A term widely used in artifical reverb systems to describe a reverberant space with a specific sonic character. Typically, a chamber reverb is generous and dense, but usually with greater focus and clarity, and less duration, than a Hall reverb. Histortically, a physical reverb chamber was a moderate sized room with tiled surfaces and often glazed pipes stood on end to increase the reverb density, in which one or more loudspeakers reproduced sounds which were picked up by one or more distant microphones.

The noise floor defines the amplitude of the sum of all noise sources and other unwanted signals within a system. This could be the ambient acoustic noise in a room, or the electrical noise in a recording system or other audio equipment. In  a high quality audio system the noise floor is typically around -100dBu or better. The total dynamic range capability of a system is normally defined as the difference in amplitude between the noise floor and the highest signal that can be passed without distortion.