[MPlayer-advusers] liba52 downmixing

Jan Knutar jknutar at nic.fi
Sat Sep 3 08:04:41 CEST 2005


On Saturday 03 September 2005 07:28, Corey Hickey wrote:
> I'm trying to figure out what happens to the lfe channel of AC3 5.1
> audio when liba52 is requested to downmix. Is the lfe discarded? Is it
> mixed with the remaining channels? Is it reduced and then mixed?

Supposedly the lfe is so low frequency that it is dangerous to
pump it to regular speakers, they could be destroyed.

I once wondered about the lfe too and extracted the track from a few
DVDs and found that very few of mine actually had anything substantial
in lfe.




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