2008
DOI: 10.1016/j.apacoust.2007.08.008
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Speech related acoustical parameters in classrooms and their relationships

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Cited by 8 publications
(5 citation statements)
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“…For the TSC velodrome, RT (500Hz-1000Hz) was 2.78-3.38 s, EDT (500Hz-1000Hz) was 2.22-3.63 s, and D50 (500Hz-4000Hz) was 0.3-0.62. The speech intelligibility in the stadium with a smaller volume decreased with the increase in RT or EDT, which was also found in ordinary spaces [5,27]. However, in the velodrome, for a relatively low SNR, this phenomenon was observed only when RT was less than 3 s; when RT was more than 3 s, the speech intelligibility increased with the increase in RT.…”
Section: Effect Of the Room-acoustic Parameterssupporting
confidence: 63%
See 1 more Smart Citation
“…For the TSC velodrome, RT (500Hz-1000Hz) was 2.78-3.38 s, EDT (500Hz-1000Hz) was 2.22-3.63 s, and D50 (500Hz-4000Hz) was 0.3-0.62. The speech intelligibility in the stadium with a smaller volume decreased with the increase in RT or EDT, which was also found in ordinary spaces [5,27]. However, in the velodrome, for a relatively low SNR, this phenomenon was observed only when RT was less than 3 s; when RT was more than 3 s, the speech intelligibility increased with the increase in RT.…”
Section: Effect Of the Room-acoustic Parameterssupporting
confidence: 63%
“…On the other hand, the decay curves in large spaces as shown in Fig. 2 showed significant double-curvature, which was different from the exponential decay curves in ordinary spaces [27]. Moreover, the early decay rate at low-and-medium frequency sound which was the main components of speech had obvious fluctuation.…”
Section: Effect Of the Room-acoustic Parametersmentioning
confidence: 81%
“…There are also studies investigating the relationships between various developed indices, for instance, Okano et al, 13 Carvalho, 14 and Tang. 15 The prediction of objective performance indices is also a hot topic. However, owing to the complexity of a performance hall, analytical formulas are hardly available.…”
Section: Introductionmentioning
confidence: 99%
“…In the process of simulation, though the speech related acoustic parameters [27] such as EDT, RT, C80 and SPL have been carefully controlled, biases still exist between the simulated and in-situ measured speech intelligibility scores, and accordingly, further investigation is required to determine the cause.…”
Section: Discussionmentioning
confidence: 99%