[sdiy] WOAAAAAAAH! You guys GOTTA try this!

[Peter Grenader]

If anyone can give me a hand on how in the hell to make an mp3, i'll upload
a sample of what I'm explaining here.  I have Digital Performer and Liquid
Audio.  

More blabble on Low Pass Gates. Bare with me. I know I know, I'm obsessed:

Grant Richter explained  the reason behind the (very) non linear response of
the Low Pass Gate the other day.  Running a test I have concluded  he's 100%
correct.  If you have an envelope generator with an LED, you'll notice the
light lasts a while longer than the sound does.  It's well lit on the attack
before you hear anything and still diming out when the sound dissappears on
the decay. It takes a certain amount of voltage for the gate to start
opening and this effects it's closing as well.  I have not slapped a
voltmenter on it yet, but I would imagine it's over a volt.

In another test,  I ran the same sound through a Low Pass Gate and a
standard (in this case Doepfer A-132) VCA, driven by the same envelope.
And...my life has never been the same since!

If you do this while the Low Pass gate is in straight low pass mode, the net
effect is two distinct shapes of the same sound, with a slight phasing
effect which fades in late and out early caused by the effect of the filter
kicking in and out driven by the vactrols and their response delay.  It may
well be that they are in fact out of phase from one another - as I know the
Buchla mixers did this by design. In any event, th sound of the two combined
is very much like an analog delay.   If you run the output of the standard
VCA out of one speaker, and the out of the LPG out of another, this effect
is further augmented by a very smooth  pan at the tail of the envelope. You
can also increase the intensity of this effect by decreasing the output
level of the envelope controlling the VCA/Gate...this tends to bring the
response differences out even more.

The neat thing is because it's caused by the different response of the two
VCA's and both are driven by the exact same source, they track each other
perfectly, regardless of the speed.

SoooOOOOoooo cool.



-peter