| 摘要 |
PROBLEM TO BE SOLVED: To provide a waveform data processing device for synthesizing the waveforms of a loop part without impairing each other's phase relations from plural waveforms. SOLUTION: In synthesizing the loop waveforms in accordance with the frequency components obtained by subjecting stereoscopic waveforms to an STF(short time Fourier analysis), the loop lengths of left and right channels are made equal by making the loop length of the waveform data of Rch coincident with the loop length determined in accordance with the waveform data of Lch. The values of the F numbers of the two sound production channels are made the same, by which the phase relations in terms of time of the waveforms of the respective channels may be kept constant. The base tone component of Rch is subjected to the conventional loop smoothing processing. |
