Yes the STF can play digital sound samples. The STE has a DMA chip specifically for this purpose.
Here's the source code to the Megabang demo by TLB. The source includes a routine that is set-up
on Timer A to replay sequenced samples at 7.5khz. It shouldn't be too difficult to adapt it to
replay samples at higher frequencies (depending on your experience of 68000 assembler). The
replay code isn't difficult to rip out.
You can use any sound sampler that can save in either signed or unsigned samples. I'm sorry I can
never remember whether the STF uses signed or unsigned samples but samples need saving out
so that each sample byte is between 0-255 in value rather than -128 through 0 to +127.
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