CN1625303A - Output amplitude regulator of multi-channel audio frequency - Google Patents
Output amplitude regulator of multi-channel audio frequency Download PDFInfo
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- CN1625303A CN1625303A CN 200310112467 CN200310112467A CN1625303A CN 1625303 A CN1625303 A CN 1625303A CN 200310112467 CN200310112467 CN 200310112467 CN 200310112467 A CN200310112467 A CN 200310112467A CN 1625303 A CN1625303 A CN 1625303A
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Abstract
This invention is an amplitude adjusting device of multi-soundtrack audio-frequency output. It includes the broadcast system which reads the video and audio recorded on the playing harddisk, the magnetic tape, and the DVD disk, the OSD making part, and also includes the storing device, the controlling device, and the adjusting device. This invention stores and manages amplitude adjusting information that can alterablely adjust the audio output frequency of the low-frequency sub-loudhailer according to the output amplitude of the multi-master-soundtrack audio in the digital device such as family-theater. Meantime, consulting the above-mentioned amplitude adjusting information , it will correspondingly increase the audio amplitude passing by the low-frequency sub-loudhailer when the output amplitude of the above-mentioned master-soundtrack is low, so as to output abundant bourdonal and accentual effect through the low-frequency sub-loudhailer even if users turn the controlling volume rather lowly. Therefore, users can hear high quality broadcast audio of strong third dimension.
Description
(1) technical field
The invention relates to digital devices such as home theater, refer in particular in the digital audio device that has connected a plurality of loud speakers, variable adjustment is to the output amplitude adjusting device of a kind of multichannel audio of the audio frequency output amplitude of outside output multichannel audio neutron woofer (sub-woofer) usefulness.
(2) background technology
Recently, digital devices such as home theater are constantly popularized, above-mentioned home theater can be play and read DVD, hard disk (HDD), the video and the audio frequency that write down on the tape multiple recording mediums such as (TAPE) can be shown to the video output of reading on the above-mentioned recording medium simultaneously on the big picture of television set etc.
In addition, above-mentioned home theater is the audio frequency that reads on the above-mentioned recording medium, such as 6 loud speakers of audio frequency by being scattered in diverse location of 5.1 sound channels that read broadcast on the DVD are with each channel separation output.
Therefore, the stereopsis result of broadcast of 5.1 sound channels that the user who has an above-mentioned home theater just can be by above-mentioned six loud speakers output, but also can carry out easy volume control operation by being arranged on a volume control key on the remote controller.The output amplitude of multichannel audio is adjusted to suitable amplitude, and just can listen to has needed big or small sound.
But, as mentioned above, even the volume control key on user's remote controller, multichannel audio is carried out output amplitude to be regulated, can not mediate to the audio amplitude that the sub-woofer of the output mega bass in above-mentioned 6 loud speakers is exported, so can not effectively improve the modelling effect of audio frequency.Especially, when by volume control key the output amplitude of multichannel audio being turned down, the problem of abundant bass effect will appear exporting.
(3) summary of the invention
The present invention proposes in order to address the above problem, the object of the present invention is to provide a kind of output amplitude adjusting device of multichannel audio, this device is in the middle of the digital devices such as home theater that connected a plurality of loud speakers, when the output amplitude of multichannel audio is carried out variable adjustment, can carry out variable adjustment to the output amplitude of sub-woofer of the audio frequency of output bass effect, simultaneously, even the user turns down the value of control volume, also can be by the abundant supper bass of sub-woofer output.
To achieve these goals, the output amplitude adjusting device of multichannel audio of the present invention comprises: read and play the Play System that hard disk, tape and DVD go up the video/audio of record; The OSD generating unit is characterized in that also comprising:
Storage device is stored amplitude in advance and is regulated information, carries out variable adjustment according to the output amplitude of the sub-low-frequency channel of output amplitude antithetical phrase woofer of a plurality of sound channels;
Control device is regulated information according to described amplitude, when the output amplitude of main sound channel is hanged down, just exports control signal, is used for improving relatively the output amplitude of described sub-low-frequency channel;
Adjusting device according to described control signal, is carried out variable adjustment to the output amplitude of described main sound channel and sub-low-frequency channel respectively, then output.
