Patent ID: 7099820
Filing Date: 2006-08-29
Classification: G10L,H04J,H04L

Abstract:
1. A method for concealing audible distortions resulting from jitter buffer expansion, comprising: receiving an audio stream; determining a pitch period associated with the audio stream; storing the audio stream in a jitter buffer comprising a capacity; increasing the capacity of the jitter buffer by an integer multiple of the pitch period; inserting additional audio data in the audio stream, the additional audio data having a duration corresponding to the integer multiple of the pitch period; determining if the increase in the capacity of the jitter buffer exceeds a selected number of pitch periods; if the increase exceeds the selected number of pitch periods, inserting the additional audio data in more than one step, each step comprising inserting a portion of additional audio data having a duration no more than the selected number of pitch periods; and communicating the audio stream for presentation to a user.