[Voyage-linux] Re: voyage-mpd and Ayre QB9

[Frank Lübeck]

On Mon, May 02, 2011 at 03:13:48PM -0700, Demian Martin wrote:
> We have had good success with Voyage Linux, the latest Alsa (1.0.23 &
> 1.0.24) and The Wavelink from Wavelength that uses the same code for the USB
> interface. Here is the specific section of MPD (again latest) that we use:
> 
> audio_output {
>        type          "alsa"
>        name          "USB"
>        device        "hw:1"    # optional
>        mixer_device  "hw:1"        # optional
>        mixer_control "PCM"         # optional
>        mixer_index   "0"           # optional
> }
> 
> This bypasses any other setup configs in the system and you may need to
> figure out the ID of the usb device, use aplay -l to identify it. This has
> worked well with any of the USB devices we have tried, however there are
> very few UAC2 devices in the world that do not use Gordon Rankin's code.
> Those that do I have been unable to get for testing yet.
>       Demian
>       Auraliti

I have tried that, but it didn't work. The problem seems to be that the
device it not correctly initialised. 
My guess is that this is a small problem for someone who knows the technical
details. But I'm still not sure if the error is in (the firmware of) the
device or in the Linux USB subsystem (or maybe the Linux USB audio drivers).

Frank