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22

2012-Mar

Prodigy HD2 Advance software mixing with alsa dmix

Developer: mkkot Views: 16638

Hello,
do you know any working configuration for ALSA dmix in order to play sound from multiple sources in the same time? Solutions found in the Internet don't work for me.
profile

audiotrak

2012.03.22 14:40
Hello.

Unfortunately, we can't support Linux formally.
Basically, we support Windows XP, Vista and 7.
Sorry we couldn't help you.
profile

mkkot

2012.03.25 19:33
Okay, so here is informal Linux support:

put in ~/.asoundrc :

# This config is (C) copyright Alexander Prokopyev (aulix.com), 2011
# modified by mkkot, 2012: ALC888 card removed

##### Hardware Aliases #####

pcm.music_card {
type hw;
card HD2; # Live
}
ctl.music_card {
type hw;
card HD2; # Live
}



######################### MUSIC ###########################
pcm.music_mixer {
type dmix;
ipc_key 1478;
ipc_key_add_uid false; # let multiple users share
ipc_perm 0777; # IPC permissions (octal, default 0600)
slave {
pcm music_card; # "hw:HD2,0"
format S32_LE;
# period_time 0;
# period_size 1024;
# buffer_size 4096;
rate 44100;
}
}
ctl.music_mixer ctl.music_card;

pcm.music_dm {
type plug;
slave.pcm "music_mixer";
}
ctl.music_dm ctl.music_card;

##### DEFAULT #######

pcm.!default pcm.music_dm;
ctl.!default ctl.music_dm;

If your apps still refuse playing sounds, go to theirs configuration and select "default" sound card. It's needed for example in KDE's Phonon.

Please don't ask me what all of those options are for, I find ALSA configuration quite bizarre.
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