16 Feb
2008
16 Feb
'08
3:33 p.m.
Hi there,
I'm new to Linux Audio Users mailing list.
I'm a Pardus (a Turkish distro) user and i'm trying to get rid of Cubase
Protools etc.
For a long time i downloaded and setup most of the audio packages and i'm
using them for a while.
My audio Card is an M-Audio 24/96 and it works fine. There's no latency etc.
But i hear too much Pops and clicks when using soft synths.
Especially when doing something else like dragging windows or other things.
This problem is same for Ardour. Any action i do,(like dragging something,
moving mouse) affects the sound processing.
Too much Pops and clicks. I set my buffer to 512 samples and my hardware is
strong enough.
Any ideas ? Or previous threads about this ?
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
16 Feb
16 Feb
5:27 p.m.
On Sat, Feb 16, 2008 at 09:33:46PM +0200, Arda Eden wrote:
Hi there,
I'm new to Linux Audio Users mailing list.
I'm a Pardus (a Turkish distro) user and i'm trying to get rid of
Cubase Protools etc.
For a long time i downloaded and setup most of the audio packages and
i'm using them for a while.
My audio Card is an M-Audio 24/96 and it works fine. There's no latency
etc. But i hear too much Pops and clicks when using soft synths.
Especially when doing something else like dragging windows or other
things. This problem is same for Ardour. Any action i do,(like dragging
something, moving mouse) affects the sound processing.
Too much Pops and clicks. I set my buffer to 512 samples and my
hardware is strong enough.
Any ideas ? Or previous threads about this ?
--
I guess you are not getting xruns under jack when these pops
occur?
I think you need to tweak your IRQ settings.. make sure your card
is on a separate IRQ and then look here about increasing the IRQ
priority:
http://tapas.affenbande.org/wordpress/?page_id=40
I am not sure about your distro but you may also be affected by
"nptl hell", in which case I would suggest changing distro:
http://tapas.affenbande.org/wordpress/?page_id=18
James
5:30 p.m.
On Sat, 2008-02-16 at 21:27 +0000, James Stone wrote:
am not sure about your distro but you may also be
affected by
"nptl hell", in which case I would suggest changing distro:
NPTL Hell affects only 2.4 kernels or very very early 2.6 kernels. It is
not and has never been an issue in distributions using kernels from the
last 2 years or so.
5:42 p.m.
On Sat, Feb 16, 2008 at 04:30:36PM -0500, Paul Davis wrote:
On Sat, 2008-02-16 at 21:27 +0000, James Stone wrote:
Thanks for the heads up.. This is clearly not an issue then..
The other thing I forgot to note was the pci latency settings. On
my system I have been using a script I got from this mailing
list (was it yours Paul?):
#!/bin/sh
case $1 in
start)
# "open up" the PCI bus by allowing fairly long bursts for
all devices, increasing performance
setpci -v -s "*:*.*" latency_timer=b0
# maximise latency for SBLive!, thus allowing
# more data per PCI transfer and minimizing xfuns
setpci -v -s 01:0a.0 latency_timer=ff
esac
exit 0
obviously requiring altering 01:0a.0 to match the results of lspci -v for the
soundcard in your system.
James
am not sure about your distro but you may also
be affected by
"nptl hell", in which case I would suggest changing distro:
NPTL Hell affects only 2.4 kernels or very very early 2.6 kernels. It is
not and has never been an issue in distributions using kernels from the
last 2 years or so.
5:50 p.m.
My kernel version is 2.6.18.8-86 so it's not this HELL thing. I'm glad.
I'll check for the IRQ and PCI then.
Thanks.
On Feb 16, 2008 11:42 PM, James Stone <jamesmstone(a)gmail.com> wrote:
On Sat, Feb 16, 2008 at 04:30:36PM -0500, Paul Davis
wrote:
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
On Sat, 2008-02-16 at 21:27 +0000, James Stone wrote:
Thanks for the heads up.. This is clearly not an issue then..
