CN102710913A - Television and sound effect adjusting method and device of same - Google Patents
Television and sound effect adjusting method and device of same Download PDFInfo
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- CN102710913A CN102710913A CN201210127584XA CN201210127584A CN102710913A CN 102710913 A CN102710913 A CN 102710913A CN 201210127584X A CN201210127584X A CN 201210127584XA CN 201210127584 A CN201210127584 A CN 201210127584A CN 102710913 A CN102710913 A CN 102710913A
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Abstract
The invention discloses a sound effect adjusting method of a television, comprising the following steps of: pre-arranging a sound effect power table which corresponds to a sound effect value, and a sound volume power table which corresponds to a sound volume value; recording the sound effect value and the sound volume value before the sound effect is adjusted, and obtaining corresponding sound effect power and sound volume power from the sound effect power table and the sound volume power table; reading the adjusted sound effect value when a user adjusts a sound effect setting value; checking the table to calculate the adjusted sound effect power; comparing the sound effect power before and after adjusting the sound effect to see whether the sound effect power is changed or not; calculating a sound effect power changing value if the sound effect power is changed; calculating the adjusted sound volume power according to the sound effect power changing value; checking the table to obtain the corresponding sound volume value according to the adjusted sound volume power; and transmitting the adjusted sound volume value to a sound volume register to adjust the sound volume. The invention further provides the television and a sound effect adjusting device of the television. According to the invention, the hardware cost does not need to be increased, the output power is guaranteed to have no obvious changes, the sound distortion is reduced and the user experience is improved.
Description
Technical field
The present invention relates to field of television, more specifically, relate to a kind of audio method of adjustment, device and television set of television set.
Background technology
Along with the further raising of television set process chip integrated level, audio processing module that the master control chip is integrated, this audio processing module can be carried out high pitch (Treble), bass audios such as (Bass) is handled.At present, the power that the audio processing section produces in most of television set main control chip all is to be superimposed upon on the power of volume processing section generation.For example, the power that does not carry out before audio is handled is the P volume, the gross power P gross power of (supposing it is to increase audio) behind the adjustment audio.By measuring P gross power＞P volume, promptly be after adjusting audio, it is big that gross power becomes.This part power that increases is exactly the P audio that the adjustment audio produces, P audio＞0.The adjustment audio can increase power output.When the power of adjustment behind the audio during greater than the power of television set speaker, not only can cause audio distortions, influence tonequality, and make loudspeaker be operated in over-power condition (bearing power is greater than rated power).And loudspeaker work long hours under the situation of excess load, maybe loudspeaker be burnt out.
There are following two kinds for the common solution of the problems referred to above in the prior art:
First kind is to deal with problems in the audio processing section.Promptly limit the gain that audios such as Bass, Treble are handled, the scope of restriction P audio, thus make and be superimposed upon the power reduction on the P volume that whole loudspeaker power output also reduces accordingly.But along with the arriving in ultra-thin epoch of television set, the volume of television internal loudspeaker is more and more littler.The loudspeaker audio is restricted, if restriction Bass, the adjustable gain that audios such as Treble are handled will influence sound quality.
Second kind is partly to deal with problems in the power amplifier level.Promptly adopt special acoustic processing chip, the TAS5707 type chip of produced in usa for example, this chip has the function of audio adjustment, dynamic gain control by IIC (INTER INTEGRAED CIRCIUT BUS, IC interior bus) control.Behind the adjustment audio, the software setting register flag bit, after MCU (Micro Control Unit, micro-control unit) read this sign, the gain controlling register through IIC writes TAS5707 reduced the gain of power amplifier level, thereby reduces the P volume.Its defective is: need be with IIC control and the power amplifier chip that has dynamic gain to control, the extra hardware cost that increased.
Summary of the invention
Main purpose of the present invention is to provide a kind of audio method of adjustment of television set, and being intended to solve needs extra increase hardware cost to adjust the technical problem of audio in the prior art.