Effect of the present invention:
The multichannel audio output amplitude adjusting device of the present invention that has above-mentioned formation and operate as mentioned above, in the middle of digital devices such as home theater, storage administration in advance can be regulated information according to the amplitude that the audio frequency output amplitude of the output amplitude antithetical phrase woofer of a plurality of main sound channel audio frequency is carried out variable adjustment.Simultaneously, regulate information with reference to above-mentioned amplitude, when the output amplitude of above-mentioned main sound channel is hanged down, will improve audio amplitude relatively by sub-woofer output, thereby can be when even the user will control hanging down of volume accent, also can get the very strong high-grade audio plays of third dimension thereby can allow the user listen by the abundant low stress effect of sub-woofer output.
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
Fig. 1 has used the digital device of output amplitude adjusting device of multichannel audio of the present invention and the jockey figure of a plurality of loud speakers;
Fig. 2 is the structure chart of digital device of having used the output amplitude adjusting device of multichannel audio of the present invention;
Fig. 3 is the sub-woofer that is connected with the volume control value of the present invention change curve with the output amplitude value.
The symbol description of major part in the accompanying drawing
10, television set 20, digital device
30, remote controller 41-46, loud speaker
200, hard disk 201, tape
202, DVD 203, Play System
204, microprocessor 205, memory
206, OSD generating unit 207, audio amplitude adjusting portion
(5) embodiment
Below, the embodiment to the output amplitude adjusting device of multichannel audio of the present invention is elaborated with reference to the accompanying drawings.
Fig. 1 has used the digital device of output amplitude adjusting device of multichannel audio of the present invention and the jockey figure of a plurality of loud speakers.As previously mentioned, digital devices such as home theater 20 are connected with television set 10 and play the video data of output high image quality, in addition by with a plurality of loud speakers that are dispersed on the diverse location, such as, be connected the stereo audio data of output high tone quality respectively with six loud speaker 41-46.
Above-mentioned six loud speakers comprise: with the user who is positioned at central authorities is benchmark the 1st loud speaker SP1 (FL) (SP_FL:Speaker Front Left) 41 in left side before different positions is set to respectively, the 2nd loud speaker SP2 (FR) (SP_FR:Speaker Front Right) 42 on preceding right side, the 3rd loud speaker SP3 (C) (SP_C:Speaker Center) 43 of preceding central authorities, the 4th loud speaker SP (W) (SP_W:Speaker Woofer) 44 in central authorities left side, the 5th loud speaker SP5 (RL) (SP_RL:Speaker Rear Left) 45 in left side, back, the 6th loud speaker SP6 (RR) 6 (SP_RR:Speaker Rear Right) 46 of back right side of face.
The digital device 20 of the invention described above mainly comprises: storage device, and store amplitude in advance and regulate information, carry out variable adjustment according to the output amplitude of the sub-low-frequency channel of output amplitude antithetical phrase woofer of a plurality of sound channels; Control device is regulated information with reference to described amplitude, when the output amplitude of main sound channel is hanged down, just exports control signal, is used for improving relatively the output amplitude of described sub-low-frequency channel; Adjusting device according to described control signal, is carried out variable adjustment to the output amplitude of described main sound channel and sub-low-frequency channel respectively, then output.
An embodiment of the digital device 20 of the invention described above comprises as shown in Figure 2: reads and plays hard disk HDD200, and tape 201, and DVD202 goes up the Play System 203 of the video/audio of record; OSD generating unit 206.Also comprise: control device is a microprocessor 204; Storage device is an eeprom memory 205;
Adjusting device is an audio amplitude adjusting portion 207 etc.
In addition, the volume control operation key of above-mentioned microprocessor 204 on devices such as user's remote controller, when the output amplitude of multichannel audio is mediated, will be by the above-mentioned audio amplitude adjusting portion 207 of microprocessor 204 operation controls, will according to the value of above-mentioned volume control key output carry out a series of variable adjustment operation by the output amplitude of the main sound channel audio frequency that above-mentioned 1-the 6th loud speaker SP1 (FL) 41, SP2 (FR) 42, SP3 (C) 43, SP4 (W) 44, SP5 (RL) 45 and SP6 (RR) 46 export respectively this moment.
