CN102724462A - Volume adjusting method and device - Google Patents
Volume adjusting method and device Download PDFInfo
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- CN102724462A CN102724462A CN2012101800077A CN201210180007A CN102724462A CN 102724462 A CN102724462 A CN 102724462A CN 2012101800077 A CN2012101800077 A CN 2012101800077A CN 201210180007 A CN201210180007 A CN 201210180007A CN 102724462 A CN102724462 A CN 102724462A
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Abstract
The invention is applicable to the field of television technologies, and provides a volume adjusting method and device. The method comprises the following steps of: when the situation that channels are changed or the contents of TV programs are changed is monitored, according to the volume output value of a current audio frequency subjected to audio decoding, calculating a current volume output reference value; according to a preset reference value of volume adjusting and the current volume output reference value, calculating a volume adjusting coefficient; and according to the volume adjusting coefficient, adjusting the volume output value of the current audio frequency subjected to audio decoding into an actual controlled volume output value. According to the invention, when the situation that the channels are changed or the contents of the TV programs are changed is monitored, the volume adjusting device can adjust the volume value automatically through the preset reference value of volume adjusting.
Description
Technical field
The invention belongs to TV technology, relate in particular to a kind of method, device of regulating volume.
Background technology
Along with the pressure of DTV is carried out; Use the frequency of TV set-top box increasingly high in the family, but when the user watches DTV, for each television channel; All need readjust volume one time; Especially when TV programme were switched, television sound volume was suddenly big or suddenly small, brings a lot of inconvenience to the user.
At present, regulating the method for DTV volume, mainly is to regulate master volume and secondary volume; This mode can solve user's inconsistent problem of volume when changing platform, but play same television channel in adjustment process; In the process that content of TV program is changed; When changing such as TV play and advertisement, the sound of TV output still can be suddenly big or suddenly small, is unfavorable for that the user watches TV programme.
Summary of the invention
The embodiment of the invention provides a kind of method, device of regulating volume; Be intended to solve the method for the adjusting volume that prior art provides; In the process of switching TV channel or content of TV program replacing; The sound of TV output still can be suddenly big or suddenly small, is unfavorable for that the user watches the problem of TV programme.
On the one hand, a kind of method of regulating volume is provided, said method comprises:
When monitoring the change of channel alteration or content of TV program, the volume output valve according to through the current audio frequency behind the audio decoder calculates current volume output reference value;
Reference data value and said current volume output reference value according to preset volume is regulated calculate the volume adjustment factor;
The volume output valve that to pass through the current audio frequency behind the audio decoder according to described volume adjustment factor is adjusted to actual controlled volume output valve.
On the other hand, a kind of device of regulating volume is provided, said device comprises:
The current volume acquiring unit is used for when monitoring channel alteration or content of TV program when change, and the volume output valve according to carry out the current audio frequency behind the audio decoder through the audio decoder chip calculates current volume output reference value;
The adjustment factor acquiring unit is used for reference data value and said current volume output reference value according to preset volume adjusting, calculates the volume adjustment factor;
Sound volume regulation unit is used for will passing through the volume output valve that the audio decoder chip carries out the current audio frequency behind the audio decoder according to described volume adjustment factor and is adjusted to actual controlled volume output valve.
In embodiments of the present invention, the device of regulating volume only needs the reference data value automatic regulating volume value according to preset volume adjusting, can let the user that a comfortable acoustic environments is arranged.No matter and user's switching channels; Still change content of TV program at same channel; The device of regulating volume all can solve the suddenly big or suddenly small problem of sound in content of TV program replacing or switching TV channel according to the reference data value automatic regulating volume value of preset volume adjusting.
Description of drawings
Fig. 1 is the realization flow figure of the method for the adjusting volume that provides of the embodiment of the invention one;
Fig. 2 is the realization flow figure of the method for the adjusting volume that provides of the embodiment of the invention two;
Fig. 3 is the realization flow figure of the method for the adjusting volume that provides of the embodiment of the invention three;
Fig. 4 is the structured flowchart of the device of the adjusting volume that provides of the embodiment of the invention four;
Fig. 5 is the structured flowchart of the device of the adjusting volume that provides of the embodiment of the invention five.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In embodiments of the present invention; The user only need adjust the volume output valve of once passing through the audio frequency behind the audio decoder when watching TV programme; Generate the reference data value OutputVol that volume is regulated according to said volume value; Afterwards, when monitoring the replacing of switching channels or content of TV program, the device of regulating volume just can be through the reference data value automatic regulating volume value of this volume adjusting.
