Patent ID: 7769189
Filing Date: 2010-08-03
Classification: G10L,G11B

Abstract:
1. A method of editing signal data that represents an audio signal, wherein the audio signal includes background noise and foreground information, the method comprising: storing, within a noise buffer, a background noise print; wherein the background noise print is a copy of a portion of the signal data; wherein said portion corresponds to a time period in which the audio signal contains background noise and substantially no foreground information; and based on the background noise print, modifying the signal data to introduce into the audio signal a segment that contains noise and substantially no foreground information; wherein the background noise print and the segment have different durations; wherein the step of modifying the signal data is performed in response to an operation specified by user input received through a graphical user interface that edits the signal data; wherein the method is performed by one or more computing devices.