26 Aug
2010
26 Aug
'10
4:26 p.m.
On Thu, Aug 26, 2010 at 2:08 AM, david <gnome(a)hawaii.rr.com> wrote:
David Santamauro wrote:
That would imply that everyone using a 1010LT in Linux would
experience the same noise, correct?
If I understand, you are saying that the card, with nothing plugged
into it, shows noise coming out of the card? If so it sounds like a
bad card.
If he's local can you ask your Windows friend to plug your card into
his system for testing and see if it's noisy or not? Good weekend
project if he's game.
- Mark
Hi,
On Tue, 24 Aug 2010 12:46:06 -0700
Niels Mayer <nielsmayer(a)gmail.com> wrote:
Or the Windows drivers are doing something that removes the noise?
I have a friend who has a Delta 1010LT in his WindowsXP-based audio
workstation. He's never said anything about input noise.
On Tue, Aug 24, 2010 at 8:13 AM, David Santamauro
<
david.santamauro(a)gmail.com> wrote:
interesting angle ...
envy24control (and the new mudita24) register this noise on input
whether devices are plugged in or not. So the noise is clearly coming
from either the delta breakout, card or driver. I've ruled out the
breakout box and card simply by the fact that the noise doesn't exist
on the same hardware with windows7 drivers. thanks for the time. I only have one PCI slot,
but 3 empty PCI-x
slots.
I basically unplugged all USB devices as well as shut off both
network interfaces and on board audio interface in the bios and the
noise persists ...
Not sure what to try next, this was a shot-in-the-dark.
If you think it's a interrupt-sharing issue, consider using a
pcie-to-pci riser to plug in your card. Apparently, this way of doing
things may ensure less bus contention:
http://old.nabble.com/does-a-pci-e-x1-to-pci-adapter-work-with-Linux-soundc…
Also, be sure that interrupt contention is really the problem. If
it's a constant noise, there's a better chance that it's a different
problem. One issue is that your recording software may not be using
the same bit depth, alignment, or complement as what the card
expects. I can get this effect on output, for example, simply by
using 'mplayer'