| 摘要 |
PURPOSE: A sound supporting device using an FM transmitter is provided to supply various surround sounds by receiving an audio signal of a computer main body(audio card), modulating the audio signal into a specific band frequency, and outputting the modulated signal through an audio device without purchasing a sound device such as an expensive home theater additionally. CONSTITUTION: A signal being supplied from an output terminal of a computer terminal which reads an MP3 file or an AVI file and converts the file into an audio signal or a peripheral device(100) such as an MP3 player or a CD player is received. The received signal is converted into a sound, and various surround sounds are output. An FM transmitter(200) receives an audio signal being output from a sound card of a main body of the computer terminal, converts the supplied signal into fixed sizes, loads a high frequency component in the signal, selects a specific band frequency of the signal through a modulation process, amplifies the modulated specific band frequency, and outputs the specific band frequency to an exterior. An audio device(300) selects and receives the output specific band frequency as the frequency band, demodulates the specific band frequency, and outputs various surround sounds.
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