CN1722274A - Multi-channel audio frequency output control method for CD device - Google Patents
Multi-channel audio frequency output control method for CD device Download PDFInfo
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- CN1722274A CN1722274A CN 200410052735 CN200410052735A CN1722274A CN 1722274 A CN1722274 A CN 1722274A CN 200410052735 CN200410052735 CN 200410052735 CN 200410052735 A CN200410052735 A CN 200410052735A CN 1722274 A CN1722274 A CN 1722274A
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Abstract
The invention relates to a multi-track frequency output controlling method of the disk apparatus. When the reading and reducing frequency is multi-track frequency with 5.1 track in disk apparatus such as DVD player on connecting earphone statement, it separates the multi-track frequency into left and right tracks and mixes them, at the same time it adds the corresponding driven voltage of bass loudspeaker's output level of 5.1 track onto the left-right oscillator of earphone which outputs the mixed multi-track sound, so that uses can hear the stereo even they are using the earphone.
Description
(1) technical field
The invention relates to multi-track frequency output controlling method in the optical disc apparatus, in detail, exactly about being used for controlling the multi-track frequency output controlling method that the multichannel audio that will read from the CD of DVD and so on and reduce suitably exports a kind of optical disc apparatus of the earphone (Headphone) with a left side/right channel loudspeaker to.
(2) background technology
Recently, the digital product of home theater and so on is being developed listing and is being put to commercialization, and in home theater, the optical disc apparatus of DVD player (DVD-Player) or DVD burner (DVD-Recorder) and so on can be connected use with televisor and a plurality of audio amplifier.
For example, as shown in Figure 1, in DVD player 20, read on the DVD that inserts in the slave and the high image quality video data that reduces is exported and showed by televisor (TV) 10 pictures.
And, when DVD player 20 reads and reduce multichannel audio, for example when from the diversified audio-video source (Source) of Dolby-Prologic, Dolby-AC3, LPCM, MP3 and so on, reading and reducing 5.1 channel audios, reduce three-dimensionally and export the voice data of high tone quality by 6 audio amplifiers.
Simultaneously, 6 above-mentioned audio amplifiers, to be positioned at central user is benchmark, comprise the 1st the audio amplifier SP1 (FL) (SP_FL:Speaker Front Left) 41 that is located at the left forward side, be located at the 2nd the audio amplifier SP2 (FR) (SP_FR:Front Right) 42 in right forward side, be located at middle the 3rd the audio amplifier SP3 (C) (SP_C:Speaker Center) 43 in the place ahead, the 4th the audio amplifier SP4 (W) that is located at central authorities left sides (SP_W:Woofer) 44, the 5th the audio amplifier SP5 (RL) that is located at the left rear side (SP_RL:RearLeft) 45 and be located at the 6th the audio amplifier SP6 (RR) (SP_RR:Rear Right) 46 at right rear side, disperse to be arranged on different positions separately.
So, the user watches from DVD player 20 and reads and the high image quality video image that reduces the time, can listen to 5.1 high-quality sound channel sound equipments by 6 audio amplifiers that disperse separately to be arranged on diverse location three-dimensionally by televisor (TV) 10 pictures that are controlled at of telepilot 30.
But, listen to the user of the multichannel audio of 5.1 high-quality sound channels by 6 audio amplifiers that are connected with DVD player 20 three-dimensionally, when the earphone (Headphone) that will only possess a left side/right side (L/R) channel loudspeaker is connected on the DVD player, just can only hear the sound of the sound of the FL sound channel by above-mentioned the 1st audio amplifier (SP_FL) output and the FR sound channel by the 2nd audio amplifier (SP_FR) output, thereby the drawback that sound equipment occurred listening to three-dimensionally.
(3) summary of the invention
The present invention designs in order to solve the above problems, its purpose is to provide the multi-track frequency output controlling method in a kind of optical disc apparatus, after the multichannel audio that is 5.1 sound channels that will read from the CD of DVD and so on and reduce is divided into the audio frequency of a left side/R channel and is mixed, controlling it when the earphone that possesses a left side/right channel loudspeaker is suitably exported, make the corresponding vibration of output level with woofer (Woofer) sound channel can pass to the user, even make the user use earphone also can listen to sound equipment three-dimensionally.
To achieve these goals, the multi-track frequency output controlling method in the optical disc apparatus of the present invention comprises following 3 steps: the 1st step, and under the state that connects earphone, the optical disc data that is inserted with in the reduction apparatus; The 2nd step reads and the audio frequency that reduces when being the multichannel audio of 5.1 sound channels from CD, multichannel audio is divided into a left side/R channel and mixes; The 3rd step, on a left side/right oscillator that will be applied to earphone with the horizontal corresponding driving voltage of output of woofer (Woofer) sound channel in above-mentioned several 5.1 sound channels in, by a left side/multichannel audio of right loudspeaker output of earphone through mixing.
