Re: [LAU] PCIe audio gear [was: Too many xruns]

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To: Fernando Lopez-Lezcano <nando@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Saturday, September 8, 2012 - 9:53 pm

On Sat, September 8, 2012 11:59 am, Fernando Lopez-Lezcano wrote:

On any normal MB PCI slot there should be no problem as the regulator has
to be sized to cover all the PCI slots as well as other MB stuff. In this
case with a PCIe slot to PCI card adapter the reg may be sized for exactly
whatever the PCI card current spec is (dumb as lots of cards, not just
audio, assume there are some empty slots they can use the excess current
capability from). What this really says (to me), is that the PCI standard
does not provide enough current for all uses... or that these adapters do
not provide current to spec... Or that some PCI cards really should have
had an external power plug because they really draw more current than the
MB is "supposed to" supply.

All of that is not a help really, to someone who is having problems. The
RME solution of having a digital PCI/PCIe card powered by the MB and and
external box with pre amps and converters on it (powered externally), is
probably the correct solution in this case. The PCI bus is not designed to
supply power for much more than digital activities. It is like expecting
to get good quality pre amp stuff and phantom from USB power... your mic
probably sounds better with 48v than 24v.

All this from the proud owner of a D66 :P 6 in and 4 out has proved (so
far) to be more than I need. But then I have never had a drum kit to
mic... or the more than 4 mics needed either. I have in the past used two
mics to record vocals and guitar, but the comb filtering drove me nuts,
one mic sounds better. So far I have not had the privilege of recording
more than one person at a time. However, I now know what to buy when I get
there... if PCIe is still around.

