Hi,

2014-02-12 13:27 GMT+01:00 madshi <[email protected]>:
> According to eac3to, some 24bit files have the
> lower 4bit zeroed out, so they are really 20bit, but they are
> encoded as 24bit.

Err, I would expect quantization/reconstruction/... to always create
noisy bits, even if on the LSB and very seldom. Otherwise it is
virtually lossless. Otherwise the noise is on the 4th LSB and it means
the output is effectively scaled.

Are you sure it's not just a convenience to output the more practical,
aligned 24bits? Like something in the bitstream actually indicating
"shift left 4 bits", and the audio is *actually* 20 bits?

You probably know better than me, but I can't make sense of that.
-- 
Christophe
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