METHOD AND DEVICE FOR EXTRACTING SOUND TURNING POINT, METHOD AND DEVICE FOR SOUND REPRODUCING, SOUND REPRODUCING SYSTEM, SOUND DELIVERY SYSTEM, INFORMATION PROVIDING DEVICE, SOUND SIGNAL EDITING DEVICE, RECORDING MEDIUM FOR SOUND TURNING POINT EXTRACTION METHOD PROGRAM, RECORDING MEDIUM FOR SOUND REPRODUCING METHOD PROGRAM, RECORDING MEDIUM FOR SOUND SIGNAL EDITING METHOD PROGRAM, SOUND TURNING POINT EXTRACTION METHOD PROGRAM, SOUND REPRODUCING METHOD PROGRAM, AND SOUND SIGNAL EDITING METHOD PROGRAM

摘要

PPROBLEM TO BE SOLVED: To provide a method and a device for quickly reproducing or editing sounds from a sound turning point indicating an acoustic boundary of a musical piece. PSOLUTION: A feature quantity extraction means 12 extracts an acoustic feature quantity from the sound signal of the musical piece. A peak detection means 14 detects a peak time, when an evaluation function calculated by an evaluation function calculation means 13 has a maximum value, and the peak value. A selection means 15 selects time information indicating an acoustic turning point in accordance with the peak time and the peak value. Thus a user can automatically extract the acoustic turning point without preliminarily hearing the musical piece. PCOPYRIGHT: (C)2003,JPO