Mark, I don't know if i understand, but i'll try. I think you want to output TV Tunner plugged into Line In to both sound cards. You using some program to capture the sound of Line In(TV Tunner) and reproduze that(output) ? You can output the sound of Line In using the previous PCM created ? You have an set up of 4.1, 5.1, 7.1 speakers in your HDA or USB Sound Card ? The previous PCM created is for Stereo Speakers. 4.1, 5.1, 7.1 Speakers don't work. For 4.1 and so on, must be created another PCM to work. I don't a expert, but i think the Line In is Stereo capturing. If i'm right, you will copy Stereo channel(upmix) to 4.1, 5.1, 7.1 set up. That's all. On 10-01-2011 03:52, Mark Goldstein wrote: > HI, > > On Mon, Jan 10, 2011 at 3:57 AM, Leonardo Gomes<leogolima@xxxxxxxxxxxx> wrote: >> Yes, >> >> I think the pcm "stream" is ending with plug pcm, the multi and route >> pcm are pieces of a unique pcm pipe. >> >> This maybe help to figure that(this is pcm types order): >> >> hw --> multi --> route --> plug(ending an PCM pipe) = Complete PCM >> Stream(PCM Working for applications). >> >> Or >> >> hw --> dmix(optional) --> multi --> route --> plug(ending an PCM pipe) = >> Complete PCM Stream(PCM Working for applications). >> >> Or >> >> hw --> dmix(optional) --> multi --> route --> asym(optional - Used to >> create a duplex PCM with capture and playback capabilities) --> >> plug(ending an PCM pipe) = Complete PCM Stream(PCM Working for >> applications). >> > OK, I think I start understanding :-) > > ... >> I have lot of pcm in my .asoundrc, creating pcm for various use. >> >> I have pcm making my sound card 7.1 in more than one sound card, and etc. >> > Interesting. Actually what I eventually want to do is "extending" my > on-board HDA to duplicate sound from any source, connected to this > card, to USB headset (e.g. I have TV tuner plugged into Line In of HDA > card. And I want to hear it both on speakers connected to HDA and on > USB headset). As far as I can see, the exercise with multi - route - > plug is not exactly that. Probably I need to play with "copy"? I've > seen some advices to use Jack or Pulse instead, but I prefer > "minimalistic" approach. > > Regards, ------------------------------------------------------------------------------ Gaining the trust of online customers is vital for the success of any company that requires sensitive data to be transmitted over the Web. Learn how to best implement a security strategy that keeps consumers' information secure and instills the confidence they need to proceed with transactions. http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user