[LAU] master levels (and dithering)

Peder Hedlund peder at musikhuset.org
Tue Feb 3 10:41:58 UTC 2015

Quoting Ralf Mardorf <ralf.mardorf at alice-dsl.net>:

> JFTR I've got
> loss of sound quality issues when using Linux, that I don't have when
> using professional or even consumer digital hardware or even 4-track
> analog tapes with Dolby C. IMO there's something broken, at least on all
> Linux machines I used and I'm still using.

> If I record an ALESIS D4 cymbal with Linux, the result is week. If I
> record it with a consumer DAT recorder, there's no audible difference
> to the original sound. Even a 4-track cassette player with Dolby C
> still sounds better, than the Linux recording (tested with TerraTec and
> RME cards).

> Linux dithering is a PITA, it adds annoying audible noise, no stand
> alone consumer gear, no proprietary DAW and especially no professional
> gear comes with such audible dithering noise.

In the same vein you claim to be able to hear the difference between a  
properly encoded MP3 and the original WAV but refuse to do an ABX test  
to see if you really can tell them apart.

If your ears are so golden you can hear the linux dithering noise you  
should be able to ace an ABX test with ease.
Take an undithered file, dither it in linux and in some professional  
gear and see if you really can ABX them.

  - Peder

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