Re: [sdiy] MIDI isn

[jhaible at debitel.net]

> Yes, that agrees with some of the studies I've been reading about. Test on 
> timing simultaneity, for example, show that the best that the most gifted 
> people can resolve is around 10 ms. 

Consious perception of completely independent events ? Maybe.

Then we have the unconcious stuff that we cannot resolve, but still
perceive.

And then we have the phasing between two similar, but delayed events:
It makes a hell of a difference if you switch on similar sounds with 100Hz
at the same time, or with a delay of 5ms ... The hammond example
fails here, I know. I got some great phasing effects from my K1 with just
layering two identical sounds, however. (Culprit here is the K1, not Midi.)

> People here who claim being able to 
> resolve 1 - 2 ms don't appear credible according to these results.

That's because resolution and perception are two different things.
Human beings can feel a lot of things, without being able to nail 
them down.

10ms - means perfect cancellation for two identical  50Hz (+ harmonics) sounds

10ms - means an increase of  3 meters distance  from your sound source

10ms change of predelay in a small room reverb emulation makes a difference.

Just some thoughts ...

JH.