CN1889655A - Digital television audio frequency volume automatic regulating method - Google Patents
Digital television audio frequency volume automatic regulating method Download PDFInfo
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- CN1889655A CN1889655A CN 200510027237 CN200510027237A CN1889655A CN 1889655 A CN1889655 A CN 1889655A CN 200510027237 CN200510027237 CN 200510027237 CN 200510027237 A CN200510027237 A CN 200510027237A CN 1889655 A CN1889655 A CN 1889655A
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Abstract
A method for automatically regulating audio volume of digital TV includes storing the setting figure of last channel and setting audio volume of last channel audio decoder to be zero, judging whether volume grade of picked up base audio data is consistent to set base grade or not and carrying out regulation to make the two be in consistence to each other if it is not, regulating output of audio data and simultaneously storing volume control setting figure used in regulation of said volume grade as well as utilizing stored volume control setting figure and volume setting figure of last channel to set volume output grade of audio decoder.
Description
Technical field
The present invention be used on the Digital Television with each channel separately the volume of different brackets be adjusted to the audio frequency volume automatic regulating method of the Digital Television of same levels automatically.
Background technology
At present, along with the ground wave receiving device towards universalness and advanced trend development, engendered more complicated and diversified product.Wherein state-of-the art product is personal video camera.
Personal video camera be with signal record on hard disk, and the personal Digital Video that can reset, this point is stored on the tape signal of video signal different with video tape recorder (VCR).It utilizes the hard disk drive of device in Digital Television set-top box and the television set main body, even without video tape recorder (VCR), also can be according to amount of capacity, and the TV programme of record certain hour section.If the selection channel, Digital Television can be a digital storage with in progress signal transition automatically, and can reproduce the content of broadcast simultaneously.
Therefore, by playing again from time-out by the playback key again behind the Pause key and storing signal.And can watch present in progress TV programme or playback slow motion again, and can also skip uninteresting part, the part of selecting to want is edited, and is very convenient to use.
Fig. 1 is the structure sketch of existing Digital Television.Among Fig. 1, Digital Television comprises: IR receiving system 100, control device 110, memory 120, tuner 130, VSB decoder 140, multichannel decomposer 150, decoder 160, output device 170.
After above-mentioned IR receiving system 100 receives the selected code of remote control information of user, send control device 110 to.
110 pairs of above-mentioned code of remote control of control device are resolved, and send analysis result to relevant apparatus.
Above-mentioned memory 120 comprises following two parts: be used for the flash memory of software such as storage operating system and the dynamic random access memory (DRAM) that is used to store the bitmap form virtual image that shows as output device.
Above-mentioned tuner 130 is according to the resolving information of user-selected code of remote control, to send VSB decoder 140 by the wireless signal that antenna assembly sends to, after VSB decoder 140 is converted into the IF signal with above-mentioned wireless signal, be converted to transmitting data stream again, and send contrary multichannel decomposer 150 to.
The information such as audio frequency, video and other data of being decomposed out by multichannel in contrary 150 pairs of above-mentioned transmitting data streams of multichannel decomposer are resolved.
160 pairs of decoders are decoded through this Voice ﹠ Video signal, digital signal of resolving the reason acquisition from contrary multichannel decomposer 150, and it can be exported by output device for the user uses again.
The audio volume of each TV station of Digital Television that is made of said apparatus is set to different separately grades.
For example, in Korea S, KBS, the audio volume grade that EBS, SBS set much at one, and the audio volume that MBC sets is bigger, if change to MBC from other channel, sound will be very big, volume must be turned down; Equally, change to other channel from MBC, sound will be very little, must volume be transferred big again.
As mentioned above, when the user changes channel at every turn, all must readjust volume, this has brought inconvenience to the user.
Summary of the invention
Therefore, purpose of the present invention just is to provide a kind of audio frequency volume automatic regulating method of Digital Television, in Digital Television, during to the different separately audio volume grade of each channel setting, analyze the reference grade among the TP that enters the channel of watching, regulate the audio volume grade automatically.
