By Topic

A 3G Video Phone Solution of Improving Synchronization between Audio and Video

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Gao Yongqing ; Dept. of Electron. Inf. Eng., North China Inst. of Sci. & Technol., Sanhe, China ; Shang Dan ; Ping Yucai

This paper analyzes the reasons of asynchronous between audio and video image for current 3G video phones. A solution for improving the synchronization between audio and video data is proposed. The solution proposed in this work mainly consists of software components, according to which hardware needs to be selected. It also gives the video phone terminal structure, block diagram for H.324M video phone terminal, the main software functional blocks, the implementation flow chart of each module and the whole implementation flow chart of the designed solution. The synchronization performance of audio and video can be improved by adding user interface module, timestamp monitoring module and audio decoder controlling module, as well as by detecting the current decoding states of both audio decoder chip and video decoder chip, by the use of software to control the decoding rate of the sound decoder and video decoder, improving the effects of 3G video phone communications.

Published in:

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Date of Conference:

23-25 Sept. 2010