N i g e l wrote:Non - VCO synths with static pitch offsets:
The WASP synth uses a master oscillator which is frequency divided down to produce the note frequency (controlled by a note_number & octave number).
The division is only 8 bit, so the note pitches are not exact.
This is similar to organ technology of the time where note pitches were derived from a master oscillator & a top octave divider IC. This was also used in String Synths and also I think some monosynths too.
I dont know the accuracy of the organ chips in terms of pitch.
That's very interesting, cos I think the synth I own which exhibits this effect most is a Yamaha CS01, which if I recall correctly from the Service Manual, also uses a digital divide-down from a master VCO running in MHz.