CN101815114B - Method for controlling acoustic gain and mobile phone capable of controlling acoustic gain - Google Patents
Method for controlling acoustic gain and mobile phone capable of controlling acoustic gain Download PDFInfo
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- CN101815114B CN101815114B CN200910007777.XA CN200910007777A CN101815114B CN 101815114 B CN101815114 B CN 101815114B CN 200910007777 A CN200910007777 A CN 200910007777A CN 101815114 B CN101815114 B CN 101815114B
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Abstract
The invention discloses a method for controlling acoustic gain of a mobile phone, comprising the following steps: judging whether the mobile phone is in a loudspeaker mode; if so, judging whether the current playing file is in a specific form or not so as to generate a judgment result; determining whether the automatic acoustic gain control function is started or not to regulate the acoustic gainof the current playing file according to the judgment result; and starting the automatic acoustic gain control function when the current playing file is in a first specific audio format or a first specific video format.
Description
Technical field
The invention relates to the method for the volume gain of controlling mobile phone and the mobile phone that can control volume gain, espespecially a kind ofly be in speaker model lower time at mobile phone, judge whether present played file is method and the mobile phone that specific format determines whether starting automatic gain control function.
Background technology
In the flourish advanced information society in wireless telecommunications networking, mobile phone has become one of communication tool that society the most generally uses.Mobile phone can allow the user carry out wireless telecommunications whenever and wherever possible, carries out easily the communication of voice.And the at present application that provides of mobile phone is more and more extensive, the multimedia functions such as the user can utilize mobile phone to realize similarly to be and watch film, music playing, watches news, video recording recording.
Because the volume of mobile phone is usually very little, and is not too large so the size of loudspeaker can be subject to limited space usually, thus, also can cause the broadcast sound volume of mobile phone to be restricted jointly.And different audio files source has different volumes and different DYNAMIC DISTRIBUTION scopes, so the loudspeaker of mobile phone are difficult to meet all requirements.Therefore, the document source volume of playing when mobile phone too hour, the output of loudspeaker is difficult to be heard, this situation is even more serious in noisy environment.
Summary of the invention
Therefore, one of purpose of the present invention is to propose a kind of method of the volume gain of controlling mobile phone and the mobile phone that can control volume gain, to solve the above problems.
The present invention discloses a kind of method of controlling the volume gain of mobile phone.The method comprises: judge whether this mobile phone is under the speaker model; In judging that mobile phone is in speaker model lower time, judges whether present played file is that specific format is to produce judged result; And determine whether starting automatic gain control function according to this judged result, to adjust the volume gain of this present played file.When this present played file is the first particular video formats (for example wmv form, mp4 form, avi form, 3gp form, 3g2 form and m4v form) or the first special audio form (for example wav form, mp3 form and mid form), just start automatic gain control function.
The present invention also discloses a kind of mobile phone of controlling volume gain.Mobile phone comprises audio coding decoding unit, operation amplifier unit, voice output, detection and judging unit and microprocessing unit.The audio coding decoding unit is used for processing present played file.The operation amplifier unit is coupled to the audio coding decoding unit, it comprises automatic gain controller and amplifier, wherein automatic gain controller is used for adjusting the volume gain of this present played file, and amplifier is coupled to automatic gain controller, and the volume gain to that is used for amplifying this present played file is multiple fixedly.Voice output is coupled to the operation amplifier unit, and when mobile phone is in speaker model lower time, mobile phone is play this present played file with voice output.Detect with judging unit and be used for being in speaker model lower time in mobile phone, judge whether this present played file is that specific format is with the generation judged result.Microprocessing unit is coupled to audio coding decoding unit, operation amplifier unit and detection and judging unit, is used for determining whether starting according to this judged result the automatic gain control function of automatic gain controller.
Description of drawings
Fig. 1 is the schematic diagram of the first embodiment of the present invention's mobile phone that can control volume gain.
Fig. 2 is the schematic diagram of the second embodiment of the present invention's mobile phone that can control volume gain.
Fig. 3 is the schematic diagram of the volume distribution characteristic of the played file of explanation different-format.
