"If a tree falls in a forest and no one is around to hear it, does it make a sound?", so goes a famous philosophical poser.
But with this king-size wooden loudspeaker in a forest near Pahni village, southern Estonia, that question becomes a moot point.
The large-scale acoustic installation built by interior architecture students amplifies the sounds of the woods.
The loudspeaker is so sturdy that it can easily accommodate two of the students.