Establishing optimal audio latency in streaming applications over a packet-based network
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United States of America Patent
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Jun 17, 2003
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N/A
app pub date -
Aug 16, 1999
filing date -
Aug 16, 1999
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Abstract
An embodiment of the invention is a method of helping establish optimal latency in audio streaming applications over a packet switched network. The method involves determining whether an elapsed time between arrival of first and second packets, the packets being parts of a stream of audio sent by a transmit process through the network and received by a receive process, is primarily a network delay due to the second packet being slowed while traveling through the network, or primarily a transmit delay due to a delay by the transmit process in sending the second packet. The elapsed time is included as part of interpacket delay statistics only if it is determined that the elapsed time is primarily due to the network delay. The latency may then be adjusted by adjusting the size of a packet queue based on more accurate interpacket delay statistics.
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