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Convention Paper

Optimizing Teaching Room Acoustics: Investigating the Exclusive Use of a Distributed Electroacoustic Installation to Improve the Speech Intelligibility

Authors: Hatziantoniou, Panagiotis; Tatlas, Nicolas; Potirakis, Stelios M.

AES Convention 134 · Paper 8871 · May 2013

Abstract

The possibility to improve speech intelligibility in classrooms of inadequate acoustic design, exclusively by using an electroacoustic installation is investigated in this paper. Measurement results derived from an overall six-loudspeaker arrangement response in different locations inside a test classroom are compared to those derived from a one-loudspeaker electroacoustic response in the speaker’s location. Preliminary results indicate that well-established parameters such as C-50 and D-50 automatically calculated, show no significant improvement. Extended investigation of the responses as well as other criteria such as direct to reverb ratios (DRR) shown that there is noteworthy enhancement in addition to the subjective acoustic perception. Moreover, DRR is shown to further improve from the employment of a room correction technique based on smoothed responses.

Details

Published in
AES Convention 134
AES Convention
134
Paper number
8871
Publication date
May 6, 2013
Session subject
Perception and Education
Affiliation
University of Patras, Patras, Greece; Technological Educational Institute of Piraeus, Athens, Greece (See document for exact affiliation information.)
Type
Convention Paper