In order to realize goal of the invention, the present invention provides a kind of audio method of adjustment of television set, and it may further comprise the steps:
Preset and audio value corresponding sound effect wattmeter and the corresponding volume wattmeter of volume value;
Audio value and volume value before the record adjustment audio also obtains corresponding sound effect power and volume power from audio wattmeter and volume wattmeter;
After the user carries out adjustment audio settings, read adjusted audio value, computation of table lookup goes out adjusted audio power;
Whether the audio power of relatively adjusting the audio front and back changes, if then calculate the audio power change values;
Calculate adjusted volume power according to the audio power change values;
Table look-up according to adjusted volume power and to obtain corresponding volume value;
Adjusted volume value is passed to the volume register, with the adjustment volume.
Preferably, audio value and the volume value before said record adjustment audio and from audio wattmeter and volume wattmeter, obtain corresponding sound effect power and volume power also comprises before:
Whether the acoustic pattern of judging television set is individual pattern, if then executive logging is adjusted audio preceding audio value and volume value and from audio wattmeter and volume wattmeter, is obtained corresponding sound effect power and volume power, otherwise process ends.
Preferably, saidly calculate adjusted volume power according to the audio power change values and comprise:
Volume power is deducted the audio power change values, obtain adjusted volume power.
The present invention also provides a kind of audio adjusting device of television set, and it comprises:
The wattmeter preset module is used to preset and audio value corresponding sound effect wattmeter and the corresponding volume wattmeter of volume value;
Audio and volume logging modle are used for writing down preceding audio value of adjustment audio and volume value and obtain corresponding sound effect power and volume power from audio wattmeter and volume wattmeter;
Audio value read module is used for after the user carries out adjustment audio settings, reading adjusted audio value, and computation of table lookup goes out adjusted audio power;
Audio power comparison module, whether the audio power that is used for relatively adjusting before and after the audio changes, if then calculate the audio power change values;
The audio power computation module is used for calculating adjusted volume power according to the audio power change values;
The volume value acquisition module is used for tabling look-up according to adjusted volume power and obtains corresponding volume value;
Delivery module is used for adjusted volume value is passed to the volume register, with the adjustment volume.
Preferably, the audio adjusting device of above-mentioned television set also comprises:
The pattern judge module is used to judge whether the acoustic pattern of television set is individual pattern, if then start audio and volume logging modle, otherwise process ends.
Preferably, said audio power computation module specifically is used for:
Volume power is deducted the audio power change values, obtain adjusted volume power.
The present invention also provides a kind of television set, and it comprises the audio adjusting device of television set, and the audio adjusting device of this television set comprises: the wattmeter preset module is used to preset and audio value corresponding sound effect wattmeter and the corresponding volume wattmeter of volume value;
Audio and volume logging modle are used for writing down preceding audio value of adjustment audio and volume value and obtain corresponding sound effect power and volume power from audio wattmeter and volume wattmeter;
Audio value read module is used for after the user carries out adjustment audio settings, reading adjusted audio value, and computation of table lookup goes out adjusted audio power;
Audio power comparison module, whether the audio power that is used for relatively adjusting before and after the audio changes, if then calculate the audio power change values;
The audio power computation module is used for calculating adjusted volume power according to the audio power change values;
The volume value acquisition module is used for tabling look-up according to adjusted volume power and obtains corresponding volume value;
Delivery module is used for adjusted volume value is passed to the volume register, with the adjustment volume.
The present invention distributes gain through software approach dynamically under the condition of existing hardware, increase the gain-adjusted scope of audios such as BASS, TREBLE; The quality that had both guaranteed sound can not influence power output yet; This scheme does not relate to the hardware change, need not increase hardware cost, and can guarantee that power output does not have significant change; Reduce the distortion of sound, promote user experience.
Description of drawings
Fig. 1 is the flow chart of audio method of adjustment one embodiment of television set of the present invention;
Fig. 2 is the structural representation of audio adjusting device one embodiment of television set of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
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.
