[Alsa-user] Alsa Devices Impossible to Address

2006-08-10 Thread Cefn Hoile
THE BASIC PROBLEM I have managed to set up a debian system with Alsa recognising 4 identical soundcards - C-Media USB Headsets. However, I am only able to address one of the devices by name, or by hardware address. One of these devices is apparently assigned the identifier 'default' by alsa

Re: [Alsa-user] Alsa Devices Impossible to Address

2006-08-10 Thread Stefan BrĂ¼ns
Cefn Hoile wrote: > THE BASIC PROBLEM > > I have managed to set up a debian system with Alsa recognising 4 > identical soundcards - C-Media USB Headsets. However, I am only able > to address one of the devices by name, or by hardware address. > > One of these devices is apparently assigned the

Re: [Alsa-user] Alsa Devices Impossible to Address

2006-08-11 Thread Cefn Hoile
Thanks, Stefan. Your suggestion to address the cards via plug:hw:0 through plug:hw:3 works fine. However, addressing them as default:0 through 3 doesn't work on my system (Debian Sarge). Every invocation using the word default like this routes to the same device - the default card. I can't

Re: [Alsa-user] Alsa Devices Impossible to Address

2006-08-11 Thread Lee Revell
On Fri, 2006-08-11 at 10:50 +0100, Cefn Hoile wrote: > Now I have a way to address the cards, I need to implementing the > virtualisation of these individual cards into a single mega-sound > device! > For anyone who's interested, the plan is to build this... > http://cefn.com/curiosity/tag/pipe

Re: [Alsa-user] Alsa Devices Impossible to Address

2006-08-12 Thread Petr Antos
Lee Revell joe-job.com> writes: > How many USB controllers do you have? There's no way you can run more > than one or two USB audio devices per controller - USB does not have > enough bandwidth. > > Lee Sure, in fact I had similar idea to use more usb-audio adapters with HUBs and as I researc

Re: [Alsa-user] Alsa Devices Impossible to Address

2006-08-16 Thread Cefn Hoile
I was planning to either run the cards on multiple USB Hubs or buy multiple PCI USB 2.0 cards and stick these in the back of the machine. I've bought 3 7-port USB2.0 hubs to hit my 16 card target. The worst case scenario I had in my mind was that 4 PCI 4-port USB 2.0 cards would need to be