Fig. 4 is the flow chart of an example operation of the method for the present invention's volume gain of controlling mobile phone.
Fig. 5 controls (including Fig. 5 A and Fig. 5 B) flow chart of another example operation of method of the volume gain of mobile phone for the present invention.
[main element label declaration]
100,200 mobile phones
110,210 microprocessing units
120,220 detect and judging unit
130,230 audio coding decoding unit
140 operation amplifier unit
150 automatic gain controllers
160 amplifiers
170 voice outputs
PF1, PF2, the present played file of PF3
The DR1 judged result
The SC control signal
402～410,510～512,520～522 steps
Embodiment
Please refer to Fig. 1, Fig. 1 is the schematic diagram of the first embodiment of the present invention's mobile phone 100 that can control volume gain.As shown in Figure 1, mobile phone 100 comprises (but being not limited to) microprocessing unit 110, detection and judging unit 120, audio coding decoding unit 130, operation amplifier unit 140 and voice output 170.Audio coding decoding unit 130 is coupled to microprocessing unit 110, is used for processing present played file PF1.And operation amplifier unit 140 is coupled to audio coding decoding unit 130, it comprises automatic gain controller 150 and amplifier 160, wherein automatic gain controller 150 is used for adjusting the volume gain of present played file PF1 to produce present played file PF2, and amplifier 160 is coupled to automatic gain controller 150, the volume gain that is used for amplifying present played file PF2 to fixing multiple to produce present played file PF3.Detect and to be intended to be mobile phone with 120 of judging units and to be in speaker model (speakermode) lower time, judge whether present played file PF1 is that specific format produces judged result DR1.Microprocessing unit 110 is coupled to audio coding decoding unit 130, operation amplifier unit 140 and detection and judging unit 120, be used for producing control signal SC to automatic gain controller 150 according to judged result DR1, to determine whether to start the automatic gain control function of automatic gain controller 150.Wherein, voice output 170 can be loudspeaker.How determine whether starting the relevant running of the automatic gain control function of automatic gain controller 150 according to the present file format of played file PF1 about microprocessing unit 110, will more in detail explanation in the following example.
In the present embodiment, detect the outside that is arranged at microprocessing unit 110 with judging unit 120 and audio coding decoding unit 130, but the present invention is not limited thereto.In other embodiment, detect the inside that also can be arranged at microprocessing unit 110 with judging unit 120 and audio coding decoding unit 130.Please refer to Fig. 2, Fig. 2 is the schematic diagram of the second embodiment of the present invention's mobile phone 200 that can control volume gain.In Fig. 2, the framework of mobile phone 200 is similar with mobile phone shown in Figure 1 100, and both differences are that the detection of mobile phone 200 and judging unit 220 and audio coding decoding unit 230 are arranged at the inside of microprocessing unit 210.In other words, detection and judging unit 220 and audio coding decoding unit 230 and microprocessing unit 210 are arranged on the same integrated circuit, and this also is under the jurisdiction of the scope that the present invention is contained.
Please refer to Fig. 3, Fig. 3 is the schematic diagram of the volume distribution characteristic of the played file of explanation different-format.In Fig. 3, what the left side represented is the volume distribution characteristic of the file of specific format, and the right representative is the volume distribution characteristic of the file of non-specific format.So-called " specific format " can be subdivided into again two kinds of-first particular video formats and the first special audio form herein, wherein the first particular video formats comprises wmv form, mp4 form, avi form, 3gp form, 3g2 form or m4v form, the first special audio form then comprises wav form, mp3 form or mid form, and these specific formats are common among the phonological component of film played file, news played file or satellite navigation file.Can be learnt by Fig. 3, the DYNAMIC DISTRIBUTION scope of the file of specific format is wider, and average volume then drops on-the 27dB place; But not the DYNAMIC DISTRIBUTION scope of the file of specific format (similarly being general music file) is less, and average volume is to drop on-the 10dB place, than high times of the average volume of the file of specific format (10dB＞-27dB).At this moment; if mobile phone is play above-mentioned specific format and the file of nonspecific form with identical loudspeaker; often can seem very little sound and be not easy to listen clearly of the phonological component that can find film played file, news played file or satellite navigation file, general music file then these problems can not occur.For head it off, then the present invention proposes mobile phone 100,200, and it can determine whether starting according to the file format of present played file PF1 the automatic gain control function of automatic gain controller 150.
