[choice by Jérôme] This is a 15′ recording of forest soundscape made by Gordon Hempton at Olympic National Park, close to Seattle, USA. This recording is part of his project « One square inch of silence ». Gordon Hempton defined a small place where silence, that is the absence of human-based noise, should be absent. This is a wonderful recording. I particularly enjoy the woodpecker drumming which resonates returning some information about the size of the forest a bit like when we test the acoustics of a room by clapping hands and hearing the echoes of the walls.