Noise patrol

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I’m working on emulation of the AICA (the Dreamcast/Naomi/Hikaru sound chip) behind the scenes with kingshriek and Deunan Knute (the Makaron author). Since AICA is basically an SCSP with double the voices and a few feature tweaks the obvious basis was MAME’s now reference-quality SCSP emulation. That’s allowed us to get to a pretty good state in a short amount of time. The ADPCM sample type isn’t quite right yet, but the basic functionality and effects DSP are working. You can take a listen to the current code playing a piece from Sakura Taisen 4 right here. (Note: this is via a DSF rip, it doesn’t mean Dreamcast works in MESS).