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[Launchpad Bug Tracker <1513273@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: alsa-driver (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1513273

Title:
  [XPS13 9333, Realtek ALC3661, Speaker, Internal] Sound is distorted

Status in alsa-driver package in Ubuntu:
  Expired

Bug description:
  The distorted sound only occurs when using MuseScore 2.0.2 to play
  music through the speakers. The sound initially appears distorted and
  crackly. Using the Sound app to test the speakers, the normal test
  signal is distorted and crackly, even though the tests sound normal
  before the MuseScore app is launched. This distortion persists for an
  indeterminate period of time, sometimes a few seconds, sometime
  several minutes. Then, all of a sudden, the sound quality returns to
  normal and the test signals sound normal without distortion.

  This seems to occur every time MuseScore is started, even though the
  sound quality when tested using the Sound app or playing sound from
  the Videos and Rhythmbox Music Player before MuseScore is started is
  normal and distortion-free.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   david      1495 F...m pulseaudio
   /dev/snd/controlC1:  david      1495 F.... pulseaudio
   /dev/snd/controlC0:  david      1495 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Nov  5 00:17:09 2015
  InstallationDate: Installed on 2015-07-23 (104 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Symptom_PulsePlaybackTest: PulseAudio playback test successful
  Symptom_Type: Digital clip or distortion, or "overdriven" sound
  Title: [XPS13 9333, Realtek ALC3661, Speaker, Internal] Sound is distorted
  UpgradeStatus: Upgraded to wily on 2015-10-22 (13 days ago)
  dmi.bios.date: 09/11/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 0D13CR
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA05:bd09/11/2014:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0D13CR:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.

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