[LAU] Dual Delta Setup

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To: <linux-audio-user@...>
Date: Saturday, December 29, 2012 - 11:43 am

Hi all,

Having recently acquired a second Delta 1010 for my setup I've been trying
to run the two in tandem using the alsa Multi hack. I'm getting the xruns
that I understand are expected but harmless[1] but I'm also getting some
audible ones, which are obviously more of a problem. They're synched via the
S/PDIF link and running either card on its own seems pretty solid.

I've seen on various mailing lists people talking about digging into this
but not found any conclusions. Is anyone here running dual Delta 1010s
who can double check I'm running the latest recommended settings?

I'm on a dual core 2.3GHz Athlon (4450e), running linux 3.2.0-2-rt with
cpu scaling disabled, and the cards have exclusive use of IRQs 17 and 18.
Jack is running at 44.1KHz with 6 frames and 64 periods, audio IRQs at
rtprio 85 and Jack at rtprio 82.

bjb

[1] http://www.jrigg.co.uk/linuxaudio/ice1712multi.html

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Messages in current thread:
[LAU] Dual Delta Setup, Ben Bell, (Sat Dec 29, 11:43 am)
Re: [LAU] Dual Delta Setup, drew Roberts, (Sat Dec 29, 6:29 pm)
Re: [LAU] Dual Delta Setup, Ben Bell, (Sun Dec 30, 2:22 pm)
Re: [LAU] Dual Delta Setup, Len Ovens, (Sun Dec 30, 4:55 pm)
Re: [LAU] Dual Delta Setup, Fons Adriaensen, (Sun Dec 30, 2:46 pm)
Re: [LAU] Dual Delta Setup, Ben Bell, (Sun Dec 30, 7:27 pm)
Re: [LAU] Dual Delta Setup, Fons Adriaensen, (Sun Dec 30, 11:33 pm)
Re: [LAU] Dual Delta Setup, Devin Anderson, (Sun Dec 30, 11:51 pm)
Re: [LAU] Dual Delta Setup, Len Ovens, (Mon Dec 31, 1:50 am)
Re: [LAU] Dual Delta Setup, Devin Anderson, (Mon Dec 31, 3:12 am)
Re: [LAU] Dual Delta Setup, Len Ovens, (Wed Jan 2, 11:35 pm)
Re: [LAU] Dual Delta Setup, Joe Hartley, (Thu Jan 3, 12:26 am)
Re: [LAU] Dual Delta Setup, Fons Adriaensen, (Thu Jan 3, 12:05 am)
Re: [LAU] Dual Delta Setup, Len Ovens, (Thu Jan 3, 3:15 am)
Re: [LAU] Dual Delta Setup, John Murphy, (Thu Jan 3, 5:04 am)
Re: [LAU] Dual Delta Setup, Len Ovens, (Mon Dec 31, 2:47 pm)
Re: [LAU] Dual Delta Setup, Paul Davis, (Mon Dec 31, 2:58 pm)
Re: [LAU] Dual Delta Setup, Len Ovens, (Mon Dec 31, 10:33 pm)
Re: [LAU] Dual Delta Setup, Paul Davis, (Tue Jan 1, 4:06 am)
Re: [LAU] Dual Delta Setup, Paul Davis, (Mon Dec 31, 2:03 am)
Re: [LAU] Dual Delta Setup, Devin Anderson, (Mon Dec 31, 2:40 am)
Re: [LAU] Dual Delta Setup, Fons Adriaensen, (Mon Dec 31, 9:24 am)
Re: [LAU] Dual Delta Setup, Paul Davis, (Sun Dec 30, 3:52 pm)
Re: [LAU] Dual Delta Setup, Fons Adriaensen, (Sun Dec 30, 4:27 pm)
Re: [LAU] Dual Delta Setup, Ben Bell, (Sat Dec 29, 10:35 pm)
Re: [LAU] Dual Delta Setup, Len Ovens, (Sat Dec 29, 6:23 pm)
Re: [LAU] Dual Delta Setup, Ben Bell, (Sat Dec 29, 10:31 pm)