There have been a couple of messages back and forth and I realized I forgot cc:ing to the list, so here is a re-reply just to make amends. /A --------- I found a version of it here: http://wiki.linuxquestions.org/wiki/M-Audio_Quattro although it mentions /root/.asoundrc as proper placement which I would not recommend. The idea is to create a "multi" device from your two hardware devices (e.g. hw:0,0 and hw:1,0) as described for the Quattro. Then create a "plug" device for handling automatic conversion (your software might not support the precise format needed by the "multi" device). In the example there is a routing table for the "plug" device consisting of expressions like "ttable.0.0 1;" Those _expression_ mean something like "route input nr 0 to output nr 0 with level 1". Channels are numbered from 0. By doing something like ttable.0.0 1; ttable.1.1 1; ttable.0.2 1; ttable.1.3 1; you duplicate what is coming on the first two channels from your software to the two output channel pairs. If you have setup the "multi" device properly that would mean sound out on both devices. There are a number of pitfalls that may need to be Avoided, but give it a go and shout back if you get stuck! Regards, /A 23 jul 2012 kl. 18:58 skrev Doug <dmcgarrett@xxxxxxxxxxxxx>: On 07/23/2012 06:19 AM, Anders Genell wrote: You put it in the alsa settings file, which is either ~/.asoundrc if you want setting to apply only to one user (namely you) or /etc/asound.conf if you want system wide settings. The latter needs root access. It may be that neither of them exists in which case you have to create them e.g. by saving the proposed setting into a new file. I have not tested 'copy' myself but there is another function in alsa which allows syncing of multiple sound cards, called 'multi'. I have used an excellent how-to to get an m-audio Quattro USB running on alsa that uses 'multi' - I'll see if I can dig up the link... /Anders Thank you, Anders. I would really appreciate it you can find it. --doug
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