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[vedavata <vedavrata@xxxxxxxxx>]

audacity (Audacity 2.1.2) hangs on 3-hour MP3-file with such messages (or maybe these messages is not connected to the hangups):
"""
ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
1: »0⋅1/1⋅1/1⋅1/1
1: »0⋅1/1⋅1/1⋅1/1
ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
1: »0⋅1/1⋅1/1⋅1/1
1: »0⋅1/1⋅1/1⋅1/1
ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
1: »0⋅1/1⋅1/1⋅1/1
1: »0⋅1/1⋅1/1⋅1/1
ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
"""

 audacity -v
(Audacity:7005): Gtk-WARNING **: gtk_disable_setlocale() must be called before gtk_init()

 uname -a
Linux Dell-XPS-L502X 4.8.0-51-generic #54~16.04.1-Ubuntu SMP Wed Apr 26 16:00:28 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

 lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.2 LTS
Release:	16.04
Codename:	xenial

Audacity 2.1.2
   Core Libraries 
libsoxr    (Sample rate conversion)        Enabled 
PortAudio  (Audio playback and recording)  v19 
wxWidgets  (Cross-platform GUI library)    3.0.2
    Build Information
Program build date:   Jan 29 2016
Commit Id:            No revision identifier was provided
Build type:           Release build
Installation Prefix:  /usr

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https://bugs.launchpad.net/bugs/1667520

Title:
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred

Status in audacity package in Ubuntu:
  Confirmed

Bug description:
  When recording to a new track in Audacity, occasionally this problem occurs.
  I hear a lot of noise and the record stops.

  The output is:
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  ALSA lib pcm.c:7963:(snd_pcm_recover) underrun occurred
  Expression 'err' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 3355
  Expression 'ContinuePoll( self, StreamDirection_In, &pollTimeout, &pollCapture )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 3881
  Expression 'PaAlsaStream_WaitForFrames( stream, &framesAvail, &xrun )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4253

  I'm using Ubuntu Studio 16.04 fresh install, regularly updated.
  Audacity 2.1.2

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