I tried the latency set to 30 and I get sound and no lock-ups, but the
sound is clipped on playback (generated mp3s are fine)

On 5/1/14, Robert Showalter <robert.a.showal...@gmail.com> wrote:
> Reflecting previous comment, same symptom. Interestingly however, it
> works with the value down to PULSE_LATENCY_MSEC=1 for me. But not
> supplying this, garbled sound with tendency to freeze.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> 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)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/audacity/+bug/1246092/+subscriptions
>


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

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

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https://bugs.launchpad.net/ubuntu/+source/audacity/+bug/1246092/+subscriptions

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