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200e

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Re: [200e] Taming aliasing

2005-11-20 by Peter Grenader

Aaron Lanterman wrote:

> I wonder how the taming works - aliasing to me sounds like growly
> low-frequency sounds which were supposed to be high frequency sounds...
> I'm trying to imaging how lowpass filtering helps that, since the aliasing
> effect is heard at those low frequencies.

The alaising I've heard on the 200e is much more apparent on the high
frequencies as it begins to sideband in those higher registers.

<<The aliasing on the samples on the Keyboard site sound pretty wretched to
me. Maybe it the 259e could be updated to clock at a faster rate?>>

It's colorful, I'll give you that.

Buchla's caught a lot of comments about his 259e's alaising, which is
interesting to me as the 259e isn't the only wavetable VCO with these
anomalies.  Take a Miniwave into the high registers and it's there on many
of the samples.  Ditto on the Analogue Solutions original issue Vostok
wavetable and the Doepfer.  Bottom line, seamless single cycle waveshaping
isn't easy - but that seam - the tick of energy present at the beginning of
the cycle is a part of it's timbre, and I dare say an interesting part.

I think Buchla's only issue was not offering a viable option - until now
with the 261, given (and I don't know this for fact) that he has addressed
this with this new VCO.

Respectfully submitted - can we talk about something else now?  The aliasing
has been talked to death!

- P

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