CN104410379B - A kind of volume adjusting method - Google Patents
A kind of volume adjusting method Download PDFInfo
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- CN104410379B CN104410379B CN201410594466.9A CN201410594466A CN104410379B CN 104410379 B CN104410379 B CN 104410379B CN 201410594466 A CN201410594466 A CN 201410594466A CN 104410379 B CN104410379 B CN 104410379B
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Abstract
The embodiment of the invention discloses a kind of volume adjusting methods, which comprises acquires the characteristic parameter of current audio signals；The characteristic parameter and preset parameter threshold corresponding with current volume lattice number are compared；According to comparison result, the gain of the current volume lattice number is adjusted.The embodiment of the present invention can set the corresponding volume gain of volume adjustment according to the parameter of audio file, promote user experience.
Description
Technical field
The present invention relates to electronic technology fields, and in particular to a kind of volume adjusting method.
Background technique
With the gradual popularization of multimedia applications, to listen to multimedia frequency higher and higher by user.Obtain multimedia resource
Mode have very much, the amplitude of multimedia file obtained by different channels volume itself varies, for example, some songs
The amplitude of volume record when can be artificial the several dB of decaying (volume is less than normal when broadcasting), it is special that some songs are not passed through
It handles (volume is normal when broadcasting), some then artificial several dB of increase (volume is bigger than normal when broadcasting), even also, same head
Song, the amplitude of different its volume of paragraph may also be different.
In the prior art, the corresponding audio gain of every lattice volume is fixed and invariable, will not be with multimedia file middle pitch
The amplitude variations of frequency signal and change, when listening to different multimedia files, terminal is arranged identical volume lattice number, and user
The sound heard but varies, and user is caused to be frequently necessary to manually adjust volume to make volume meet the habit of oneself.
Summary of the invention
The embodiment of the invention provides a kind of volume adjusting methods, and volume tune can be set according to the parameter of audio file
Corresponding volume gain is saved, user experience is promoted.
The embodiment of the invention provides a kind of volume adjusting methods, which comprises
Acquire the characteristic parameter of current audio signals；
The characteristic parameter and preset parameter threshold corresponding with current volume lattice number are compared；
According to comparison result, the gain of the current volume lattice number is adjusted.
The embodiment of the present invention is by the characteristic parameter of collected current audio signals and preset with current volume lattice number phase
Corresponding parameter threshold is compared, and according to comparison result, the gain of the current volume lattice number is adjusted, so as to according to audio
The parameter of file sets the corresponding volume gain of volume adjustment, promotes user experience.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of first embodiment flow diagram of volume adjusting method provided in an embodiment of the present invention；
Fig. 2 is a kind of second embodiment flow diagram of volume adjusting method provided in an embodiment of the present invention；
Fig. 3 is a kind of 3rd embodiment flow diagram of volume adjusting method provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic structural diagram of the first embodiment of terminal provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic structural diagram of the second embodiment of terminal provided in an embodiment of the present invention；
Fig. 6 is a kind of 3rd embodiment structural schematic diagram of terminal provided in an embodiment of the present invention；
Fig. 7 is a kind of fourth embodiment structural schematic diagram of terminal provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Playback terminal in the embodiment of the present invention may include PC, smart phone (such as Android phone, iOS hand
Machine, Windows Phone mobile phone etc.), MP3, MP4, MP5, tablet computer, palm PC, mobile internet device (MID,
Mobile Internet Devices) or wearable device etc. have the terminal of multi-media player function.
Referring to Fig. 1, being a kind of first embodiment flow diagram of volume adjusting method provided in an embodiment of the present invention.
As shown in Figure 1, this method may comprise steps of:
The characteristic parameter of S101, playback terminal acquisition current audio signals.
In the specific implementation, the source of above-mentioned audio signal includes: song files, video file, network flow-medium, FM wide
It broadcasts, at least one of voice communication and video conference.Features described above parameter is to refer to quantization means audio signal sound spy
The design parameter of sign, characteristic parameter can be the amplitude of above-mentioned audio signal or the frequency of above-mentioned audio signal, and the present invention is real
Example is applied to be not construed as limiting.The duration of acquisition can be a period of time being switched to after next multimedia file, can also be with
During broadcasting for entire multimedia file.
Playback terminal is acquired in multimedia file by way of sampling first before playing specified multimedia file
The characteristic parameter of audio signal, sample mode therein can be analog-to-digital conversion (ADC, Analog-to-Digital
Converting) sampling or frequency sampling, the specific sample mode embodiment of the present invention are not construed as limiting.
S102, playback terminal carry out the characteristic parameter and preset parameter threshold corresponding with current volume lattice number
Compare.
In the specific implementation, the system sound volume of playback terminal has multiple ranks, each volume-level can respectively correspond one
Volume lattice number.After playback terminal starting, system can retain the volume lattice number being arranged when last time shutdown, if user is without again
Setting, then using the volume lattice number as current volume lattice number, if user resets system sound volume, after being arranged
Volume lattice number as current volume lattice number.Above-mentioned parameter threshold value refers to a ginseng of the volume for guaranteeing sound in comfort standard
According to value, the value of system default can be used, customized setting can also be carried out by user in use.
Playback terminal will collected characteristic parameter and preset corresponding with current volume lattice number in step s101
Parameter threshold is compared, to provide the foundation that playback terminal is adjusted in step S103.
S103, according to comparison result, playback terminal adjusts the gain of the current volume lattice number.
In the specific implementation, every lattice volume of system all corresponds to the gain of a default after playback terminal starting.It plays eventually
End automatically regulates the gain of above-mentioned current volume lattice number according to comparison result in step s 102, so that in switching multi-media
Volume remains in the range of user is comfortable on before and after file.
In the embodiment of the present invention, playback terminal by the characteristic parameter of collected current audio signals and it is preset with it is current
The corresponding parameter threshold of volume lattice number is compared；According to comparison result, playback terminal adjusts the increasing of the current volume lattice number
Benefit promotes user experience so as to set the corresponding volume gain of volume adjustment according to the parameter of audio file.
Referring to Fig. 2, being a kind of second embodiment flow diagram of volume adjusting method provided in an embodiment of the present invention.
As shown in Fig. 2, this method may comprise steps of:
S201, setting simultaneously store the corresponding parameter threshold of every lattice volume, and the parameter threshold includes amplitude threshold and frequency
At least one of rate threshold value.
