[LAU] Dereverberation

[Ivica Ico Bukvic]

On 9/14/2016 1:33 PM, Fons Adriaensen wrote:
> On Wed, Sep 14, 2016 at 12:46:34PM -0400, Ivica Ico Bukvic wrote:
>
>> Given in my case I am not concerned with mangling the audio (it is
>> not intended to be played back, only used to calculate TDOA between
>> mics), I have no reservations towards resorting to destructive kinds
>> of processing as long as it improves my ability to identify accurate
>> TDOA between multiple mics.
> But earlier:
>
>>>> Does anyone have access to an easy to implement (as in code)
>>>> dereverberation algorithm assuming one has access to the room impulse
>>>> response? I am looking for a way to clean-up recorded audio signal in
>>>> order to improve signal clarity (e.g. speech).
> So now I'm a bit confused... Do you need improved audio, or just
> signal statistics ???

Good point. As long as the spectral content is more accurate because it 
is devoid of extraneous reflections and therefore potentially altering 
the spectral composition to the point it fails to be cross-correlated 
correctly, and a single window of sound is enough to do a more accurate 
cross-correlation, I am fine with that. The in-between-windowing 
artifacts do not concern me as long as they are not a cause of signal 
degradation to the point where cross-correlation is affected by it. Hope 
this helps. Thank you all for your input so far.

Best,

Ico

>
> Ciao,
>