| 摘要 |
PROBLEM TO BE SOLVED: To provide a musical sound signal processing device by which the waveform itself of a musical sound signal can be quantized. SOLUTION: A peak is detected from a musical sound signal waveform by peak detection, and based on the peak, respective unit musical sound signals (a musical sound signal generated by one time percussion or play) are cut-out. A cut-out is conducted from a peak to before the next peak. Thereby, the respective musical sound signals are cut-out The respective cut-out unit musical sound signals are moved so that the timing of the peaks becomes the accurate beat timing. After the movement, the musical sound signals are time-stretched so that the respective unit musical sound signals are smoothly connected therebetween. The time-stretch is conducted so as not to change a frequency. Thereafter, the front and rear unit musical sound signals are cross-faded to be smoothly connected. Thereby, the musical sound signals are quantized as saving the waveforms as they are. |
