Bad sound in F12 with SB live soundcard (emu10k1)

[Joachim Backes]

Having a SB Live soundcard (PCI) on my box, driven by emu10k1. But when
using F12 Beta, the sound is totally blurred and overdriven. I'm running
pulseaudio.

Remark: no such awful sound in F11.

Is there a possibility (graphical tool e.g.) to get rid from this behaviour?

lspci:

01:09.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 0a)
01:09.1 Input device controller: Creative Labs SB Live! Game Port (rev 0a)


All comments are welcome

Kind regards

Joachim Backes <joachim.backes@...>

http://www.rhrk.uni-kl.de/~backes




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[Kamil Paral]

----- "Joachim Backes" <joachim.backes@...> wrote:

> Having a SB Live soundcard (PCI) on my box, driven by emu10k1. But
> when
> using F12 Beta, the sound is totally blurred and overdriven. I'm
> running
> pulseaudio.
>
> Remark: no such awful sound in F11.

Long in the past I had similar problems with my SoundBlaster when
a distribution enabled digital output by default and I was using
analog output. Then the sound was extremely loud and noisy. A manual
change in sound properties was required. Can it be something like
that?

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[Joachim Backes]

On 11/04/2009 02:31 PM, Kamil Paral wrote:

> ----- "Joachim Backes"<joachim.backes@...>  wrote:
>
>> Having a SB Live soundcard (PCI) on my box, driven by emu10k1. But
>> when
>> using F12 Beta, the sound is totally blurred and overdriven. I'm
>> running
>> pulseaudio.
>>
>> Remark: no such awful sound in F11.
>
> Long in the past I had similar problems with my SoundBlaster when
> a distribution enabled digital output by default and I was using
> analog output. Then the sound was extremely loud and noisy. A manual
> change in sound properties was required. Can it be something like
> that?
>

Can be, but reducing the output level has no effect: the sound remains
overdriven, even after reducing the sound volume with the Sb Live applet
in the gnome panel.

Which tool for managing the "sound properties" do you mean?

Regards

Joachim Backes <joachim.backes@...>

http://www.rhrk.uni-kl.de/~backes




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[David Timms]

On 11/05/2009 12:41 AM, Joachim Backes wrote:
> On 11/04/2009 02:31 PM, Kamil Paral wrote:
> Which tool for managing the "sound properties" do you mean?
Sound Preferences by right clicking the speaker icon.

Note I just experienced this on an older nvidia chipset box.
- put your level down to 1 percent
- use the cursor keys to move the level up a step at a time
Was there at least one step in every 4-6 where the audio was not distorted ?

If so, maybe bug is familiar:
https://bugzilla.redhat.com/show_bug.cgi?id=532959

I guessed at ps to start with, but no idea really.

DaveT.

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[Kamil Paral]

----- "Joachim Backes" <joachim.backes@...> wrote:
>
> Can be, but reducing the output level has no effect: the sound remains
>
> overdriven, even after reducing the sound volume with the Sb Live
> applet
> in the gnome panel.
>
> Which tool for managing the "sound properties" do you mean?
>

Before pulseudio came in there was a checkbox "digital output" in gnome
volume properties. Now I guess it should be accessible in the Hardware
tab and selecting correct profile for your device.

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[Michael Schwendt]

On Wed, 04 Nov 2009 14:09:35 +0100, Joachim wrote:

> Having a SB Live soundcard (PCI) on my box, driven by emu10k1. But when
> using F12 Beta, the sound is totally blurred and overdriven. I'm running
> pulseaudio.
>
> Remark: no such awful sound in F11.

What CPU is this with? (cat /proc/cpuinfo)
One recent release of PulseAudio in F12/Rawhide is broken in its MMX based
channel mixing/multiplexing code. (bz 530049)

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[Bruno Wolff III]

On Wed, Nov 04, 2009 at 16:17:32 +0100,
  Michael Schwendt <mschwendt@...> wrote:
>
> What CPU is this with? (cat /proc/cpuinfo)
> One recent release of PulseAudio in F12/Rawhide is broken in its MMX based
> channel mixing/multiplexing code. (bz 530049)

Thanks for reporting that one. I had been seeing that two on one machine
and hadn't opened a bug yet, since I wasn't sure about what was causing
it to be a problem on one machine.

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[Joachim Backes]

On 11/04/2009 04:17 PM, Michael Schwendt wrote:
> On Wed, 04 Nov 2009 14:09:35 +0100, Joachim wrote:
>
>> Having a SB Live soundcard (PCI) on my box, driven by emu10k1. But when
>> using F12 Beta, the sound is totally blurred and overdriven. I'm running
>> pulseaudio.
>>
>> Remark: no such awful sound in F11.
>
> What CPU is this with? (cat /proc/cpuinfo)

AMD Athlon(tm) XP 3000+

Chipset: NVIDIA nForce2

Regards

Joachim Backes

> One recent release of PulseAudio in F12/Rawhide is broken in its MMX based
> channel mixing/multiplexing code. (bz 530049)
>


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Joachim Backes <joachim.backes@...>

http://www.rhrk.uni-kl.de/~backes




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[Michael Schwendt]

On Wed, 04 Nov 2009 17:06:37 +0100, Joachim wrote:

> On 11/04/2009 04:17 PM, Michael Schwendt wrote:
> > On Wed, 04 Nov 2009 14:09:35 +0100, Joachim wrote:
> >
> >> Having a SB Live soundcard (PCI) on my box, driven by emu10k1. But when
> >> using F12 Beta, the sound is totally blurred and overdriven. I'm running
> >> pulseaudio.
> >>
> >> Remark: no such awful sound in F11.
> >
> > What CPU is this with? (cat /proc/cpuinfo)
>
> AMD Athlon(tm) XP 3000+

That's not as detailed as "cat /proc/cpuinfo", but this cpu can do MMX
and SSE at least, afaik (albeit not SSE2).