In the specific implementation, the system sound volume of playback terminal has multiple ranks, each volume-level can respectively correspond one
Volume lattice number.Above-mentioned parameter threshold value refers to a reference point for guaranteeing wave volume in comfort standard, can be silent using system
The value recognized can also carry out customized setting by user in use.The parameter threshold set is stored in playback terminal
Memory in for it is subsequent relatively use, above-mentioned parameter threshold value includes at least one of amplitude threshold and frequency threshold.
S202, the characteristic parameter for acquiring current audio signals, the characteristic parameter includes the vibration of the current audio signals
At least one of width and the frequency of the current audio signals.
In the specific implementation, the source of above-mentioned audio signal includes: song files, video file, network flow-medium, FM wide
It broadcasts, at least one of voice communication and video conference.Features described above parameter is to refer to quantization means audio signal sound spy
The design parameter of sign, characteristic parameter can be the amplitude of above-mentioned audio signal or the frequency of above-mentioned audio signal, and the present invention is real
Example is applied to be not construed as limiting.The duration of acquisition can be a period of time being switched to after next multimedia file, can also be with
During broadcasting for entire multimedia file.
Playback terminal passes through sampling before playing specified multimedia file or during playing multimedia file
Mode acquires the characteristic parameter of multimedia file sound intermediate frequency signal, sample mode therein can for analog-to-digital conversion (ADC,
Analog-to-Digital Converting) sampling or frequency sampling, the specific sample mode embodiment of the present invention be not construed as limiting.
S203, the average value for calculating the characteristic parameter of the collected current audio signals in predetermined time period.
In the specific implementation, above-mentioned predetermined time period can be 3 seconds, 5 seconds or 10 seconds etc., the specific duration embodiment of the present invention
It is not construed as limiting.The characteristic parameter of playback terminal above-mentioned current audio signals of continuous acquisition in preset time span, has acquired
Bi Hou calculates the average value of the characteristic parameter of collected above-mentioned current audio signals in above-mentioned predetermined time period.
S204, the average value and preset parameter threshold corresponding with current volume lattice number are compared.
In the specific implementation, since the audio signal in each multimedia file can generally have high pitch (or high frequency) and low
Sound (or low frequency) part, if being compared using descant (or highest frequency) and double bass (or low-limit frequency) and being easy to produce
Raw erroneous judgement, meanwhile, the influence of noise is difficult to avoid.It is compared more rationally using the average value in a period of time, meanwhile, energy
The interference for largely excluding noise, so that comparison result is more accurate.Playback terminal will calculate in step S203
Average value and step S201 in the parameter threshold corresponding with current volume lattice number that is arranged be compared, to provide step
The foundation that playback terminal is adjusted in S207~S210.
If S205, the characteristic parameter include the amplitude of the current audio signals, S207~S208 is thened follow the steps.
If S206, the characteristic parameter include the frequency of the current audio signals, S209~S210 is thened follow the steps.
If S207, the average value are greater than the amplitude threshold, reduce the gain of the current volume lattice number.
In the specific implementation, showing present multimedia when playback terminal judges that above-mentioned average value is greater than above-mentioned amplitude threshold
The acoustic amplitudes of file sound intermediate frequency signal itself are bigger than normal, and sound is higher when causing directly to play out, and can damage the hearing of user,
So that user feels uncomfortable, at this point, playback terminal can reduce the corresponding gain of current volume lattice number automatically, so that actually broadcasting
The sound size released meets the habit of user.
Specific gain adjustment scheme is as shown in table 1 in the embodiment of the present invention:
Table 1
| Volume lattice number | Gain reduces | Default gain | Gain increases |
| One | 1dB | 3dB | 5dB |
| Two | 3dB | 5dB | 7dB |
| Three | 6dB | 8dB | 10dB |
| Four | 10dB | 12dB | 14dB |
| Five | 15dB | 17dB | 19dB |
For example, the volume lattice number of playback terminal shares five lattice by taking song A as an example, max volume is five lattice, minimum sound
Amount is zero lattice, and it is three lattice that volume lattice number is arranged after starting, i.e., current volume lattice number is three lattice, the corresponding default of current volume lattice number
Gain is 8dB, and song A is artificial when recording to increase several dB (volume is bigger than normal when broadcasting), with current volume lattice number
Corresponding amplitude threshold is set as 500mV, and above-mentioned predetermined time period is set as 5 seconds, and the minimum resolution for adjusting gain is
1dB.Before song A is played and comes out, playback terminal calculates the average value of the amplitude of collected song A in 5 seconds first, knot
Fruit is 600mV, and the average value 600mV of the amplitude of song A is greater than above-mentioned amplitude threshold corresponding with current volume lattice number at this time
500mV, then according to table 1, the corresponding gain of current volume lattice number is reduced to 6dB by default gain 8dB by playback terminal, after adjusting
Playback terminal again plays back song A, and the sense of hearing that sound at this time just meets user is got used to.Current volume lattice number is corresponding
Gain 6dB is reduced to by 8dB can be sequentially reduced using 1dB as step pitch and realize, can also directly reduce 2dB to realize, tool
The body implementation embodiment of the present invention is not construed as limiting.
If S208, the average value are less than the amplitude threshold, increase the gain of the current volume lattice number.
In the specific implementation, showing present multimedia when playback terminal judges that above-mentioned average value is less than above-mentioned amplitude threshold
The acoustic amplitudes of file sound intermediate frequency signal itself are less than normal, and sound is relatively low when causing directly to play out, and can user be listened less
It is clear, at this point, playback terminal can be automatically increased the corresponding gain of current volume lattice number until above-mentioned current volume lattice number is corresponding
Gain is equal to the corresponding gain of above-mentioned amplitude threshold, so that the sound size that actual play comes out meets the habit of user.
For example, the volume lattice number of playback terminal shares five lattice by taking song B as an example, max volume is five lattice, minimum sound
Amount is zero lattice, and it is three lattice that volume lattice number is arranged after starting, i.e., current volume lattice number is three lattice, the corresponding default of current volume lattice number
Gain is 8dB, and song B is artificial when recording to reduce several dB (volume is less than normal when broadcasting), with current volume lattice number
Corresponding amplitude threshold is set as 500mV, and above-mentioned predetermined time period is set as 5 seconds, and the minimum resolution for adjusting gain is
1dB.Before song B is played and comes out, playback terminal calculates the average value of the amplitude of collected song B in 5 seconds first, knot
Fruit is 400mV, and the average value 400mV of the amplitude of song B is less than above-mentioned amplitude threshold corresponding with current volume lattice number at this time
500mV, then according to table 1, the corresponding gain of current volume lattice number is increased to 10dB by default gain 8dB by playback terminal, is adjusted
Playback terminal again plays back song B afterwards, and the sense of hearing that sound at this time just meets user is got used to.By current volume lattice number pair
The gain answered, which by 8dB is increased to 10dB and can be sequentially increased using 1dB as step pitch, to be realized, can also directly increase 2dB to realize,
The specific implementation embodiment of the present invention is not construed as limiting.