Below in conjunction with specific embodiment realization of the present invention is described in detail:
Embodiment one
Fig. 1 shows the realization flow of the method for the adjusting volume that the embodiment of the invention one provides; This method can be applied in the device of regulating volume; Wherein, the device of this adjusting volume can be built in the DTV, also can be built in and can carry out in the audio/video player of voice playing; The present invention is that example describes with the DTV, and details are as follows:
In step S101, when monitoring the change of channel alteration or content of TV program, the volume output valve according to through the current audio frequency behind the audio decoder calculates current volume output reference value OutputVol '.
In the present embodiment; Whether whether switching channels has perhaps carried out the content of TV program change to the device monitoring user of adjusting volume; If then, calculate current volume output reference value OutputVol ' according to volume output valve through the current audio frequency behind the audio decoder.Wherein, The volume output valve Vol ' of the current audio frequency behind the audio decoder is once passed through in each predefined sampling period calculating; Double counting M time, M is natural number for preset number of times; Calculate the mean value of M output valve Vol ', with the volume output mean value OutputVol ' of said mean value as current source of sound.The wherein predefined sampling period can be 100 milliseconds to 800 milliseconds, and M is 3 to 10.
Is 5 at this with M; The predefined sampling period is 500 milliseconds and describes for example: the device of regulating volume calculates the volume output valve Vol ' that once passes through the current audio frequency behind the audio decoder each second; Calculate 5 times; Obtain output valve Vol1 ', Vol2 ', Vol3 ', Vol4 ' and Vol5 ' respectively 5 times; And then obtain the mean value OutputVol ' of 5 output valves=(Vol1 '+Vol2 '+Vol3 '+Vol4 '+Vol5 ')/5, as current volume output reference value and storage, this moment in the predefined sampling time is 2.5 seconds with OutputVol '.
Concrete, regulate volume device can from the bag sign of TV program stream (Packet Iddentifier obtains digital TV TS information, several dot informations below having comprised in PID):
(1), the PID of digital television decoder through TS packet header just can find Program Association Table (Program Association Table, PAT), promptly PID is numbered the table of 0x0000;
(2) PAT has been provided to the pairing separately Program Map Table of each program (Program Map Table, PID PMT) that current TS comprised;
(3) PMT has pointed out the pairing video flowing of its described program, audio stream, reference time information (Program Clock Reference, PID PCR);
We are example with the video, since the PID of video place TS bag has been arranged, that just filters out the bag that PID equals this pid value in current TS stream, and these bags that filter out are arranged in regular turn, just can therefrom restore video flowing.
According to above-mentioned method, we just can obtain each assembly of a program respectively.Had that video-frequency basic flow, audio frequency flow basically, reference clock, DTV just can be decoded to program, selects to switch program according to the user.
Whether the device of regulating volume can come the current programme content of interpretation to change according to the information of PMT the inside, is TV programme or advertisement; Channel point according to user's selection; Search corresponding TS code stream pid information, find PAT, find PMT in the PAT the inside according to pid information; PMT has pointed out the PID of the pairing video flowing of its described program, audio stream, PCR, just can monitor the user according to these information and whether change channel.Whether the channel switching controls command detection user who can certainly monitoring user operation sends changes channel, does not limit here.
In step S102, reference data value OutputVol and said current volume output reference value OutputVol ' according to preset volume is regulated calculate volume adjustment factor Voladjust.
In the present embodiment, the formula of compute volume adjustment factor Voladjust is: Voladjust=(OutputVol/OutputVol ').Wherein, the reference data value OutputVol that preset volume is regulated is after the user carries out the volume adjustment, and the reference data value of calculating according to the relatively more suitable volume value of equipment output in the process of normal viewing TV programme.
