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[The Bright Side <1246092@xxxxxxxxxxxxxxxxxx>]

The workaround in #14 used to work for me before 15.04 and before buying
my new PC (both of which coincided). Now, this bug is here to stay, and
none of the workarounds above fix it.

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https://bugs.launchpad.net/bugs/1246092

Title:
  Ubuntu 13.10 upgrade: audacity sound is trashed, program highly
  unstable

Status in audacity package in Ubuntu:
  Confirmed

Bug description:
  On playback I get a rough static that crackles corresponding to the
  waveform intensity; on occasion the sound may start as noise and then
  flip into proper sound output, but when paused the subsequent playback
  will produce static and pausing that will crash the program.  I have
  tried Playback set to Alsa/pulse and Alsa/default, both give this
  behaviour.  When the selected sample is played as noise, the scrolling
  cursor works, but appears to be scrolling by much faster than real-
  time.

  also, when the playback works, the scrolling cursor behaves very
  strangely: the thin line may not move at all, or a segment of it may
  stay put while another part of it scrolls along with the sound.

  This is a fresh upgrade to 13.10 on a 64-bit Ubuntu machine, a
  ZaReason Strata laptop with nvidia sound (according to alsa).

  Audacity worked fine on 13.04, occasional lock ups, but Audacity is
  prone to occasional lock-ups, and the sound was fine.  Audio works
  fine with other audio apps including youtubes, totem, vlc and sushi.
  If I highlight a segment of sound in Audacity and export to disk as
  mp3, sushi will play the resulting mp3 fine.  The problem seems
  peculiar to Audacity playback.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: audacity 2.0.3-1
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaCards:
   0 [PCH            ]: HDA-Intel - HDA Intel PCH
                         HDA Intel PCH at 0xc5400000 irq 50
    1 [NVidia         ]: HDA-Intel - HDA NVidia
                         HDA NVidia at 0xc3000000 irq 17
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: amd64
  Date: Tue Oct 29 17:24:18 2013
  InstallationDate: Installed on 2012-04-27 (550 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_CA:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: audacity
  UpgradeStatus: Upgraded to saucy on 2013-10-22 (6 days ago)

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