Re: [Alsa-user] Virtual 12 channel device

2013-03-20 Thread Sheldon Hearn
On Wed, Mar 20, 2013 at 8:58 AM, Sheldon Hearn wrote: > On Tue, Mar 19, 2013 at 9:18 PM, Sheldon Hearn wrote: >> Mar 19 18:39:39 wrox kernel: [ 616.451607] ALSA sound/usb/endpoint.c:874 >> cannot submit urb 0, error -28: not enough bandwidth >> Mar 19 18:39:39 wrox kernel: [ 616.453600] ohci_h

Re: [Alsa-user] Virtual 12 channel device

2013-03-20 Thread Sheldon Hearn
On Tue, Mar 19, 2013 at 9:18 PM, Sheldon Hearn wrote: > Mar 19 18:39:39 wrox kernel: [ 616.451607] ALSA sound/usb/endpoint.c:874 > cannot submit urb 0, error -28: not enough bandwidth > Mar 19 18:39:39 wrox kernel: [ 616.453600] ohci_hcd :00:12.1: leak ed > 8800cf81f870 (#06) state 2

Re: [Alsa-user] Virtual 12 channel device

2013-03-19 Thread Sheldon Hearn
On Tue, Mar 19, 2013 at 1:27 PM, Clemens Ladisch > > Speaker-test will play sound out of all channels of each card when > > I test them independently. > > What happens if you run two speaker-test instances for the two cards > at the same time? Interesting. I got inconsistent results a few times an

Re: [Alsa-user] Virtual 12 channel device

2013-03-19 Thread Clemens Ladisch
Sheldon Hearn wrote: > I have gotten to the point where using speaker-test to test the > virtual device will play sound out of the all of the first card's > channels, but none of the second card's channels. > > Speaker-test will play sound out of all channels of each card when > I test them indepen

[Alsa-user] Virtual 12 channel device

2013-03-18 Thread Sheldon Hearn
Hi there, I'm trying to create a virtual 12 channel device from 2 6 channel USB sound devices, as per http://www.alsa-project.org/main/index.php/Asoundrc#Virtual_multi_channel_devices The point is to be able to use csound to drive all 12 channels, which will be hooked up to control a laser displa