| 摘要 |
PURPOSE:To eliminate foldover noise without increasing hardwares at the time of generating acoustic signals in the acoustic signal generator of the sound source of an electronic musical instrument or the like. CONSTITUTION:For one sounding instruction, to a waveform data memory, in a first sounding channel, the read of waveform data A from a waveform address specified by the sounding instruction with a step width specified by the sounding instruction is instructed. Simultaneously, in a second sounding channel, the read of the waveform data B from the waveform address obtained by adding an offset value which is 1/2 of the step width to the waveform address specified by the sounding instruction with the step width is instructed. The waveform data A and B are successively outputted to a D/A converter as the waveform data A+B in a cycle which is 1/2 of a sampling cycle. |
