/usr/share/alsa/pcm
NameSizeModeActions
center_lfe.conf8030644editdlrm
default.conf7600644editdlrm
dmix.conf16520644editdlrm
dpl.conf6450644editdlrm
dsnoop.conf15340644editdlrm
front.conf8020644editdlrm
hdmi.conf11860644editdlrm
iec958.conf12180644editdlrm
modem.conf13120644editdlrm
rear.conf7420644editdlrm
side.conf7420644editdlrm
surround21.conf9230644editdlrm
surround40.conf9010644editdlrm
surround41.conf10040644editdlrm
surround50.conf10030644editdlrm
surround51.conf9540644editdlrm
surround71.conf10020644editdlrm
Edit: /usr/share/alsa/pcm/dpl.conf (645B)
pcm.!dpl { @args [ SLAVE ] @args.SLAVE { type string } type route slave.pcm $SLAVE slave.channels 2 # input: FL/FR/SL/SR/C/LFE # S=SL+SR, LFE not used ttable.0.0 1 ttable.1.1 1 ttable.2.0 0.707 ttable.2.1 -0.707 ttable.3.0 0.707 ttable.3.1 -0.707 ttable.4.0 0.707 ttable.4.1 0.707 ttable.5.0 0 ttable.5.1 0 } pcm.!dpl2 { @args [SLAVE] @args.SLAVE { type string } type route slave.pcm $SLAVE slave.channels 2 # input: FL/FR/SL/SR/C/LFE # LFE not used ttable.0.0 1 ttable.1.1 1 ttable.2.0 0.866 ttable.2.1 -0.5 ttable.3.0 0.5 ttable.3.1 -0.866 ttable.4.0 0.707 ttable.4.1 0.707 ttable.5.0 0 ttable.5.1 0 }