Means you could try the suggestion from bz 530049 and run the
PA daemon with a PULSE_NO_SIMD=1 environment variable (in order to
disable the MMX+SSE optimisations). If that doesn't help, your problem
is a different one.

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[Joachim Backes]

On 11/04/2009 05:25 PM, Michael Schwendt wrote:

> On Wed, 04 Nov 2009 17:06:37 +0100, Joachim wrote:
>
>> On 11/04/2009 04:17 PM, Michael Schwendt wrote:
>>> On Wed, 04 Nov 2009 14:09:35 +0100, Joachim wrote:
>>>
>>>> Having a SB Live soundcard (PCI) on my box, driven by emu10k1. But when
>>>> using F12 Beta, the sound is totally blurred and overdriven. I'm running
>>>> pulseaudio.
>>>>
>>>> Remark: no such awful sound in F11.
>>>
>>> What CPU is this with? (cat /proc/cpuinfo)
>>
>> AMD Athlon(tm) XP 3000+
>
> That's not as detailed as "cat /proc/cpuinfo", but this cpu can do MMX
> and SSE at least, afaik (albeit not SSE2).
>
> Means you could try the suggestion from bz 530049 and run the
> PA daemon with a PULSE_NO_SIMD=1 environment variable (in order to
> disable the MMX+SSE optimisations). If that doesn't help, your problem
> is a different one.

Michael, thank you for your advice which was very helpful. Now getting
clean sound as in F11.

>


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Joachim Backes <joachim.backes@...>

http://www.rhrk.uni-kl.de/~backes




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[David Timms]

On 11/05/2009 03:25 AM, Michael Schwendt wrote:
> That's not as detailed as "cat /proc/cpuinfo", but this cpu can do MMX
> and SSE at least, afaik (albeit not SSE2).
>
> Means you could try the suggestion from bz 530049 and run the
> PA daemon with a PULSE_NO_SIMD=1 environment variable (in order to
> disable the MMX+SSE optimisations). If that doesn't help, your problem
> is a different one.
Are these CPUs so old that a very noticeable problem like this would not
be an F12 release blocker ?

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[Adam Williamson-3]

On Thu, 2009-11-05 at 05:48 +1100, David Timms wrote:
> On 11/05/2009 03:25 AM, Michael Schwendt wrote:
> > That's not as detailed as "cat /proc/cpuinfo", but this cpu can do MMX
> > and SSE at least, afaik (albeit not SSE2).
> >
> > Means you could try the suggestion from bz 530049 and run the
> > PA daemon with a PULSE_NO_SIMD=1 environment variable (in order to
> > disable the MMX+SSE optimisations). If that doesn't help, your problem
> > is a different one.

> Are these CPUs so old that a very noticeable problem like this would not
> be an F12 release blocker ?

sound issues have a very high barrier to being release blockers, because
they can be fixed well with an update. issues that affect the critical
path stuff (graphics, installer, network) have a lower barrier because
fixing them with updates is much less optimal.

--
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Fedora Talk: adamwill AT fedoraproject DOT org
http://www.happyassassin.net

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[David Timms]

On 11/05/2009 05:55 AM, Adam Williamson wrote:
> On Thu, 2009-11-05 at 05:48 +1100, David Timms wrote:
>> On 11/05/2009 03:25 AM, Michael Schwendt wrote:
> sound issues have a very high barrier to being release blockers, because
> they can be fixed well with an update. issues that affect the critical
> path stuff (graphics, installer, network) have a lower barrier because
> fixing them with updates is much less optimal.
OK, I get that... but let's say your a reviewer... you are going to
write exactly what the release provides, not after post release updates.

Good thing that part of the problem is fixed for non SSE3 CPUs, and they
are more likely to have a newer CPU for their testing...

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[Adam Williamson-3]

On Fri, 2009-11-06 at 21:34 +1100, David Timms wrote:

> On 11/05/2009 05:55 AM, Adam Williamson wrote:
> > On Thu, 2009-11-05 at 05:48 +1100, David Timms wrote:
> >> On 11/05/2009 03:25 AM, Michael Schwendt wrote:
> > sound issues have a very high barrier to being release blockers, because
> > they can be fixed well with an update. issues that affect the critical
> > path stuff (graphics, installer, network) have a lower barrier because
> > fixing them with updates is much less optimal.
> OK, I get that... but let's say your a reviewer... you are going to
> write exactly what the release provides, not after post release updates.
>
> Good thing that part of the problem is fixed for non SSE3 CPUs, and they
> are more likely to have a newer CPU for their testing...

Yeah, I understand and mostly agree, and in an ideal world I'd like to
take issues like this as blockers. For right now, though, it's not
practical, it was enough of a nightmare getting most of the X blockers
fixed :)

If F13 goes well we might be able to get things like this addressed as
part of the blocker process there.

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Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Fedora Talk: adamwill AT fedoraproject DOT org
http://www.happyassassin.net

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