Relationships between arithmetic averages of sound pressure level calculated in octave bands and Zwicker’s loudness level

Previously it has been found through a series of psychoacoustical experiments that the arithmetic average of sound pressure level calculated in octave bands is a good estimator of loudness for various kinds of environmental noise. Remarkably, the arithmetic average of sound pressure level in octave...

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Bibliographic Details
Published in:Applied acoustics 2006, Vol.67 (7), p.720-730
Main Authors: Ishibashi, Mutsumi, Preis, Anna, Satoh, Fumiaki, Tachibana, Hideki
Format: Article
Language:English
Subjects:
Arithmetic average
Audition
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Loudness
Perception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Zwicker’s loudness level
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Summary:Previously it has been found through a series of psychoacoustical experiments that the arithmetic average of sound pressure level calculated in octave bands is a good estimator of loudness for various kinds of environmental noise. Remarkably, the arithmetic average of sound pressure level in octave bands from 63 Hz to 4 kHz, L m,1/1 (63–4k), strongly correlates with the loudness level specified in ISO 532B, LL( Z), as well as with loudness assessment. To investigate this relationship further, a numerical study has been carried out based on Zwicker’s loudness model. As a result, practical expressions to estimate the loudness levels of general environmental noises from the sound pressure levels in octave bands from 63 Hz or 125 Hz to 4 kHz are proposed.
ISSN:0003-682X
1872-910X
DOI:10.1016/j.apacoust.2005.09.003