There was 1 7-bit DAC in the YM2612 and it had no DMA capability. That means you had to devote either the Z80 or the 68000 to feeding it samples at a precise rate. And the samples were uncompressed in the cartridge most of the time. So the upshot is that increasing the sample quality increased both CPU load and cartridge space requirements very quickly.
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Re: Why was it so hard for devs to do voice on Megadrive? -nt
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my obsession with arcade ports.
