Patent ID: 7745714
Filing Date: 2010-06-29
Classification: G10H

Abstract:
1. An apparatus implementing at least recording or playback that detects a music section from an audio signal, comprising: a cut point detector that detects a time point as a cut point where a level of an audio signal or an amount of change in the audio signal level is equal to or more than a predetermined value; a frequency characteristic calculator that calculates a characteristic in a frequency domain of the audio signal only at each cut point; a music section detector that detects a start point and an end point of a music section; and an attribute determining unit that determines whether the audio signal at each cut point belongs to a music section or to a non-music section on a basis of the characteristic calculated by the frequency characteristic calculator; wherein the music section detector presumes that the audio signal between non-music section is a music section, when a time interval between two neighboring non-music section is not shorter than a predetermined length of time.