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A Bayesian approach to the restoration of degraded audio signals

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2 Author(s)
Godsill, S.J. ; Signal Process. & Commun. Group, Cambridge Univ., UK ; Rayner, P.J.W.

In this paper we derive the a posteriori probability for the location of bursts of noise additively superimposed on a Gaussian AR process. The theory is developed to give a sequentially based restoration algorithm suitable for real-time applications. The algorithm is particularly appropriate for digital audio restoration, where clicks and scratches may be modelled as additive bursts of noise. Experiments are carried out on both real audio data and synthetic AR processes and significant improvements are demonstrated over existing restoration techniques

Published in:

Speech and Audio Processing, IEEE Transactions on  (Volume:3 ,  Issue: 4 )

Date of Publication:

Jul 1995

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