Patent ID: 8326621

Claim:
A system for attenuating repetitive transient noise, comprising: a repetitive transient noise detector configured to determine whether an aural signal includes a repetitive transient noise based on a comparison between the aural signal and a repetitive transient noise model, where the repetitive transient noise detector comprises a processor configured to perform the comparison by fitting the repetitive transient noise model to the aural signal in a time-frequency domain, and where the repetitive transient noise detector is configured to identify the repetitive transient noise as being repetitive based on a correlation between a temporal shape of the aural signal and a temporal shape of the repetitive transient noise model, and a correlation between a spectral shape of the aural signal and a spectral shape of the repetitive transient noise model; and a repetitive transient noise attenuator responsive to the repetitive transient noise detector and configured to attenuate the repetitive transient noise identified in the aural signal and generate a noise-reduced aural signal.