If S209, the average value are greater than the frequency threshold, reduce the gain of the current volume lattice number.
If S210, the average value are less than the frequency threshold, increase the gain of the current volume lattice number.
In the embodiment of the present invention, parameter threshold corresponding with every lattice volume is arranged first and saves for playback terminal；It plays
The characteristic parameter of terminal acquisition current audio signals and the spy for calculating the collected current audio signals in predetermined time period
Levy the average value of parameter；Then, playback terminal is by the average value and preset parameter threshold corresponding with current volume lattice number
It is compared, if the average value is greater than the parameter threshold, playback terminal reduces the gain of current volume lattice number, if the average value
Less than the parameter threshold, then playback terminal increases the gain of current volume lattice number.The embodiment of the present invention allows that user is customized sets
Parameter threshold corresponding with every lattice volume is set, the flexibility of playback terminal is improved；With the average value in a period of time and in advance
If parameter threshold be compared so that comparison result more it is accurate rationally；It is decreased or increased according to comparison result playback terminal
The gain of the current volume lattice number, so as to set the corresponding volume gain of volume adjustment according to the parameter of audio file,
Promote user experience.
Referring to Fig. 3, being a kind of 3rd embodiment flow diagram of volume adjusting method provided in an embodiment of the present invention.
As shown in figure 3, this method may comprise steps of:
S301, the electrical parameter that current audio signals are acquired with the first sampling rate.
In the specific implementation, the source of above-mentioned audio signal includes: song files, video file, network flow-medium, FM wide
It broadcasts, at least one of voice communication and video conference.Above-mentioned electrical parameter include in current value, voltage value and performance number extremely
Few one kind.Playback terminal is by analog-to-digital conversion (ADC, Analog-to-Digital Converting) with the first sampling rate pair
Above-mentioned current audio signals are sampled, and the electrical parameter of above-mentioned current audio signals is obtained.Wherein, above-mentioned first sampling rate
It can be 8KHz, 11.025KHz, 22.05KHz, 44.1KHz, 48KHz or 96KHz etc., specific sampling rate is according to practical application
Depending on, the embodiment of the present invention is not construed as limiting.
S302, the amplitude that the current audio signals are calculated according to the electrical parameter.
In the specific implementation, if above-mentioned electrical parameter includes current value I's, the resistance value R of sampling resistor and above-mentioned current value I
Product R*I is the amplitude of above-mentioned current audio signals；If above-mentioned electrical parameter includes voltage value U, above-mentioned voltage value U is
The amplitude of above-mentioned current audio signals；If above-mentioned electrical parameter includes performance number P, the resistance of performance number P and above-mentioned sampling resistor
The square root of value R productThe amplitude of as above-mentioned current audio signals.
The total degree that is acquired in S303, record predetermined time period and every time collected current audio signals
Amplitude.
In the specific implementation, the total degree n and the current sound of all sampled points that are acquired in playback terminal record predetermined time period t
Amplitude A1, A2, the A3 of frequency signal ..., An.
S304, according to it is described every time the collected current audio signals amplitude and the total degree calculate it is described pre-
If the average value of the amplitude of the collected current audio signals in time span.
In the specific implementation, all samplings of the playback terminal to being acquired in the predetermined time period t recorded in step S303
Amplitude A1, A2, the A3 of point current audio signals ..., An sums=A1+A2+A3+ ...+An, is then asked
The average value of amplitude out
S305, the average value and preset amplitude threshold corresponding with current volume lattice number are compared.
In the specific implementation, since the audio signal in each multimedia file can generally have high pitch and bass part,
It is easy to generate erroneous judgement if be compared using descant and double bass, meanwhile, the influence of noise is difficult to avoid.Using one section
Average value in time is compared more rationally, meanwhile, the interference of noise can be largely excluded, so that comparison result
It is more accurate.Playback terminal will calculated average value and preset vibration corresponding with current volume lattice number in step s 304
Width threshold value is compared, to provide the foundation that playback terminal is adjusted in step S306~S307.
If S306, the average value are greater than the amplitude threshold, reduce the gain of the current volume lattice number.
In the specific implementation, the specific implementation of the step can be found in a kind of volume adjustment side provided in an embodiment of the present invention
Step S207 in the second embodiment of method, details are not described herein.
If S307, the average value are less than the amplitude threshold, increase the gain of the current volume lattice number.
In the specific implementation, the specific implementation of the step can be found in a kind of volume adjustment side provided in an embodiment of the present invention
Step S208 in the second embodiment of method, details are not described herein.
In the embodiment of the present invention, playback terminal is with the electrical parameter and basis of the first sampling rate acquisition current audio signals
The electrical parameter calculates the amplitude of the current audio signals；Then, total time acquired in playback terminal record predetermined time period
Several and the collected current audio signals every time amplitudes, according to the amplitude of each collected current audio signals and
The total degree calculates the average value of the amplitude of the collected current audio signals in the predetermined time period；Playback terminal should
Average value and preset amplitude threshold corresponding with current volume lattice number are compared, if the average value is greater than the amplitude threshold
Value, then playback terminal reduces the gain of current volume lattice number, if the average value is less than the amplitude threshold, playback terminal increase is worked as
The gain of preceding volume lattice number.The embodiment of the present invention is compared with the average value in a period of time with preset amplitude threshold, is made
It is more accurate reasonable to obtain comparison result；The gain of the current volume lattice number is decreased or increased according to comparison result playback terminal, from
And the corresponding volume gain of volume adjustment can be set according to the parameter of audio file, promote user experience.
Referring to Fig. 4, being a kind of schematic structural diagram of the first embodiment of terminal provided in an embodiment of the present invention.Such as Fig. 4 institute
Show, which may include:
First acquisition unit 10, for acquiring the characteristic parameter of current audio signals.
In the specific implementation, the source of above-mentioned audio signal includes: song files, video file, network flow-medium, FM wide
It broadcasts, at least one of voice communication and video conference.Features described above parameter is to refer to quantization means audio signal sound spy
The design parameter of sign, characteristic parameter can be the amplitude of above-mentioned audio signal or the frequency of above-mentioned audio signal, and the present invention is real
Example is applied to be not construed as limiting.The duration of acquisition can be a period of time being switched to after next multimedia file, can also be with
During broadcasting for entire multimedia file.
