Measurement of Regional Environmental Noise by Use of a Pc-Based System. An Application to the Noise Near Airport “G. Marconi” in Bologna

Diagnostic System Based on the Human Auditory–brain Model for Measuring Environmental Noise—an Application to Railway Noise

“…In the results for aircraft noise around an airport [6], the IACC was always near unity during the measurements, while in our results it was always less than 0)5. Another big di!erence was in '!!…”

“…This system has previously been used to characterize aircraft noise [6,7]. The noise of an aircraft in #ight was well characterized.…”

Dissimilarity Judgments in Relation to Temporal and Spatial Factors for the Sound Field in an Existing Hall

“…Primary sensations}loudness, pitch, timbre and temporal duration-and spatial sensations}sub-jective diffuseness, image shift of sound source and apparent source width (ASW)}can be described by the temporal and spatial factors extracted from the autocorrelation function (ACF) and the interaural crosscorrelation function (IACF) respectively. It has been shown that environmental noise can be characterized by these factors [3][4][5]. Fundamental subjective attributes for the sound field in a concert hall are accurately described by the model of auditory-brain system when taking into account the contributions of the ACF and IACF mechanisms.…”

A Computational Software for Noise Measurement and Toward Its Identification

“…are not used for the identi"cation in this paper, spatial information on the noise source including its degree of di!useness and its direction from the receiver can be described by these spatial factors. Experimental results which include spatial factors from the IACF are demonstrated in references [11,12] in this special issue. Figure A1, s G is the arithmetic mean of the standard deviations (SD) for all categories of the ACF factor.…”