[Vorbis] Vorbis at first place in "Public,
Multiformat Listening Test @ 128 kbps"
dbalatoni at programozo.hu
Wed Jan 18 11:04:39 PST 2006
szerda 18 január 2006 01.36-kor Tor-Einar Jarnbjo wrote:
> Maik Merten wrote:
> >The setting were chosen so that all encoders will give 128 kbps on
> >average with *full length* tracks/albums (which is what is interesting).
> I doubt that. All encoders exceeded the target bitrate substantially,
> the Vorbis encoder at most with almost 16%. When testing specific audio
> material, they should also tweek the encoder quality settings, so that
> they reach the target bitrate with the applied settings.
For more information, look at the pretest discussion (the settings were indeed
choosen so that a bitrate of ~130kbps is achieved on a larger amount of
> >Thus the 7-8% bitrate difference during these short test-samples is
> >uninteresting as there are enough sequences in which Vorbis will go
> >below 128 kbps.
> And the other codecs won't go below 128 kbps on those sequences, so that
> the average difference remains? What I got to think about is wether or
> not the Vorbis header was included in the bitrate calculations? That
> might of course explain the difference on such short samples.
It wouldn't, the header amounts to 1-3 kbps on these short samples (cca. 3
kbytes in the file). But indeed, Vorbis is probably willing to go lower
bitrate wise than the other contenders.
What kills me, doesn't make me stronger.
More information about the Vorbis