Patent ID: 7379864
Filing Date: 2008-05-27
Classification: G10L,Y10S

Abstract:
1. A method for identifying possible previous packet loss in previously packetized speech based on an analysis of un-packetized speech, the un-packetized speech having been generated from said previously packetized speech, the method comprising the steps of: applying one or more filters to a segment of said un-packetized speech, each of said one or more filters determining an energy parameter value for a given frequency band of said segment of said un-packetized speech; comparing one or more of said determined energy parameter values to one or more corresponding thresholds; and identifying said possible previous packet loss based on said comparison of said one or more of said determined energy parameter values to said one or more of said corresponding thresholds, wherein said one or more filters comprises at least a first filter which determines a first energy parameter value in a first frequency band comprising frequencies less than a first predetermined frequency and a second filter which determines a second energy parameter value in a second frequency band comprising frequencies greater than a second predetermined frequency, and wherein said first and second energy parameter values are compared to first and second thresholds, respectively.