And, the output amplitude of the sub-low-frequency channel of above-mentioned the 4th loud speaker SP4 (W) 44 output can be retrieved output amplitude with reference to the above-mentioned main sound channel amplitude of setting that is connected and regulate information, such as, as shown in Figure 3, when the volume control value of maximum is hanged down, will be set at than higher amplitude, simultaneously, when the volume control value of above-mentioned maximum is high, will be set at the information of lower amplitude, thereby the audio frequency output amplitude of corresponding sub-woofer is carried out variable adjustment.
In addition, above-mentioned amplitude is regulated information, as shown in Figure 2, can be stored in advance on the permanent memory 205 such as electricallyerasable ROM (EEROM) EEPROM, in the middle of the present invention, regulate information according to the above-mentioned amplitude that is stored management, when the user turns down the control volume, the output amplitude of sub-woofer will uprise, and when the user heightened the control volume, the output amplitude of sub-woofer will step-down.
Like this, the output amplitude that the user just not only can select suitably big or small volume to come the variable adjustment multichannel audio, and, even when the output amplitude of main sound channel audio frequency is turned down, also raising that can be relative is got abundant low stress effect by the audio amplitude of sub-woofer output thereby can allow the user listen.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not 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 distortion of the above embodiment.
Claims (4)
1, a kind of output amplitude adjusting device of multichannel audio comprises: read and play the Play System that hard disk, tape and DVD go up the video/audio of record, the OSD generating unit is characterized in that also comprising:
Storage device is stored amplitude in advance and is regulated information, carries out variable adjustment according to the output amplitude of the sub-low-frequency channel of output amplitude antithetical phrase woofer of a plurality of sound channels;
Control device is regulated information with reference to described amplitude, when the output amplitude of main sound channel is hanged down, just exports control signal, is used for improving relatively the output amplitude of described sub-low-frequency channel;
Adjusting device according to described control signal, is carried out variable adjustment to the output amplitude of described main sound channel and sub-low-frequency channel respectively, then output.
2, the output amplitude adjusting device of multichannel audio as claimed in claim 1 is characterized in that:
Described amplitude adjusting information is exactly when volume control value is low, audio amplitude by described sub-woofer output will be set at than higher amplitude, simultaneously, when described volume control value is high, described audio amplitude by sub-woofer output will be set at the information of lower amplitude.
3, the output amplitude adjusting device of multichannel audio as claimed in claim 1 is characterized in that:
Described control device is the amplitude adjusting information that the output amplitude of the described main sound channel of retrieval reference is connected and sets, thereby control signal corresponding is transported to described adjusting device.
4, the output amplitude adjusting device of multichannel audio as claimed in claim 1 is characterized in that:
Described adjusting device is according to described control signal, the audio frequency of the multichannel audio that installs domestic broadcast or outside input carried out the variable adjustment of the audio frequency output amplitude of main sound channel and sub-woofer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310112467 CN1625303A (en) | 2003-12-02 | 2003-12-02 | Output amplitude regulator of multi-channel audio frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310112467 CN1625303A (en) | 2003-12-02 | 2003-12-02 | Output amplitude regulator of multi-channel audio frequency |
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| Publication Number | Publication Date |
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| CN1625303A true CN1625303A (en) | 2005-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310112467 Pending CN1625303A (en) | 2003-12-02 | 2003-12-02 | Output amplitude regulator of multi-channel audio frequency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8374361B2 (en) | 2008-07-29 | 2013-02-12 | Lg Electronics Inc. | Method and an apparatus for processing an audio signal |
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2003
- 2003-12-02 CN CN 200310112467 patent/CN1625303A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8374361B2 (en) | 2008-07-29 | 2013-02-12 | Lg Electronics Inc. | Method and an apparatus for processing an audio signal |
| CN102113313B (en) * | 2008-07-29 | 2013-10-30 | Lg电子株式会社 | Method and apparatus for processing audio signal |
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