Effect of the present invention:
Multi-track frequency output controlling method in the optical disc apparatus of the present invention, it is a very useful invention, be in the optical disc apparatus of DVD player and so on, under the state that connects earphone, when the audio frequency that reads from CD and reduce is the multichannel audio of 5.1 sound channels, when multichannel audio being divided into a left side/R channel and mixing, to be applied on a left side/right oscillator of earphone with the horizontal corresponding driving voltage of woofer (Woofer) sound channel output in 5.1 sound channels, by a left side/multichannel audio of right loudspeaker output of earphone, thereby even make the user use earphone also can listen to sound equipment through mixing three-dimensionally.
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.
(4) description of drawings
What Fig. 1 showed is that general optical disc device is connected the embodiment that uses with 6 audio amplifiers.
What Fig. 2 and Fig. 3 showed is the formation that adopts the optical disc apparatus of multi-track frequency output controlling method according to the present invention.
What Fig. 4 showed is the action flow chart that has adopted multi-track frequency output controlling method in the optical disc apparatus of the present invention.
The symbol description of major part in the accompanying drawing:
10: televisor 20:DVD player
30: telepilot 41～46: audio amplifier
21: CD 22: laser head
23:VDP system 24: audio frequency output control part
25: microcomputer 26: storer
(5) embodiment
Below just according to the desirable embodiment of multi-track frequency output controlling method in the optical disc apparatus of the present invention design, described in detail with reference to accompanying drawing.
At first, can be applied to the diversified optical disc apparatus of DVD player or DVD logging machine and so on according to multi-track frequency output controlling method in the optical disc apparatus of the present invention's design.For example, use DVD player of the present invention, as shown in Figure 2, can be by formations such as laser head 22, VDP (Video Disk Play) system 23, audio frequency output control part 24, microcomputer 25 and storeies 26.
Simultaneously, above-mentioned audio frequency control part 24, as shown in Figure 3, by dual-channel audio output port 240,5.1 channel audio output ports 241 and the switch 242 (L_SW), 243 (R_SW) that are used for selecting and exporting a left side/right audio channel of above-mentioned two-channel and the FL of 5.1 channel audios (Front Left) sound channel and FR (Front Right) channel audio constitute.
And, include and be used for divider 244,245 that mid-CT (Center) sound channel in 5.1 channel audios and woofer WF (Woofer) channel audio are carried out 2 sub-distribution; By microcomputer 25 control actions, start (Enable) during 5.1 channel audios in reduction, do not start frequency mixer 246 (L_Mix), 247 (R_Mix) of (Disable) during at the reduction dual-channel audio.
And, also include the horizontal detector 248 that is used for detecting WF channel audio level; Apply the DC driver 299 of driving voltage with generating with the corresponding direct current of horizontal detection value (DC) voltage and to a left side/right oscillator (L/RVibrator) that uses earphone of the present invention.
Simultaneously, the left side of earphone/right oscillator is arranged on and a left side/right loudspeaker position adjacent, will give the user with the corresponding vibration transfer of the audio output level of woofer channel; Above-mentioned microcomputer 25 is under the state that connects earphone, when the DVD CD 21 that is inserted with in installing reads and reduce 5.1 channel audios, control audio output control part 24 action makes audio frequency output and vibrates three-dimensionally and export, to being described in detail below this.
What Fig. 4 showed is relevant action flow chart according to the multi-track frequency output controlling method in the optical disc apparatus of the present invention's design.
S10, as mentioned above, under the state that connects earphone, microcomputer 25 is carried out the action of restoring data.
S11 at this moment, can check that the DVD CD 21 that is inserted with in install reads and the number of channels of the reduction audio frequency that reduces.
Does S12 judge whether 5.1 channel audios?
S13, after carrying out above-mentioned inspection, if the multichannel audio of 5.1 sound channels is when being reduced, when the switch in the audio frequency output control system 24 242,243 being carried out conversion and control, selection and export FL channel audio and FR channel audio in 5.1 channel audios, the frequency mixer 246,247 in the audio frequency output control part 24 is started.
