The Audio Engineering Society 16th International Conference: Spatial Sound Reproduction, 10-12 April 1999


The impact of decorrelated low-frequency reproduction on auditory spatial imagery: Are two subwoofers better than one?

William L. Martens

Human Interface Lab
University of Aizu
Aizu-Wakamatsu, Fukushima

In contrast to sound reproduction systems using one subwoofer, the use of two subwoofers enables the presentation of decorrelated low-frequency signals that produce useful variation in auditory spatial imagery. Controlled listening experiments confirmed that this variation is lost when decorrelation is not reproduced at low-frequencies, and that this loss is particularly great for signals exhibiting negative values of cross correlation.

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Last modified: 12.03.1999