Journal ArticleDOI
Aircraft noise-Auralization-based assessment of weather-dependent effects on loudness and sharpness.
TLDR
In this paper, the effect of weather conditions on the perception of aircraft noise was investigated using A-weighted sound pressure levels and psycho-acoustic measures regarding loudness, N, and sharpness.Abstract:
This paper deals with the question of how specific weather conditions affect the perception of aircraft noise. Auralization is a suitable method by enabling parametrical decompositions of the overall aircraft noise scenario into source and propagation components. Considering influences on the auditory perception, the signal processing chain contains different virtual receivers and post processing using psychoacoustic hearing models. For broad coverage, generic standardized as well as measurement-based atmosphere models with variation of ground impedances such as soil data are evaluated. These variations are given aircraft noise measurement values based on A-weighted sound pressure levels L A and psychoacoustic measures regarding loudness, N, and sharpness, S. The results show an immense influence of weather conditions on A-weighted sound pressure levels and on psychoacoustic perception of aircraft noise, too. The weather-dependent differences of A-weighted sound pressure levels are up to 15 dB A and relative differences regarding loudness of factor 1.6 and sharpness of factor 2.0 occur. The approach can be used to get a better understanding of how the temporal statistics of specific local weather conditions and their perceptual consequences may lead to improved taxation of actual noise events and to an improved basis for long-term averages of aircraft noise effects.read more
Citations
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Journal ArticleDOI
Multi-Detailed 3D Architectural Framework for Sound Perception Research in Virtual Reality
TL;DR: A comprehensive framework, defined by the visual and acoustic cues—geometries, materials, sources, receivers, and postprocessing—on one side and three levels of detail on the other is presented, so that very specific research application needs can be covered, as well as a modular concept for future modeling demands.
Journal ArticleDOI
Auralization of aircraft flyovers with turbulence-induced coherence loss in ground effect.
Reto Pieren,Dorothea Lincke +1 more
TL;DR: In this paper , a simple approach to include turbulence-induced coherence loss in ground effect is presented, which is based on the von Kármán turbulence spectrum and a time-variant partial decorrelation filter.
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Urban Sound Auralization and Visualization Framework—Case Study at IHTApark
TL;DR: In this article , the authors present a framework combining the possibilities of the open-source auralization tool Virtual Acoustics with 3D visualization, which can be either reproduced with head-mounted displays (HMD) or using online video platforms and traditional playback devices.
Journal ArticleDOI
Auditory detection probability of propeller noise in hover flight in presence of ambient soundscape.
TL;DR: This study presents a framework for estimating propeller-based UAV auditory detection probability on the ground for a listener in a real-life scenario through results of an exemplar measurement in an anechoic environment with a single two- and five-bladed propeller.
Journal ArticleDOI
Phase-modulated Rice model for statistical distributions of complex signals
TL;DR: In this article , the authors extended the basic Rice model to include a random modulation in the signal phase, which is attributable to the influence of the largest, most energetic inhomogeneities in the propagation medium.