| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately adjust acoustic characteristics by ensuring that the sound to be picked up by a microphone is truly the sound of a speaker to adjust the acoustic characteristics when an electric signal of audio is amplified and output from the speaker as a sound and the speaker sound is picked up by the microphone to adjust the acoustic characteristics. <P>SOLUTION: Connection confirming parts 22-27 are provided for confirming connection from pressure when connecting cables of speakers to connecting parts 16-21 to speakers 34-39, respectively, a CPU 29 receives connection notification contents of the connection confirming parts 22-27, and a DSP 4 adjusts acoustic characteristics regarding a result of the judgement. <P>COPYRIGHT: (C)2008,JPO&INPIT |