Playback terminal is acquired in multimedia file by way of sampling first before playing specified multimedia file
The characteristic parameter of audio signal, sample mode therein can be analog-to-digital conversion (ADC, Analog-to-Digital
Converting) sampling or frequency sampling, the specific sample mode embodiment of the present invention are not construed as limiting.Above-mentioned first acquisition unit 10
Specific implementation can be found in the step in a kind of first embodiment of volume adjusting method provided in an embodiment of the present invention
S101, details are not described herein.
First comparing unit 20 is used for the characteristic parameter and preset parameter threshold corresponding with current volume lattice number
Value is compared.
In the specific implementation, the system sound volume of playback terminal has multiple ranks, each volume-level can respectively correspond one
Volume lattice number.After playback terminal starting, system can retain the volume lattice number being arranged when last time shutdown, if user is without again
Setting, then using the volume lattice number as current volume lattice number, if user resets system sound volume, after being arranged
Volume lattice number as current volume lattice number.Above-mentioned parameter threshold value refers to the reference for guaranteeing wave volume in a comfort standard
Value can use the value of system default, can also carry out customized setting in use by user.
Playback terminal carries out collected characteristic parameter and preset parameter threshold corresponding with current volume lattice number
Compare, to provide the foundation that playback terminal is adjusted.The specific implementation of above-mentioned first comparing unit 20 can be found in this hair
Step S102 in a kind of first embodiment for volume adjusting method that bright embodiment provides, details are not described herein.
It adjusts unit 30 and adjusts the current volume lattice number for the comparison result according to first comparing unit 20
Gain.
In the specific implementation, every lattice volume of system all corresponds to the gain of a default after playback terminal starting.It plays eventually
End is according to by collected characteristic parameter and preset compared with the corresponding parameter threshold of current volume lattice number is compared
As a result the gain of above-mentioned current volume lattice number is automatically regulated, so that volume remains at use before and after switching multi-media file
In the range of family is comfortable on.The specific implementation of above-mentioned adjusting unit 30 can be found in a kind of sound provided in an embodiment of the present invention
Step S103 in the first embodiment of amount adjustment method, details are not described herein.
In the embodiment of the present invention, the first acquisition unit 10 acquires the characteristic parameter of current audio signals, relatively more single by first
Member 20 is by the characteristic parameter of the collected current audio signals of the first acquisition unit 10 and preset opposite with current volume lattice number
The parameter threshold answered is compared；According to comparison result, the gain that unit 30 adjusts the current volume lattice number is adjusted, so as to
The corresponding volume gain of volume adjustment is set according to the parameter of audio file, promotes user experience.
Referring to Fig. 5, being a kind of schematic structural diagram of the second embodiment of terminal provided in an embodiment of the present invention.Such as Fig. 5 institute
Show, which may include:
Setting unit 40, for the corresponding parameter threshold of every lattice volume to be arranged, the parameter threshold includes amplitude threshold
At least one of with frequency threshold.
In the specific implementation, the system sound volume of playback terminal has multiple ranks, each volume-level can respectively correspond one
Volume lattice number.Above-mentioned parameter threshold value refers to the reference point for guaranteeing wave volume in a comfort standard, can be silent using system
The value recognized can also carry out customized setting by user in use.The parameter threshold set is stored in playback terminal
Memory in for it is subsequent relatively use, above-mentioned parameter threshold value includes at least one of amplitude threshold and frequency threshold.It is above-mentioned
The specific implementation of setting unit 40 can be found in a kind of second embodiment of volume adjusting method provided in an embodiment of the present invention
In step S201, details are not described herein.
Storage unit 50, the corresponding parameter threshold of every lattice volume being arranged for storing the setting unit 40.
In the specific implementation, the specific implementation of said memory cells 50 can be found in a kind of sound provided in an embodiment of the present invention
Step S201 in the second embodiment of amount adjustment method, details are not described herein.
First acquisition unit 10, for acquiring the characteristic parameter of current audio signals, the characteristic parameter includes described works as
At least one of the amplitude of preceding audio signal and the frequency of the current audio signals.
In the specific implementation, the source of above-mentioned audio signal includes: song files, video file, network flow-medium, FM wide
It broadcasts, at least one of voice communication and video conference.Features described above parameter is to refer to quantization means audio signal sound spy
The design parameter of sign, characteristic parameter can be the amplitude of above-mentioned audio signal or the frequency of above-mentioned audio signal, and the present invention is real
Example is applied to be not construed as limiting.The duration of acquisition can be a period of time being switched to after next multimedia file, can also be with
During broadcasting for entire multimedia file.
Playback terminal is acquired in multimedia file by way of sampling first before playing specified multimedia file
The characteristic parameter of audio signal, sample mode therein can be analog-to-digital conversion (ADC, Analog-to-Digital
Converting) sampling or frequency sampling, the specific sample mode embodiment of the present invention are not construed as limiting.Above-mentioned first acquisition unit 10
Specific implementation can be found in the step in a kind of second embodiment of volume adjusting method provided in an embodiment of the present invention
S202, details are not described herein.
First comparing unit 20 is used for the characteristic parameter and preset parameter threshold corresponding with current volume lattice number
Value is compared.
First comparing unit 20 can specifically include:
First computing unit 201, for calculating the feature of the collected current audio signals in predetermined time period
The average value of parameter.
In the specific implementation, above-mentioned predetermined time period can be 3 seconds, 5 seconds or 10 seconds etc., the specific duration embodiment of the present invention
It is not construed as limiting.The characteristic parameter of playback terminal above-mentioned current audio signals of continuous acquisition in preset time span, has acquired
Bi Hou calculates the average value of the characteristic parameter of collected above-mentioned current audio signals in above-mentioned predetermined time period.Above-mentioned
The specific implementation of one computing unit 201 can be found in a kind of the second implementation of volume adjusting method provided in an embodiment of the present invention
Step S203 in example, details are not described herein.
Second comparing unit 202 is used for the average value and preset parameter threshold corresponding with current volume lattice number
Value is compared.
In the specific implementation, since the audio signal in each multimedia file can generally have high pitch (or high frequency) and low
Sound (or low frequency) part, if being compared using descant (or highest frequency) and double bass (or low-limit frequency) and being easy to produce
Raw erroneous judgement, meanwhile, the influence of noise is difficult to avoid.It is compared more rationally using the average value in a period of time, meanwhile, energy
The interference for largely excluding noise, so that comparison result is more accurate.Playback terminal is by calculated average value and sets
The parameter threshold corresponding with current volume lattice number set is compared.The specific implementation of above-mentioned second comparing unit 202
It can be found in the step S204 in a kind of second embodiment of volume adjusting method provided in an embodiment of the present invention, it is no longer superfluous herein
It states.
