Automatic Audio Switching for High-Definition Television (HDTV)

摘要

The present invention relates to a method of converting an audio output form according to a type of a signal input from a high definition television (HDTV) that can be used as a monitor of a personal computer. To this end, the present invention relates to a PC video signal input to an input means. And a mode discriminator for generating a mode discrimination signal corresponding to an input video signal based on a synchronization signal of an HDTV video signal, and a plurality of channels for controlling audio output of a plurality of channels in response to the mode discrimination signal from the mode discriminator. A control unit for generating a control signal, the first switching unit for selectively switching the left and right audio signals of the PC and the left and right audio signals of the HDTV based on the control signal from the control unit, the input image is an HDTV image In this case, on the basis of control signals from the control unit, mid-range, bass, left surround, and right surround audio of the multi-channel of HDTV A second amplifier for switching an erroneous signal, a first amplifier for amplifying each of the selected left and right audio signals provided through the first switching unit to a predetermined predetermined level and outputting them to respective speakers, and a middle tone provided from the second switching unit And a second amplifier for amplifying the bass, left surround, and right surround audio signals to a predetermined predetermined level and outputting the amplified audio signals to respective speakers.