[linux-audio-user] Audio 3-D Demo --- Any Interest in Software?

Steve Harris S.W.Harris at ecs.soton.ac.uk
Tue Jan 6 04:03:31 EST 2004

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

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