The method that the present invention provides a kind of audio adjusting device of using above-mentioned television set to send SMS message, with reference to Fig. 1, this method may further comprise the steps:
Step S10 presets and audio value corresponding sound effect wattmeter and the corresponding volume wattmeter of volume value; In the audio wattmeter, all corresponding audio performance number of each audio value; In the volume wattmeter, each volume value all can corresponding volume performance number.The embodiment of the invention can realize above-mentioned each step through software, for example can table look-up through following program language among the step S10 and obtain the audio power P
Audio 1: Power_soundeffect_before=GetPowe (u8soundeffect_before); And for example, also can table look-up and obtain volume power P volume 1 through Power_volume_before=GetPowe (u8volume_before).
Step S20, audio value and the volume value before the record adjustment audio also obtains corresponding sound effect power and volume power from audio wattmeter and volume wattmeter; For example, can write down audio show value and volume show value, volume virtual value, volume register value, audio show value.In the embodiment of the invention, the audio value before the adjustment audio can be recorded as V
Audio 1, the volume value before the adjustment audio is recorded as V
Value 1According to V
Audio 1And V
Value 1Look into audio wattmeter and volume wattmeter table and obtain the audio power P
Audio 1, the volume power P
Volume 1
Step S30 after the user carries out adjustment audio settings, reads adjusted audio value, and computation of table lookup goes out adjusted audio power; After supposing the adjustment audio, the audio value is V
Audio 2, look into the audio wattmeter and read the corresponding sound effect power P this moment
Audio 2
Step S40, whether the audio power of relatively adjusting the audio front and back changes, if then calculate the audio power change values; Compare P
Audio 2And P
Audio 1, judge whether both change, and calculate the audio variable power: Δ according to following formula
The P audio=P
Audio 2-P
Audio 1
Step S50 calculates adjusted volume power according to the audio power change values; The audio power that changes is passed to the volume power control module in the television set, promptly look Δ
The P volume=Δ
The P audio, with Δ
The P audioAs the adjustment foundation of volume power, calculate adjusted volume power: P by following formula
Volume 2=P
Volume 1-Δ
The P volume, be about to adjust the preceding volume power of audio and deduct the audio power change values, obtain adjusted volume power.In the embodiment of the invention, can calculate adjusted volume power VaryPower_soundeffect=Power_soundeffect_now-Power_sounde ffect_before through following program language.
Step S60 tables look-up according to adjusted volume power and to obtain corresponding volume value; According to P
Volume 2Result of calculation table look-up and obtain adjusted volume value V
Volume 2
Step S70 passes to the volume register with adjusted volume value, with the adjustment volume.
The present invention distributes gain through software approach dynamically under the condition of existing hardware, increase the gain-adjusted scope of audios such as BASS, TREBLE; The quality that had both guaranteed sound can not influence power output yet; This scheme does not relate to the hardware change, need not increase hardware cost, and can guarantee that power output does not have significant change; Reduce the distortion of sound, promote user experience.
In one embodiment, also comprise before the above-mentioned steps S20: whether the acoustic pattern of judging television set is individual pattern, if execution in step S20 then, otherwise process ends.When acoustic pattern was individual pattern, the Bass and the Treble of audio part can increase, and also can reduce, and corresponding volume also need reduce or increase, and therefore can start audio adjustment flow process of the present invention to be correspondingly processed.
With reference to Fig. 2, the present invention provides a kind of audio adjusting device of television set, and this device comprises:
Wattmeter preset module 10 is used to preset and audio value corresponding sound effect wattmeter and the corresponding volume wattmeter of volume value; In the embodiment of the invention, in the audio wattmeter that wattmeter preset module 10 is preset, all corresponding audio performance number of each audio value; In the volume wattmeter, each volume value all can corresponding volume performance number.
