Bat Box 1: This invention was conceived and designed by Gordon Salisbury for exploring the sonic spectrum of ultrasound, of which bat radar pulses are a part. We used it to acquire sounds that later became a part of the "Sounds of Unseen Worlds" loop library and the "Sonic Painting" video. Ultrasound is a whole world of sound we cannot hear with our ears, but is very ubiquitous in nature.
