[sdiy] Taking a Step towards - - --((FUTURE-PREDICTIONS))-- - -

[Paul Maddox]

Magnus,

>Characterisation, we need characterisation!

agreed, character is what synths are all about..
its the sound that comes out thats important, not how it works and what it
looks like..

>What about cold analogue gear?

I've *NEVER* heard anyone say anything analogue was 'cold', if you know of
such an exmaple PLEASE let me know, so next time this debate starts I can
fire it back...

>Um... you mean 1,024 MHz or PPG where doing serious magic back then...
(knows
>better).

depends , to me 1G = 1000M, the point was that the top oscillator frequencey
needed was astronomical.

>Anyway, yes... 1 MHz seems high. There is a neat app in the CA 3080
datasheet
>showing how you can make a continous sweep from 1 Hz to 1 MHz using a pair
of
>CA 3080 and a CA3160. The frequency control is at one of the Iabc inputs so
a
>standard expo-curcuit using PNP transistors (see ASM-1 VCF for instance)
should
>allow for a fairly straight-forward way of acheiving a full-range analog
>oscillator to control a PPG-style wavetable. So, what's the problem? Known
>components and not too uncommon techniques. Well, high-freq tracking is
just
>not being explored.

agreed, there's more to be done, but no-ones trying, no-one seems to want
to.

>Anyway, there is a path there. It hasn't been walked for quite some time,
but
>it's there. I'm doing this partly to annoy you, but partly to show my point
>that we keep thinking in a little too much the same fashion all the time.

scary stuff!

>Indeed. And then there where PPG gear before the 360.

yeah, then look at the realizer, people laughed at it in 1986, now look....

>It's dirt-cheap today. We can spend much more resources in processing on a
>single function than in the early days. Today it is really just the
imagination
>which puts the limit except for a few SERIOUSLY powerhungry things.

yep.

> IMHO one error is that a too low sampling frequency is being used.

that depends on what system you're using, is 192Khz at 24bit high enough?

Paul