Re: [Ekiga-list] Aliasing in audio codecs
- From: Damien Sandras <dsandras seconix com>
- To: Ekiga mailing list <ekiga-list gnome org>
- Cc: Jean-Marc Valin <Jean-Marc Valin USherbrooke ca>
- Subject: Re: [Ekiga-list] Aliasing in audio codecs
- Date: Sat, 27 Jan 2007 15:15:48 +0100
Le vendredi 26 janvier 2007 �3:08 +0100, go music a �it :
> I'm discovering Ekiga using it with success including audio/video for
> two days now on a Mandriva 2007 system, and I really congratulate
> everyone who give and have given their contribution to that great
> project! Diamondcard works fine as well BTW.
> Here is my question for upcoming developments.
> I have noticed that both SPEEX (8 and 16kHz bandwidth) and the iLBC
> codecs produce aliasing either due to inadapted frequency filtering of
> the audio bandwidth with respect to the raw sample rate or low (8?)
> bit conversion without interpolation or both. Is there any way to fix
> this? it would really be necessary to improve the audio quality of
> these codecs, and can be achieved by using matched filters and
> interpolation.
That's probably a question for Jean-Marc Valin (I'm cc'ing him).
--
_ Damien Sandras
(o-
//\ Ekiga Softphone : http://www.ekiga.org/
v_/_ NOVACOM : http://www.novacom.be/
FOSDEM : http://www.fosdem.org/
SIP Phone : sip:dsandras ekiga net
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]