Judging unit 60, for judging whether the characteristic parameter includes the amplitude of the current audio signals and be used for
Judge the characteristic parameter whether include the current audio signals frequency.
It adjusts unit 30 and adjusts the current volume lattice number for the comparison result according to second comparing unit 202
Gain.
The adjusting unit 30 can specifically include:
Reduction unit 301 is that the average value is greater than the vibration for the comparison result in second comparing unit 202
When width threshold value, reduce the gain of the current volume lattice number and for being in the comparison result of second comparing unit 202
When the average value is greater than the frequency threshold, reduce the gain of the current volume lattice number.
In the specific implementation, showing present multimedia when playback terminal judges that above-mentioned average value is greater than above-mentioned amplitude threshold
The acoustic amplitudes of file sound intermediate frequency signal itself are bigger than normal, and sound is higher when causing directly to play out, and can damage the hearing of user,
So that user feels uncomfortable, at this point, playback terminal can reduce the corresponding gain of current volume lattice number automatically, so that actually broadcasting
The sound size released meets the habit of user.
Specific gain adjustment scheme is as shown in table 1 in the embodiment of the present invention:
Table 1
| Volume lattice number | Gain reduces | Default gain | Gain increases |
| One | 1dB | 3dB | 5dB |
| Two | 3dB | 5dB | 7dB |
| Three | 6dB | 8dB | 10dB |
| Four | 10dB | 12dB | 14dB |
| Five | 15dB | 17dB | 19dB |
For example, the volume lattice number of playback terminal shares five lattice by taking song A as an example, max volume is five lattice, minimum sound
Amount is zero lattice, and it is three lattice that volume lattice number is arranged after starting, i.e., current volume lattice number is three lattice, the corresponding default of current volume lattice number
Gain is 8dB, and song A is artificial when recording to increase several dB (volume is bigger than normal when broadcasting), with current volume lattice number
Corresponding amplitude threshold is set as 500mV, and above-mentioned predetermined time period is set as 5 seconds, and the minimum resolution for adjusting gain is
1dB.Before song A is played and comes out, playback terminal calculates the average value of the amplitude of collected song A in 5 seconds first, knot
Fruit is 600mV, and the average value 600mV of the amplitude of song A is greater than above-mentioned amplitude threshold corresponding with current volume lattice number at this time
500mV, then according to table 1, the corresponding gain of current volume lattice number is reduced to 6dB by default gain 8dB by playback terminal, after adjusting
Playback terminal again plays back song A, and the sense of hearing that sound at this time just meets user is got used to.Current volume lattice number is corresponding
Gain 6dB is reduced to by 8dB can be sequentially reduced using 1dB as step pitch and realize, can also directly reduce 2dB to realize, tool
The body implementation embodiment of the present invention is not construed as limiting.The specific implementation of above-mentioned reduction unit 301 can be found in implementation of the present invention
Step S207 in a kind of second embodiment for volume adjusting method that example provides, details are not described herein.
Increasing unit 302 is that the average value is less than the vibration for the comparison result in second comparing unit 202
When width threshold value, increase the gain of the current volume lattice number and for being in the comparison result of second comparing unit 202
When the average value is less than the frequency threshold, increase the gain of the current volume lattice number.
In the specific implementation, showing present multimedia when playback terminal judges that above-mentioned average value is less than above-mentioned amplitude threshold
The acoustic amplitudes of file sound intermediate frequency signal itself are less than normal, and sound is relatively low when causing directly to play out, and can user be listened less
It is clear, at this point, playback terminal can be automatically increased the corresponding gain of current volume lattice number until above-mentioned current volume lattice number is corresponding
Gain is equal to the corresponding gain of above-mentioned amplitude threshold, so that the sound size that actual play comes out meets the habit of user.
For example, the volume lattice number of playback terminal shares five lattice by taking song B as an example, max volume is five lattice, minimum sound
Amount is zero lattice, and it is three lattice that volume lattice number is arranged after starting, i.e., current volume lattice number is three lattice, the corresponding default of current volume lattice number
Gain is 8dB, and song B is artificial when recording to reduce several dB (volume is less than normal when broadcasting), with current volume lattice number
Corresponding amplitude threshold is set as 500mV, and above-mentioned predetermined time period is set as 5 seconds, and the minimum resolution for adjusting gain is
1dB.Before song B is played and comes out, playback terminal calculates the average value of the amplitude of collected song B in 5 seconds first, knot
Fruit is 400mV, and the average value 400mV of the amplitude of song B is less than above-mentioned amplitude threshold corresponding with current volume lattice number at this time
500mV, then according to table 1, the corresponding gain of current volume lattice number is increased to 10dB by default gain 8dB by playback terminal, is adjusted
Playback terminal again plays back song B afterwards, and the sense of hearing that sound at this time just meets user is got used to.By current volume lattice number pair
The gain answered, which by 8dB is increased to 10dB and can be sequentially increased using 1dB as step pitch, to be realized, can also directly increase 2dB to realize,
The specific implementation embodiment of the present invention is not construed as limiting.The specific implementation of above-mentioned increasing unit 302 can be found in of the invention real
The step S208 in a kind of second embodiment of volume adjusting method of example offer is applied, details are not described herein.
In the embodiment of the present invention, setting unit 40 is arranged the corresponding parameter threshold of every lattice volume and first by storage unit
50 save；When first acquisition unit 10 acquires the characteristic parameter of current audio signals and calculates default by the first computing unit 201
Between in length the characteristic parameter of the collected current audio signals average value；Then, this is averaged by the second comparing unit 202
Value and preset parameter threshold corresponding with current volume lattice number are compared；Whether judging unit 60 judges this feature parameter
The frequency of amplitude or current audio signals including current audio signals；When the judging result of judging unit 60 is this feature parameter
When the frequency of amplitude or current audio signals including current audio signals, if the average value is greater than the parameter threshold, reduce
Unit 301 reduces the gain of current volume lattice number, if the average value is less than the parameter threshold, increasing unit 302 increases currently
The gain of volume lattice number.The embodiment of the present invention allows the customized setting of user parameter threshold corresponding with every lattice volume, improves
The flexibility of playback terminal；It is compared with the average value in a period of time with preset parameter threshold, so that comparison result
It is more accurate reasonable；The gain of the current volume lattice number is decreased or increased, according to comparison result playback terminal so as to basis
The parameter of audio file sets the corresponding volume gain of volume adjustment, promotes user experience.
