| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an audio signal processing apparatus capable of improving the sound quality of reproduced sound of an audio signal when sound volume control over the multi-channel audio signal is performed. <P>SOLUTION: It is determined whether an audio signal of a center channel and audio signals of other channels are similar (S112). When it is determined that they are not similar (YES at S114), sound volume control processing A is performed on the audio signal of the center channel (S115). A first controlled audio signal having the sound volume controlled through the sound volume control processing A is output. When it is determined that the audio signals are similar (NO at S114), sound volume control processing BN is carried out on audio signals of one or more other channels and the audio signal of the center channel (116N), and all second controlled audio signals having the sound volume controlled through the sound volume control processing BN are output. <P>COPYRIGHT: (C)2010,JPO&INPIT |