Please refer to Fig. 4, Fig. 4 is the flow chart of an example operation of the method for the present invention's volume gain of controlling a mobile phone, it comprises following step (the following step and non-limiting will the execution according to order shown in Figure 4 can be done suitable modulation and be obtained the result that wants):
Step 402: beginning.
Step 404: judge whether mobile phone is under the speaker model.When mobile phone is in speaker model lower time, execution in step 406; Otherwise, execution in step 410.
Step 406: judge whether present played file is that specific format is to produce judged result.When this present played file of judgment result displays is this specific format, execution in step 408; Otherwise, execution in step 410.
Step 408: start automatic gain control function.
Step 410: do not start automatic gain control function.
About each step shown in Figure 4 please arrange in pairs or groups Fig. 1 or each element shown in Figure 2, can understand between each element and how to operate, and for description for purpose of brevity, therefore the operation of each step just repeats no more among Fig. 4.It should be noted that step 404, the 406th, carry out it by detecting with judging unit 120,220, step 408,410 then is to carry out it by microprocessing unit 110,210.
Please refer to Fig. 5, Fig. 5 controls (including Fig. 5 A and Fig. 5 B) flow chart of another example operation of method of the volume gain of mobile phone for the present invention.Shown in Fig. 5 A, it comprises (but being not limited to) following step:
Step 402: beginning.
Step 404: judge whether mobile phone is under the speaker model.When mobile phone is in speaker model lower time, execution in step 510; Otherwise, execution in step 410.
Step 510: judge whether this present played file is that the first particular video formats is to produce the first judged result.When present played file is the first particular video formats, execution in step 408; Otherwise, execution in step 512.
Step 512: judge whether this present played file is that the first special audio form is to produce the second judged result.When present played file is the first special audio form, execution in step 408; Otherwise, execution in step 410.
Step 408: start automatic gain control function.
Step 410: do not start automatic gain control function.
Shown in Fig. 5 B, it comprises (but being not limited to) following step:
Step 402: beginning.
Step 404: judge whether mobile phone is under the speaker model.When mobile phone is in speaker model lower time, execution in step 520; Otherwise, execution in step 410.
Step 520: judge whether this present played file is that the first special audio form is to produce the first judged result.When present played file is the first special audio form, execution in step 408; Otherwise, execution in step 522.
Step 522: judge whether this present played file is that the first particular video formats is to produce the second judged result.When present played file is the first particular video formats, execution in step 408; Otherwise, execution in step 410.
Step 408: start automatic gain control function.
Step 410: do not start automatic gain control function.
The step that note that the step shown in Fig. 5 A and Fig. 5 B and Fig. 4 is similar, and it is respectively the alternate embodiment of Fig. 4.In Fig. 5 A, be that with the step difference of Fig. 4 the flow process of Fig. 5 A is that step 406 with Fig. 4 is subdivided into two steps (that is step 510～512); Similarly, in Fig. 5 B, the flow process that is Fig. 5 B with the step difference of Fig. 4 is subdivided into two steps (that is step 520～522) with the step 406 of Fig. 4.It should be noted that and judge whether present played file is the step order of the first particular video formats or the first special audio form, is not restrictive condition of the present invention.
Please note, the step of above-mentioned each flow process only for the present invention for feasible embodiment, and unrestricted restrictive condition of the present invention, and in the situation that without prejudice to spirit of the present invention, the method can also comprise other intermediate steps or several steps can be merged into one step, to do suitable variation.
