| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately execute delay-time adjustment on the basis of a test signal outputted from each speaker without using a measurement microphone while reducing a load of a calculation processing part. <P>SOLUTION: An audio signal output device is provided with a delay-time adjustment part for adjusting signal delay times of a plurality of channels, an output part for outputting a signal, a test signal generation part for outputting first/second test signals, a test signal switching part for switching the output of the first test signal and that of the second test signal, a first signal switching part for switching the first test signal and the second test signal so as to output either of them to a specific channel, a second signal switching part for switching the first test signal and the second test signal which are generated by inverting a phase of the first test signal and that of the second test signal so as to output either of them to a measurement channel, an operation part for adjusting the delay time and the switching the specific channel and the measurement channel, and a control part that executes control for adjusting a delay time of the measurement channel while outputting the first test signal or the second test signal transmitted from the first signal switching part of the specific channel and the first test signal or the second test signal transmitted from the second signal switching part of the measurement channel. <P>COPYRIGHT: (C)2008,JPO&INPIT |