The other thing I forgot to note was the pci latency settings. On
my system I have been using a script I got from this mailing
list (was it yours Paul?):
#!/bin/sh
case $1 in
start)
# "open up" the PCI bus by allowing fairly long bursts for
all devices, increasing performance
setpci -v -s "*:*.*" latency_timer=b0
# maximise latency for SBLive!, thus allowing
# more data per PCI transfer and minimizing xfuns
setpci -v -s 01:0a.0 latency_timer=ff
esac
exit 0
obviously requiring altering 01:0a.0 to match the results of lspci -v for
the
soundcard in your system.
James
am not sure about your distro but you may also
be affected by
"nptl hell", in which case I would suggest changing distro:
NPTL Hell affects only 2.4 kernels or very very early 2.6 kernels. It is
not and has never been an issue in distributions using kernels from the
last 2 years or so.
5:58 p.m.
This is a part of my lspci -v output:
00:0a.0 Multimedia audio controller: VIA Technologies Inc. ICE1712 [Envy24]
PCI Multi-Channel I/O Controller (rev 02)
Subsystem: VIA Technologies Inc. M-Audio Delta Audiophile
Flags: bus master, medium devsel, latency 32, IRQ 177
I/O ports at d800 [size=32]
I/O ports at d400 [size=16]
I/O ports at d000 [size=16]
I/O ports at b800 [size=64]
Capabilities: [80] Power Management version 1
00:0d.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host
Controller (rev 46) (prog-if 10 [OHCI])
Subsystem: VIA Technologies, Inc. IEEE 1394 Host Controller
Flags: bus master, stepping, medium devsel, latency 32, IRQ 177
Memory at dd800000 (32-bit, non-prefetchable) [size=2K]
I/O ports at b400 [size=128]
Capabilities: [50] Power Management version 2
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5500]
(rev a1) (prog-if 00 [VGA])
Flags: bus master, 66MHz, medium devsel, latency 248, IRQ 177
Memory at de000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (32-bit, prefetchable) [size=256M]
[virtual] Expansion ROM at dffe0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 3.0
Wow three hardware using the same IRQ. I thing that explains why i'm hearing
a very deep "swizzzz" sound when i maximize or minimize any window. The same
occurs when any visual plugins of Amarok or other applications work.
Graphics and sound cars are on the same IRQ.
Any way of changing this IRQ settings ?
On Feb 16, 2008 11:50 PM, Arda Eden <ardaeden(a)gmail.com> wrote:
My kernel version is 2.6.18.8-86 so it's not this
HELL thing. I'm glad.
I'll check for the IRQ and PCI then.
Thanks.
On Feb 16, 2008 11:42 PM, James Stone <jamesmstone(a)gmail.com> wrote:
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
On Sat, Feb 16, 2008 at 04:30:36PM -0500, Paul
Davis wrote:
--
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
On Sat, 2008-02-16 at 21:27 +0000, James Stone wrote:
is
am not sure about your distro but you may also
be affected by
"nptl hell", in which case I would suggest changing distro:
NPTL Hell affects only 2.4 kernels or very very early 2.6 kernels. It not and has never been an issue in distributions
using kernels from
the
last 2 years or so.
Thanks for the heads up.. This is clearly not an issue then..
The other thing I forgot to note was the pci latency settings. On
my system I have been using a script I got from this mailing
list (was it yours Paul?):
#!/bin/sh
case $1 in
start)
# "open up" the PCI bus by allowing fairly long bursts for
all devices, increasing performance
setpci -v -s "*:*.*" latency_timer=b0
# maximise latency for SBLive!, thus allowing
# more data per PCI transfer and minimizing xfuns
setpci -v -s 01:0a.0 latency_timer=ff
esac
exit 0
obviously requiring altering 01:0a.0 to match the results of lspci -v
for the
soundcard in your system.
James
17 Feb
17 Feb
6:12 a.m.
Wow three hardware using the same IRQ. I thing that
explains why i'm
hearing a very deep "swizzzz" sound when i maximize or minimize any
window. The same occurs when any visual plugins of Amarok or other
applications work. Graphics and sound cars are on the same IRQ.
Any way of changing this IRQ settings ?
The only way I know is by physically changing the PCI slots your
cards are plugged into.
James
6115
days inactive
6116
days old
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6 comments
3 participants
participants (3)
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James Stone -
Paul Davis