6 Jan
2004
6 Jan
'04
5:06 a.m.
On Mon, Jan 05, 2004 at 06:33:23PM -0800, R Parker wrote:
I don't understand how impulse response (IR)
works. I
know you fire off a sound/impulse and then the
response is used to tell calculate the properties of
your room. Will IR tell me that the average/desirable
Sabin value from 20Hz to 4KHz for a .3 reverberation
time in a 17X14X7 room is 148.6?
An impulse response is just a /very/ large FIR filter, one way they can be
created is by a physical analysis, but thay can also be generated
synthetically. With an IR impulse its possible to capture and recreate any
linear (ie. non- non-linear) process, within reason.
I see what your saying about reverb and so on v's having a good room in
the first place, but not all audio has an acoustic source.
- Steve