Audio plays at slow speed

[Michael Fox]

Binary package hint: pulseaudio

This occurs with the Karmic beta (previous alpha versions did it too), run on VirtualBox (3.0.6) on two core 2 duo Macintoshes (iMac, Mac mini). The audio affected includes the Ubuntu startup sound, YouTube audio, and playback of mp3 and mp4's on Rhythmbox. Sound is running at 50-90% normal speed. I have tried numerous suggested fixes including putting my username in the sound group, deleting the ~/.pulse folder, removing gstreamer pulse-audio and removing pulse-audio itself. I believe that pulseaudio is actually crashing because I keep getting crash reports, and pulse-audio isn't shown in my system monitor. The hardware reported in Sound Preferences is "internal Audio, 1 output, 1 input, Analogue stereo duplex. Changing the settings for this device has no effect on the slow audio; nor does changing the connector.

ProblemType: Bug
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: I82801AAICH [Intel 82801AA-ICH], device 0: Intel ICH [Intel 82801AA-ICH]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mfox 1317 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'I82801AAICH'/'Intel 82801AA-ICH with STAC9700,83,84 at irq 9'
   Mixer name : 'SigmaTel STAC9700,83,84'
   Components : 'AC97a:83847600'
   Controls : 34
   Simple ctrls : 24
CurrentDmesg: [ 21.572096] eth0: no IPv6 routers present
Date: Sat Oct 3 17:16:11 2009
DistroRelease: Ubuntu 9.10
Package: pulseaudio 1:0.9.18-0ubuntu3
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.38-generic
SourcePackage: pulseaudio
Uname: Linux 2.6.31-11-generic i686
XsessionErrors:
 (gnome-settings-daemon:1334): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:1334): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (nautilus:1387): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (polkit-gnome-authentication-agent-1:1426): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (gnome-panel:1386): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -3 and height 24

[efffourthirty (coreythom)]

I was also having a sound issue with Karmic as my host and Windows7 running in Virtualbox 3.0.4 and the newer version 3.0.10. My sound was choppy and slow. I confirmed that the problem is unique to Karmic because I connected to the same virtual machine from Jaunty - I have a multiboot machine.

I found that the symptoms go away when I run PulseAudio Volume Control (pavucontrol). See the discussion and my posting (efffourthirty) on the VirtualBox forum (http://forums.virtualbox.org/viewtopic.php?f=7&t=23982&start=15) for this issue.

Now that I run pavucontrol, the cpu usage for pulseaudio and pavucontrol have increased to use between 1-10% CPU - even at idle.

[Daniel T Chen (crimsun)]

Please reproduce this symptom when running the most current daily-live desktop Lucid image.

[Marco Segreto (msmarc)]

I've gotten this same problem on Ubuntu Maverick with Rhythmbox as a guest on VirtualBox. The distortion is just a time distortion, the songs are slightly slower to the point where the pitch has shifted down. It's barely noticable at first but becomes apparent with a song that you know.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 9.10 (karmic) reached end-of-life on April 30, 2011.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

Please upgrade to the latest version and re-test.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]