Above-described embodiment only is used for technical characterictic of the present invention is described, is not to limit to category of the present invention.As from the foregoing, the invention provides a kind of mobile phone of volume gain and method of controlling the volume gain of mobile phone controlled.Because different audio files source has different volumes and different DYNAMIC DISTRIBUTION scopes, so the loudspeaker of mobile phone are difficult to meet all requirements.Therefore, the disclosed mobile phone of the present invention determines whether starting the automatic gain control function of automatic gain controller by the file format of judging present played file.When playing general music file (that is file of above-mentioned nonspecific form), because its DYNAMIC DISTRIBUTION scope is less and average volume is larger, so microprocessing unit need not start the automatic gain control function of automatic gain controller; And when the phonological component of movie played file, news played file or satellite navigation file (that is file of above-mentioned specific format), because its DYNAMIC DISTRIBUTION scope is large and average volume is less, so microprocessing unit must start the volume gain that automatic gain control function comes the present played file of optimization.Thus, the disclosed mobile phone of the present invention does not have the problems such as output appearance that can't hear loudspeaker.In addition, above-mentioned automatic gain controller 150 and amplifier 160 can adopt same chip, do not need to increase extra placing space.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim scope of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (16)
1. method of controlling the volume gain of mobile phone includes:
Judge whether this mobile phone is under the speaker model;
In judging that this mobile phone is in this speaker model lower time, judges whether present played file is that specific format is to produce judged result; And
Determine whether starting automatic gain control function according to this judged result, to adjust the volume gain of this present played file;
Wherein determine whether that according to this judged result the step that starts this automatic gain control function comprises:
When this present played file of this judgment result displays is this specific format, start this automatic gain control function; And
Be not during for this specific format in this present played file of this judgment result displays, do not start this automatic gain control function.
2. method according to claim 1, judge that wherein whether this present played file is that the step of this specific format comprises:
Judge whether this present played file is that the first particular video formats is to produce the first judged result; And
Determine whether that according to this first judged result the step that starts this automatic gain control function comprises:
When this present played file of this first judgment result displays is this first particular video formats, start this automatic gain control function.
3. method according to claim 2, judge that wherein whether this present played file is that the step of this specific format also comprises:
Be not during for this first particular video formats in this present played file of this first judgment result displays, judge whether this present played file is that the first special audio form is to produce the second judged result; And
Determine whether that according to this second judged result the step that starts this automatic gain control function also comprises:
When this present played file of this second judgment result displays is this first special audio form, start this automatic gain control function; And
When this present played file of this second judgment result displays is not during for this first special audio form, do not start this automatic gain control function.
4. method according to claim 3, wherein this first particular video formats is one of in wmv form, mp4 form, avi form, 3gp form, 3g2 form and the m4v form, and this first special audio form is one of in wav form, mp3 form and the mid form.
5. method according to claim 1, judge that wherein whether this present played file is that the step of this specific format comprises:
Judge whether this present played file is that the first special audio form is to produce the first judged result; And
Determine whether that according to this first judged result the step that starts this automatic gain control function comprises:
When this present played file of this first judgment result displays is this first special audio form, start this automatic gain control function.
6. method according to claim 5, judge that wherein whether this present played file is that the step of this specific format also comprises:
Be not during for this first special audio form in this present played file of this first judgment result displays, judge whether this present played file is that the first particular video formats is to produce the second judged result; And
Determine whether that according to this second judged result the step that starts this automatic gain control function also comprises:
When this present played file of this second judgment result displays is this first particular video formats, start this automatic gain control function; And
When this present played file of this second judgment result displays is not during for this first particular video formats, do not start this automatic gain control function.
7. method according to claim 6, wherein this first particular video formats is one of in wmv form, mp4 form, avi form, 3gp form, 3g2 form and the m4v form, and this first special audio form is one of in wav form, mp3 form and the mid form.
8. the mobile phone that can control volume gain includes:
The audio coding decoding unit is used for processing present played file;
The operation amplifier unit, be coupled to this audio coding decoding unit and include automatic gain controller and amplifier, this automatic gain controller is used for adjusting the volume gain of this present played file, and the volume gain that this amplifier is coupled to this automatic gain controller and is used for amplifying this present played file is to fixing multiple;
Voice output is coupled to this operation amplifier unit, wherein is in speaker model lower time when this mobile phone, and this mobile phone is play this present played file with this voice output;
Detect and judging unit, be used for being in this speaker model lower time in this mobile phone, judge whether this present played file is that specific format is with the generation judged result; And
Microprocessing unit is coupled to this audio coding decoding unit, this operation amplifier unit and this detection and judging unit, is used for producing control signal to determine whether to start the automatic gain control function of this automatic gain controller according to this judged result;
Wherein this microprocessing unit starts this automatic gain control function of this automatic gain controller when this present played file of this judgment result displays is this specific format; And be not during for this specific format in this present played file of this judgment result displays, do not start this automatic gain control function of this automatic gain controller.