To achieve these goals, in the audio frequency volume automatic regulating method of Digital Television of the present invention, described Digital Television disposes audio decoder, it is characterized in that described audio frequency volume automatic regulating method comprises the steps: if change channel, Digital Television receives the play signal of channel correlation, and be translated into the transmitting data stream data, again the voice data that is converted into transmitting data stream is decoded, extract the reference note audio data, the volume that stores a last channel is provided with numerical value, the volume of audio decoder is set to " 0 ", judges whether the level of sound volume of the reference note audio data of said extracted conforms to both reference grade.If both do not conform to, the level of sound volume of regulating voice data makes it conform to reference grade; If the level of sound volume of two voice datas conforms to reference grade, employed volume control setting numerical value when just storing the voice data of output and regulating level of sound volume, use the volume of this a volume control setting numerical value and a last channel that numerical value is set, set the volume output level of above-mentioned audio decoder.
Effect of the present invention:
As mentioned above, the audio frequency volume automatic regulating method of Digital Television of the present invention when each channel setting during different level of sound volume, change channel at every turn and all must readjust volume, make troubles to the user.The present invention can eliminate this inconvenience, the user's that provides convenience Digital Television audio frequency volume automatic regulating method.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the structure sketch of existing Digital Television.
Fig. 2 is the Digital Television structure sketch according to the embodiment of the invention.
Fig. 3 is the flow chart according to the Digital Television sound intermediate frequency grade adjusting method of the embodiment of the invention.
Fig. 4 is the flow chart according to the audio decoder level of sound volume control method of the embodiment of the invention
Major part symbol description in the accompanying drawing:
200:IR receiving system 210: control device
220: memory 230: tuner
240:VSB demodulator 250: multichannel decomposer
260: Video Decoder 270: display unit
280: audio decoder 290: sound volume control device
294: analog switch 298: the voltage-contrast device
300: loud speaker
Embodiment
Execution mode to the audio frequency volume automatic regulating method of Digital Television of the present invention is elaborated below with reference to accompanying drawings.
As shown in Figure 2, Digital Television comprises: IR receiving system 200, control device 210, memory 220, tuner 230, VSB decoder 240, contrary multichannel decomposer 250, Video Decoder 260, display unit 270, audio decoder 280, sound volume control device 290, loud speaker 300.
After above-mentioned IR receiving system 200 receives user-selected code of remote control information, send control device 210 to.
Above-mentioned memory 220 comprises following two parts: be used for the flash memory of software such as storage operating system and the dynamic random access memory (DRAM) that is used to store the bitmap form virtual image that shows as output device.
Above-mentioned tuner 230 is according to the resolving information of user-selected code of remote control, to send VSB decoder 240 by the wireless signal that antenna assembly sends to, after VSB decoder 240 is converted to the IF signal with above-mentioned wireless signal, be converted to transmitting data stream again, and send it to contrary multichannel decomposer 250.
260 pairs of Video Decoders are decoded through resolving the video data that is obtained from contrary multichannel decomposer 250, pass through display unit 270 then with its output.
280 pairs of voice datas that transmit from contrary multichannel decomposer 250 of audio decoder are decoded, and send control device 290 then to.Audio decoder 280 is also controlled the volume of volume data according to the volume control signal that sends from sound volume control device.
Sound volume control device 290 judges whether to be necessary the voice data that is sent to audio decoder 280 is carried out volume control, regulates the volume of related audio data again.
Examine sound volume control device 290, sound volume control device 290 is made of analog switch 294 and voltage-contrast device 298.
If because of the channel transposing is necessary the automatic regulating volume grade, just the voice data that analog switch 294 will have been decoded sends voltage-contrast device 298 to.If do not change channel, just the voice data that analog switch 294 will have been decoded sends loud speaker 300 to.
Voltage-contrast device 298 extracts the reference note audio data from the voice data that sends by analog switch 294, and compares with set reference grade, judges whether both conform to.
If the level of sound volume of the reference note audio data of extracting does not conform to set grade, just voltage-contrast device 298 transmits volume control signal to audio decoder 280.
And the volume when voltage-contrast device 298 utilizes the level of sound volume of current channel to conform to reference grade is provided with the audio setting numerical value of a numerical value and a last channel, regulates the volume output level of voice data.
The simulated audio signal that loud speaker 300 outputs are regulated through volume in sound volume control device 290.It below is the explanation that the operation of the Digital Television that is made of said apparatus is done.
