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A system for morphing the softness and brightness of two sounds independently from their other perceptual or acoustic attributes was coded. The system is an extension of a previous one that morphed brightness only, that was based on the Spectral Modelling Synthesis additive/residual model. A Multidimensional Scaling analysis, of listener responses to paired comparisons of stimuli generated by the morpher, showed movement in three perceptually-orthogonal directions. These directions were labelled in a subsequent verbal elicitation experiment which found that the effects of the brightness and softness controls were perceived as intended. A Timbre Morpher, adjusting additional timbral attributes with perceptually-meaningful controls, can now be considered for further work.
Author (s): Williams, Duncan; Brookes, Tim
Affiliation:
Institute of Sound Recording, University of Surrey, Guildford, Surrey, UK
(See document for exact affiliation information.)
AES Convention: 126
Paper Number:7778
Publication Date:
2009-05-06
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Session subject:
Psychoacoustics and Perception
Permalink: https://aes2.org/publications/elibrary-page/?id=14974
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Williams, Duncan; Brookes, Tim; 2009; Perceptually-Motivated Audio Morphing: Softness [PDF]; Institute of Sound Recording, University of Surrey, Guildford, Surrey, UK; Paper 7778; Available from: https://aes2.org/publications/elibrary-page/?id=14974
Williams, Duncan; Brookes, Tim; Perceptually-Motivated Audio Morphing: Softness [PDF]; Institute of Sound Recording, University of Surrey, Guildford, Surrey, UK; Paper 7778; 2009 Available: https://aes2.org/publications/elibrary-page/?id=14974