Real Time Auralization of Non-Stationary Traffic Noise - Quantitative and Perceptual Validation in an Urban Street (original) (raw)

Abstract

This paper presents a validation study of a recently developed auralization technique for non-stationary traffic noise in urban areas. The approach implements a real time sample-based synthesis of engine and tire noise components allowing the restitution of moving vehicles with varying speed and engine regime. The acoustic propagation between sources and the listener location is modeled using standard engineering methods where the most important propagation paths are rendered individually. Results from an urban test site comparing recorded and auralized sequences of road traffic noise are discussed. The site features two types of road surfaces. Statistical pass-by analysis and binaural recordings were carried out for both road surface types. Auralized sequences using equivalent traffic flow conditions were then simulated. Different noise abatement approaches including low barriers and additional road surface types were also simulated. Pass-by sound pressure level indicators obtained...

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