[vorbis] reencoding OGG Vorbis
gshang at uq.net.au
Wed Feb 21 12:23:36 PST 2001
On Wed, 21 Feb 2001, Moritz Grimm wrote:
> When mastering a tune digitally, you have several stereo tracks (approx.
> 10 - 20, depending on the tune), of with each of them eats up ~10 MB /
> minute. You easily get up to 2 GB space needed on your harddrive if you
> _only_ keep the original tracks and the altered ones. If you want to
> keep all intermediate steps, you need temporarily up to 10 GB per tune.
> This is damn much. To maintain the good quality of the tracks it would
> be necessary to use the highest possible bitrate, of course. But being
> able to load (decode) and save (encode) tracks within a simple or
> multitrack wave editor, would be a great thing. The requirement for not
> screwing up what you're working on would be a lossless recoding.
Well, vorbis does offer sample granularity, which means that in theory at
least you should be able to edit the vorbis data without reencoding. How
this would go for inserting audio though is a good question, maybe chained
vorbis streams? Anyway, all this aside, I wouldn't use a lossy codec like
vorbis for this. I'd suggest either regular PCM or some lossless format.
Besides, think of the grunt needed to play 10-20 vorbis streams at once.
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