hello list, i now have a midiman delta 44 for sound in/out. summer project to get it working w/ linux audio. built and installed the alsa drivers. i start pd with the following command:

[bsack@t0ast pd]$ pd -alsa -nomidi -inchannels 4 -outchannels 4 -verbose Pd version 0.32 patch 4 , compiled 11:17:47 May 4 2001 PD-ALSA: using card M Audio Delta 44 at 0xdce0, irq 10 input channels supported: 12-12 ... etc.

the "DIO errors" button is red and stays that way. the audio output is present, but choppy. the audiostatus reports:

audio I/O error history: seconds ago error type 0.00 DAC blocked 0.02 DAC blocked 0.04 DAC blocked ... etc.

a question for those who have had success with this card: what other command-line switches are needed to make pd, alsa, and the card happy? i have tried various combinations of -frags, -audiobuf, and different sampling rates with no discernable improvement.

alsa drivers are version 0.5.10b, pd is 0.32p5. hardware is pII 350mHz. kernel is 2.2.14-5.0 (RedHat 6.2)

i had a similar problem with my notebook when i tried alsa in "native mode" - it works fine in oss-emulation mode, so i use that. oss-emu mode doesn't seem to be an option for this 4-channel card, though.

thank you for any suggestions,

Bill