If I follow the steps from comment 5, sound doesn't play in slideshow either on Linux or Windows.
Opening the file from comment 0, Linux doesn't play the sound, a little click might be heard. Changing the sound doesn't help. Windows plays it, if I change it to be some other sound. Win 7 64-bit Version: 4.4.0.0.alpha2+ Build ID: b021b5983c62e266b82d9f0c5c6d8d8900553827 TinderBox: Win-x86@39, Branch:master, Time: 2014-11-12_01:10:08 Ubuntu 14.10 64-bit Version: 4.4.0.0.alpha2+ Build ID: 5bff4b016c4b44f4123e0e6a4fd4c0c4dc0cfa2d TinderBox: Linux-rpm_deb-x86_64@46-TDF-dbg, Branch:master, Time: 2014-11-13_00:14:29 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/823155 Title: [Upstream] Impress Custom Animation Sound Effect not audible in Slide Show To manage notifications about this bug go to: https://bugs.launchpad.net/df-libreoffice/+bug/823155/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs