[MPlayer-users] equalizer not working

[Kazuo Teramoto]

On Mon, Jun 28, 2010 at 4:04 AM, zonyi besk <zolbeso at gmail.com> wrote:
> The equalizer feature not working, replaying  with equalizer the result is a
> loud white noise sound:
> Tested with  ubuntu 9, Amd-64 bit, command line, without soundcard, original
> ubuntu deb package version, and 1.0 rc3 tar version as well.
>

This mailing list and the upstream mplayer devs only support the
latest svn version. Support for older versions (rc3 is 1 year old) and
distro patched version are not given here.

You can easy find instruction for building it.

> Using code like that and similars:
> mplayer -af equalizer=11:11:10:5:0:-12:0:5:12:12 foo.mp3 -ao
> pcm:nowaveheader:file=pcmpipe21
> cat pcmpipe21 | lame -x - out.mp3

Works for me with the with the svn version, I get some clipping, but I
think this is expected as you are adding 12dB gain. You can pre-append
a volume filter with negative gain, to help.

But this not with the lame -x, and not direct with lame, because it
dont support floatle (Unsupported data format: 0x0003). The output of
pcm with equalizer is a floatle wav file, so you need first convert it
to something supported by lame.

Regards,
Kazuo.

-- 
«Dans la vie, rien n'est à craindre, tout est à comprendre»
Marie Sklodowska Curie.