Restoring corrupted audio signals

摘要

A method of restoring a corrupted audio signal includes the steps of inputting the corrupted audio signal in a first channel, inputting one or more further correlated audio signals in one or more further channels, and restoring the corrupted audio signal using a Multi-Channel Autoregressive (AR) Model that models the corrupted signal as a linear combination of scaled time shifted portions of the further signal(s) and the corrupted signal. Embodiments are described in which the method is used to improve received audio signals in DAB receivers and mobile telephones.