Created attachment 149225
GStreamer log message ( turn on with export GST_DEBUG=7 ).

I tried to look into this issue. Despite the .wav selected for the
effect doesn't work while the slideshow is running, you can hear the
sound when you click the play button in the custom effect dialog.

export GST_DEBUG=7 and logging the messages of those two situations, the
slideshow has following error messages:

riff riff-read.c:516:gst_riff_parse_strf_auds:<wavparse1>  channels    1^M
riff riff-read.c:517:gst_riff_parse_strf_auds:<wavparse1>  rate        11025^M
riff riff-read.c:518:gst_riff_parse_strf_auds:<wavparse1>  av_bps      22050^M
riff riff-read.c:519:gst_riff_parse_strf_auds:<wavparse1>  blockalign  2^M
riff riff-read.c:520:gst_riff_parse_strf_auds:<wavparse1>  bits/sample 16^M
basesrc gstbasesrc.c:2445:gst_base_src_update_length:<source> processing at or 
past EOS^M
wavparse gstwavparse.c:1789:gst_wavparse_stream_headers:<wavparse1> error: 
Couldn't read in header -2 (flushing)^M
GST_ERROR_SYSTEM 
gstelement.c:2145:gst_element_message_full_with_details:<wavparse1> posting 
message: 無法將資料串流解多工分接。^M
GST_ERROR_SYSTEM 
gstelement.c:2172:gst_element_message_full_with_details:<wavparse1> posted 
error message: 無法將資料串流解多工分接。^M
wavparse gstwavparse.c:2293:gst_wavparse_loop:<wavparse1> error: Internal data 
stream error.^M
wavparse gstwavparse.c:2293:gst_wavparse_loop:<wavparse1> error: streaming 
stopped, reason error (-5)^M
GST_ERROR_SYSTEM 
gstelement.c:2145:gst_element_message_full_with_details:<wavparse1> posting 
message: Internal data stream error


( note that gst_element_message_full_with_details said it can't demultiplex the 
stream, in Chinese. The message doesn't matter. )

I'm still trying to figure out what's going on there.

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https://bugs.launchpad.net/bugs/823155

Title:
  [Upstream] Impress Custom Animation Sound Effect not audible in Slide
  Show

Status in LibreOffice:
  Confirmed
Status in OpenOffice:
  Unknown
Status in libreoffice package in Ubuntu:
  Triaged
Status in openoffice.org package in Ubuntu:
  Won't Fix

Bug description:
  1)  lsb_release -rd
  Description:  Ubuntu 12.04 LTS
  Release:      12.04

  2) apt-cache policy libreoffice-impress
  libreoffice-impress:
    Installed: 1:3.5.2-2ubuntu1
    Candidate: 1:3.5.2-2ubuntu1
    Version table:
   *** 1:3.5.2-2ubuntu1 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
          100 /var/lib/dpkg/status

  3) What is expected to happen in a new Impress document via the
  Terminal:

  loimpress --nologo

  New Impress file -> click the rectangle containing "Click to add text"
  -> Under Tasks Custom Animation -> button Add... -> Entrance tab
  highlight Random Effects -> OK button -> right of Property ... button
  -> Effect tab -> change Sound dropdown apert -> OK button -> Slide
  Show and it plays the apert sound.

  4) What happens instead is no sound is played during the slide show.

  Original Reporter Comments: I am using Ubuntu 11.04 Natty. I have
  tested this in Ubuntu 10.10 with OpenOffice.org presentation
  (Impress), same problem too. All in all I have tried this on 3
  different computers. 2 on 11.04 and 1 on 10.10

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: libreoffice 1:3.3.2-1ubuntu5
  ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
  Uname: Linux 2.6.38-10-generic i686
  Architecture: i386
  Date: Tue Aug  9 16:59:45 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: libreoffice
  UpgradeStatus: No upgrade log present (probably fresh install)

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