[sdiy] Automatic gain correction for Overdrive

[Tim Ressel]

Come to think of it, Paia did an interesting thing on
their 4700-series filter. When the Q is ramped up, it
gives the filter lots of gain. To offset this, the
'init Q' pot was a dual, with one section serving as a
volume control on the input. As the Q goes up, the
input goes down.

--TR

--- Peter Snow <psnow at magma.ca> wrote:
> Hi Florian,
> 
> Something that may interest you is a circuit from
> Electronic Musician, January 1987 call the
> "Fuzzstain".
> It used a CLM6000 to provide a sort of compression
> that smoothed out the sound level as the fuzz
> increased in gain.
> I never built the device but I have a rather poor
> jpg of it I can send you if you're interested.  If
> you can wait a while, I may be able to find the
> whole original article and scan it all for you (if
> the mice haven't eaten it!).
> 
> Cheers,
> 
> Peter
> 
> 
> Fortner Florian wrote:
> > 
> > Hello everybody,
> > 
> > I wonder if this has ever been discussed (then
> please recap it for me :-P ):
> > How can I cope with the strong loudness change in
> an overdrive circuit? If
> > you turn up an analog Overdrive it gets far
> louder, so you have to play with
> > the volume knob all the time. Is there any common
> approach? One can perhaps
> > do it with an additional VCA, but I'd like a
> method where the gain reduction
> > can be integrated with the overdrive. If anyone
> ever has done this I would
> > be happy to hear from him!
> > 
> > regards,
> > 
> > flo     (at the moment still learning and only
> asking nasty questions, but a
> > VERY BIG FAN OF THIS GREAT LIST!!!)


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