[speex-dev] Recommendations for Pre-/Post-Processing
jean-marc.valin at hermes.usherb.ca
Tue Apr 15 08:35:13 PDT 2003
> I just wanted to know if there are any recommendations for
> pre-/post-processing (processing power isn't a question).
> I'm aiming at 16kHz and tried an lowpass-filter at 11kHz before encoding but
> this didn't improve the results...
Well, I don't know if that what you really meant, because at 16 kHz the
Nyquist rate is 8 kHz, so there's no point in filtering at 32 kHz. At 16
kHz, the only thing I'd do is to make sure there's nothing left below 50
Hz and that's about it.
Jean-Marc Valin, M.Sc.A.
Université de Sherbrooke, Québec, Canada
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 190 bytes
Desc: Ceci est une partie de message numériquement signée
Url : http://lists.xiph.org/pipermail/speex-dev/attachments/20030415/d964b1a6/signature-0001.pgp
More information about the Speex-dev