[linux-audio-dev] Paper on dynamic range compression

Fons Adriaensen fons.adriaensen at skynet.be
Tue Oct 17 14:43:39 UTC 2006


On Tue, Oct 17, 2006 at 09:59:10AM -0400, Paul Davis wrote:
> On Tue, 2006-10-17 at 11:56 +0200, Fons Adriaensen wrote:
> 
> > 'THE SAMPLES ARE NOT THE SIGNAL'. The real peak level of a
> > signal when converted to the analog domain can be several
> > dB above that of the highest sample.
> 
> indeed. there are people who are coming to believe that this "error" is
> responsible for a significant part of the audible difference between
> digital and analog playback when the levels in the source material are
> high. 

It could be. OTOH, most DACs today would upsample and filter before the
real conversion takes place, and could allow for this. But maybe they
don't, and just clip at that point.

-- 
FA

Lascia la spina, cogli la rosa.




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