[MPlayer-users] Dolby Digital (DTS?) 10 dB Boost for LFE channel

[Carl Eugen Hoyos]

Wiebe Cazemier <wiebe <at> halfgaar.net> writes:

> The Dolby standard requires the LFE channel to have a 10 
> dB boost when played back. For example, Wikipedia says:

(It would be better to quote the specification, wikipedia 
is generally very useful but not as a reference for 
codec implementation.)

> > The LFE channel is conventionally played back 10 dB 
> > louder than the main channels, giving significantly 
> > more recording headroom.
> 
> Does mplayer (or a52dec?) apply this boost? Would it 
> even be possible; won't it clip the signal?

I cannot answer the question but please note that MPlayer 
does not contain a native Dolby decoder (and that the 
"a52" decoder is really obsolete), FFmpeg contains a 
decoder that is responsible for decoding (e)ac3 in 
MPlayer and other players.

Carl Eugen