| 摘要 |
PURPOSE: An apparatus for switching audio output of computer sound card is provided to select a maximum output volume of a headphone by adjusting volume outputted through the headphone. CONSTITUTION: An audio output signal processed in an inner portion of a sound card is divided into a R channel and a L channel through a speaker plug(25), and signals divided into the R channel and the L channel are outputted to an amplifying speaker jack(23) and are outputted to a headphone having a mike through a headphone jack(17). A plug of an amplifying speaker is inserted into the amplifying speaker jack(23) for amplifying an audio output of the sound card. An audio signal inputted from the outside through a mike jack(16) is provided to a mike input terminal and is processed.
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