Unified mixing, speaker selection, and jitter buffer management for multi-speaker packet audio systems

摘要

A receiver manages multiple speakers in a packet network telephone call. A packet gateway receives audio packets from the multiple speakers over the packet network. Memory in each receiver stores the audio packets and information about the multiple speakers in the telephone call. A processor selects which audio packets and what speaker information to retain in memory. The processor determines which of the selected audiopackets to store in memory and mix together to produce an audio output signal by determining from the speaker information which of the multiple speakers are actively talking and which speaker has not actively talked for the longest period of time.