, wherein the gain of the MBDRC module corresponding to the detected remaining power is higher than the gain of the MBDRC module before adjustment . 5. The method according to any one of claims 1-4, wherein the adjusted audio high-pass filter is used to filter the target audio signal, and the adjusted MBDRC module is used to filter the target audio signal. After the step of performing dynamic range control on the target audio signal, the method further includes: If it is detected that the mobile terminal is in the charging state, then adjust the filtering frequency of the audio high-pass filter to the second preset frequency, adjust the filtering gain of the audio high-pass filter to the third preset gain, and adjust the filtering frequency of the audio high-pass filter to the third preset gain. The gain of the MBDRC module is adjusted to a fourth preset gain; or, If the detected remaining power is greater than the preset threshold, the filter frequency of the audio high-pass filter is adjusted to the second preset frequency, the filter gain of the audio high-pass filter is adjusted to the third preset gain, and The gain of the MBDRC module is adjusted to a fourth preset gain. 6. A mobile terminal, characterized in that, comprising: A detection module, configured to detect the remaining power of the mobile terminal; An adjustment module, configured to adjust the filtering frequency and filtering gain of the audio high-pass filter according to the size of the remaining power, and adjust the gain of the MBDRC module, wherein the audio high-pass filter is adjusted The filter frequency is higher than the filter frequency before adjustment, the filter gain of the audio high-pass filter is lower than the filter gain before adjustment, and the gain of the MBDRC module is higher than the gain before adjustment; A processing module, configured to use the adjusted audio high-pass filter to filter the target audio signal, and use the adjusted MBDRC module to control the dynamic range of the target audio signal. 7. The mobile terminal according to claim 6, wherein the adjustment module is configured to adjust the filtering frequency of the audio high-pass filter to a first preset frequency if the remaining power is less than a preset threshold , adjusting the filter gain of the audio high-pass filter to a first preset gain, and adjusting the gain of the MBDRC module to a second preset gain, wherein the first preset frequency is higher than that of the audio high-pass filter The filter frequency before adjustment of the filter is high, the first preset gain is lower than the filter gain before adjustment of the audio high-pass filter, and the second preset gain is higher than the gain before adjustment of the MBDRC module. 8. The mobile terminal according to claim 7, wherein the processing module comprises: A first processing unit, configured to use the adjusted audio high-pass filter to attenuate signals of the target audio signal that are less than the first preset frequency; The second processing unit is configured to use the adjusted MBDRC module to amplify signals in the target audio signal that are smaller than a preset amplitude. 9. The mobile terminal according to claim 6, wherein the adjustment module comprises: The first determining unit is configured to determine the detected residual power according to a first preset relationship among the remaining power, the filtering frequency of the audio high-pass filter, and the filtering gain of the audio high-pass filter. The filter frequency and filter gain corresponding to the electric quantity; A first adjustment unit, configured to adjust the filtering frequency of the audio high-pass filter to the filtering frequency corresponding to the detected remaining power, and adjust the filtering gain of the audio high-pass filter to the detected remaining power The filtering frequency corresponding to the electric quantity, wherein, the filtering frequency corresponding to the detected remaining electric quantity is higher than the filtering frequency before the adjustment of the audio high-pass filter, and the filtering gain corresponding to the detected remaining electric quantity is higher than that of the audio high-pass filter The filter gain before filter adjustment is low; The second determining unit is configured to determine the gain of the MBDRC module corresponding to the detected remaining power according to a second preset relationship between the remaining power and the gain of the MBDRC module; The second adjustment unit is configured to adjust the gain of the MBDRC module to the gain of the MBDRC module corresponding to the detected remaining power, wherein the gain of the MBDRC module corresponding to the detected remaining power is greater than the The gain of the MBDRC module before adjustment is high. 10. The mobile terminal according to any one of claims 1-4, wherein the mobile terminal further comprises: The second adjustment module is configured to adjust the filtering frequency of the audio high-pass filter to a second preset frequency if it is detected that the mobile terminal is in a charging state, and adjust the filtering gain of the audio high-pass filter to a second preset frequency. Three preset gains, adjusting the gain of the MBDRC module to a fourth preset gain; or, A third adjustment module, configured to adjust the filtering frequency of the audio high-pass filter to a second preset frequency if the detected remaining power is greater than a preset threshold, and adjust the filtering gain of the audio high-pass filter to a third preset gain, adjusting the gain of the MBDRC module to a fourth preset gain. 11. A mobile terminal, characterized in that it comprises: a memory, a processor, and a computer program stored on the memory and operable on the processor, when the processor executes the computer program, it realizes the The steps in the method for adjusting audio parameters described in any one of claims 1-5. 12. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method according to any one of claims 1-5 is realized. Steps in a method of adjusting an audio parameter.