Method and apparatus for dynamically adjusting playout delay

Disclosed is a method and apparatus for dynamically adjusting playout delay for voice packets, which mainly includes three parts of dynamic adjustment, i.e. playout delay, silence length, and jitter buffer size. In the invention, the time for playout delay is real-time adjusted according to the prob...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHIUE, DE-HUI, WU, YI-WEI, LIN, ZHE-HONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION MUSICAL INSTRUMENTS PHYSICS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	Disclosed is a method and apparatus for dynamically adjusting playout delay for voice packets, which mainly includes three parts of dynamic adjustment, i.e. playout delay, silence length, and jitter buffer size. In the invention, the time for playout delay is real-time adjusted according to the probability distribution of the number of packets buffered in the jitter buffer. A voice active detection is taken to detect silence within a voice packet. By dynamically adjusting the silence length in the voice packet, the present invention reduces the network variation impact on the voice quality. It also overcomes the drawback of conventional techniques for estimating playout delay, and reduces the whole computation complexity of the playout delay for voice packets.