There is no sound on Libre office impress running on Lubunti 13.04 on any PPS file.
However the presentations play perfectly well on Libre office Impress on Windows.
According to the people of Äsk Ubuntu"the problem seems with Libre Office.
I am not sure.
I have installed Lubuntu with Libre Office on 3 machines now and all the machines have the same problems.
These machines are as well Intel based as well as AMD based.
Please help