La Defense, France
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Marquis-Favre C.,University of Lyon | Morel J.,Grande Arche | Richez A.,MEDDE DDT Loiret
41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012 | Year: 2012

Both acoustical and non-acoustical factors influence noise annoyance. The only acoustical factor taken into account in current annoyance models is mean acoustical energy, whereas other acoustical factors (linked to frequency and temporal contents) also influence noise annoyance. Thus, more investigations are needed to better take into account such acoustical factors. This step requires assessing noise annoyance with controlled acoustical factors in laboratory conditions. To that end, two main methods exist in the literature: one with imaginary context (subjects listen to stimuli in a quiet room), and one with simulated context (subjects perform activities in a simulated living room exposed to noise). The question may arise whether an experiment with imaginary context is pertinent for shortterm noise annoyance assessment. The current paper aims at comparing results obtained from experiments based on imaginary and simulated contexts. The comparison revealed a significant difference between contexts in terms of mean noise annoyance responses. But it also showed that the noise annoyance models, respectively determined under imaginary and simulated contexts, provided similar prediction quality when these models are confronted with noise annoyance responses collected in situ. Thus, an experiment with imaginary context is suitable for investigating acoustical factors that influence noise annoyance.

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