rbl wrote: 
> It says that it recommends 14dB headroom which sounds sensible. 14dB is
> also well within the extra 8 bits resolution the SB3's 24bit DAC gives
> you so there shouldn't be any loss in audio quality. 
> 
> But the problem is I don't know how to get LMS 7.9.2 to do this? It
> doesn't seem to have any headroom at the moment as tracks with a peak of
> 1.0 and a Gain > 0.0 don't seem to have their volume increased at all.
> Any idea how to do this?

If I'm understanding the way ReplayGain works, the 14dB headroom gets
'built in' when it calculates the gain for a track/album, relative to
the pink noise reference.  

See 'Gain calculation' at
http://wiki.hydrogenaud.io/index.php?title=ReplayGain_specification#Gain_calculation

But, obviously, it's also up to the player (so, LMS in this instance) to
implement the application of ReplayGain.

See 'Player requirements' at
http://wiki.hydrogenaud.io/index.php?title=ReplayGain_specification#Player_requirements

So far as I know, LMS doesn't have any form of pre-amplification. 
Beyond that, I don't anything specific about how LMS does loudness
normalization or clipping prevention.  Maybe mherger or someone else who
knows a lot more about it than I do (which leaves the field wide open)
will be along...

Spider



Duet x 3, via various hi-fi. LMS on Raspbian/Linux 10 (buster) + OMV5 on
a Pi4.
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