| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform performance of rich expression as preventing occurrence of overflow in controlling musical waveform data. <P>SOLUTION: An amplitude value of the musical waveform data can be increased according to resonance values Q1 to Qn within a range that no overflow occurs by outputting the musical waveform data having amplitude according to amplitude control data ACD by multiplying the amplitude control data ACD selected from a data table 40 based on a resonance value Q, a key identification signal and tone information by the musical waveform data controlled by a desired filter characteristic by a filter circuit 23 by a first multiplier 25. <P>COPYRIGHT: (C)2004,JPO |
