KR20040087714A - Apparatus for multi channel audio in compound device - Google Patents

Abstract

PURPOSE: A multi-channel audio output device in a composite video apparatus is provided to automatically output a multi-channel audio of a converted second video apparatus if a level of the second channel audio is more than a predetermined level. CONSTITUTION: A 5.1 channel converter(205) converts right/left channel audios outputted from a VCR(204) into a 5.1 channel audio. A level detector(206) detects a level of the right/left channel audios. A microcomputer(207) controls an operation of a switch(202) according to the detected audio level. A level controller(203) individually outputs audios of multiple channels selectively outputted through the switch(202) to plural speakers distributed in different positions, and variably controls a level of an output audio under control of the microcomputer(207).

Description

Apparatus for multi channel audio in compound device}

The present invention relates to a multi-channel audio output device in a composite video device, and more particularly, a first video device such as a DVD-P and a second video device such as a VCR. The present invention relates to a multi-channel audio output device in a composite video device.

Recently, high-density optical discs such as DVDs, which can record and store high-quality video data and high-quality audio data for a long time, have been developed and commercialized. A composite video device in which a device and a second video device such as VCR are integrated has been developed and commercialized.

On the other hand, the DVD player included in the composite video device is connected to the television to reproduce and output high-definition video data, and a plurality of speakers that are distributed to the different locations of the multi-channel audio read out and reproduced from the DVD, For example, through six speakers, three-dimensional reproduction output.

Therefore, the user can listen to the multi-channel audio through a plurality of different speakers while watching a high-definition video image reproduced and output from the DVD player of the composite video apparatus through a plurality of different speakers.

However, in the VR included in the composite video apparatus, since only the left and right two channels of audio are reproduced and outputted, all six speakers cannot be used, and thus stereoscopic reproduction of audio is impossible.

Accordingly, the present invention has been made to solve the above problems, and in the composite video device in which a first video device such as a DVD player and a second video device such as a V-C are integrated, When the two-channel audio read out from the tape recording medium is converted similarly to the multi-channel audio read out from the disc recording medium of the first video device, and the level of the two-channel audio becomes more than a predetermined level, It is an object of the present invention to provide a multi-channel audio output device in a composite video device for automatically selecting and outputting the multi-channel audio of the converted second video device.

1 is a diagram illustrating a state in which a multi-channel audio output apparatus according to the present invention is connected to a composite video apparatus and each speaker connected thereto.

2 illustrates a configuration of a multi-channel audio output device in a composite video device according to the present invention.

3 illustrates a configuration of a 5.1 channel converter according to the present invention.

※ Explanation of code for main part of drawing

10: television 20: composite video equipment

30: remote control 41 to 46: speaker

201: DVD Player 202: Switch

203: level adjuster 204: VRC

205: 5.1-channel converter 206: level detector

207: micom

In order to achieve the above object, a multi-channel audio output apparatus of a composite video apparatus according to the present invention includes a disk recording medium of the first video apparatus in a composite video apparatus in which a first video apparatus and a second video apparatus are integrated. Audio output means for outputting audio of a multi-channel read out from a different path; Audio converting means for converting two channels of audio read out from the tape recording medium of the second video device into the same number of channels as the multiple channels of audio; Audio switching means for selectively outputting any one of the converted audio of the second video device and the audio of the first video device; And control means for operationally controlling the audio switching means according to the two-channel audio level of the second image device.

Hereinafter, exemplary embodiments of a multi-channel audio output apparatus in a composite imager according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view illustrating a state in which a composite video device to which a multi-channel audio output device according to the present invention is applied and each speaker are connected and connected. ) Is connected to the television 10 to display and display the playback video of the VR or DVD player, and also to distribute the playback audio of the VR or DVD player to different locations, for example, 6 speakers. Three speakers are reproduced in three dimensions.

On the other hand, the six speakers, the first speaker (SP_FL: Speaker Front Left) 41 is installed on the front left side based on the user located in the center, and the second speaker (SP_FR: Front Right) (installed on the front right) ( 42), a third speaker (SP_C: Center) 43 installed at the front center, a fourth speaker (SP_W: Woffer) 44 installed at the center left, and a fifth speaker SP_RL provided at the rear left : Rear Left (45) and the sixth speaker (SP_RR: Rear Right) 46 provided on the right side of the rear, are distributed in different positions.

