Hi Florian,

I understand the benefits of the multistage envelope and have DIY'd
something similar which is very useful.

It wasn't my intention to disregard the poll (I had already voted Yes) I
was just trying to emphasis that for most uses ADSR has more stages than
people really use and a simpler envelope would be most useful, in fact I
believe there was discussion for such a module in the past.

I too am a fan of the Rogue envelope, the nearest I have to that is the
BugBrand EG which has an AD/ASR switch ;)

Thank you for the explanation as well as it's always good to get a
fuller view of a proposed module.

Rgds

David

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* * *
David Salter
Senior Consultant
Solutions Services EMEA North


Thomson Reuters

O +44 (0)20 7542 2402X 52402
M 07990562402

david.salter@...
thomsonreuters.com < http://thomsonreuters.com/ >



________________________________

From: Doepfer_a100@yahoogroups.com [mailto: Doepfer_a100@yahoogroups.com ]
On Behalf Of Florian Anwander
Sent: 10 June 2011 13:51
To: Doepfer_a100@yahoogroups.com
Subject: Re: 1 New poll for Doepfer_a100




Hello John and David,

Am 10.06.2011 12:54, schrieb john m:

> I really like multi-stage envelopes (cz1000, nord modular, etc).
> 8 stages and you select which stage is the sustain. Added cv control
> would be immense.

If there should be a new envelope module, then it should be not reduced
to certain functions like attack or decay or what ever. So I subscribe
to Johns request for a multistage envelope.

There are several stages, basically with an slew time and a destination
voltage. The destination voltage of the last stage is the note-off
voltage. The destination voltages can have values between +10V and -10V.

StageX-Level: this is the voltage to where this stage changes to. The
last stage will have an additional switch to set this level to 0V
(=normal envelope).
StageX-Rate: this is the rate at which the StageX-Level will be reached.

There should be a switch for mid/fast/slow per stage.
StageX-LoopStart: this is an on/off switch. It determines the start of
the envelope loop
StageX-LoopEnd: this is an on/off switch. It determines the end of the
envelope loop

If StageX-LoopStart and StageX-LoopEnd are activated at the same stage,
then you have an normal Sustain.
If StageX-LoopStart and StageX-LoopEnd are activated at the different
stages, the Sustain phase will circulate through the corresponding
stages.

The big advantage of this kind of envelope: you can achieve negative and

positive modulations within the same envelope, and the amount still will

be controlled by a simple env amount potentiometer.

Am 10.06.2011 09:02, schrieb david.salter@...
<mailto:david.salter%40thomsonreuters.com> :

> I'm a big fan of AD or AR envelopes.

Me too. Mostly I am a big fan of the envelopes of the moog rogue. It has

Attack and Decay as parameters and can be switched between AD and ASR. I

made recently rougly a pcb in eagle for it:
http://fa.utfs.org/diy/a100/rogue_envelope/index.html

Florian





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