If you download the PDF file to your storage disc, there are
two small sound files to add, at the same level as the main file -
HERE and
HERE
The presentation opens at full screen, and the graphics are
optimised for 640 x 480 pixels - if have your screen set to a
resolution higher than that, you may find them a bit jagged... But
if you change the view to 100%, they'll display properly.