9. mobile phone according to claim 8, wherein this voice output is loudspeaker.
10. mobile phone according to claim 8, wherein this microprocessing unit, this audio codec and this detection and judging unit are to be arranged on the same integrated circuit.
11. mobile phone according to claim 8, wherein this detection and judging unit are used for judging whether this present played file is that the first particular video formats is to produce the first judged result; And this microprocessing unit is used for starting this automatic gain control function of this automatic gain controller when this present played file of this first judgment result displays is this first particular video formats.
12. mobile phone according to claim 11, wherein this detection and judging unit also are used for judging that in this judged result this present played file is not during for this first particular video formats, judges whether this present played file is that the first special audio form is to produce the second judged result; And this microprocessing unit also is used for starting this automatic gain control function of this automatic gain controller when this present played file of this second judgment result displays is this first special audio form; And be not during for this first special audio form in this present played file of this second judgment result displays, do not start this automatic gain control function of this automatic gain controller.
13. mobile phone according to claim 12, wherein this first particular video formats is one of in wmv form, mp4 form, avi form, 3gp form, 3g2 form and the m4v form, and this first special audio form is one of in wav form, mp3 form and the mid form.
14. mobile phone according to claim 8, wherein this detection and judging unit are used for judging whether this present played file is that the first special audio form is to produce the first judged result; And this microprocessing unit is used for starting this automatic gain control function of this automatic gain controller when this present played file of this first judgment result displays is this first special audio form.
15. mobile phone according to claim 14, wherein this detection and judging unit also are used for judging that in this first judged result this present played file is not during for this first special audio form, judges whether this present played file is that the first particular video formats is to produce the second judged result; And this microprocessing unit also is used for starting this automatic gain control function of this automatic gain controller when this present played file of this second judgment result displays is this first particular video formats; And be not during for this first particular video formats in this present played file of this second judgment result displays, do not start this automatic gain control function of this automatic gain controller.
16. mobile phone according to claim 15, wherein this first particular video formats is one of in wmv form, mp4 form, avi form, 3gp form, 3g2 form and the m4v form, and this first special audio form is one of in wav form, mp3 form and the mid form.
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| CN200910007777.XA CN101815114B (en) | 2009-02-24 | 2009-02-24 | Method for controlling acoustic gain and mobile phone capable of controlling acoustic gain |
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| CN200910007777.XA CN101815114B (en) | 2009-02-24 | 2009-02-24 | Method for controlling acoustic gain and mobile phone capable of controlling acoustic gain |
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| CN101815114B true CN101815114B (en) | 2013-10-16 |
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| CN103686015A (en) * | 2013-12-20 | 2014-03-26 | 乐视致新电子科技（天津）有限公司 | Volume adjustment method and system |
| CN105227998A (en) * | 2014-06-30 | 2016-01-06 | 惠州市伟乐科技股份有限公司 | The method and apparatus of balance Multi-audio-frequency volume |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1964187A (en) * | 2005-11-11 | 2007-05-16 | 鸿富锦精密工业（深圳）有限公司 | A system and method to manage sound volume |
| CN1972120A (en) * | 2006-11-29 | 2007-05-30 | 北京中星微电子有限公司 | A method and device for implementing adjustment of volume based on environmental noise detection |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1964187A (en) * | 2005-11-11 | 2007-05-16 | 鸿富锦精密工业（深圳）有限公司 | A system and method to manage sound volume |
| CN1972120A (en) * | 2006-11-29 | 2007-05-30 | 北京中星微电子有限公司 | A method and device for implementing adjustment of volume based on environmental noise detection |
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