Hi,
Just to let you know that Speex 1.0 RC3 is out. It should be the last RC
until 1.0 is released (tentative release date is March 16th). Please
give RC3 a try and report bugs so they can be fixed before 1.0. As
usual, download from http://www.speex.org/download.html
Jean-Marc
--
Jean-Marc Valin, M.Sc.A.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada
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Have a look at Table 4
(http://www.speex.org/manual/node9.html#SECTION00094000000000000000) for
narrowband. Basically, if you can afford the bandwidth, 15 kbps is
almost transparent, while I'd say 8 kbps is "good".
For wideband (16 kHz), I can say that 27.8 kbps is really near
transparency, 20.6 is good quality and 9.8 kbps (still for wideband) is
acceptable.
The best is to see for yourself. I summarized a couple bit-rates, but
there are intermediate values. There's a total of 8 different bit-rates
for narrowband and 10 for wideband.
Jean-Marc
Le mer 12/03/2003 à 16:32, Daniel Vogel a écrit :> Could someone post a mapping of quality to bitrate or provide me with a
link
> where to find this information?
>
> Thanks,
>
> -- Daniel, Epic Games Inc.
--
Jean-Marc Valin, M.Sc.A.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada
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Use the -V option when encoding and you should get bitrates. "Daniel Vogel" <vogel@epicgames.com> writes:> Could someone post a mapping of quality to bitrate or provide me with a link > where to find this information? > > Thanks, > > -- Daniel, Epic Games Inc. > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage: http://www.xiph.org/ogg/ > To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' > containing only the word 'unsubscribe' in the body. No subject is needed. > Unsubscribe messages sent to the list will be ignored/filtered.-- Matthias Granberry matthias@utdallas.edu (469) 371-0596 --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
I tried to compress 160 samples of random garbage (range 0-500.f) at 4kbps and got a crash in nb_encode -> forced_pitch_quant because start was -858993460 (== ol_pitch). -- Daniel, Epic Games Inc. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Could someone post a mapping of quality to bitrate or provide me with a link where to find this information? Thanks, -- Daniel, Epic Games Inc. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.