Speech recognition by grades 1, 3 and 6 children in classrooms

J.S. Bradley, H. Sato

Abstract


The results of new acoustical measurements and speech recognition tests were discussed. Speech and noise levels were measured during a regular teaching activity and during the speech tests. The Word Intelligibility by Picture Identification (WIPI) test was used to measure speech recognition scores for varied signal-to-noise ratio (SNR). The results reveal the importance of better conditions, with low noise levels, for young students.

Keywords


Acoustic noise; Education; Impulse response; Loudspeakers; Microphones; Reverberation; Signal to noise ratio; Speech intelligibility; Students; Acoustical measurements; Classrooms; Room acoustics; Word intelligibility by picture identification (WIPI)

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