Tests of loudspeakers intended for operation in a corner of a room cannot be performed satisfactorily in a conventional anechoic chamber. A new type of chamber has been devised. One corner is provided with a 4-vaned turnstile door rotatable on a vertical axis. With the door indexed in one of four positions, a trihedral corner is provided for testing of devices intended for use in a corner. With the door indexed in another position, a dihedral corner is provided in which special constructions may be devised. A third index position of the door provides a flat baffle. A fourth index position exposes the normal sound absorptive material, so the chamber is typically anechoic.

Authors: Hunter, James R.; Klipsch, Paul W.
Affiliation: Klipsch and Associates, Inc., Hope, AR
AES Convention: 67 (October 1980) Paper Number: 1679
Publication Date: October 1, 1980

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