An efficient time-varying loudness model

Ward, D. and Athwal, C. and Kokuer, M. (2013) An efficient time-varying loudness model. In: 2013 14th IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2013, 20 October 2013 through 23 October 2013, New Paltz, NY; United States.

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Abstract

In this paper, we present an efficient loudness model applicable to time-varying sounds. We use the model of Glasberg and Moore (J. Audio Eng. Soc., 2002) as the basis for our developments, proposing a number of optimization techniques to reduce the computational complexity at each stage of the model. Efficient alternatives to computing the multi-resolution DFT, excitation pattern and pre-cochlea filter are presented. Absolute threshold and equal loudness contour predictions are computed and compared against both steady-state and time-varying loudness models to evaluate the combined accuracy of these techniques in the frequency domain. Finally, computational costs and loudness errors are quantified for a range of time-varying stimuli, demonstrating that the optimized model can execute approximately 50 times faster within tolerable error bounds. © 2013 IEEE.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: loudness, perceptual models, psychoacoustics, Computational costs, Excitation pattern, loudness, Optimization techniques, Perceptual model, psychoacoustics, Time-varying loudness, Time-varying sounds, Audition, Error analysis, Optimization, Signal processing, Sound reproduction, Audio acoustics
Subjects: G400 Computer Science
Divisions: UoA Collections > UoA11: Computer Science and Informatics
Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Computing and Digital Technology
Faculty of Computing, Engineering and the Built Environment > School of Computing and Digital Technology > Digital Media Technology
Depositing User: Hussen Farooq
Date Deposited: 27 Jul 2016 10:47
Last Modified: 27 Jul 2016 10:47
URI: http://www.open-access.bcu.ac.uk/id/eprint/2529

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