On Fri, Nov 10, 2006 at 05:21:20PM +0100, Atte André Jensen wrote:
I'm looking for a "reverse reverb"
effect to use in ardour. I'm not sure
what the appropriate term is, but on an old analog tape it could be
achieved by butting the tape in "wrong" so that it plays back in
reverse, running the sound through a reverb, recording the reverb to
separate tracks and putting the tape back in for normal playback.
Is such an effect available as a LADSPA plugin (in that case I apologize
for being unable to spot it in the vast list of plugins), or could it be
build/emulated by using several LADSPA plugins?
You can make a reversed, 'gated', or whatever shape reverb using
convolution. You'll need a reverb impulse response, mangle it in
any way you like (in this case reverse it, or part of it), and use
this with e.g. JACE.
Or you could generate the IR using a soft synth: any burst of noise
will produce a reverb effect having the same shape as the noise
burst's envelope.
Then in Ardour use a post-fade send to JACE, and mix in its output
using a 'bus' module.
--
FA
Lascia la spina, cogli la rosa.