[sdiy] Music

[Harry Bissell]

I'm not a software expert although I play one on TV...

Sound disperses spherically (x^3) whereas light disperses (x^2)

Sound would be more computationally intensive

(or maybe not... :^)

H^) harry

----- Original Message -----
From: Thomas Strathmann <thomas at pdp7.org>
To: synth-diy at dropmix.xs4all.nl
Sent: Tue, 20 Jul 2010 12:14:43 -0400 (EDT)
Subject: Re: [sdiy] Music

Am 7/20/10 17:55 , schrieb Scott Nordlund:
> I've read some about modeling spring and plate reverbs.  High order
> dispersion filters are very important but it takes a lot of CPU power.
> I'd assume that's true of cymbals and gongs and things too.  Also,
> trying to emulate a 2 or 3 dimensional acoustic space with 1D
> waveguides isn't ideal.  I think the "proper" way to do it would be ray
> tracing, not that it's remotely possible in real time.  There's
> probably some easier compromise that gets passable results, though.
> After all, most reverb algorithms make no attempt to actually model an
> acoustic process.  They only make a lazy approximation that's fine
> tuned to sound reasonable.

Raytracing for graphics is possible in realtime even on a CPU and has 
been done successfully for some 10 years now. I imagine the only objects 
needed for a reverb "scene" would be quads that bound the space in which 
the reverb is to be sampled. Kind of like they did with actual rooms, a 
loudspeaker, and a microphone in studios. Do I miss something that would 
make raytracing impractical for this use case?

	Thomas
_______________________________________________
Synth-diy mailing list
Synth-diy at dropmix.xs4all.nl
http://dropmix.xs4all.nl/mailman/listinfo/synth-diy

-- 
Harry Bissell & Nora Abdullah 4eva