VIDEO/AUDIO SIGNAL PROCESSING APPARATUS AND VIDEO/AUDIO SIGNAL PROCESSING METHOD

PROBLEM TO BE SOLVED: To perform the processing of an audio signal having a high degree of freedom when outputting an asynchronous video signal on which an audio signal is superposed as a video signal synchronized with a reference signal. SOLUTION: A video signal DSa on which an audio signal is superposed is written in a memory 16. The video signal written in the memory 16 is read out synchronously with a reference signal. An audio signal DAa (DAb) separated from the video signal or an input audio signal DAc is written in a memory 26. The audio signal written in the memory 26 is read synchronously with a reference signal. Instead of an audio signal superposed on a video signal DSb (DSc) read out from the memory 16, a multiplexor 33 superposes an audio signal DAe (DAf) read from the memory 26. Since the audio signal is stored separately from the video signal, the processing of an audio signal having a high degree of freedom can be performed by using the separately stored audio signal. COPYRIGHT: (C)2010,JPO&INPIT