AUDIO SYSTEM AND METHOD FOR CONTROLLING OUTPUT THE SAME

摘要

PURPOSE: The audio system and output-controlling method can seclude the noise from outside by together outputting the audio signal and reverse phase signal. CONSTITUTION: The source unit(100) has the audio signal. The receiver(300) is created the cancellation signal for offsetting the audio signal if the audio signal is transmitted. The first speaker(320) outputs the audio signal. The second speaker(330) outputs the cancellation signal. The mode setting part establishes the correct pronunciation of a letter mode.