30 Nov
2005
30 Nov
'05
5:27 p.m.
Neither
really. The original Mac sound hardware had four *synthesis* voices,
which could be fed a waveform and act as a primitive wavetable synthesizer.
This produces four-note polyphony.
I don't know what you consider to be 'original Mac', but the Mac+ sound
hardware was a pulse-width modulator loaded from a spare byte in the
video RAM area at the end of each video line.