[sdiy] PPG sacrilege!

[Paul Maddox]

Aaron,

> Eeek - I didn't mean for that lecture to come off as anti-PPG.

hehe, it didn't, it was very interesting, I'm just midly obsessive about 
PPGs.

> Did I say they were? Shoot, didn't mean to if I did. I might have been 
> getting it mixed up with the Prophet VS - I recall the waves from that 
> came from a variety of sources.

I think it was implied when you talked about sampled waveforms and 
'snippets' to create tables, then you mentioned the PPG.

> As the course progressed I got more ond more busy with non-course related 
> things (I graduated two PhD students this semester and got to "hood" them 
> at graduation last Saturday! Yay!) so the lectures get less and less 
> coherent.

Dunno, I found them quite enjoyable.

> I have to confess I was just quoting what I'd heard from various sources.

oooo..
Www.ppg.synth.net

> I've never actually heard or seen any of the early PPG digitals in person.

I'm lucky enough to have played with most of the PPG range.
Aactually, now I think of it, everything excluding a realiser and 1003 
(which I've been invited to go and play by a friend of mine).

> Again, was just quoting what I'd heard. ;)

hehehe, hear-say is a bad thing.
The other thing was that the PPG was incredibly complicated, the Prozboard 
which does all the oscillators, is a major league complex state machine made 
from discrete logic (74Snn) and it scared the living bejesus out of any tech 
who saw it.

> Ooops - darn. I was in a big hurry putting that lecture together.

I'm just picky :-)

> That certainly is true - but when the DX7 came out at its price point, it 
> must have taken a bite into PPG, no?

yep, I think it was a contributing factor, but not the main cause, whcih was 
the over-stretching of funds on the realiser..

> Oh, the first point there I didn't know - I thought the wavetables in the 
> 2.3 were 12 bit.

you're not alone, it's an incredibly common mistake :-)

> Did you know that the Monowave filter was part of one of my homework 
> problems? Check out HW #6... ;)

was it?
I'll have to have another look...

anyway, just ignore me, I'm being picky because I obsess about PPG, you're 
doing a superb job, I only wish I could've had these kind of lessons when I 
went to college.

Paul