[sdiy] Imperfect VCO

Ian Fritz ijfritz at earthlink.net
Thu Jul 31 19:13:42 CEST 2003


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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