Comment 6 for bug 1130920

I was able to reproduce it on a different machine with Ubuntu 12.04

First, I tried to install openshot from repositories.
It was openshot 1.4.0-1ubuntu1, and mlt:
$ dpkg -l |grep mlt
ii libmlt++3 0.7.6+git20120204-2 MLT multimedia framework C++ wrapper (runtime)
ii libmlt-data 0.7.6+git20120204-2 multimedia framework (data)
ii libmlt4 0.7.6+git20120204-2 multimedia framework (runtime)
ii python-mlt3 0.7.6+git20120204-2 multimedia framework (python bindings)

Then added MLT and openshot PPAs, now versions are:
$ dpkg -l |grep mlt
ii libmlt++3 0.8.8-0ubuntu0~sunab~precise1 MLT multimedia framework C++ wrapper (runtime)
ii libmlt-data 0.8.8-0ubuntu0~sunab~precise1 multimedia framework (data)
rc libmlt4 0.7.6+git20120204-2 multimedia framework (runtime)
ii libmlt5 0.8.8-0ubuntu0~sunab~precise1 multimedia framework (runtime)
ii python-mlt5 0.8.8-0ubuntu0~sunab~precise1 multimedia framework (python bindings)
$ dpkg -l |grep openshot
ii openshot 1.4.3-1 Create and edit videos and movies

And bug exists! I hear audio glitches again! What I did I just created a new project, then added my AVI file, cut it into 2 pieces, and then put second piece onto the second track and slightly overlapped 2 tracks. Then clicked Play - and audio glitches were here!

If it still doesn't help, will it help if I try to create a VirtualBox virtual machine, reproduce the issue, take a snapshot and place it somewhere?