[Expired for pulseaudio (Ubuntu) because there has been no activity for
60 days.]
** Changed in: pulseaudio (Ubuntu)
Status: Incomplete => Expired
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** Changed in: pulseaudio (Ubuntu)
Status:
I've been trying to use the fix from comment #34 in 11.10 (Unity), this
far without success.
I copied firefox.desktop from /usr/share/applications to
~/.local/share/spplications and modified it there so that it executes
/usr/local/bin/firefox
For the rest I followed the steps from comment #34.
Maverick, current updates:
vavoom chaingun test is still miserably failed by pulseaudio.
zynaddubfx launched with padsp produces something that remotely resembles cough.
latency is a bit smaller, but still clearly audible, around ~0.15s
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Is there some sort of configuration file I can add that export command
to, so Firefox always starts with that setting? Or should I just create
an executable script?
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What you can do is create a script that sets the variable, then launches
Firefox.
Just run 'sudo gedit /usr/local/bin/firefox'. Then paste the following
into the file and save:
#!/bin/bash
export PULSE_LATENCY_MSEC=20
exec /usr/bin/firefox $@
Then run 'sudo chmod a+x /usr/local/bin/firefox'.
Ahh ok, I thought that variable would be applied system-wide, so I started
Firefox from the top panel.
Running Firefox from the same terminal as the export command solves the sound
issue; thanks for the tip!
Two more questions:
1) Why the value 20?
2) Wouldn't this be a sensible setting to
@Jordy The value that best works for each configuration really depends
on the audio hardware, so it's very specific to a class of
controllers/codecs. Certainly we can look at modifying it, but you
should probably file a new bug against pulse and attach a verbose log
I ran that export command from a terminal before starting Firefox, but
it didn't seem to have any effect. I tried the game I mentioned in
message #25.
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Did you start Firefox from that same terminal (just type 'firefox')?
Otherwise the variable won't actually be set for Firefox.
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Flash games still suffer from sound latency in Ubuntu 10.10 x86. In all
other cases, this issue seems to have been fixed.
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The sound latency in Flash can be worked around by running
export PULSE_LATENCY_MSEC=20
before starting Firefox.
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** Changed in: pulseaudio (Ubuntu)
Status: Fix Released = Fix Committed
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I still experience sound latency in Ubuntu 10.04 x64.
I must say though that lag seems to have disappeared for quite a number of
games.
But flash games remain a problem.
Take http://www.onlinegamesquad.com/?1085-1 for instance. It's quite noticeable
when playing this game.
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Addition: as far as sound latency is concerned, the situation seems to
be equal to that in Karmic.
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Fixed in 10.04
** Changed in: pulseaudio (Ubuntu)
Status: Fix Committed = Fix Released
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marked as fix committed on 2009-04-23...
Any news?
On karmic with current updates latency is still high.
Erratic sound timing is also present: Fast repetitive sounds in some apps are
being played back with uneven intervals. Take for example chaingun in doom
(vavoom port). A huge difference if
In karmic with latest updates I still have random 100-400ms latency:
171833 μs (= buffer: 11 μs + sink: 61833 μs)
271866 μs (= buffer: 182471 μs + sink: 89395 μs)
477530 μs (= buffer: 391519 μs + sink: 89395 μs)
all with single app.
sink latency randomly switches from 40 to 90 ms.
Is it
In karmic with latest updates I still have random 100-400ms latency:
171833 μs (= buffer: 11 μs + sink: 61833 μs)
271866 μs (= buffer: 182471 μs + sink: 89395 μs)
477530 μs (= buffer: 391519 μs + sink: 89395 μs)
all with single app.
sink latency randomly switches from 40 to 90 ms.
Is it
Besides it,even in Karmic, such programs as stardict+espeak are
swallowing sound.
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I experience the same behaviour in Karmic. Flash games and games running
locally (like smc) are affected by a ~ .5 seconds delay. Any progress on
this?
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The pcm_lib mid-layer changes address both symptoms.
I still experience sound latency in Jaunty (x86). Do these changes still have
to be applied to Ubuntu? If so, when is this going to happen?
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I see that this report is marked as Incomplete, it appears that this was
done when asking if the problem still occurs in Jaunty. As myself and
others have confirmed it does, I'm changing the status to Confirmed.
** Changed in: pulseaudio (Ubuntu)
Status: Incomplete = Confirmed
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Frequent latency here as well with fully updated Jaunty.
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upstream git does not have this symptom
** Changed in: pulseaudio (Ubuntu)
Status: Confirmed = Fix Committed
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There's no real need for an SRU (jaunty) for this symptom; I'm only
using it to track the related bug in linux (bug 345627).
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I think you may have posted to the wrong bug report. There's no mention
of an SRU in this report and the bug you link to is for crackling not
latency/lag.
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The pcm_lib mid-layer changes address both symptoms.
On Apr 23, 2009 3:55 PM, Jamin W. Collins jcoll...@asgardsrealm.net
wrote:
I think you may have posted to the wrong bug report. There's no mention
of an SRU in this report and the bug you link to is for crackling not
latency/lag.
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...no change in alpha 6
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on jaunty alpha 5 latency is still very high: 135-355ms for alsa apps.
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Jordy, maybe because they're binaries? :S
But games are binaries too, as well as for example Totem, VLC etc., aren't
they? To be honest I don't really understand what you're trying to say here.
If those games you are trying to play use SDL, you may want to consider
installing libsdl1.2debian
But games are binaries too, as well as for example Totem, VLC etc.,
aren't they? To be honest I don't really understand what you're trying
to say here.
Well, I remember on Windows *shudder* that older (or newer) binaries
weren't affected by other problems I'd have. Just a wild amateurish
guess
You can see which libs it links against, although that's not foolproof either.
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On jaunty Alpha 4 there is still very large delay with pulseaudio: some
0.2-0.5 seconds
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The strange thing is not all applications seem to be affected by this.
Media players like Totem, Media Player, VLC etc work fine. It's mostly
games that experience sound latency. World of Goo is an exception to the
rule however. I installed this game yesterday (I'm still running 8.10),
and I
Jordy, maybe because they're binaries? :S
I've also noticed that Audacity hasn't been working since I've
experienced this problem. (It's refusing to play sounds, but I can still
export and import sounds without problems)
Hope this problem is fixed soon :-(
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If those games you are trying to play use SDL, you may want to consider
installing libsdl1.2debian-pulseaudio, which will use pulseaudio as an
output directly, instead of going via alsa then through pulseaudio,
which could indeed introduce latency.
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I'm not sure, I have Ubuntu 8.10.
The delay issue disappeared after I logged in (was still messed up when
I first logged in) and out and in after rebooting my computer. However
in my pulseaudio process the Waiting Channel says futex_wait, any
idea what that is?
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Is this symptom still reproducible in *current* 9.04?
** Changed in: pulseaudio (Ubuntu)
Status: New = Incomplete
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