| 摘要 |
PURPOSE:To obtain speedily proper audio signal data based upon a new program right after a program is change by initializing a data memory and a delay memory by a sequence control means when the specified program is changed. CONSTITUTION:Plural sequence control programs that a sequence controller 18 processes and plural coefficient data groups to be supplied to a RAM 10 are written previously in the ROM of a microcomputer 24 in addition to a digital signal processing processor control program that the microcomputer 24 itself processes. Then when sequence control programs are changed, the data memories 5 and 6 and delay memory 17 are initialized. Therefore, even when processing by the sequence control program after the change is started, signal data by the program before the program change does not remain. Conse quently, the proper audio signal data based upon the sequence control program after the change is obtained speedily. |
