[Flac-dev] Variable Bit Rate
brianw at sounds.wa.com
Mon May 23 11:46:34 PDT 2011
On May 23, 2011, at 10:26, Dennis Brunnenmeyer wrote:
> Is FLAC a variable bit rate format when streamed? If so, how can it
> be truly lossless?
No offense intended, but your logic is backwards. You should be
asking: How can a constant bit rate format be truly lossless ...
unless it is not compressed at all.
Look at it this way: You can either guarantee a low bit rate, and
you'll have to lose data to fit ... or you can guarantee that no data
is lost, and you'll have to adjust the bit rate up to guarantee
that. You can't have both the guarantee of a (low) target constant
bit rate and a guarantee that nothing will be lost when you reduce
bit rate below uncompressed.
Masklinn actually did a great job of explaining why, I just wanted to
present a different way of looking at the problem.
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