[LAU] Dereverberation

Fons Adriaensen fons at linuxaudio.org
Mon Sep 12 13:05:04 UTC 2016


On Mon, Sep 12, 2016 at 02:54:24PM +0200, Guillaume Meurisse wrote:

> A transient designer can be used to effectively reduce the reverb.

Which is basically an expander/gate that, instead of following the
input signal level with some attack/release timing, imposes a
predefined envelope once triggered. 

Dereverberation algos do something similar in multiple (30..100)
frequency bands, with the parameters derived from the signal
statistics. They also will trigger on level changes rather
than absolute levels. This can get very complex.

Ciao,

-- 
FA

A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)



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