Hi, I think this can be done by the copy plugin. But not figured out how to do to use it. http://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html Plugin: copy This plugin copies samples from master copy PCM to given slave PCM. The channel count, format and rate must match for both of them. pcm.name { type copy # Copy PCM slave STR # Slave name # or slave { # Slave definition pcm STR # Slave PCM name # or pcm { } # Slave PCM definition } } How to define the master? Is not the default. One of .asoundrc tested configuration. pcm.copy { type copy slave { pcm card1 } } pcm.card0 { type hw card 0 } pcm.card1 { type hw card 1 } speaker-test -c 2 -D copy Play only on card1. - Paulino ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user