[sdiy] help with clicks on VCA

[cheater cheater]

In a ring modulator, for each pair of partials f,g that exist in the
modulator and carrier respectively you get f+g and f-g at the output.
What you're hearing is f-g. That f comes from your triangle wave and
is probably above the hearing limit of ~22kHz. Solution: band-limit.
Slew limiting is one possible way of doing this.

Of course, I might be completely wrong.

D,

On Sun, Aug 16, 2009 at 9:03 PM, Dan Snazelle<subjectivity at hotmail.com> wrote:
>
>
> I am trying to make a tremolo.
>
> I have tried with an OTA vca and with an SA571 vca
>
> the SA is better as I dont have to worry as much about the peak to peak values coming in and the CV rejection is better
>
> BUT
>
> neither are ideal
>
> when driving with a squre or TRI wave i get all kinds of CLICKS imposed on the audio (i am not talking about
> when there is no audio coming in. i am talking about clicks imposed ON the audio)
>
>
> anybody have any ideas on how to remove these clicks?
>
> someone recommended slewing the Control waveform.
>
> i was quite surprised that an OTA was so prone to this
>
>
> thanks
> --------------------------------------------
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>
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>
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>
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>
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>
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