Gobo is a sound recording term for a movable acoustic isolation panel.
In typical use, a recording engineer might put a gobo between two musicians to increase the isolation of their microphones from each other.
Gobo panels control the acoustical properties of a room by absorbing and diffusing sound waves.
Gobo panels are typically constructed to accommodate portability and storage, an advantage over more permanent acoustical room treatments.
A gobo typically consists of a wooden panel covered with foam, carpeting or other materials with sound damping properties.