The computational process of the corresponding above-mentioned current volume output reference value OutputVol ' of the calculating of said reference data value OutputVol is specially:
The output valve Vol of the voice data behind the audio decoder is once passed through in each predefined sampling period calculating; Double counting N time, N is natural number for preset number of times; Calculate the mean value of N output valve Vol, with the reference data value OutputVol of said mean value as the volume adjusting.Can preset the sampling time at this was 1 to 3 second.As being 2.5 seconds with the sampling time, N is 5 for example describes, and this moment in the preset sampling period is 500 milliseconds.The output valve Vol of the voice data behind the audio decoder is once passed through in 500 milliseconds of calculating of device of adjusting volume; Calculate 5 times; Obtain output valve Vol1, Vol2, Vol3, Vol4 and Vol5 respectively 5 times; And then obtain the mean value OutputVol=(Vol1+Vol2+Vol3+Vol4+Vol5)/5 of 5 output valves, reference data value and storage that OutputVol is regulated as volume.
In step S103, the volume output valve that will pass through the current audio frequency behind the audio decoder according to described volume adjustment factor is adjusted to actual controlled volume output valve.
In the present embodiment, said actual controlled volume output valve is calculated through the actual audio amplitude function according to volume output valve and said volume adjustment factor through the current audio frequency behind the audio decoder, and said actual audio amplitude function is:
Vol " '=Vol " * Voladjust, wherein Vol " be volume output valve through the current audio frequency behind the audio decoder, Voladjust is the volume adjustment factor, Vol " ' be the actual volume output valve.
Present embodiment, the device of regulating volume only needs the reference data value automatic regulating volume value according to preset volume adjusting, can let the user that a comfortable acoustic environments is arranged.No matter and user's switching channels; Still change content of TV program at same channel; The device of regulating volume all can solve the suddenly big or suddenly small problem of sound in content of TV program replacing or switching TV channel according to the reference data value automatic regulating volume value of preset volume adjusting.
Embodiment two
Fig. 2 shows the realization flow of the method for the adjusting volume that the embodiment of the invention two provides, and details are as follows:
In step S201, when monitoring after the user adjusts volume, and during the normal viewing TV programme, the actual output volume value of the equipment that obtains generates the reference data value OutputVol that volume is regulated according to said actual output volume value, and storage.The actual output volume value of said equipment refers to the drive signal amplitude value of loud speaker; The signal value that also can produce for the volume of volume sensor loud speaker output.
At equipment; When dispatching from the factory like TV; Said reference data value OutputVol is provided with default value in equipment, when the user is watching TV programme and after having adjusted volume, equipment is again according to the said reference data value OutputVol that is equipped with the adjusting of actual output volume value generation volume.
In the present embodiment, after the device of regulating volume is adjusted volume according to the user, adopt following method to generate the reference data value OutputVol that volume is regulated.
The volume output of current audio frequency comprises master volume and fine setting volume; Calculate the average output valve and the maximum output valve of said fine setting volume in sampling period (as 500 milliseconds) of setting earlier; Calculate the ratio between said average output valve and the maximum output valve again, and with the reference data value OutputVol of said ratio as the volume adjusting.It is following for instance: after the device of regulating volume sets the volume of voice playing according to the volume value of user's input; Current through the voice data exported behind the audio decoder according to Digital Signal Processing (Digital Signal Processing; DSP) the volume specification in the system is set to 0 and 1; 0 is minimum volume, and expression does not have voice output, and 1 is max volume.Such as; The digital information processing system of volume output valve according to 24bit calculated, maximum 1, corresponding dsp system calculated value is 0X7FFFFF (highest order is-symbol position); Got for 1 second (perhaps littler time) through the voice data behind the audio decoder; Calculate average output valve of volume and the ratio of maximum 0X7FFFFF in this 1 second, this value is the reference data value of volume adjusting, the i.e. canonical parameter of user's optimum volume.
In step S202, when monitoring the change of channel alteration or content of TV program, the volume output valve according to through the current audio frequency behind the audio decoder calculates current volume output reference value OutputVol '.
In the present embodiment, the process of this current volume output reference value OutputVol ' is consistent with the technical method of the reference data value OutputVol of present embodiment, but the sampling period is different.Promptly monitor user channel change or content of TV program after changing; The volume output of current audio frequency comprises master volume and fine setting volume; Calculate the average output valve and the maximum output valve of (as 500 milliseconds) said fine setting volume in the predefined sampling period earlier; Calculate the ratio between said average output valve and the maximum output valve again, and with said ratio as described current volume output reference value.
In step S203, reference data value OutputVol and said current volume output reference value OutputVol ' according to preset volume is regulated calculate volume adjustment factor Voladjust.
