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OFAI-TR-2012-05 ( 1818kB PDF file)

Constructing high-level perceptual audio descriptors for textural sounds

Thomas Grill

This paper describes the construction of computable audio descriptors capable of modeling relevant high-level perceptual qualities of textural sounds. These qualities - all metaphoric bipolar and continuous constructs - have been identified in previous research: high-low, ordered-chaotic, smooth-coarse, tonal-noisy, and homogeneous-heterogeneous, covering timbral, temporal and structural properties of sound. We detail the construction of the descriptors and demonstrate the effects of tuning with respect to individual accuracy or mutual independence. The descriptors are evaluated on a corpus of 100 textural sounds against respective measures of human perception that have been retrieved by use of an online survey. Potential future use of perceptual audio descriptors in music creation is illustrated by a prototypic sound browser application.

Keywords: Music Information Retrieval, Audio descriptor, Perception

Citation: Grill T.: Constructing high-level perceptual audio descriptors for textural sounds, Proceedings of the 9th Sound and Music Computing Conference (SMC 2012), pp. 486-493, Copenhagen, Denmark, 2012