[sdiy] spring reverb.......

[John L Marshall]

Why not follow the spring reverb with a VCA controller by an envelope
generator? The envelope generator can be set for short decay.

Feed the output back to the input of the spring reverb for longer decay.


Take care,
John
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Pacific Northwest DIY Synthesizer meeting, January 18, 2003
See: www.sound-photo.com
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----- Original Message -----
From: "Fernando de Izuzquiza" <fdi at ran.es>
To: <synth-diy at dropmix.xs4all.nl>; <synth_dg at yahoo.com>
Sent: Wednesday, November 13, 2002 5:30 PM
Subject: Re: [sdiy] spring reverb.......


>
> Hi all,
>
> I'm also thinking on spring reverbs...
> Has anyone used the Doepfer reverb? And the PAiA? Can you tell us about
their sound?
> Also, is there any other way of controlling decay time other from input
amplitude? I imagine the
> springs have a maximum amount of decay due to it's phisics... but, it's
possible to damp it
> electronically or some way? (--> to have control over decay time)
> I used plate reverbs with a decay control. Of course, in addition, more
amp on the excitation signal
> produced longer decays.
> I'm looking for spring reverbs more as a sound processor than to create
"space" for sounds, so I do
> no search for a realistc reverb. So I wonder if it's possible to have
short reverb times too.
> I like spring sound (as on VCS3 and AKS) but a "too or always springy"
reverbs will not be usable
> more than once or twice...
> Doepfer reverb has the feedback loop accesible and it says it can self
oscilate. Well, I gess it may
> be easy to implement to any other reverb circuit (or not?), but the idea
of processing the
> recirculation is interesting, that's why I would like to read any kind of
opinions (more and less
> tech) about Doepfer, PAiA and other available spring reverbs.
> Thanx all,
>
> Fernando
> --
>
>
>
> f
> *
>
>
>
>
> > De: daryl groetsch <synth_dg at yahoo.com>
> > Fecha: Wed, 13 Nov 2002 13:51:37 -0800 (PST)
> > Para: synth-diy at dropmix.xs4all.nl
> > Asunto: Re: [sdiy] spring reverb.......
> >
> > Thanks everyone for the great tips. I tried some
> > different op-amps and temporarily used pots for the
> > feedback resistors. If I can get it loud enough, then
> > it's distorted. And when it's not distorted, it's very
> > quiet! (when adjusting the feedback on the input
> > and/or recovery circuit). Spring reverb is more tricky
> > than i expected! I think i'll study this one some
> > more:
> > http://www.accutronicsreverb.com/drive1.pdf
> >
> > Thanks again,
> > Daryl
> >
> > =====
> > http://www.darylgroetsch.com
> >
> > __________________________________________________
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>
>