Dear Julien:
Thank you very much for your detailed suggestions! However I tried
them but they did not work for me :(
Since I am really a newbie about sound management of ALSA I can hardly
understand your configration, so
what I could do was just to paste them into my .asoundrc. I am reading
manual of ALSA and I wish I can understand
your suggestion better after reading to make some modification......
Thank you very much Julien. Have a nice weekend:)
Peng
On Fri, May 1, 2009 at 11:10 AM, Julien Claassen <jul...@c-lab.de> wrote:
> Hi!
> I never used virtualbox or whatever. I guess it is seem kind of virtual
> machine like vmware?
> I can help you with mplayer a bit though. It's running on my system and it
> works just fine. Nowadays I like to have an easy life though and I use JACK.
> But in the old days I just did this:
> mplayer -ao asa,default file.whatever
> Worked wonderfully. OK I'm a bit left behind, I'm still using Linux 2.6.23.
> You might try the following: Take an example from alsawiki, that uses a
> simple plug PCM device. Might look like this:
> pcm.my_dev {
> type plug
> slave { pcm "hw:0" }
> }
> And I found setting the mixer correctly a problem, when I started using my
> card. I always use alsamixer, which is the ncurses (interactive textbased)
> variant. I set the IEC958 items both to PCM out, then made sure to setup all
> volume controls, set the sample clock and all the syncing stuff connected to
> it to one rate (48000Hz for me, 44100Hz is fine, it's CD quality).
> Then you might want to create a device in .asoundrc, that gives just two
> INs and two OUTs.
> You can also tell ALSA to use JACK for audio I/O. With that you can easily
> have a device which has only 2INs and 2OUTs.
> I did this. It looks like that:
> pcm.myjack
> {
> type jack
> palyback_ports
> {
> 0 system:playback_1
> 1 system:playback_2
> }
> capture_ports
> {
> 0 system:capture_1
> 1 system:capture_2
> }
> }
>
> pcm.!default
> {
> type plug
> slave
> {
> pcm "myjack"
> }
> }
>
> You can see ALSa starts counting at 0 and jack starts at 1. If you don't
> want your two XLR microphone inputs, but a pair of the simple chinc inputs
> then just exchange system:capture_1 and 2 to 3 and 4.
> It works with mplayer. So if your mplayer has no JACK support, no problem.
> You could just use this way around.
> Give it a try, perhaps even VirtualBox takes it easy with that solution. I
> think it's possible.
> Kindest regards
> Julien
>
> --------
> Music was my first love and it will be my last (John Miles)
>
> ======== FIND MY WEB-PROJECT AT: ========
> http://ltsb.sourceforge.net
> the Linux TextBased Studio guide
> ======= AND MY PERSONAL PAGES AT: =======
> http://www.juliencoder.de
>
------------------------------------------------------------------------------
Register Now & Save for Velocity, the Web Performance & Operations
Conference from O'Reilly Media. Velocity features a full day of
expert-led, hands-on workshops and two days of sessions from industry
leaders in dedicated Performance & Operations tracks. Use code vel09scf
and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf
_______________________________________________
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
