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Question about dereverberation filters

Started by JAKOB ASHTAR April 3, 2006
Hey everybody...

I have a speech signal with too much echo....sounds like the speaker
is talking in a tunnel or something....Is it possible to dereverberate this
signal? If so, how?




"JAKOB ASHTAR" <NOSPAM@THANK.YOU> wrote in message
news:4430ce27$0$15792$14726298@news.sunsite.dk...
> Hey everybody... > > I have a speech signal with too much echo....sounds like the speaker > is talking in a tunnel or something....Is it possible to dereverberate
this
> signal? If so, how? > > > >
Not so easy as it sounds. This depends on whether the impulse response is non-minimum phase. See another thread on this. Tam
Some methods assume linear system, i.e. that the reverberation was 
created by a linear system (hopefully a stable one).  Then you may such 
methods as frequency division etc.

JAKOB ASHTAR wrote:
> Hey everybody... > > I have a speech signal with too much echo....sounds like the speaker > is talking in a tunnel or something....Is it possible to dereverberate this > signal? If so, how? > > > >