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RE: AW: [Doepfer_a100] simple fixed slew limiter?

2008-04-05 by Bakis Sirros

hello,
go to 'edit membership', in the group's home page, and
change the message delivery to 'web only'


--- Jordi Sampe Farre <gd_records@hotmail.com> wrote:

> Hello, please, can you tell me what I can do it for
> no recieve more mail form Doepfer group? Thanks and
> best from Barcelona
> 
> 
> 
> To: Doepfer_a100@yahoogroups.com
> From: hardware@doepfer.de
> Date: Fri, 4 Apr 2008 17:11:59 +0200
> Subject: AW: [Doepfer_a100] simple fixed slew
> limiter?
> 
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>             > hi group,
> 
> >
> 
> > i was wondering if it's possible to build a simple
> (passive?) slew
> 
> > limiter with a view to rounding off a gate signal
> enough to
> 
> > reduce/remove the clicks produced by controlling
> vca's with gate signals.
> 
> >
> 
> > i googled, but came up with a ton of stuuff that's
> a bit more than i
> 
> > need.
> 
> >
> 
> > i need no voltage control, indeed not even a
> variable slew rate.
> 
> >
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> > any ideas?
> 
> >
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> > thanks,
> 
> >
> 
> > stu
> 
> 
> 
> The simple low pass on the DIY page should do the
> job. The values for R1 and
> 
> C1 depend upon the desired slew rate which is ~
> R1*C1. With 1uF and 10k you
> 
> obtain ~ 10 ms slew rate. The upper half of the
> A-170 uses this circuit
> 
> (with R1 as a combination of a fixed resistor and a
> potentiometer) followed
> 
> by a buffer amplifier to avoid voltage losses caused
> by the load connected
> 
> to the R/C combination. But for simple Gate/VCA
> control a small voltage loss
> 
> should not be a problem.
> 
> 
> 
> Best wishes
> 
> Dieter Doepfer
> 
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> ------------------------------------
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Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist
[Doepfer_a100] group owner
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Athens-Greece


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