Audio and volume logging modle 20 are used for writing down preceding audio value of adjustment audio and volume value and obtain corresponding sound effect power and volume power from audio wattmeter and volume wattmeter; For example, audio and volume logging modle 20 can write down audio show value and volume show value, volume virtual value, volume register value, audio show value.In the embodiment of the invention, audio and volume logging modle 20 can be V with the audio value record before the adjustment audio
Audio 1, the volume value before the adjustment audio is recorded as V
Value 1Audio and volume logging modle 20 also can be according to V
Audio 1And V
Value 1Look into audio wattmeter and volume wattmeter table and obtain the audio power P
Audio 1, the volume power P
Volume 1
Audio value read module 30 is used for after the user carries out adjustment audio settings, reading adjusted audio value, and computation of table lookup goes out adjusted audio power; For example, after supposing to adjust audio, the audio value is V
Audio 2, audio value read module 30 is looked into the audio wattmeter and is read the corresponding sound effect power P at this moment
Audio 2
Audio power comparison module 40, whether the audio power that is used for relatively adjusting before and after the audio changes, if then calculate the audio power change values; For example audio power comparison module 40 compares P
Audio 2And P
Audio 1, judge whether both change, and calculate the audio variable power: Δ according to following formula
The P audio=P
Audio 2-P
Audio 1
Audio power computation module 50 is used for calculating adjusted volume power according to the audio power change values; For example, audio power computation module 50 is looked Δ
The P volume=Δ
The P audio, with Δ
The P audioAs the adjustment foundation of volume power, calculate adjusted volume power: P by following formula
Volume 2=P
Volume 1-Δ
The P volume, be about to adjust the preceding volume power of audio and deduct the audio power change values, obtain adjusted volume power.
Volume value acquisition module 60 is used for tabling look-up according to adjusted volume power and obtains corresponding volume value; For example, volume value acquisition module 60 is according to P
Volume 2Result of calculation table look-up and obtain adjusted volume value V
Volume 2
Delivery module 70 is used for adjusted volume value is passed to the volume register, with the adjustment volume.
In the embodiment of the invention, the audio adjusting device of television set also can comprise pattern judge module 80, is used to judge whether the acoustic pattern of television set is individual pattern, if start audio and volume logging modle 20, otherwise process ends.When acoustic pattern was individual pattern, the Bass and the Treble of audio part can increase, and also can reduce, and corresponding volume also need reduce or increase, and therefore can start audio and volume logging modle 20 to be correspondingly processed.
In the embodiment of the invention, each functional module of audio adjusting device of television set can realize that also for example, the function of above-mentioned pattern judge module 80 can realize through following program language through software:
The present invention also provides a kind of television set, and this TV also comprises above-mentioned audio adjusting device except volume register and volume power control module.The structure of this audio adjusting device and function can not be described further at this with reference to embodiment illustrated in fig. 2.Owing to be provided with above-mentioned audio adjusting device, the television set of the embodiment of the invention can guarantee that power output does not have significant change, reduces the distortion of sound, promotes user experience, and need not increase extra hardware.
More than be merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (7)
1. the audio method of adjustment of a television set is characterized in that, may further comprise the steps:
Preset and audio value corresponding sound effect wattmeter and the corresponding volume wattmeter of volume value;
Audio value and volume value before the record adjustment audio also obtains corresponding sound effect power and volume power from audio wattmeter and volume wattmeter;
After the user carries out adjustment audio settings, read adjusted audio value, computation of table lookup goes out adjusted audio power;
Whether the audio power of relatively adjusting the audio front and back changes, if then calculate the audio power change values;
Calculate adjusted volume power according to the audio power change values;
Table look-up according to adjusted volume power and to obtain corresponding volume value;
Adjusted volume value is passed to the volume register, with the adjustment volume.
2. the method for claim 1 is characterized in that, audio value and the volume value before said record adjustment audio also obtains corresponding sound effect power and volume power also comprises before from audio wattmeter and volume wattmeter:
Whether the acoustic pattern of judging television set is individual pattern, if then executive logging is adjusted audio preceding audio value and volume value and from audio wattmeter and volume wattmeter, is obtained corresponding sound effect power and volume power, otherwise process ends.
3. according to claim 1 or claim 2 method is characterized in that, saidly calculates adjusted volume power according to the audio power change values and comprises:
Volume power is deducted the audio power change values, obtain adjusted volume power.
