Because of only the addition of the left and right signal I searched the internet for a better solution.
Especially with loud mixed songs otherwise it sounds horrible; because the output is digitally overloaded.
The ladspa-plugin "Matrix: Stereo to MS (matrixStMS, 1420)" from Steve Harris works much better:
http://plugin.org.uk/ladspa-swh/docs/ladspa-swh.html#tth_sEc2.70
the mpayer-command for a matrix-stereo-to-mid-side
mplayer -af ladspa=/usr/lib/ladspa/matrix_st_ms_1420:matrixStMS '/home/path.to/eels - beautiful freak/05 not ready yet.mp3'
or:
-af ladspa=/usr/lib/ladspa/matrix_st_ms_1420:matrixStMS
as option
Especially with loud mixed songs otherwise it sounds horrible; because the output is digitally overloaded.
The ladspa-plugin "Matrix: Stereo to MS (matrixStMS, 1420)" from Steve Harris works much better:
http://plugin.org.uk/ladspa-swh/docs/ladspa-swh.html#tth_sEc2.70
the mpayer-command for a matrix-stereo-to-mid-side
mplayer -af ladspa=/usr/lib/ladspa/matrix_st_ms_1420:matrixStMS '/home/path.to/eels - beautiful freak/05 not ready yet.mp3'
or:
-af ladspa=/usr/lib/ladspa/matrix_st_ms_1420:matrixStMS
as option