couldn't a a-155 be patched up for these kind of functions maybe I'm wrong but I thought of it on another reply for a arbitrary envelope, and this sounds just like an a-155 with supporting modules. maybe I'm wrong

On Jun 10, 2011, at 8:51 AM, Florian Anwander < fanwander@... > wrote:

> 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@... :
> > 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
>


[Non-text portions of this message have been removed]