Publication type: Conference paper
Type of review: Peer review (abstract)
Title: Media clock synchronization based on PTP
Authors : Heinzmann, Stefan
Weibel, Hans
Proceedings: 44th Audio Engineering Society International Conference 2011 : Audio networking
Conference details: AES 44th International Conference - Audio Engineering Society, San Diego, USA, 18-20 November 2011
Issue Date: 2012
Publisher / Ed. Institution : Curran Associates
ISBN: 978-1-62276-006-0
Language : English
Subjects : Networked Audio; Accurate Clock Distribution; Ravenna; Time Synchronization
Subject (DDC) : 004: Computer science
Abstract: The Precision Time Protocol (PTP) according to IEEE 1588 and its variants are increasingly being used as the basis for achieving accurate media clock distribution and synchronization in media networks. This article introduces the principles of PTP with a view towards media clock synchronization, and gives an overview of requirements for media clock distribution in a network. We show how PTP can be harnessed for reconstructing media clocks locally in each network node in such a way that those requirements can be met. We discuss different strategies for clock synthesis and distribution, their application area, and the impact on the implementation of a node. We finally discuss two existing media network frameworks (AVB and RAVENNA) which both utilize PTP for media clock synchronization, and analyze the commonalities and differences between them.
Fulltext version : Published version
License (according to publishing contract) : Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Embedded Systems (InES)
Appears in Collections:Publikationen School of Engineering

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