The RF signal that enters antenna changes the IF signal into through tuner 230, is the TP data in the inner conversion of VSB decoder again.The TP data are separated video data in demultiplexing device again with voice data, voice data changes into the analog audio data that can be listened to by the user in audio decoder 280.
If because of the channel transposing is necessary the automatic regulating volume grade, just analog switch 294 is sent to voltage-contrast device 298 with analog audio data; If need not to regulate level of sound volume, just analog switch 294 is exported analog audio data by loud speaker 300.That is, if the transposing channel, in order would to regulate the audio volume grade, just analog switch 294 passes the analog audio data of input to voltage-contrast device 298.This does not spread out of by loud speaker 300 for the reference volume grade of using during regulating level of sound volume.
Voltage-contrast device 298 compares the audio grade of analog switch 294 inputs and set reference grade.
If the audio grade of analog switch 294 inputs does not conform to set reference grade, just voltage-contrast device 298 transmits volume control signal to audio decoder 280.So, audio decoder 280 will be regulated the grade of audio frequency according to volume control signal.
Like this, the analog audio data of regulating level of sound volume enters voltage-contrast device 298 through analog switch, compares with reference grade again.
Just finish the audio grade adjusting if the volume that the process said process is regulated out conforms to reference grade, the value data of using during with the adjusting audio volume is stored in the memory 220.
After the audio grade that volume control setting numerical value that Digital Television is utilized on the memory 220 being used for of storing level of sound volume regulated and channel volume are provided with the channel that numerical value will watch the user is adjusted once more, be converted into analog audio data, through analog switch 290, by loud speaker 300 outputs.
Fig. 3 is a flow chart of regulating the audio grade method according to the Digital Television of the embodiment of the invention.
As shown in Figure 3:
S300, S302, if Digital Television receives in progress signal, the signal that receives is converted into the IF signal after, be converted into the TP data again.
S304, afterwards, Digital Television becomes voice data and video data with the TP data separating.
Respectively the voice data that is separated and the processing method of video data are illustrated below.
S306 at first illustrates the processing of audio data method, and Digital Television is decoded to the voice data that is separated.
S308, the broadcast receiver of Digital Television judge whether to be necessary that decoded voice data is carried out volume to be regulated.
S310 is if the judged result of 308 steps is need carry out grade to voice data to regulate, just Digital Television is regulated the level of sound volume of voice data again with its output.
With reference to Fig. 4, describe the method for the level of sound volume of regulating voice data in detail.
S312 is if the judged result of 308 steps is the volumes that need not to regulate voice data, just Digital Television is exported voice data so.
Below the processing method of photopic vision audio data.
S314, S316, digital broadcast receiver is decoded to video data, and output is through decoded video data.
Fig. 4 is the flow chart according to the level of sound volume control method of the voice data of the embodiment of the invention.As shown in Figure 4:
S400, S402 judge whether to change channel, if the transposing channel, Digital Television receives relevant play signal, is translated into transmitting data stream again.
S404, S406 follow, and Digital Television is decoded to the voice data that is converted into the TP data, and the volume that stores a last channel is provided with numerical value, and the volume of setting audio decoder is " 0 ", and as initial numerical value.
S408, next, whether the level of sound volume that Digital Television is judged decoded analog audio data conforms to set reference grade.
S410 conforms to set reference grade if the judged result of 408 steps is level of sound volume of analog audio data, and Digital Television is just exported relevant voice data.
S412 is if the judged result of 408 steps is that the level of sound volume of analog audio data does not conform to set reference grade, just Digital Television is regulated the level of sound volume of voice data, makes it to conform to reference grade.
S414 judges whether the level of sound volume of the voice data through overregulating conforms to reference grade, if the level of sound volume of voice data does not conform to set grade, flow process is got back to S408.
S416 if the level of sound volume of voice data conforms to set grade, just Digital Television draws the poor of the volume control setting numerical value that uses when regulating level of sound volume and initial numerical value, and stores this numerical value.
S418, then, the volume of the last channel that the Digital Television utilization stores is provided with the difference that stores among numerical value and the S416, regulates the volume output level of audio frequency.