--
Len Ovens
www.OvenWerks.net

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Messages in current thread:
[LAU] Too many xruns, Kevin Cosgrove, (Wed Sep 5, 4:17 am)
Re: [LAU] Too many xruns, S. Massy, (Thu Sep 6, 1:55 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Sep 6, 3:48 pm)
Re: [LAU] Too many xruns, Lorenzo Sutton, (Wed Sep 5, 7:50 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Wed Sep 5, 2:43 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Wed Sep 5, 7:30 pm)
Re: [LAU] Too many xruns, Ralf Mardorf, (Wed Sep 5, 8:02 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Wed Sep 5, 2:47 pm)
Re: [LAU] Too many xruns, Ralf Mardorf, (Wed Sep 5, 7:30 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Wed Sep 5, 7:29 pm)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Wed Sep 5, 7:11 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Wed Sep 5, 7:24 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Oct 11, 6:33 am)
Re: [LAU] Too many xruns, Paul Davis, (Thu Oct 11, 10:55 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Oct 11, 4:17 pm)
Re: [LAU] Too many xruns, Brendan Jones, (Fri Oct 12, 12:33 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Fri Oct 12, 4:07 pm)
Re: [LAU] Too many xruns, Brendan Jones, (Fri Oct 12, 6:55 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Fri Oct 12, 7:01 pm)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Thu Oct 11, 6:01 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Oct 11, 6:17 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Oct 11, 4:50 pm)
Re: [LAU] Too many xruns, SxDx, (Thu Oct 11, 12:24 pm)
Re: [LAU] Too many xruns, R. Mattes, (Thu Oct 11, 3:45 pm)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Thu Oct 11, 11:00 am)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Thu Oct 11, 7:07 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Oct 11, 8:06 am)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Thu Oct 11, 8:55 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Oct 11, 3:53 pm)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Thu Oct 11, 5:58 pm)
Re: [LAU] Too many xruns, Len Ovens, (Thu Oct 11, 9:22 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Oct 11, 6:03 pm)
Re: [LAU] Too many xruns, Len Ovens, (Thu Sep 6, 5:24 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Sep 6, 3:43 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Sep 6, 5:02 pm)
Re: [LAU] Too many xruns, Joakim Hernberg, (Fri Sep 7, 8:18 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Fri Sep 7, 8:25 pm)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Fri Sep 7, 8:30 am)
Re: [LAU] Too many xruns, Joakim Hernberg, (Fri Sep 7, 9:23 am)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Fri Sep 7, 9:40 am)
Re: [LAU] Too many xruns, Fernando Lopez-Lezcano, (Sat Sep 8, 6:09 pm)
Re: [LAU] Too many xruns, Joakim Hernberg, (Fri Sep 7, 10:46 am)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Fri Sep 7, 11:03 am)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Thu Sep 6, 7:12 pm)
Re: [LAU] Too many xruns, Len Ovens, (Thu Sep 6, 4:55 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Sep 6, 5:08 pm)
Re: [LAU] Too many xruns, Paul Davis, (Thu Sep 6, 5:10 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Sep 6, 5:30 pm)
Re: [LAU] Too many xruns, Ralf Mardorf, (Fri Sep 7, 2:15 am)
Re: [LAU] Too many xruns, Joakim Hernberg, (Fri Sep 7, 7:52 am)
Re: [LAU] Too many xruns, Paul Davis, (Fri Sep 7, 10:53 am)
[LAU] PCIe audio gear [was: Too many xruns], Kevin Cosgrove, (Fri Sep 7, 2:21 am)
Re: [LAU] PCIe audio gear [was: Too many xruns], Paul Davis, (Fri Sep 7, 4:02 am)
Re: [LAU] PCIe audio gear [was: Too many xruns], Len Ovens, (Fri Sep 7, 3:29 am)
Re: [LAU] PCIe audio gear [was: Too many xruns], Ralf Mardorf, (Fri Sep 7, 3:58 am)
Re: [LAU] PCIe audio gear [was: Too many xruns], Len Ovens, (Fri Sep 7, 4:47 am)
Re: [LAU] PCIe audio gear [was: Too many xruns], Kevin Cosgrove, (Fri Sep 7, 4:58 am)
Re: [LAU] PCIe audio gear [was: Too many xruns], Len Ovens, (Fri Sep 7, 1:08 pm)
Re: [LAU] PCIe audio gear [was: Too many xruns], Kevin Cosgrove, (Fri Sep 7, 8:31 pm)
Re: [LAU] PCIe audio gear [was: Too many xruns], Kevin Cosgrove, (Fri Oct 12, 5:18 pm)
Re: [LAU] PCIe audio gear [was: Too many xruns], Fernando Lopez-Lezcano, (Sat Sep 8, 6:59 pm)
Re: [LAU] PCIe audio gear [was: Too many xruns], Kevin Cosgrove, (Sun Sep 9, 4:14 pm)
Re: [LAU] PCIe audio gear [was: Too many xruns], Len Ovens, (Sat Sep 8, 9:53 pm)
Re: [LAU] PCIe audio gear [was: Too many xruns], Ralf Mardorf, (Mon Sep 10, 10:46 am)
Re: [LAU] PCIe audio gear [was: Too many xruns], Ralf Mardorf, (Fri Sep 7, 2:42 am)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Thu Sep 6, 9:07 am)
Re: [LAU] Too many xruns, Len Ovens, (Thu Sep 6, 2:36 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Sep 6, 3:50 pm)
Re: [LAU] Too many xruns, Len Ovens, (Thu Sep 6, 5:00 pm)
Re: [LAU] Too many xruns, S. Massy, (Thu Sep 6, 4:54 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Thu Sep 6, 5:04 pm)
Re: [LAU] Too many xruns, Rui Nuno Capela, (Thu Sep 6, 8:51 pm)
Re: [LAU] Too many xruns, Jeremy Jongepier, (Wed Sep 5, 7:42 pm)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Mon Oct 1, 1:35 am)
Re: [LAU] Too many xruns, Fernando Lopez-Lezcano, (Wed Sep 5, 7:55 pm)
Re: [LAU] Too many xruns, Simon Wise, (Wed Sep 5, 5:02 am)
Re: [LAU] Too many xruns, Kevin Cosgrove, (Wed Sep 5, 2:37 pm)