Referring to Fig. 6, being a kind of 3rd embodiment structural schematic diagram of terminal provided in an embodiment of the present invention.Such as Fig. 6 institute
Show, in the case where features described above parameter includes the amplitude of current audio signals, which may include:
First acquisition unit 10, for acquiring the amplitude of current audio signals.
First acquisition unit 10 can specifically include:
Second acquisition unit 101, for the electrical parameter of the first sampling rate acquisition current audio signals.
In the specific implementation, the source of above-mentioned audio signal includes: song files, video file, network flow-medium, FM wide
It broadcasts, at least one of voice communication and video conference.Above-mentioned electrical parameter include in current value, voltage value and performance number extremely
Few one kind.Playback terminal is by analog-to-digital conversion (ADC, Analog-to-Digital Converting) with the first sampling rate pair
Above-mentioned current audio signals are sampled, and the electrical parameter of above-mentioned current audio signals is obtained.Wherein, above-mentioned first sampling rate
It can be 8KHz, 11.025KHz, 22.05KHz, 44.1KHz, 48KHz or 96KHz etc., specific sampling rate is according to practical application
Depending on, the embodiment of the present invention is not construed as limiting.The specific implementation of above-mentioned second acquisition unit 101 can be found in the embodiment of the present invention
Step S301 in a kind of 3rd embodiment of the volume adjusting method provided, details are not described herein.
Third computing unit 102, for calculating the amplitude of the current audio signals according to the electrical parameter.
In the specific implementation, if above-mentioned electrical parameter includes current value I's, the resistance value R of sampling resistor and above-mentioned current value I
Product R*I is the amplitude of above-mentioned current audio signals；If above-mentioned electrical parameter includes voltage value U, above-mentioned voltage value U is
The amplitude of above-mentioned current audio signals；If above-mentioned electrical parameter includes performance number P, the resistance of performance number P and above-mentioned sampling resistor
The square root of value R productThe amplitude of as above-mentioned current audio signals.The specific reality of above-mentioned third computing unit 102
Existing mode can be found in the step S302 in a kind of 3rd embodiment of volume adjusting method provided in an embodiment of the present invention, herein not
It repeats again.
First computing unit 201, for calculating the amplitude of the collected current audio signals in predetermined time period
Average value.
First computing unit 201 can specifically include:
Recording unit 2011, for recording the total degree acquired in predetermined time period and collected every time described working as
The amplitude of preceding audio signal.
In the specific implementation, the total degree n and the current sound of all sampled points that are acquired in playback terminal record predetermined time period t
Amplitude A1, A2, the A3 of frequency signal ..., An.The specific implementation of above-mentioned recording unit 2011 can be found in implementation of the present invention
Step S303 in a kind of 3rd embodiment for volume adjusting method that example provides, details are not described herein.
Second computing unit 2012 described collected every time described is worked as what is recorded according to the recording unit 2011
The amplitude of preceding audio signal and the total degree calculate the collected current audio signals in the predetermined time period
The average value of amplitude.
In the specific implementation, playback terminal believes all sampled point present videos acquired in the predetermined time period t of record
Number amplitude A1, A2, A3 ..., An sumsThen amplitude is found out
Average valueThe specific implementation of above-mentioned second computing unit 2012 can be found in provided in an embodiment of the present invention
A kind of step S304 in the 3rd embodiment of volume adjusting method, details are not described herein.
Second comparing unit 202 is used for the average value and preset amplitude threshold corresponding with current volume lattice number
Value is compared.
In the specific implementation, since the audio signal in each multimedia file can generally have high pitch and bass part,
It is easy to generate erroneous judgement if be compared using descant and double bass, meanwhile, the influence of noise is difficult to avoid.Using one section
Average value in time is compared more rationally, meanwhile, the interference of noise can be largely excluded, so that comparison result
It is more accurate.Playback terminal compares calculated average value and preset amplitude threshold corresponding with current volume lattice number
Compared with.The specific implementation of above-mentioned second comparing unit 202 can be found in a kind of volume adjusting method provided in an embodiment of the present invention
3rd embodiment in step S305, details are not described herein.
It adjusts unit 30 and adjusts the current volume lattice number for the comparison result according to second comparing unit 202
Gain.
The adjusting unit 30 can specifically include:
Reduction unit 301 is that the average value is greater than the vibration for the comparison result in second comparing unit 202
When width threshold value, reduce the gain of the current volume lattice number.
In the specific implementation, showing present multimedia when playback terminal judges that above-mentioned average value is greater than above-mentioned amplitude threshold
The acoustic amplitudes of file sound intermediate frequency signal itself are bigger than normal, and sound is higher when causing directly to play out, and can damage the hearing of user,
So that user feels uncomfortable, at this point, playback terminal can reduce the corresponding gain of current volume lattice number automatically, so that actually broadcasting
The sound size released meets the habit of user.
Specific gain adjustment scheme is as shown in table 1 in the embodiment of the present invention:
Table 1
| Volume lattice number | Gain reduces | Default gain | Gain increases |
| One | 1dB | 3dB | 5dB |
| Two | 3dB | 5dB | 7dB |
| Three | 6dB | 8dB | 10dB |
| Four | 10dB | 12dB | 14dB |
| Five | 15dB | 17dB | 19dB |
For example, the volume lattice number of playback terminal shares five lattice by taking song A as an example, max volume is five lattice, minimum sound
Amount is zero lattice, and it is three lattice that volume lattice number is arranged after starting, i.e., current volume lattice number is three lattice, the corresponding default of current volume lattice number
Gain is 8dB, and song A is artificial when recording to increase several dB (volume is bigger than normal when broadcasting), with current volume lattice number
Corresponding amplitude threshold is set as 500mV, and above-mentioned predetermined time period is set as 5 seconds, and the minimum resolution for adjusting gain is
1dB.Before song A is played and comes out, playback terminal calculates the average value of the amplitude of collected song A in 5 seconds first, knot
Fruit is 600mV, and the average value 600mV of the amplitude of song A is greater than above-mentioned amplitude threshold corresponding with current volume lattice number at this time
500mV, then according to table 1, the corresponding gain of current volume lattice number is reduced to 6dB by default gain 8dB by playback terminal, after adjusting
Playback terminal again plays back song A, and the sense of hearing that sound at this time just meets user is got used to.Current volume lattice number is corresponding
Gain 6dB is reduced to by 8dB can be sequentially reduced using 1dB as step pitch and realize, can also directly reduce 2dB to realize, tool
The body implementation embodiment of the present invention is not construed as limiting.The specific implementation of above-mentioned reduction unit 301 can be found in implementation of the present invention
Step S207 in a kind of second embodiment for volume adjusting method that example provides, details are not described herein.
