Re: [LAU] Dual Delta Setup

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To: <len@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Monday, December 31, 2012 - 2:03 am

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On Sun, Dec 30, 2012 at 8:50 PM, Len Ovens wrote:

> ck sets the device up (sends sample rate and buffer size) doesn't

s/pdif won't carry that information.

when i studied the ALSA code for this years ago, it looked to me as though
even on a late 1990's CPU, you could still expect both devices to start
*within* 1 sample of each other.

the problem as it been described here, seems more to be:

> >

so they can be off by 1 sample (for example) and this can happen. ALSA
needs to wait for the slowest/last of the linked devices, not the first. or
so it appears.

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On Sun, D=
ec 30, 2012 at 8:50 PM, Len Ovens <len@ovenwerks.net> wrote:=

ck sets the device up (sends sample rate and buffer size) doesn't
the multi device have to send that info to both devices? Wouldn't that<=
br>
start both at the same time? Making the difference between readiness
within a sample? (I ask because I don't know) When the master restarts,=
is
there any indication sent to the slave via s/pdif?s/pdif won't carry that information.when i studied the ALSA co=
de for this years ago, it looked to me as though even on a late 1990's =
CPU, you could still expect both devices to start *within* 1 sample of each=
other.
the problem as it been described here, seems more to be:=A0

on
's no
ss
br>
is can happen. ALSA needs to wait for the slowest/last of the linked device=
s, not the first. or so it appears.

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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)