Audio descriptive analysis & mapping of spatial sound displays

This study presents a method termed Audio Descriptive Analysis & Mapping (ADAM) to a study of spatial sound displays. Several subjective tasks were performed including a preference experiment, descriptive language development and lastly scaling of all stimuli based on developed attribute scales. The process associated with the descriptive language and attribute scale development is described in detail. A large number of stimuli (104) were employed comprising of 8 audio recording/reproduction techniques in 13 different sound environments, in an effort to broadly evaluated spatial sound displays. Preference data was submitted to a principle components analysis to study the underlying structure of the data. In order to study how subjective preference is formulated, preference data and direct attribute data were submitted to a preference mapping procedure employing partial least square regression.

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