[sdiy] Last chance for 4xD PCB order

[Andre Majorel]

On 2006-07-16 14:36 +0100, Seb Francis wrote:

> I'm going to order the 4xD PCBs tomorrow.

I'll bite, kind of.

Unlike many on this list, I do not find hardware DSP compelling.
If I want to do DSP, I'll do it in software, as it's quicker,
cheaper and IMO generally better. No flames please, I'm entitled
to my opinions, no matter how obviously clueless they seem to
you. :-)

VC hardware DSP *is* interesting however, because it can be
integrated in a modular. Having multiple VC delays is something
I'm very interested in.

Seb you have already said that VC could be added. I'll try to be
a bit more specific this time. What would it take (number of 4xD
PCBs and approx. magnitude of software and hardware changes) to
have :

- two separate delays with independent VC delay (module has 2 CV
  in sockets),

- three of the same,

- six of the same,

I was about to ask, how about the same with added VC feedback
amount and VC feedback polarity but since the 4xD has send and
return sockets per delay channel, I guess VC feedback amount and
VC feedback polarity can be taken care of with one external
4-quadrant multiplier per channel, right ?

If adding VC delay involves sacrificing rotary encoders, that's
fine ; once I have VC, I expect I won't have any use for them
except perhaps a coarse delay range control per channel (and
even that might not be needed at all).

My apologies if the answer can be inferred from the schemos and
the data sheet of all involved chips, but there is a deadline
here. :-) Thanks... for... bearing... with... me...

-- 
André Majorel <URL:http://www.teaser.fr/~amajorel/>
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