| 摘要 |
Memory means is provided such that it is capable of reading and writing tone source control data for an available number of channels. Each channel time is divided into two divisions for instance. In the first half of each channel time, tone source control data for the channel corresponding to the current channel time is read out from the memory means, and in the second half of channel time tone source control data of a given designated channel for setting data is written in the memory means. In this way, tone source control data can be set speedily even if the polyphonic channels are increased in number. Further, with an increased number of polyphonic channels it is possible to synchronize the phase of each tone in a tone mixing mode even when a frequency change is caused by a pitch bender or a vibrato. |
