My US-428 works great, but with the following caveats: - After using jack with the 4-channel input, I have to power cycle the device to use it with anything else. - In order to get latency below 10-20ms without noise, I have to change the priority of my IRQ handler with chrt. I can then get 1.67ms latency with 4in, 2out, and about 1 or 2 xruns an hour (probably caused by the binary nvidia driver). - The only program that can use inputs C/D is jackd, and it can only use inputs C/D through the four channel special device. Here is the software I'm using: Linux distribution: Kubuntu 6.10 Jackd: jackd version 0.101.1 tmpdir /dev/shm protocol 15 Kernel: 2.6.19.1-rt15 (I thought it was alsa 1.0.14rc1, /proc/asound/version reports 1.0.13) alsa-tools: alsa-tools 1.0.11-1 Console based ALSA utilities for specific ha Mike On 2/21/07, gtrfree <gtrfree@xxxxxxxxxxx> wrote: > Rui Nuno Capela <rncbc <at> rncbc.org> writes: > > > > > On Wed, February 21, 2007 01:11, gtrfree wrote: > > > > > jackd 0.102.20 > > > > THis jackd version does NOT include a crucial patch that makes the us428 > > "rawusb" work properly with 4 input channels. Try newer from SVN please, > > or wait for pending new 0.103.0 release, real-time-soon :) > > Hi Rui, > I dowloaded just usx2y.c file and now seems ok. All 4 ins works, honestly just > in Ardour (with Rosegarden there's a little noise in the background but I can > use it as a midi-sequencer) and Muse don't understand that jackd is running. > It's not a surpirise, with all svn-jack should be ok, then there also the /tmp > setting and so on. > But who cares? It works :-) > > > > ALSA/USX2Y: Cannot open hwdep device "hw:1,1" > > > Didn't this line rang any bell? :) > > Just guitar strings ringin' here! ;-) > > Thank you very much. > Cheers. > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
