Change search
ReferencesLink to record
Permanent link

Direct link
A robust method for estimating synchronization and delay of audio and video for communication services
Blekinge Institute of Technology, Faculty of Engineering, Department of Applied Signal Processing.
Blekinge Institute of Technology, Faculty of Engineering, Department of Applied Signal Processing.
2016 (English)In: Multimedia tools and applications, ISSN 1380-7501, E-ISSN 1573-7721, Vol. 75, no 1, 527-545 p.Article in journal (Refereed) Published
Abstract [en]

One of the main contributions to the quality of experience in streaming services or in two-way communication of audio and video applications is synchronization. This has been shown in several studies and experiments but methods to measure synchronization are less frequent, especially for situations without internal access to the application and independent of platform and device. In this paper we present a method for measuring synchronization skewness as well as delay for audio and video. The solution incorporates audio and video reference streams, where audio and video frames are marked with frame numbers which are decoded on the receiver side to enable calculation of synchronization and delay. The method has been verified in a two-way communication application in a transparent network with and without inserting known delays, as well as in a network with 5 and 10 % packet loss levels. The method can be used for both streaming and two-way communication services, both with and without access to the internal structures, and enables measurements of applications running on e.g. smartphones, tablets, and laptops under various conditions.

Place, publisher, year, edition, pages
Springer US , 2016. Vol. 75, no 1, 527-545 p.
Keyword [en]
Lip sync · Synchronization, Delay, QoE, Video streaming, Video conferencing
National Category
Signal Processing
URN: urn:nbn:se:bth-6407DOI: DOI 10.1007/s11042-014-2306-6ISI: 000367856500024OAI: diva2:833912
Available from: 2015-02-27 Created: 2015-02-26 Last updated: 2016-02-03Bibliographically approved

Open Access in DiVA

fulltext(1861 kB)28 downloads
File information
File name FULLTEXT02.pdfFile size 1861 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Lövström, Benny
By organisation
Department of Applied Signal Processing
In the same journal
Multimedia tools and applications
Signal Processing

Search outside of DiVA

GoogleGoogle Scholar
Total: 48 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 322 hits
ReferencesLink to record
Permanent link

Direct link