In step S204, the volume output valve that will pass through the current audio frequency behind the audio decoder according to described volume adjustment factor is adjusted to actual controlled volume output valve.
In the present embodiment, content that step S203-S204 carries out and the implementation of the step S102-S103 in the foregoing description one are similar, and details are referring to the description of the foregoing description one.
Present embodiment, the user only need watch TV programme, and after having adjusted volume, system obtains the volume value of equipment output under the best auditory effect state of user's setting, generates the reference data value OutputVol that volume is regulated according to said equipment output valve.Afterwards; When monitoring the change of channel alteration or content of TV program; The device of regulating volume just can be through the reference data value automatic regulating volume value of this volume adjusting; Can let the user have a comfortable acoustic environments to solve the suddenly big or suddenly small problem of sound in content of TV program replacing or switching TV channel, the most important thing is that the user only need adjust one time volume value when watching TV programme; Save prior art and need repeatedly import the trouble that volume value is regulated volume, improved user's experience effect greatly.
Embodiment three
Fig. 3 shows the realization flow of the method for the adjusting volume that the embodiment of the invention three provides, and details are as follows:
In step S301, be when watching TV programme when monitoring the user, the actual output volume value of the equipment that obtains generates the reference data value OutputVol that volume is regulated according to said actual output volume value, and storage.
In step S302, the volume output valve according to through the current audio frequency behind the audio decoder calculates current volume output reference value OutputVol '.
In step S303; When monitoring the change of channel alteration or content of TV program; Detect current volume output reference value, and whether the ratio of judging the reference data value that said current volume output reference value and preset volume are regulated is in preset threshold values scope, if not in preset threshold values scope; Execution in step S304 then, otherwise withdraw from.In this step, said detection current volume output reference value also can be provided with sense cycle, and current volume output reference value is carried out repeated detection, to improve accuracy in detection.
In embodiments of the present invention; When monitoring the replacing of switching channels or content of TV program; Detect current volume output reference value, and whether the ratio of judging the reference data value that said current volume output reference value and preset volume are regulated is in preset threshold values scope, if not in preset threshold values scope; Execution in step S303 then, otherwise withdraw from.In the present embodiment, the scope of said threshold values is 0.8～1.2.
In step S304, reference data value OutputVol and said current volume output reference value OutputVol ' according to preset volume is regulated calculate volume adjustment factor Voladjust.
In step S305, the volume output valve that will pass through the current audio frequency behind the audio decoder according to described volume adjustment factor is adjusted to actual controlled volume output valve.
In the present embodiment, step S102-S103 in the execution of step S304-S305 and the foregoing description one or the implementation of the step S203-S204 among the embodiment two are similar, and details repeat no more at this referring to the description of the foregoing description one.
In the present embodiment; When monitoring the change of channel alteration or content of TV program; Detect current volume output reference value, if the ratio of the reference data value OutputVol that said current volume output reference value OutputVol ' and preset volume are regulated not in preset threshold values scope, representes then that current volume not too is fit to the user; Then, the output volume of current audio frequency is regulated according to the volume adjustment factor that calculates.In addition in above-mentioned steps, under the prerequisite that does not influence audio sample, system can control loudspeaker temporary transient output sound not, perhaps from childhood to big gradual change output sound, the user is caused interference to prevent the sudden change output before volume controlled.
Embodiment four
Fig. 4 shows the concrete structure block diagram of the device of the adjusting volume that the embodiment of the invention three provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.In the present embodiment; The device of this adjustment volume can be the unit that is built in software unit, hardware cell or software and hardware combining in the TV; Also can be the unit that is built in software unit, hardware cell or software and hardware combining in the audio/video player, the device of this adjusting volume comprises: current volume acquiring unit 41, adjustment factor acquiring unit 42 and sound volume regulation unit 43.
Wherein, current volume acquiring unit 41 is used for when monitoring channel alteration or content of TV program when change, and the volume output valve according to carry out the current audio frequency behind the audio decoder through the audio decoder chip calculates current volume output reference value;
Adjustment factor acquiring unit 42 is used for reference data value and said current volume output reference value according to preset volume adjusting, calculates the volume adjustment factor;
Sound volume regulation unit 43 is used for will passing through the volume output valve that the audio decoder chip carries out the current audio frequency behind the audio decoder according to described volume adjustment factor and is adjusted to actual controlled volume output valve.
