Combined effect of noise and room acoustics on vocal effort in simulated classrooms.
This work investigated the relationships between room acoustics, background noise level, and vocal effort of a speaker in simulated classrooms of various volumes. Under simulated acoustic environments, talkers adjusted their vocal effort linearly with the voice support, i.e., the degree of amplification offered by the room to the voice of a speaker, at his own ears. The slope of this relationship, called the room effect, of -0.24 dB/dB was significant only in the case of the highest noise levels of 62 dB. The vocal comfort for the speaker, however, was found to be more closely related to noise annoyance than to room reverberance.
Department of Energy, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy marcella.cipriano@alice.it, arianna.astolfi@polito.it.
Marcella
M
Cipriano
Department of Energy, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy marcella.cipriano@alice.it, arianna.astolfi@polito.it.
Arianna
A
Astolfi
ESAT-STADIUS, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium david.pelegringarcia@kuleuven.be.
David
D
Pelegrín-García