Re: Gods and loops

[Gareth Whittock <whiteoak@dial.pipex.com>]

Alex,
 You are a God.
Tried it with Audiomulch and it works a treat. All my stuff is loop
based so I can use your method in ay work . All I need is a laptop now
and away to go rather than dragging my desktop around, (actually it's
the monitor that's the pain in the arse).
Thanks again.

While I'm posting, I'm doing a loop based gig tonight at the Cardiff
Chambers in Cardiff bay, Wales. It's quite a cool setup. Me and this guy
Neil are playing in the atrium of this building with art galleries on
all sides, (sculptures, video art, 2d etc) - surrounded by art and
plants, great. I play my modified slide guitar with violin bow etc and
Neil has this really unstable moog. My stuff as I said is all looping
and he provides noises off, (or on).

Cheers,
Gareth


> If you read the fine print I was careful to say I only dealt with latency
> in a looping situation, which is a special circumstance.
> What I meant was, if the computer is only used to output the loop, not 
>any
> "dry" signal, then my scheme works. If you also want to replace a bunch 
>of
> stomp boxes and reverbs with software, I agree you are stuck with a fixed
> minimum delay (the latency) that cannot be turned off. (Although a good
> fast computer plus a sound card with very small buffers can bring this 
>down
> to just a few milliseconds.)
> 
> The idea is pretty simple but seems to be a little hard to believe. 
>Several
> people said it wouldn't work, and I still doubt it sometimes even after
> demonstrating it to 40 people. Let's say you want a 10.000 second loop 
>and
> your computer's total latency (from audio input through the OS, through
> your application, and back down out to the audio output) is 0.2 seconds--
> enough to throw off even a viola player or an accordionist or a guitarist
> or whatever (duck!). You set up a 10 second delay line, with two delay
> taps-- one at 10.000 seconds and one at 9.800 seconds. The 10 second tap 
>is
> used for feedback or regeneration, which happens inside the software 
>every
> sample so there is no latency problem there. The 9.8 second tap is what 
>you
> listen to. If you play along in perfect sync with what you hear, it ends 
>up
> back inside the computer in sync with the 10.0 s internal feedback tap.
> Note that even though you are technically listening to a 9.8 s tap the
> delay that you hear, and the total loop length, is exactly 10.0 s.