Hi list,
I'm now running Pd under Red Hat Linux, and (like everybody else) I've run into some questions about audio/MIDI drivers. Would anyone already know the answers to these?
- I've got an OplSa3 soundcard and so far I've been using the OSS drivers
(the free ones from the RedHat 5.2 CDROM). I notice that the ADC noise floor (measured in the test tone patch) is around 45 dB, whereas the SAME HARDWARE gets a noise floor of 20 dB under NT. I've got a wild guess that this might be related to which of the two "DMA channels" I assign to "DMA0" and "DMA1"... any other wild guesses out there?
- I also want to test the ALSA drivers. I note in the ALSA FAQ (part
of the release) that ALSA comes with an OSS compatibility package. So is there any advantage to using the ALSA drivers "natively" (as s_alsa.s does) rather than just using s_linux.c and having ALSA emulate OSS audio?
- Same question for MIDI... is it likely to be worth the trouble of
rewriting the MIDI I/O code to address ALSA natively?
If any of you have any experience that might suggest answers to these I'd be grateful!
Miller