GENERAL DESCRIPTION：
The AVM1504D is single-chip 3 channels timbre generator that can synthesize (2 ch. melody and/or 1 ch. voice). It is designed by instruction-based synthesizing method. Total has 504 instruction steps. Total voice is up to 1.5 seconds using APLUS qualified coding algorithm(LOGPCM). Customer speech data will be edited and programmed into ROM by changing one mask during the device fabrication.