Bayesian interpolation in a dynamic sinusoidal model with application to packet-loss concealment
Jesper Kjær Nielsen, Mads Græsbøll Christensen, Ali Taylan Cemgil, Simon Godsill, Søren Holdt Jensen · VBN Forskningsportal (Aalborg Universitet) · 2010
In this paper, we consider Bayesian interpolation and parameter estimation in a dynamic sinusoidal model. This model is more flexible than the static sinusoidal model since it enables the amplitudes and phases of the sinusoids to be time-varying. For the dynamic sinusoidal model, we derive a Bayesian inference scheme for the missing observations, hidden states and model parameters of the dynamic model. The inference scheme is based on a Markov chain Monte Carlo method known as Gibbs sampler. We illustrate the performance of the inference scheme to the application of packet-loss concealment of lost audio and speech packets. © EURASIP, 2010.