Patent ID: 7756390

Claim:
A video signal separation information setting method utilizing audio modes which is a method for fetching an audio signal from an audio signal processing section and analyzing and processing a signal state in an apparatus which processes signals from a video signal processing section and the audio signal processing section, comprising: determining whether one of total length and ratio of periods in which the audio signal is set in a first mode with respect to total length of a recorded program video signal is not larger than a corresponding one of preset length and preset ratio, determining that an audio mode of a main body portion of the recorded video signal is a second mode when one of the total length and ratio is not larger than the corresponding one of the preset length and ratio, determining that the audio mode of the main body portion is the first mode when the audio mode is not the second mode, selecting and setting an adaptive processing section which forms separation information of a desired period of the video signal according to the above determination result, and storing separation information formed in the thus set adaptive processing section.