Yes, even the mighty 300 doesn't produce a pristine sine wave. There
are some harmonics produced, even in a finely scope-tuned 300. In
practice, for adding beef in the sub-bass region for e.g., this isn't
much of a problem. But if you really want pure sine waves, any of
the MOTM filters will oscillate and the 440 in particular tracks well
over an octave or so (perhaps more). For nice bell tones and ring
mods, I use oscillating filter output.
Mike
--- In motm@yahoogroups.com, "foraxx" <omgemag@h...> wrote:
> I've heard that it is difficult for a VCO to create a sine waveform
> (or really a good quality sine wave). Is this true and why is it
> so? Its obvious to me that it would be harder to generate a sine
> wave in comparison to a square wave, but what is specifically
> challenging theoretically and in practice?
>
> Some people complain about the purity of sine waves generated from
> VCOs.. does this matter to you? Do you find sine waves useful in
> subtractive synthesis or could you do without this waveform?