Increasing unit 302 is that the average value is less than the vibration for the comparison result in second comparing unit 202
When width threshold value, increase the gain of the current volume lattice number.
In the specific implementation, showing present multimedia when playback terminal judges that above-mentioned average value is less than above-mentioned amplitude threshold
The acoustic amplitudes of file sound intermediate frequency signal itself are less than normal, and sound is relatively low when causing directly to play out, and can user be listened less
It is clear, at this point, playback terminal can be automatically increased the corresponding gain of current volume lattice number until above-mentioned current volume lattice number is corresponding
Gain is equal to the corresponding gain of above-mentioned amplitude threshold, so that the sound size that actual play comes out meets the habit of user.
For example, the volume lattice number of playback terminal shares five lattice by taking song B as an example, max volume is five lattice, minimum sound
Amount is zero lattice, and it is three lattice that volume lattice number is arranged after starting, i.e., current volume lattice number is three lattice, the corresponding default of current volume lattice number
Gain is 8dB, and song B is artificial when recording to reduce several dB (volume is less than normal when broadcasting), with current volume lattice number
Corresponding amplitude threshold is set as 500mV, and above-mentioned predetermined time period is set as 5 seconds, and the minimum resolution for adjusting gain is
1dB.Before song B is played and comes out, playback terminal calculates the average value of the amplitude of collected song B in 5 seconds first, knot
Fruit is 400mV, and the average value 400mV of the amplitude of song B is less than above-mentioned amplitude threshold corresponding with current volume lattice number at this time
500mV, then according to table 1, the corresponding gain of current volume lattice number is increased to 10dB by default gain 8dB by playback terminal, is adjusted
Playback terminal again plays back song B afterwards, and the sense of hearing that sound at this time just meets user is got used to.By current volume lattice number pair
The gain answered, which by 8dB is increased to 10dB and can be sequentially increased using 1dB as step pitch, to be realized, can also directly increase 2dB to realize,
The specific implementation embodiment of the present invention is not construed as limiting.The specific implementation of above-mentioned increasing unit 302 can be found in of the invention real
The step S208 in a kind of second embodiment of volume adjusting method of example offer is applied, details are not described herein.
In the embodiment of the present invention, the second acquisition unit 101 is joined with the electricity of the first sampling rate acquisition current audio signals
Number and the amplitude for calculating the current audio signals according to the electrical parameter by third computing unit 102；Then, recording unit 2011
The total degree acquired in predetermined time period and the every time amplitude of the collected current audio signals are recorded, according to adopting every time
The amplitude of the current audio signals collected and the total degree, the second computing unit 2012 calculate acquisition in the predetermined time period
The average value of the amplitude of the current audio signals arrived；Second comparing unit 202 is by the average value and preset and current volume
The corresponding amplitude threshold of lattice number is compared, if the average value is greater than the amplitude threshold, reduction unit 301 reduces current sound
The gain of lattice number is measured, if the average value is less than the amplitude threshold, increasing unit 302 increases the gain of current volume lattice number.This
Inventive embodiments are compared with the average value in a period of time with preset amplitude threshold, so that comparison result more accurately closes
Reason；The gain of the current volume lattice number is decreased or increased, according to comparison result playback terminal so as to according to audio file
Parameter sets the corresponding volume gain of volume adjustment, promotes user experience.
Referring to Fig. 7, being a kind of fourth embodiment structural schematic diagram of terminal provided in an embodiment of the present invention.Such as Fig. 7 institute
Show, which may include: at least one input equipment 1000；At least one output equipment 2000；At least one processor
3000, such as CPU；With memory 4000, above-mentioned input equipment 1000, output equipment 2000, processor 3000 and memory
4000 are connected by bus 5000.
Wherein, signal input/acquisition channel of above-mentioned input equipment 1000 concretely terminal, for acquiring input signal
Parameters.
The sound play device of above-mentioned output equipment 2000 concretely terminal, including loudspeaker or loudspeaker, for playing
Audio signal in multimedia file.
Above-mentioned memory 4000 can be high speed RAM memory, can also be non-labile memory (non-volatile
), such as magnetic disk storage memory.Above-mentioned memory 4000 is used to store a set of program code, above-mentioned input equipment 1000, defeated
Equipment 2000 and processor 3000 are used to call the program code stored in memory 4000 out, perform the following operations:
Above-mentioned output equipment 2000, for after the gain that processor 3000 adjusts current volume lattice number, audio to be believed
It number plays back.
Above-mentioned input equipment 1000, for acquiring the characteristic parameter of current audio signals.
Above-mentioned processor 3000 is used for the collected characteristic parameter of input equipment 1000 and preset and current volume lattice
The corresponding parameter threshold of number is compared and according to comparison result, adjusts the gain of the current volume lattice number.
In some possible embodiments, above-mentioned input equipment 1000 also particularly useful for:
With the electrical parameter of the first sampling rate acquisition current audio signals, and work as according to electrical parameter calculating
The amplitude of preceding audio signal.
In some possible embodiments, above-mentioned processor 3000 also particularly useful for:
It calculates in predetermined time period by the characteristic parameter of the collected current audio signals of input equipment 1000
The average value and preset parameter threshold corresponding with current volume lattice number are compared by average value.It is tied according to comparing
Fruit adjusts the gain of the current volume lattice number.
In some feasible implementations, above-mentioned processor 3000 also particularly useful for:
Judge whether the characteristic parameter includes the amplitude of the current audio signals or the frequency of the current audio signals
Rate, if so, according to the ratio for being compared the average value and the preset and corresponding parameter threshold of current volume lattice number
Compared with as a result, adjusting the gain of the current volume lattice number.
In some feasible implementations, above-mentioned processor 3000 also particularly useful for:
Parameter threshold corresponding with every lattice volume is set, and parameter threshold corresponding with every lattice volume is stored in and is deposited
In reservoir 4000.
In the specific implementation, input equipment 1000 described in the embodiment of the present invention, output equipment 2000 and processor
3000 first embodiments, second embodiment and third that a kind of volume adjusting method provided in an embodiment of the present invention can be performed are implemented
First embodiment, the second implementation of a kind of terminal provided in an embodiment of the present invention also can be performed in implementation described in example
The implementation of terminal described in example and 3rd embodiment, details are not described herein.
Module or submodule in all embodiments of the invention can pass through universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit), or pass through ASIC (Application Specific Integrated
Circuit, specific integrated circuit) Lai Shixian.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Unit in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, abbreviation RAM) etc..
