Determining the Just Noticeable Difference in Timbre Through Spectral Morphing: A Trombone Example
Abstract:The produced sound and corresponding spectrum of musical instruments are usually aff ected to some degree when small variations in the parameters of the instrument are made. However, the question remains, of how much a certain parameter has to vary in order for the instrument to produce a difference in sound that can be perceived. The subject of this paper is to determine the Just Noticeable Diff erence between pairs of sounds corresponding to morphs (interpolations) between sounds of a trombone played with two different mouthpieces. This was done with the aid of a 2-alternative forced choice psychoacoustical test, where pairs of synthesised signals with varying degrees of spectral diff erence (generated through spectral morphing) were presented to subjects in randomised order.
Document Type: Research Article
Publication date: May 1, 2011
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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