RE: Octophonic sound system

[RMOUNEYR@bouyguestelecom.fr]

hey,

>>discret mixing VS automatic mixing
  It's interesting you're talking about a joystick. This is the way we
intend to control the sound placement (and 2 joystick for Octophonic, like
if you're driving a Caterpillar). In order to be able to recreate the
ambience, we are recording the joystick movements. So we let the original
sound (wav file) without modifications.

  I've not thought about virtual spaces thanks to reverb or supersonic
sounds summing, this way looks interesting, but i think my technical
knowledge in audio treatment is a bit too poor. If you have more info on
this i'm interested.

You have to know that here in Paris, at the IRCAM (http://www.ircam.fr
director: Pierre Boulez) The often play Octophonic shows with
software/hardware of their own. Unfortunately, i've missed the las one on
21st june.
They provide a subscription to a service (i think it's worldwide) where you
have acces to a lot of software they developp. interesting, but expensive 
to
me.

I finish my job tomorrow, and i have two months to run into music at 100%.
We don't have a deadline for this project, we're just working on it, and as
we aren't Audio developpers (only simple C++ developpers), some things are 
a
real headache.

This subject is opened to any ideas.
RAF.

> -----Message d'origine-----
> De:   AaroneousAG@aol.com [SMTP:AaroneousAG@aol.com]
> Date: mercredi 27 juin 2001 20:49
> À:    Loopers-delight@loopers-delight.com
> Objet:        Octophonic sound system
> 
> Hi!
> 
>    I'm very interested in the software you and your friend are working 
>on.
> I got your post through Looper's Delight, and I have to say I was 
>floored.
> I've thought about an independent channel octophonic system for years 
>now,
> and have many ideas on the subject.
> 
>     My question is, are you just making a program that will allow 
>discreet
> mixing to the 8 channels, or are you programming an automatic mixing
> architecture that will allow locallized sound placement within an audio
> matrix field?  This way, one could use a joystick to "drive" a sound
> across the field, and, if one were especially tricky, program
> psychoacoustic effects to follow the sound along, such as a simple phased
> doppler effect as it passes "center" or a reverb dispersion which
> simulates space beyond the speaker array itself, turning a localized
> listening room into an enourmous cathedral.  
> 
>      This kind of software would also be crucial for the programming of
> supersonic sounds summing out of phase at their intersection point,
> creating an ACTUAL locallized sound, which can only be heard within the
> intersection.  As you might know, supersonic sounds have a low rate of
> dispersion, and can be focused like a laser.  If one were to create an
> array of these speakers, one could actually pixellate sound.  (providing
> there's no one and nothing else in the room to obstruct the sounds from
> reaching their intersection)    
> 
>     Please let me know if any of these are being addressed, and when you
> expect to be finished.
> 
>                         Sincerely,
>                              Aaron Goldsmith