Since no feasible solution existed for a loudspeaker system in a departure hall of an airport that could meet the demands of speech intelligibility and maintenance, an electronically controlled sound column was designed with exceptional properties regarding aiming, lobing, and vertical dispersion. With this column an almost constant direct-to-reverberant ratio is possible over a range from almost zero to more than 30 meters.
(See document for exact affiliation information.)
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.
