[LAU] success with Lexicon Lambda

Hey Linux Audio heads,

I'm happy to announce that after taking the plunge and buying a Lexicon
Lambda USB sound interface, that it appear to be working fine for my needs
with Linux.

specs:
MIDI in/out
Two channels duplex audio (viewed as one 'track' of stereo, or two tracks of
mono)
Two phantom powered XLR mic inputs.
Two inserts for hardware effects (send and receive on one plug)

All in all, a worthy buy....but my big tip for USB audio would be this: make
sure to pick your USB port wisely...try to pick one from a bus that has a
better IRQ priority (look at the /proc/interrupts output to find a good one,
compare to output of 'lsusb' to find optimal port) On my little laptop, it
made a HUGE HUGE difference in the occurrence of xruns/dropouts...I had jack
setup for ~20ms and still
had problems, i.e. gobs of xruns, where with the right USB port, I could get
down to 5ms with total stability, even without a low-latency kernel!!! Also,
load the snd-usb-audio module with the 'nrpacks=1' option as explained
elsewhere.

BTW, I'm running Arch Linux on my wife's old Thinkpad X40, much lighter and
quieter machine than the old Dell Inspiron 8200 I had been carrying around
for years (although the X40 has 4200rpm drives, which I think is slower than
the Dell, but so far, I haven't needed faster--we'll see)

Best,

-- 
Aaron Krister Johnson
http://www.akjmusic.com
http://www.untwelve.org
-- 
Aaron Krister Johnson
http://www.akjmusic.com
http://www.untwelve.org

_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@email-addr-hidden
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
Received on Tue Apr 28 08:15:02 2009