On Sat, 2013-03-16 at 21:05 +0100, Federico Bruni wrote:
> Il 16/03/2013 00:48, Ralf Mardorf ha scritto:
> > If I play a MP3 with
> >
> > $ pacman -Q vlc
> > vlc 2.0.5-4
> >
> > by jack and the volume is set to 100%, I hear and see clipping in
> > hdspmixer. It goes up to 0 dBFS at around 90%. FWIW the volume can be
> > increased up to 200%.
> >
> > Anybody experiencing the same on (what distro ever)?
> >
>
> I can't hear any clipping here (Debian testing) and
> VLC media player 2.0.5 Twoflower (revision 2.0.5-0-g1661b7d)
>
> Of course the sound is distorted if I push up the volume, but no clipping.
> I don't know how to see the volume levels in real time...

Julien send me a MP3 of a modern pop song, so I guess the MP3 did reach
0dbFS, I didn't check it and I already deleted the file. However, it
can't be more than 0dBFS, so I expect that at 100% it should be +- 0dB
and shouldn't cause clipping. If you push it up to > 100% than clipping
would cause distortion, that's ok. However, IMO something is fishy, if I
need to decrease it to around 90%. I've got meters provided by
hdspmixer.

--
Install pulseaudio, don't use jack
http://lists.alioth.debian.org/pipermail/d-community-offtopic/2013-March/000195.html

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