Publication

Paul T. Troughton and Simon J. Godsill. Restoration of Nonlinearly Distorted Audio Using Markov Chain Monte Carlo Methods. Journal of the Audio Engineering Society (Abstracts), 46 (6), p. 569 (1998 June), preprint 4679. Presented at the 104th Convention of the Audio Engineering Society, Amsterdam, May 1998.

We present a method for restoration of audio which has been distorted by a nonlinear channel, i.e. recording medium. We model the signal as a linear process cascaded with a nonlinear distortion. We use sampling methods to perform model selection and parameter estimation. We allow the linear model to be nonstationary, and present results for both synthetic and real distortions.

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