S14, in view of the above, in the left frequency mixer (L_Mix) 246 that FL channel audio and RL channel audio by the output of 5.1 channel audio output ports 241 is transfused to startup, then by in the right frequency mixer (R_Mix) 247 that input starts respectively, CT channel audio and WF channel audio are imported respectively in left frequency mixer 246 and the right frequency mixer 247 after divider 244,245 carries out 1/2 distribution for FR channel audio and RR channel audio; Thereby in the left channel loudspeaker 301 of earphone output be FL channel audio, RL channel audio, by the 1/2 CT channel audio that distributes, by the 1/2 WF channel audio that distributes, in the right channel loudspeaker 302 of earphone output be FR channel audio, RR channel audio, by the 1/2 CT channel audio that distributes, by the 1/2 WF channel audio that distributes.
S15, on the one hand, horizontal detector 248 detects the level of WF channel audio, and 299 generations of DC driver and the corresponding direct current of horizontal detection value (DC) voltage apply driving voltage to a left side/right oscillator (L/R Vibrator) of earphone; Simultaneously, will give the user, even thereby make the user use earphone also can listen to sound equipment three-dimensionally with the corresponding vibration transfer of woofer audio level.
S16, on the other hand, in flow process S12, after if microcomputer 25 is checked, be that dual-channel audio is when being reduced, in the L channel audio and R channel audio in the switch in the audio frequency output control part 24 242,243 being carried out conversion and control, selection and output dual-channel audio, make the frequency mixer in the audio frequency output control part 24 not start (Disable).
S17, and, carry out also that a left side by earphone/right channel loudspeaker is distinguished and the ordinary audio output action of the two-channel sound equipment of output L/R sound channel.
Does S18 afterwards, judge that homing action finishes? if do not finish, get back to flow process S11, till homing action finishes, carry out audio frequency output control action repeatedly.
Optical disc apparatus of the present invention is DVD burner or DVD player, described CD be the special-purpose DVD of reduction, can 1 time imprinting DVD maybe can repeat imprinting DVD one of them.
The embodiment of the invention described above is for realizing that aforementioned purpose is described, the person skilled in 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 (5)
1, the multi-track frequency output controlling method in a kind of optical disc apparatus is characterized in that comprising following steps:
The 1st step, under the state that connects earphone, the optical disc data that is inserted with in the reduction optical disc apparatus;
The 2nd step reads and the audio frequency that reduces when being the multichannel audio of 5.1 sound channels from CD, multichannel audio is divided into a left side/R channel and mixes;
The 3rd step, on a left side/right oscillator that will be applied to earphone with the horizontal corresponding driving voltage of output of woofer channel in above-mentioned several 5.1 sound channels in, by a left side/multichannel audio of right loudspeaker output of earphone through mixing.
2, the multi-track frequency output controlling method in the optical disc apparatus as claimed in claim 1 is characterized in that:
When described audio frequency is dual-channel audio, also comprise the step of a left side/right loudspeaker output dual-channel audio by earphone.
3, the multi-track frequency output controlling method in the optical disc apparatus as claimed in claim 1 is characterized in that:
In described the 2nd step, after the audio frequency to center channels in 5.1 channel audios and woofer channel carries out 2 sub-distribution, to be L channel through the audio frequency of 2 sub-distribution and the audio mix of FL sound channel and RL sound channel, will be R channel through another audio frequency of 2 sub-distribution and the audio mix of FR sound channel and RR sound channel.
4, the multi-track frequency output controlling method in the optical disc apparatus as claimed in claim 1 is characterized in that:
Left side/right oscillator by described earphone will be given the user according to the vibration transfer that the driving voltage level produces.
5, the multi-track frequency output controlling method in the optical disc apparatus as claimed in claim 1 is characterized in that:
Described optical disc apparatus is DVD burner or DVD player, described CD be the special-purpose DVD of reduction, can 1 time imprinting DVD maybe can repeat imprinting DVD one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052735 CN1722274A (en) | 2004-07-12 | 2004-07-12 | Multi-channel audio frequency output control method for CD device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052735 CN1722274A (en) | 2004-07-12 | 2004-07-12 | Multi-channel audio frequency output control method for CD device |
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| CN1722274A true CN1722274A (en) | 2006-01-18 |
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| CN 200410052735 Pending CN1722274A (en) | 2004-07-12 | 2004-07-12 | Multi-channel audio frequency output control method for CD device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111258530A (en) * | 2020-01-09 | 2020-06-09 | 珠海格力电器股份有限公司 | Audio playing control method, server and audio playing system |
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- 2004-07-12 CN CN 200410052735 patent/CN1722274A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111258530A (en) * | 2020-01-09 | 2020-06-09 | 珠海格力电器股份有限公司 | Audio playing control method, server and audio playing system |
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