A Roman potter inadvertently recorded his voice onto the vase he was making. Whilst spinning the vase on his wheel he applied a pin to its surface in order to make a decorative line. In so doing the noises in the room at the time were recorded onto the clay. A group of Belgian archaeologists have isolated these sounds and they are played for you here. More information at:

http://www.zalea.org/article.php3?id_article=496