[Csnd] Re: Re: Re: ALSA and -b weirdness

Date	2010-12-03 20:19
From	"Art Hunkins"
Subject	[Csnd] Re: Re: Re: ALSA and -b weirdness
	My dmix setting is 48000 samples/sec also. I changed it to 44100 (with csd sr=44100 and ALSA audio = -odac), but still got the same error message - even after rebooting. I also tried your third option - specifying -odac:plughw. Same result. Art Hunkins ----- Original Message ----- From: Rene Jopi To: csound@lists.bath.ac.uk Sent: Tuesday, November 30, 2010 5:15 PM Subject: [Csnd] Re: Re: ALSA and -b weirdness Hi, I had the same problem on Ubuntu. In the file /urs/share/alsa/alsa.conf my dmix setting is 48000 samples/sec. So i have to use the following settings to avoid the errors you have: dmix set to 48000, csd sr =48000, alsa audio output is -odac or dmix set to 44100, csd sr =44100, alsa audio output is -odac or dmix set to 48000, csd sr =44100, alsa audio output is -odac:plughw This is on Ubuntu, hope this help. Cheers, René 2010/11/30 joachim heintz <jh@joachimheintz.de> what happens if you try ksmps=64 and -b 256? Am 30.11.2010 um 22:06 schrieb Art Hunkins: I've got the following CsOptions in a .csd: -odac -+rtaudio=alsa -+rtmidi=alsa -M hw:1,0 -m0d --expression-opt -b128 -B2048 -+raw_controller_mode=1 I'm running Sugar-on-a-Stick (Fedora/Linux). On certain hardware only (particularly an Intel Classmate PC, but others as well) I get the following error message in my log (crash): ALSA: opened MIDI input device 'hw:1,0 orch now loaded audio buffered in 128 sample-frame blocks ALSA: -b 128 not allowed on this device; use 204 instead *** Error setting period time for real-time audio Failed to initialize real time audio output All works fine on most systems. My SR = 44100 (stereo); Ksmps = 100. If I change to SR = 48000 or SR = 32000, no problem. (BTW, changing to -b 204 doesn't work either; if I change to the recommended -b value, at the third or fourth recommendation [each time it recommends a new value], it works. Any idea what is happening? Art Hunkins Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound" Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"