As a result, the voice data of input audio decoder is output after will be adjusted to the volume that meets the volume output level again.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (1)
1, a kind of audio frequency volume automatic regulating method of Digital Television, described Digital Television disposes audio decoder, it is characterized in that described audio frequency volume automatic regulating method may further comprise the steps:
If the transposing channel, described Digital Television receives the play signal of channel correlation, and is translated into transmitting data stream;
The voice data that changes into transmitting data stream is decoded, extract the reference note audio data;
The volume that stores a last channel is provided with numerical value, and the volume of setting audio decoder is " 0 " simultaneously;
Whether the level of sound volume of the reference note audio data of judge extracting conforms to set reference grade: if the level of sound volume of the reference note audio data of extracting does not conform to set reference grade, the level of sound volume of adjusting voice data makes it to conform to reference grade; If the level of sound volume of the reference note audio data of extracting conforms to set reference grade, in outputting audio data, store the volume control setting numerical value that uses when regulating level of sound volume;
Utilize the volume control setting numerical value of described storage and the volume of a last channel that numerical value is set, the volume output level of audio decoder is set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510027237 CN1889655A (en) | 2005-06-29 | 2005-06-29 | Digital television audio frequency volume automatic regulating method |
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| CN 200510027237 CN1889655A (en) | 2005-06-29 | 2005-06-29 | Digital television audio frequency volume automatic regulating method |
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| CN1889655A true CN1889655A (en) | 2007-01-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453597B (en) * | 2007-11-29 | 2010-08-25 | 韩明智 | Accompanying sound balance circuit between TV receiver channels |
| CN102946520A (en) * | 2012-10-30 | 2013-02-27 | 深圳创维数字技术股份有限公司 | Channel volume automatic control method and digital television terminal |
| CN103152629A (en) * | 2013-03-28 | 2013-06-12 | 河南有线电视网络集团有限公司 | Volume regulating method and device |
| CN104363516A (en) * | 2014-11-12 | 2015-02-18 | 无锡科思电子科技有限公司 | Intelligent television control method based on volume adjustment and distance sensing |
| CN105187906A (en) * | 2015-07-28 | 2015-12-23 | 成都亿邻通科技有限公司 | Method for automatically adjusting volume of intelligent television |
| US9740279B2 (en) | 2015-02-13 | 2017-08-22 | Boe Technology Group Co., Ltd. | Method for adjusting volume of a display device and a display device |
| CN109565265A (en) * | 2016-08-17 | 2019-04-02 | 三星电子株式会社 | Electronic device and its control method |
-
2005
- 2005-06-29 CN CN 200510027237 patent/CN1889655A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453597B (en) * | 2007-11-29 | 2010-08-25 | 韩明智 | Accompanying sound balance circuit between TV receiver channels |
| CN102946520A (en) * | 2012-10-30 | 2013-02-27 | 深圳创维数字技术股份有限公司 | Channel volume automatic control method and digital television terminal |
| WO2014067206A1 (en) * | 2012-10-30 | 2014-05-08 | 深圳创维数字技术股份有限公司 | Method for automatically controlling channel volume, and digital television terminal |
| CN102946520B (en) * | 2012-10-30 | 2016-12-21 | 深圳创维数字技术有限公司 | A kind of method automatically controlling frequency channel volume and digital TV terminal |
| CN103152629A (en) * | 2013-03-28 | 2013-06-12 | 河南有线电视网络集团有限公司 | Volume regulating method and device |
| CN103152629B (en) * | 2013-03-28 | 2016-08-17 | 河南有线电视网络集团有限公司 | A kind of volume adjusting method and device |
| CN104363516A (en) * | 2014-11-12 | 2015-02-18 | 无锡科思电子科技有限公司 | Intelligent television control method based on volume adjustment and distance sensing |
| US9740279B2 (en) | 2015-02-13 | 2017-08-22 | Boe Technology Group Co., Ltd. | Method for adjusting volume of a display device and a display device |
| CN105187906A (en) * | 2015-07-28 | 2015-12-23 | 成都亿邻通科技有限公司 | Method for automatically adjusting volume of intelligent television |
| CN109565265A (en) * | 2016-08-17 | 2019-04-02 | 三星电子株式会社 | Electronic device and its control method |
| CN109565265B (en) * | 2016-08-17 | 2023-05-16 | 三星电子株式会社 | Electronic device and control method thereof |
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