Physical Factors and Spatial Impressions of Surround Sound Recording

Verbal descriptors are often used on rating scales in the evaluation of spatial impression. However, in the more critical evaluation of spatial impression such as surround microphone settings, it becomes very difficult to share meanings for each perceptual attribute among the evaluators. The authors...

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Bibliographic Details
Published in:2012 13th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel and Distributed Computing pp. 580 - 585
Main Authors: Kamekawa, T., Marui, A.
Format: Conference Proceeding
Language:English
Japanese
Published: IEEE 01.08.2012
Subjects:
Analysis of variance
Brightness
Correlation
Ear
Educational institutions
ESC. spatial homogeneity
IACC
Microphones
surround sound
ISBN:1467321206, 9781467321204
Online Access:Get full text
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Summary:Verbal descriptors are often used on rating scales in the evaluation of spatial impression. However, in the more critical evaluation of spatial impression such as surround microphone settings, it becomes very difficult to share meanings for each perceptual attribute among the evaluators. The authors attempted to elicit common attributes from surround sound recordings by triadic elicitation procedure. Three attributes, "brightness," "temporal separability," and "spatial homogeneity," were elicited. In this paper, authors focused on "spatial homogeneity" and considered related physical parameters such as IACC (inter-aural cross correlation coefficient), τ (tau; inter-aural time difference corresponding to IACC), and ESC (ear signal correlation; defined as the correlation between left and right ears' signal). From the data measured by a dummy-head facing toward different directions (left (15°, 30°), right (15°, 30°), and front (0°)), it was suggested that the value of ESCdl, defined as ESC differences between front and the other directions at lower ESC (under 0.5), in specified some frequency bands, was related to "spatial homogeneity".
ISBN:1467321206
9781467321204
DOI:10.1109/SNPD.2012.116