4. the audio adjusting device of a television set is characterized in that, comprising:
The wattmeter preset module is used to preset and audio value corresponding sound effect wattmeter and the corresponding volume wattmeter of volume value;
Audio and volume logging modle are used for writing down preceding audio value of adjustment audio and volume value and obtain corresponding sound effect power and volume power from audio wattmeter and volume wattmeter;
Audio value read module is used for after the user carries out adjustment audio settings, reading adjusted audio value, and computation of table lookup goes out adjusted audio power;
Audio power comparison module, whether the audio power that is used for relatively adjusting before and after the audio changes, if then calculate the audio power change values;
The audio power computation module is used for calculating adjusted volume power according to the audio power change values;
The volume value acquisition module is used for tabling look-up according to adjusted volume power and obtains corresponding volume value;
Delivery module is used for adjusted volume value is passed to the volume register, with the adjustment volume.
5. the audio adjusting device of television set as claimed in claim 4 is characterized in that, also comprises:
The pattern judge module is used to judge whether the acoustic pattern of television set is individual pattern, if then start audio and volume logging modle, otherwise process ends.
6. like the audio adjusting device of claim 4 or 5 described television sets, it is characterized in that said audio power computation module specifically is used for:
Volume power is deducted the audio power change values, obtain adjusted volume power.
7. a television set is characterized in that, comprises the audio adjusting device like each described television set in the claim 4 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210127584.XA CN102710913B (en) | 2012-04-27 | 2012-04-27 | Television and sound effect adjusting method and device of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210127584.XA CN102710913B (en) | 2012-04-27 | 2012-04-27 | Television and sound effect adjusting method and device of same |
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| Publication Number | Publication Date |
|---|---|
| CN102710913A true CN102710913A (en) | 2012-10-03 |
| CN102710913B CN102710913B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210127584.XA Expired - Fee Related CN102710913B (en) | 2012-04-27 | 2012-04-27 | Television and sound effect adjusting method and device of same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788302A (en) * | 2017-01-04 | 2017-05-31 | 广东长虹电子有限公司 | Method for controlling volume and sound volume control device |
| CN107708036A (en) * | 2017-11-08 | 2018-02-16 | 深圳市康冠商用科技有限公司 | The adjustment method and device of audio frequency apparatus power output |
| CN107967921A (en) * | 2017-12-04 | 2018-04-27 | 苏州科达科技股份有限公司 | The volume adjusting method and device of conference system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189046A (en) * | 1996-12-11 | 1998-07-29 | Lg电子株式会社 | Apparatus and method for controlling sound for audio/video appliance |
| CN1476736A (en) * | 2000-06-08 | 2004-02-18 | 皇家菲利浦电子有限公司 | Remote control apparatus and receiver and audio system |
| WO2009113046A2 (en) * | 2008-03-10 | 2009-09-17 | Scopus Video Networks Ltd. | Audio volume adjustment in digital compression systems |
-
2012
- 2012-04-27 CN CN201210127584.XA patent/CN102710913B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189046A (en) * | 1996-12-11 | 1998-07-29 | Lg电子株式会社 | Apparatus and method for controlling sound for audio/video appliance |
| CN1476736A (en) * | 2000-06-08 | 2004-02-18 | 皇家菲利浦电子有限公司 | Remote control apparatus and receiver and audio system |
| WO2009113046A2 (en) * | 2008-03-10 | 2009-09-17 | Scopus Video Networks Ltd. | Audio volume adjustment in digital compression systems |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788302A (en) * | 2017-01-04 | 2017-05-31 | 广东长虹电子有限公司 | Method for controlling volume and sound volume control device |
| CN107708036A (en) * | 2017-11-08 | 2018-02-16 | 深圳市康冠商用科技有限公司 | The adjustment method and device of audio frequency apparatus power output |
| CN107708036B (en) * | 2017-11-08 | 2020-01-10 | 深圳市康冠商用科技有限公司 | Method and device for debugging output power of audio equipment |
| CN107967921A (en) * | 2017-12-04 | 2018-04-27 | 苏州科达科技股份有限公司 | The volume adjusting method and device of conference system |
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| Publication number | Publication date |
|---|---|
| CN102710913B (en) | 2014-12-17 |
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