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furnace/papers/doc/7-systems/segapcm.md

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SegaPCM

16 channels of PCM? no way!

yep, that's right! 16 channels of PCM!

a chip used in the Sega OutRun/X/Y arcade boards. eventually the MultiPCM surpassed it with 28 channels, and later they joined the software mixing gang.

effects

  • 20xx: set PCM frequency.
    • xx is a 256th fraction of 31250Hz.
    • this effect exists for mostly DefleMask compatibility - it is otherwise recommended to use Sample type instruments.