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Comparison of Different Calculation Methods of Effective Duration (e) of the Running Autocorrelation Function of Music Signals

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This paper discusses methods to calculate the eff ective duratione of the running autocorrelation function (ACF) of music signals. The iterative method is newly proposed and compared with the methods of previous studies. The index R, describing the accuracy of thee regression, is also introduced. The iterative method was found to improve the accuracy of thee regression for orchestral music signals with a wide variation of ACF envelopes. The resultinge is discussed with reference to music tempo; thee value increased as the music tempo decreased. Also, a longer inter-onset interval led to a longe value and staccato results in a shorte value.

Document Type: Research Article


Publication date: 2011-05-01

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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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