[sdiy] Imperfect VCO

[Scott Gravenhorst]

>From that accuracy standpoint, that is why I wanted to start with an
accurate VCO and then do wave shaping instead of trying to create a poor
VCO to get a particular sonic character.  Using waveshaping then allows
one control over the harmonic content without worrying about the VCO going
out of tune.

But I'm mystified by Martin's comment that the ringing artifact will
produce no useful character change.  Does that mean I would be largely
wasting my time to develop a VC ringer?  My practical experience isn't
large enough to determine that on my own.

Ian Fritz <ijfritz at earthlink.net> wrote:
>At 08:45 AM 7/31/2003, Czech Martin wrote:
>>Well, using a state var band pass or low pass with resonance
>>is again filtering. If the poles are too far out, you won't hear
>>the ringing, in spite of the fact that it is clearly visible
>>on the scope.
>>
>>I think high frequent wave oddities like ringing with 100kHz
>>or glitches with 10us width are NOT audible on a saw wave signal.
>>And also not on a tri wave.
>>It might be different on a sine wave...
>>
>>m.c.
>
>Right.  As an aside, I would mention that the main reason for developing 
>oscillators with minimal glitching and ringing is not because of their 
>sonic qualities, but rather to obtain more accurate tracking.
>
>   Ian
>

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