On Tue, Jun 2, 2009 at 12:44 PM, Michael B Allen <ioplex@xxxxxxxxx> wrote: > On Tue, Jun 2, 2009 at 3:25 AM, Clemens Ladisch <cladisch@xxxxxxxxxxxxxx> wrote: >> Michael B Allen wrote: >>> Does capture work with the M-Audio Fast Track USB? .... > and do arecord again just like before I can play it back and it works > but it is very faint and distorted. > > So this proves capture signal is making it to ALSA. > > However why is it so faint? > > I suppose it is distorted because I have the level set to -3dB? Well I made a little progress on this. If I do the following: # arecord -D plughw:1,0 -d 4 -t raw -f dat -c 1 /tmp/test.dat Recording raw data '/tmp/test.dat' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono # aplay -D plughw:1,0 -t raw -f dat -c 1 /tmp/test.dat Playing raw data '/tmp/test.dat' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono Then it's not distorted. But it's still faint. Is there a gain control within snd_usb_audio that needs to be set on a per device basis? I saw this about the Fast Track "Pro": http://alsa.opensrc.org/index.php/M-Audio_FastTrack_Pro but I tried using device_setup=0x11 but it had no effect. Mike ------------------------------------------------------------------------------ OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
