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Noise Shaping for high rez files and streams



 
 
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Old February 18th 17, 10:59 AM posted to uk.rec.audio
Iain Churches[_2_]
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Default Noise Shaping for high rez files and streams


"Dave Plowman (News)" wrote in message
...
In article ,
Phil Allison wrote:
Brian-Gaff wrote:

In the very start of digital some recordings looked fantastic on specs
but sounded crap, seeming like they had some kind of noise gate on
them. then came dither, which made recordings sound right again. I'll
just leave this hanging there....




** One of the first CDs I bought was of solo classical piano on the
Erato label. At the end of each track, as the final note faded down it
turned into a fizzing sound. This was noticeable at other quiet times
too.


It was also common practice on early CDs made from older analogue tapes to
have a steeper fade out at the end of a track than on the original vinyl
so you got silence between tracks. Never did see the point of that.


Tracks on analogue tapes are separated by a
three second leader (silence) so no fade of any kind
is required for either lacquer or CD mastering.

But, the 30dB lower noise floor on CD may have
given you that impression.


Iain











 




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