| 摘要 |
PROBLEM TO BE SOLVED: To realize a fluctuation matched with the quality of music sound by permitting the fluctuation to correspond to an envelope, partially repeating the reading of data in the fluctuation, storing and reading fluctuation data at every tone, compass or touch response in when the fluctuation is added to the musical factor of music sound. SOLUTION: Fluctuation data SW stored in a fluctuation data memory 21 at every tone, compass or touch response are read based on address data which are accumulated by an address register 25 and an adder 26 and synthesized with frequency number data by addition and, then, a frequency is modulated. When the envelope is shifted from an attack to a decay, a loop top LT is selected as address data with selectors 27 and 30 and fluctuation data SW between the loop top LT to a loop end LE are repeatedly read out during the decay. When a shift is executed from the decay to a release, the loop end LE is selected as address data with the selectors 27 and 30 and fluctuation data SW after the loop end LE are read out during the release. |
