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Journal Article

Long Interpolation of Audio Signals Using Linear Prediction in Sinusoidal Modeling

Authors: Lagrange, Mathieu; Marchand, Sylvain; Rault, Jean-bernard

Journal of the Audio Engineering Society · Volume 53 · Issue 10 · pp. 891–905 · October 2005

Abstract

Within the context of sinusoidal modeling, a new method for the interpolation of sinusoidal components is proposed. It is shown that autoregressive modeling of the amplitude and frequency parameters of these components allows us to interpolate missing audio data realistically, especially in the case of musical modulations such as vibrato or tremolo. The problem of phase discontinuity at the gap boundaries is also addressed. Finally, an original algorithm for the interpolation of a missing region of a whole set of sinusoids is presented. Objective and subjective tests show that the quality is improved significantly compared to common sinusoidal and temporal interpolation techniques of missing audio data.

Details

Publication
Journal of the Audio Engineering Society
Volume
53
Issue
10
Pages
891–905
Publication date
October 6, 2005
Affiliation
Université Bordeaux 1, Talence Cedex, France (See document for exact affiliation information.)
Type
Journal Article