The device of the adjusting volume that the embodiment of the invention provides can be applied among the method embodiment one of aforementioned correspondence, and details repeat no more at this referring to the description of the foregoing description one.
Embodiment five
Fig. 5 shows the concrete structure block diagram of the device of the adjusting volume that the embodiment of the invention four provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.In the present embodiment; The device of this adjustment volume can be the unit that is built in software unit, hardware cell or software and hardware combining in the TV; Also can be the unit that is built in software unit, hardware cell or software and hardware combining in the audio/video player that can carry out voice playing, the device of this adjusting volume comprises: reference data value generation unit 51, current volume acquiring unit 52, volume monitoring unit 53, volume judging unit 54, adjustment factor acquiring unit 55 and sound volume regulation unit 56.
Wherein, reference data value generation unit 51 is used for when monitoring after the user adjusts volume; And during the normal viewing TV programme; The actual output volume value of the equipment that obtains generates the reference data value OutputVol that volume is regulated according to said actual volume output valve, and storage;
Current volume acquiring unit 52 is used for when monitoring channel alteration or content of TV program when change, and the volume output valve according to carry out the current audio frequency behind the audio decoder through the audio decoder chip calculates current volume output reference value;
Adjustment factor acquiring unit 55 is used for reference data value and said current volume output reference value according to preset volume adjusting, calculates the volume adjustment factor;
Sound volume regulation unit 56 is used for according to the control of described volume adjustment factor the volume output valve that the audio decoder chip carries out the current audio frequency behind the audio decoder being adjusted to actual controlled volume output valve.
The device of the adjusting volume that the embodiment of the invention provides can be applied among the method embodiment two and three of aforementioned correspondence, and details repeat no more at this referring to the foregoing description two and three description.
It should be noted that among the said system embodiment that each included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize function corresponding; In addition, the concrete title of each functional unit also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition; One of ordinary skill in the art will appreciate that all or part of step that realizes in above-mentioned each embodiment method is to instruct relevant hardware to accomplish through program; Corresponding program can be stored in the computer read/write memory medium; Described storage medium is like ROM/RAM, disk or CD etc.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method of regulating volume is characterized in that, said method comprises:
When monitoring the change of channel alteration or content of TV program, the volume output valve according to through the current audio frequency behind the audio decoder calculates current volume output reference value;
Reference data value and said current volume output reference value according to preset volume is regulated calculate the volume adjustment factor;
The volume output valve that to pass through the current audio frequency behind the audio decoder according to described volume adjustment factor is adjusted to actual controlled volume output valve.
2. the method for claim 1 is characterized in that, the said volume output valve that will pass through the current audio frequency behind the audio decoder according to described volume adjustment factor is adjusted to before the actual controlled volume output valve step, also comprises:
Control loudspeaker is output sound not temporarily, perhaps from childhood to big gradual change output sound.
3. the method for claim 1 is characterized in that, calculates after the current volume output reference value step according to the volume output valve through the current audio frequency behind the audio decoder said, and said method also comprises:
Detect current volume output reference value; Whether the ratio of judging the reference data value that said current volume output reference value and preset volume are regulated is in preset threshold values scope; If not in preset threshold values scope; Then continue to carry out the reference data value and the said current volume output reference value of regulating, calculate the step of volume adjustment factor, otherwise withdraw from according to preset volume.
4. like each described method of claim 1 to 3; It is characterized in that, said when monitoring channel alteration or content of TV program when change, according to volume output valve through the current audio frequency behind the audio decoder; Calculate before the current volume output reference value, said method also comprises:
When monitoring after the user adjusts volume, the actual output volume value of the equipment that obtains generates the reference data value that described volume is regulated according to said actual output volume value, and storage.
5. method as claimed in claim 4 is characterized in that,
The calculating of said reference data value is specially:
The output valve of the current voice data behind the audio decoder is once passed through in each predefined sampling period calculating;
Double counting N time calculates the mean value of N output valve, and with the said reference data value that said mean value is regulated as volume, wherein, N is natural number for preset number of times;
The calculating of said current volume output reference value is specially:
The volume output valve of the current voice data behind the audio decoder is once passed through in each predefined sampling period calculating;
Double counting M time calculates the mean value of M output valve, and with the volume output mean value of said mean value as current source of sound, wherein, M is natural number for preset number of times.
