Patent ID: 7881284
Filing Date: 2011-02-01
Classification: G10L

Abstract:
1. A method for dynamically adjusting playout delay of audio signals encoded into a sequence of voice packets and transmitted from a transmitting end through a packet-switched network to a receiving end, said method comprising the steps of: storing a plurality of said voice packets in a jitter buffer at said receiving end, and dynamically determining whether to adjust silence length in said voice packets based on the number of said voice packets in said jitter buffer in order to adjust said playout delay; dividing said jitter buffer into three zones for temporarily storing said voice packets, and providing dynamic adjustment of silence length to extend or shrink said playout delay; and dynamically adjusting the sizes of said three zones of said jitter buffer according to the number of said voice packets in said jitter buffer; wherein said step of dynamically adjusting the sizes of said three zones further comprises the steps of: using a probability model to obtain P comparing pre-defined values T