Copyright © American Speech-Language-Hearing Association From: The Effect of Room Acoustics and Sound-Field Amplification on Word Recognition Performance in Young Adult Listeners in Suboptimal Listening Conditions Am J Audiol. 2008;17(1):50-59. doi:10.1044/1059-0889(2008/006) Legend: Schematic of the classroom configuration in the poor acoustic classroom. Circles in bold represent the placement of the ceiling speakers. Date of download: 10/30/2017 Copyright © American Speech-Language-Hearing Association