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Doepfer

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Re: Compressor patch (was 129 1/2 vocoder modules)

2003-06-23 by klamb000

I've put a diagram of a simple limiter patch in the Files section.    
It's called "Variable_Limiter.JPG", and the link is:

http://a4.grp.yahoofs.com/v1/gJT3PvVTpNCFtmyw6buRx6NcZdapl4j9TY1fDjSgk
ezQUqbjGYTHbhef4OiTRZHeNeARPg10W2dSRbOYTtu_SbGzgEM/variable_limiter.jp
g

Basically, the patch uses the lower half of the A170 Slew Limiter, 
which allows for variable attack and release times.  Otherwise, it's 
a fairly straightforward affair. Just make sure you don't overload 
the A119, and tweak gently until you get the feel of how this one 
works.

Regards,
Kevin

--- In Doepfer_a100@yahoogroups.com, "pela_gius" <pela_gius@h...> 
wrote:
> --- In Doepfer_a100@yahoogroups.com, Florian Anwander <
> Florian.Anwander@c...> wrote:
> > For non-speech signals the compressor may be built
> > with the Ext.Signal Input, Inverter, Slewlimiter and VCA. For 
speech I use
> > my external tube compressor.
> 
> How would you patch up a compressor anyway?  I was trying to figure 
this out 
> a while back with no success.  I use the Ext. Signal Input to bring 
in the signal 
> and create a gate when the signal reaches a certain threshold.  I 
just can't 
> figure out the gain reduction part.  I guess that's where the 
inverter comes in?  
> Do I switch the inverted ouput of the envelope follower into the 
vca level when 
> the signal goes above the threshold?  Where does the slew come in?
> 
> Then, once you have a basic compressor patch are there any 
interesting 
> variations you can create that do things you can't do with a 
traditional 
> compressor?
> 
> I have tried to create a patch that does something like the 
transient designer
> http://www.soundperformancelab.com/Transient_Designer/TechTalkE.html
> but I wasn't achieving any noticable effects.
> 
> Thanks in advance for any advice.

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