Patent ID: 7729906
Filing Date: 2010-06-01
Classification: G10L,G11B

Abstract:
1. A method to detect at least one noise signal in a digital audio signal using at least one processor, the method comprising: dividing the digital audio signal into a plurality of successive signal sections; determining, by the at least one processor, an energy content for each of the plurality of successive signal sections; comparing the energy content for each of the plurality of successive signal sections, to an energy threshold; detecting, among the plurality of successive signal sections, at least one high-energy signal section having an energy content greater than the energy threshold, wherein the at least one high-energy signal section has at least one preceding signal section having an energy content less than the energy threshold and at least one following signal section having an energy content less than the energy threshold; counting a first quantity of the at least one preceding signal section, a second quantity of the at least one high-energy signal section, and a third quantity of the at least one following signal section; and determining if the at least one high-energy signal section represents the at least one noise signal based, at least in part, on the first quantity, the second quantity, and the third quantity.