In addition, as shown in FIG. 2, the composite video apparatus 20 includes a DVD player 201, a switch 202, a level adjuster 203, a BC 204, a 5.1 channel converter 205, and a level. The detector 206, the microcomputer 207, and the like may be configured. In the 5.1-channel converter 205, left and right two-channel audio (Audio_L, Audio_R) reproduced and output from the VRC 204 may be included. The multi-channel audio, that is, 5.1 channel audio, reproduced and output from the DVD player 201 is converted.

The level detector 206 detects the level of the left and right two-channel audio reproduced and output from the V-Cal. The microcomputer 207 detects the level of the audio signal detected by the level detector. Operation of the switch 202 is controlled.

For example, when the reproduction operation is performed in the VRC 204, the level detector 206 detects the level of the audio reproduced and output in the VRL, and in the 5.1 channel converter 205, The left and right two-channel audio reproduced and output from V-Cal are converted similarly to the multi-channel audio of the DVD. The 5.1-channel converter includes left and right two-channel audio (as shown in FIG. 3). After summing Audio_L and Audio_R, an audio operation unit ((L + R) / 2) 2050 for outputting by dividing by '2' may be included.

In addition, the three audio for separately outputting the audio (Audio_L, Audio_R) of the two left and right channels and 'Audio_ (L + R) / 2' through the audio operation unit as audio of the first to sixth channels, respectively Separators 2051, 2052, and 2053 may be included, wherein the multichannel audio converted by the 5.1 channel converter 205 is input to the switch 202, and in the microcomputer 207, When a predetermined level or more is detected by the level detector, the switch 202 is operatively controlled so that the multi-channel audio converted by the 5.1 channel converter is selectively output.

On the other hand, the level adjuster 203, and outputs the multi-channel audio selectively output through the switch 202 to a plurality of speakers distributed in different positions, respectively, and of the microcomputer 207 According to the operation control, a series of operations for varying the level of the output audio are performed.

Therefore, the user can watch the video image played from the V-Cal included in the composite video apparatus through the television, and the left / right 2 channel audio played from the V-Cal is the same as when playing the DVD player. For example, six speakers can be used to listen in three dimensions.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The multi-channel audio output device of the composite video device according to the present invention constructed and configured as described above is a composite video device in which a first video device such as a DVD player and a second video device such as a BD are integrally formed. The two-channel audio read out from the tape recording medium of the second video device is converted similarly to the multi-channel audio read out from the disk recording medium of the first video device, and the level of the two-channel audio is at a predetermined level. In case of abnormality, six speakers installed for the multi-channel audio of the first video device such as a DVD player are automatically selected and outputted by outputting the multi-channel audio of the converted second video device to a second video such as V-Cal. It is a very useful invention that can be efficiently used to output playback audio of a device.

Claims (4)

In the composite video device in which the first video device and the second video device are integrated, Audio output means for outputting multiple channels of audio read out from the disc recording medium of the first video apparatus through different paths; Audio conversion means for converting two channels of audio read out from the tape recording medium of the second imaging device into the same number of channels as the multiple channels of audio; Audio switching means for selectively outputting any one of the converted audio of the second video device and the audio of the first video device; And And a control means for operating and controlling the audio switching means according to the two channel audio level of the second image device. The method of claim 1, And said second video device is a VR, and further comprising detection means for detecting a 2-channel audio level of said VR. The method of claim 1, And the audio converting means converts the left and right channel audio of the second video device into six audio channels. The method of claim 3, wherein The six audio channels include a first speaker FL installed at the front left side, a second speaker FR installed at the front right side, a third speaker C installed at the front center side, and a fourth speaker installed at the center left side. (W), the multi-channel audio output device in a composite video device, characterized in that the output is respectively output to the fifth speaker (RL) installed on the rear left, the sixth speaker (RR) installed on the rear right.