| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a musical tone signal generating apparatus whose processing speed is improved. <P>SOLUTION: A CPU 19a performs reservation and cancellation of a tone generating channel for generating a musical tone signal, on a tone source circuit 17 including the tone generating channels CH0 to CH127 for generating the musical tone signals. The tone source circuit 17 writes information indicating whether or not, the tone generating channel is reserved, into key-on map registers KM0 to KM127, in response to the reservation and cancellation of the tone generating channel by the CPU19a. The tone source circuit 17 detects that the tonal volume level of the musical signal generated in the reserved tone generating channels is a predetermined tonal volume level or below, and makes the reserved tone generating channels start generation of the musical tone signals specified by the musical tone information respectively. <P>COPYRIGHT: (C)2011,JPO&INPIT |
