AW: VC envelopes

[Magnus Danielson]

>>>>> "HJ" == Haible Juergen <Juergen.Haible at nbgm.siemens.de> writes:

 >>> Special Award for "most different" VCADSR solution goes to
 HJ> Roland's
 >>> JP-4. Variable resistors are emulated by analogue switches and
 HJ> smoothing
 >>> capacitors, and each switch is controlled by a little expo VCO.
 >> 
 >> Great! Never heard of such a design before.

 HJ> There is a scan on the web; I think on Anders' site.

BTW. I am just of the phone after talking to Anders. His site is
temporarilly down since they are rebuilding the server at the school
that he works, this also means that he doesn't can read his email on
that account. We are considering a way of getting the stuff up
temporarilly while the server work progresses...

 HJ> The envelopes are a little staircase-like (I don't know how large
 HJ> the steps are, but I never heard anybody complain about it),
 HJ> but they are pretty fast (3ms if memory serves).

Hmm... this sounds like a interesting way of doing things, I better
check it out.

I have a sheet with the VC-ADSR that Gene did some time ago, just
about the same time he did the 5-level PWM waveshaper which I also
have a sheet on... both came on a fax to me.

Cheers,
Magnus