| 摘要 |
<P>PROBLEM TO BE SOLVED: To lighten a processing load, when a false low-pitched sound is generated in an electronic musical instrument etc. <P>SOLUTION: On the basis of data 50 representing the lowest frequency that a speaker etc., can reproduce and raw material waveform data 30, normal musical sound waveform data 38 and false low-pitched sound waveform data 52 are generated. False low-pitched sound waveform data 52 are generated by pitches or registers below the lowest frequency and are reproduced together with the normal musical sound waveform data 38. Further, the level of the false low-pitched sound waveform data 52 is made lower than that of the normal musical sound waveform data 38, on the basis of an equal-loudness curve so that a feeling of sound volume to the normal musical sound waveform data 38 is held. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
