2009/5/30 Tim <ignored_mailbox@xxxxxxxxxxxx>: > On Thu, 2009-05-28 at 01:29 -0700, suvayu ali wrote: >> Most of the modern Intel HDA cards _are_ capable of mixing streams. I >> have owned one such card since 2007. Also most of the hi-end boards >> today support multiple streams. However I am not sure whether >> pulseaudio can stream two different streams to these sound cards and >> let it playback in two different devices. A very common situation >> would be something like a skype call on a headphone without >> interrupting music playback on external speakers. > > You could only do that if you have two *separate* *output* hardware > circuits. Lots of cards only have one output system. They might give > you separate volume controls for speakers or headphones, but both > control the same thing (one output source), they just switch between > which control to use depending on whether you've plugged a headphone, in > or not. Which makes more sense than at first seems. > > e.g. My laptop has silly little speakers that always need full volume, > my headphones work normally. It's handy to set the level for each > appropriately, and not have to move the volume up and down between them, > just because I've plugged a lead in. > I first used this on an Intel 975XBX2 workstation board I bought in 2007. It _is_ capable of multi-streaming, I could set up my drivers to present to the apps as two different output devices. So I had skype configured to use the front jacks and I used the rear jacks to stream to the line-in of my home entertainment system. So much so, I even had skype ring through the rear jacks so that I could hear even if I didn't have my headphones on but the call itself would use the headphones connected to the front jacks. And I never paused my music palyback during skype calls, I always turned it down rather than stop. (I'm kind of a music addict :) ) My current board is a Gigabyte board with a Realtek audio chipset with similar multi-streaming capabilities. However for some other (unrelated) unsolvable reasons, I have not done this setup yet. Both of these are integrated audio chips. To get this working all you need are proper drivers. Hardware is _not_ the bottleneck here. -- Suvayu Open source is the future. It sets us free. -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
