When different persons listen to different sound programs in one room, each person wants to hear -his- or -her- program and be subjected to a minimum of annoyance from the other programs. With this goal in mind, three methods were used: 1) Low frequencies: active control of sound (or noise), 2) Midfrequencies: beam focusing using a loudspeaker array, and 3) High frequencies: directional loudspeaker and passive absorption.

Authors: Druyvesteyn, W. F.; Garas, John
Affiliations: Philips Research Laboratories, Eindhoven, The Netherlands ; Technical University,Eindhoven, The Netherlands(See document for exact affiliation information.)
JAES Volume 45 Issue 9 pp. 685-701; September 1997
Publication Date: September 1, 1997 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=7843

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