A kind of volume adjusting method is provided for the embodiments of the invention above to be described in detail, it is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand originally
The method and its core concept of invention；At the same time, for those skilled in the art, according to the thought of the present invention, specific
There will be changes in embodiment and application range, in conclusion the content of the present specification should not be construed as to of the invention
Limitation.
Claims (8)
1. a kind of volume adjusting method characterized by comprising
Before playing specified multimedia file, the current audio signals for including in the specified multimedia file are acquired
Characteristic parameter；
The characteristic parameter and preset parameter threshold corresponding with current volume lattice number are compared；
According to comparison result, the gain of the current volume lattice number is adjusted；
Wherein, the characteristic parameter include in the amplitude of the current audio signals and the frequency of the current audio signals extremely
Few one kind；
Wherein, described to be compared the characteristic parameter with preset parameter threshold corresponding with current volume lattice number, packet
It includes:
Calculate the average value of the characteristic parameter of the collected current audio signals in predetermined time period；
The average value and preset parameter threshold corresponding with current volume lattice number are compared.
2. the method according to claim 1, wherein it is described acquisition current audio signals characteristic parameter before,
Further include:
The corresponding parameter threshold of every lattice volume is set, and the parameter threshold includes at least one in amplitude threshold and frequency threshold
Kind；
Store the corresponding parameter threshold of every lattice volume.
3. the method according to claim 1, wherein if the characteristic parameter includes the current audio signals
Amplitude, then it is described according to comparison result, adjust the gain of the current volume lattice number, comprising:
When the average value be greater than the amplitude threshold, then reduce the gain of the current volume lattice number；
When the average value be less than the amplitude threshold, then increase the gain of the current volume lattice number.
4. the method according to claim 1, wherein if the characteristic parameter includes the current audio signals
Frequency, then it is described according to comparison result, adjust the gain of the current volume lattice number, comprising:
If the average value is greater than the frequency threshold, reduce the gain of the current volume lattice number；
If the average value is less than the frequency threshold, increase the gain of the current volume lattice number.
5. the method according to claim 1, wherein working as described in collected in the calculating predetermined time period
The average value of the characteristic parameter of preceding audio signal, comprising:
Record the total degree n acquired in predetermined time period and the every time characteristic parameter of the collected current audio signals
X1,X2,X3,……,Xn；
When calculating described default according to the characteristic parameter and the total degree of the collected current audio signals every time
Between in length the characteristic parameter of the collected current audio signals average value
6. according to the method described in claim 3, it is characterized in that, if the characteristic parameter includes the current audio signals
Amplitude, then it is described acquisition current audio signals characteristic parameter, comprising:
With the electrical parameter of the first sampling rate acquisition current audio signals；
The amplitude of the current audio signals is calculated according to the electrical parameter.
7. according to the method described in claim 6, it is characterized in that,
The electrical parameter includes at least one of current value, voltage value and performance number.
8. method according to any one of claims 1 to 7, which is characterized in that
The source of the current audio signals include: song files, video file, network flow-medium, FM broadcast, voice communication and
At least one of video conference.
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| CN106210247A (en) * | 2015-05-06 | 2016-12-07 | 小米科技有限责任公司 | Terminal control method and device |
| CN106201449A (en) * | 2015-05-06 | 2016-12-07 | 小米科技有限责任公司 | Terminal control method and device |
| CN106887233B (en) * | 2015-12-15 | 2020-01-24 | 广州酷狗计算机科技有限公司 | Audio data processing method and system |
| CN106888418A (en) * | 2015-12-15 | 2017-06-23 | 联想移动通信软件（武汉）有限公司 | A kind of method for controlling volume and device |
| CN105553435A (en) * | 2015-12-17 | 2016-05-04 | 青岛海信电器股份有限公司 | Method and apparatus for presetting audio gain curve |
| CN105578272B (en) * | 2015-12-17 | 2019-06-18 | 青岛海信电器股份有限公司 | A kind of audio gain Automatic adjustment method and device |
| CN105933557A (en) * | 2016-04-25 | 2016-09-07 | 四川联友电讯技术有限公司 | Volume intelligent adjusting method for conference participants in synchronous voice conference and volume intelligent adjusting system thereof |
| CN108109630B (en) * | 2016-11-23 | 2022-01-25 | 中兴通讯股份有限公司 | Audio processing method and device and media server |
| CN107479851B (en) * | 2017-08-18 | 2019-07-16 | Oppo广东移动通信有限公司 | Volume adjusting method, device, terminal device and storage medium |
| WO2019033438A1 (en) * | 2017-08-18 | 2019-02-21 | 广东欧珀移动通信有限公司 | Audio signal adjustment method and device, storage medium, and terminal |
| CN107526570B (en) * | 2017-08-18 | 2020-01-14 | Oppo广东移动通信有限公司 | Volume adjusting method and device, terminal equipment and storage medium |
| CN107506168B (en) * | 2017-08-18 | 2022-06-14 | Oppo广东移动通信有限公司 | Volume adjusting method and device, terminal equipment and storage medium |
| CN107479852B (en) * | 2017-08-18 | 2019-08-30 | Oppo广东移动通信有限公司 | Volume adjusting method, device, terminal device and storage medium |
| CN108041689A (en) * | 2018-02-14 | 2018-05-18 | 深圳市研桥科技有限公司 | Electronic cigarette igniter and its control method |
| CN108540904B (en) * | 2018-04-24 | 2020-10-09 | 深圳市战音科技有限公司 | Method and device for improving sound effect of sound box |
| CN109217834B (en) * | 2018-10-19 | 2022-06-21 | 歌尔科技有限公司 | Gain adjustment method, audio device and readable storage medium |
| CN109729382B (en) * | 2018-12-19 | 2021-06-18 | 北京达佳互联信息技术有限公司 | Audio and video data volume processing method and device, server and electronic equipment |
| CN110457002B (en) * | 2019-07-03 | 2023-07-25 | 平安科技（深圳）有限公司 | Multimedia file processing method, device and computer storage medium |
| CN113824835A (en) * | 2021-10-25 | 2021-12-21 | Oppo广东移动通信有限公司 | Volume control method and device, electronic equipment and storage medium |
| CN114520949B (en) * | 2022-02-10 | 2024-05-03 | 维沃移动通信有限公司 | Volume control method, device, equipment and medium |
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| CN101119106B (en) * | 2007-07-12 | 2010-09-22 | 深圳市融创天下科技发展有限公司 | Output volume automatic regulation method of media player |
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