On Wed, Dec 30, 2009 at 5:28 PM, Grant <emailgrant@xxxxxxxxx> wrote: > My Wavelength Proton USB DAC works with the "default" device and with > "plughw:0,0", but it does not work with "hw:0,0". I get the following > error: > > output: Failed to open "Wavelength Proton" [alsa]: ALSA device > "hw:0,0" does not support format 16: Invalid argument > > When trying to play a 24-bit file instead of 16-bit, "16:" is replaced > by "24:" in the error message. The DAC supports 16-bit and 24-bit > audio, and the manufacturer has assured me that it enumerates with > Windows and Mac without error. Does this look like an ALSA bug? > > - Grant Possibly it's something like Alsa not understanding it's a device it will support. I assume it's visible in lsusb or using usbview? What does cat /proc/asound/cards show? I've got a couple of USB audio devices. Mine are really cheap things that do USB to optical conversion. I think they both were a little difficult to set up originally. I don't see Wavelength here as a supported device: http://www.alsa-project.org/main/index.php/Matrix:Main Maybe this is an aftermarket of some other supported device and just needs a USB ID to get ALSA to recognize it? - Mark ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
