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[Danny Werner <1103018@xxxxxxxxxxxxxxxxxx>]

Shortly after the bisection (june 2013) I had no problems after an upgrade anymore. The original filer (Aaron) says it is currently fixed. I am sorry I can´ t tell when and were exactly it was fixed for us but it most defenitely is. If someone else still has the robotic (ring modulated and increasingly delayed) sound with an USB soundcard, please be very specific, do not just reopen the bug.
Regards,
                                  Danny

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https://bugs.launchpad.net/bugs/1103018

Title:
  line6usb - POD Studio UX2 Playback problem. Very robotic and slightly
  slower than usual

Status in linux package in Ubuntu:
  Fix Released

Bug description:
  - Bug currently fixed -

  Using the POD Studio UX2 and Ubuntu 13.04 with the later releases of
  the 3.8.0 linux kernel the audio sounds very robotic and is slightly
  slower than usual. If I remember correctly I was able to get the sound
  back to normal on a slightly earlier release of the 3.8.0 linux
  kernel, but i have reinstalled Ubuntu 13.04 since. The problem occurs
  with everything that is played, so it is not an issue with particular
  applications.  My speakers are connected in stereo through the 2
  analogue outs at the back of the device. I have never had this issue
  on previous releases of Ubuntu. Playing music with this issue makes
  the music difficult and overall pointless to listen to.

  I have even disabled my onboard sound to see if that may be the
  problem, but the issue still occurs. I believe it is a sound driver
  issue relating to the later kernel releases. I hope the issue can be
  resolved. Thank you.

  UPDATE: The issue also affects the Line6 Toneport GX according to a
  user that commented on my youtube video, also another user has
  commented on my video saying that they have the same issue with their
  UX2 device. This shows that the issue is more than my own. It also
  shows that it affects other Line6 devices. I really hope this issue
  can be resolved before the next major kernel release at the least.
  Thank you again.

  Here's a YouTube clip of the problem
  http://youtu.be/mzmESXZ_R3g

  Bugzilla Upstream Bug Report
  https://bugzilla.kernel.org/show_bug.cgi?id=53801

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu3
  ProcVersionSignature: Ubuntu 3.8.0-1.5-generic 3.8.0-rc4
  Uname: Linux 3.8.0-1-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.8-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  aaron      1793 F.... pulseaudio
   /dev/snd/controlC1:  aaron      1793 F.... pulseaudio
  Date: Tue Jan 22 14:24:06 2013
  InstallationDate: Installed on 2013-01-19 (2 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130118)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PODStudioUX2 failed
  Symptom_Card: UX2 - POD Studio UX2
  Symptom_Type: None of the above
  Title: [line6usb - POD Studio UX2, playback] Playback problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/27/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2103
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5QC
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 2.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2103:bd04/27/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5QC:rvrRev2.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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