Teachers' voicing and silence periods during continuous speech in classrooms with different reverberation times.
The relationship between reverberation times and the voicing and silence accumulations of continuous speech was quantified in 22 primary-school teachers. Teachers were divided into a high and a low reverberation time groups based on their classroom reverberation time (higher and lower than 0.90 s). Reverberation times higher than 0.90 s implicate higher voicing accumulations and higher accumulations of the silences typical of turn taking in dialogue. These results suggest that vocal load, which can lead to vocal fatigue, is influenced by classroom reverberation time. Therefore, it may be considered a risk factor for occupational voice users.
Voice Biomechanics and Acoustics Laboratory, Department of Communicative Sciences and Disorders, Michigan State University, East Lansing, Michigan 48824, USA.
Pasquale
P
Bottalico
Department of Energy, Politecnico di Torino, Torino, Italy pb@msu.edu, arianna.astolfi@polito.it, ejhunter@msu.edu.
Arianna
A
Astolfi
Voice Biomechanics and Acoustics Laboratory, Department of Communicative Sciences and Disorders, Michigan State University, East Lansing, Michigan 48824, USA.
Eric J
EJ
Hunter