Hello, I'm trying to set up my M-Audio Delta 66 using the alsa drivers (ice1712) to enable it to play back from more than one sound source at the same time, mainly for playback via XMMS whilst still hearing sound notifications on the PSI jabber client.
I'm running Debian unstable, with kernel 2.6.5, and the alsa and ice1712 drivers are compiled as modules, i have enabled; Advanced Linux Sound Architecture Sequencer Support Sequencer Dummy Client OSS Mixer API OSS PCM (digital audio) API OSS Sequencer API RTC Timer Support PCI Devices ICEnsemble ICE1712 (Envy24) My modprobe.conf options are as follows; alias char-major-116 snd alias char-major-14 soundcore options snd major=116 cards_limit=4 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss alias /dev/dsp* snd-pcm-oss alias snd-card-0 snd-ice1712 alias snd-slot-0 snd-card-0 alias sound-slot-0 snd-slot-0 Previously, before following various documentation on http://alsa.opensrc.org, i was running without an ~/.asoundrc, which worked fine except only one application could access the soundcard at any one time, so i reluctantly tried arts but ran into various problems (including instability) and the constant need to disable it for various apps and of course for actual recording. So i looked into running dmix, which appeared to achieve all of my goals, except from the offending problem, the loud crackle on playback. This is my ~/.asoundrc; pcm.dmixer { type dmix ipc_key 1024 slave { pcm "hw:0,0" period_time 0 period_size 1024 buffer_size 4096 rate 44100 } bindings.0 0 bindings.1 1 } pcm.!default { type plug slave.pcm "dmixer" } Please note the buffer size is less than 6553. I have tried increasing the buffer size (in powers of 2) and likewise the period time and size, but to no avail. The crackle is also evident on other software, such as xine. I have changed the sound player in PSI from play to dplay to ensure i'm using an alsa compatible program, and i can happily say that in this scenario, apart from the crackle, i am able playback from more than one source at the same time. Any help would be greatly appreciated! I hope i have provided enough information. Many thanks, Dan Halson ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
