Technical Paper
Audio Signal Processor (ASP-I, II) for Digital Acoustic Process
1989-02-01
890256
ASP-I and ASP-II (under development) are the CMOS single chip signal processor designed for the purpose of the sound field control for the electronic acoustic instruments. ASP-I, II are provided with the audio signal interface control, Multiplying/accumulating operation, external RAM control and IIR digital filter operation, and these operation can be performed concurrently. Plural IIR digital filter operation realizes the simulation for the frequency characteristic of reflection sound, and external RAM control as ring buffer realizes the echo pattern operation. With these features, the ASP-I, II can reproduce the realistic sound field of music halls, churchs, ect. and can control the sound field freely.