6. method as claimed in claim 4 is characterized in that, the calculating of said reference data value and said current volume output reference value is specially:
The volume output of audio frequency comprises master volume and fine setting volume, calculates the average output valve and the maximum output valve of said fine setting volume in the predefined sampling period;
Calculate the ratio between said average output valve and the maximum output valve, and with said ratio as described reference data value or current volume output reference value.
7. the method for claim 1; It is characterized in that; The computing formula of said volume adjustment factor is: Voladjust=(OutputVol/OutputVol '); Wherein Voladjust is the volume adjustment factor, and OutputVol is the reference data value, and OutputVol ' is a current volume output reference value.
8. the method for claim 1; It is characterized in that; The said volume output valve that will pass through the current audio frequency behind the audio decoder according to described volume adjustment factor is adjusted in the actual controlled volume output valve step; Said actual controlled volume output valve is calculated through the actual audio amplitude function according to volume output valve and said volume adjustment factor through the current audio frequency behind the audio decoder, and said actual audio amplitude function is:
Vol " '=Vol " * Voladjust, wherein Vol " be volume output valve through the current audio frequency behind the audio decoder, Voladjust is the volume adjustment factor, Vol " ' be actual controlled volume output valve.
9. one kind is adopted the device of the adjusting volume of method according to claim 1, it is characterized in that said device comprises:
The current volume acquiring unit is used for when monitoring channel alteration or content of TV program when change, and the volume output valve according to carry out the current audio frequency behind the audio decoder through the audio decoder chip calculates current volume output reference value;
The adjustment factor acquiring unit is used for reference data value and said current volume output reference value according to preset volume adjusting, calculates the volume adjustment factor;
Sound volume regulation unit is used for will passing through the volume output valve that the audio decoder chip carries out the current audio frequency behind the audio decoder according to described volume adjustment factor and is adjusted to actual controlled volume output valve.
10. device as claimed in claim 9 is characterized in that, said device also comprises:
The volume monitoring unit is used to detect current volume output reference value;
The volume judging unit; Whether the ratio of the reference data value that the volume that is used to judge said current volume output reference value and presets is regulated is in preset threshold values scope; If not in preset threshold values scope; Then to the control information of sound volume regulation unit output volume, sound volume regulation unit is carried out volume adjustment, output-controlled volume according to said volume control information;
Reference data value generation unit is used for when monitoring after the user adjusts volume, and the actual output volume value of the equipment that obtains generates the reference data value that volume is regulated according to said actual output volume value, and storage.
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| CN103680516A (en) * | 2013-12-11 | 2014-03-26 | 深圳Tcl新技术有限公司 | Audio signal processing method and device |
| CN103731683A (en) * | 2012-10-16 | 2014-04-16 | 韩国放送广告振兴公社 | Broadcast advertisement volume control system and method therefor |
| CN103826075A (en) * | 2014-01-26 | 2014-05-28 | 北京京东方显示技术有限公司 | Loudspeaker volume control device, volume adjusting method and audio-visual device |
| CN103905672A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Volume adjusting method and system |
| CN104052949A (en) * | 2013-03-14 | 2014-09-17 | 联想(北京)有限公司 | Volume adjusting method and apparatus, and electronic equipment |
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| CN105810204A (en) * | 2016-03-16 | 2016-07-27 | 深圳市智骏数据科技有限公司 | Audio level detecting and adjusting method and device |
| CN106210879A (en) * | 2016-08-16 | 2016-12-07 | 微鲸科技有限公司 | intelligent volume control system and intelligent volume control method |
| CN106293606A (en) * | 2016-08-16 | 2017-01-04 | 微鲸科技有限公司 | Sound-volume control system and method for controlling volume |
| CN106998435A (en) * | 2017-05-17 | 2017-08-01 | 微鲸科技有限公司 | Volume adjusting method, device, audio output apparatus and television set |
| WO2022161212A1 (en) * | 2021-01-31 | 2022-08-04 | 华为技术有限公司 | Volume adjustment method and large-screen electronic device |
| CN116092458A (en) * | 2023-02-10 | 2023-05-09 | 牡丹江师范学院 | Vocal music adjusting system and method based on big data |
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