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Convention Paper

The Acoustic and Intelligibility Performance of Assitive Listening & Deaf Aid Loop (AFILS) Systems

Authors: Mapp, Peter

AES Convention 114 · Paper 5765 · March 2003

Abstract

Although the electronic performance of Inductive loop and other hard of hearing assitive audio systems is well covered by appropriate criteria and codes of practice, little or no attention appears to have been given to the acoustic performance and requirements of such systems. The paper reports the results of acoustic performance testing carried out on a number of HoH systems and components. In particular, the effects on the clarity and intelligibility of speech picked up by a system's microphones are discussed. The parameters such as microphone type, orientation, location & distance from a talker are all shown to have a significant effect on the resultant performance. The paper concludes by making recommendations for test procedures and design criteria targets for the acoustic & intelligibility performance of such systems.

Details

Published in
AES Convention 114
AES Convention
114
Paper number
5765
Publication date
March 6, 2003
Session subject
Room Acoustics and Sound Reinforcement
Affiliation
Peter Mapp Associates, Colchester UK (See document for exact affiliation information.)
Type
Convention Paper