Vorbis is not Theora

“Recently I have started to mess around with the Vorbis audio
codec, commonly found within the Ogg media container. Unlike
Theora, which I had also experimented with but won’t post the
results for fear of a backlash, I must say I am rather impressed
with Vorbis. I had no idea that the open source community had such
a high quality audio codec available to them. Previously I always
sort of passed off Vorbis’ reason for being regarded as ‘so great’
within the community as simply a lack of options. However after
some comparative tests between Vorbis and MP3 I must say I am a
changed man. I would now easily recommend Vorbis as a quality
choice if it fits your situation of use.

“What is Vorbis?

“Like I had mentioned above, Vorbis is the name of a very high
quality free and open source audio codec. It is analogous to MP3 in
that you can use it to shrink the size of your music collection,
but still retain very good sound. Vorbis is unique in that it only
offers a VBR mode, which allows it to squeeze the best sound out of
the fewest number of bits.”

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