Patent ID: 7978862
Filing Date: 2011-07-12
Classification: G10L

Abstract:
1. A method for attenuation or removal of an unwanted sound from a recorded audio signal comprising the steps of: displaying a spectrogram representing the recorded audio signal for viewing by an operator; the operator viewing the spectrogram and graphically selecting a region on the spectrogram display to select a portion of the recorded audio signal, the selected portion of the recorded audio signal being constrained in time and frequency, the selected portion of the recorded audio signal containing the unwanted sound and being surrounded on the spectrogram by a desired portion of the recorded audio signal; interpolating an estimate for the recorded audio signal within the selected region on the spectrogram; and replacing the selected portion of the recorded audio signal with the estimate such that the unwanted sound is attenuated or removed while the audio signal outside the selected region is not adversely affected.