The document discusses synchronization, defining it as the coordination of events within systems, and highlights its significance in various fields such as computer science, multimedia, and telecommunication. It further explains multimedia synchronization, the types of media data, and the three levels of synchronization: intra-media, inter-media, and inter-party. Additionally, it introduces the Synchronized Multimedia Integration Language (SMIL) for creating interactive audiovisual presentations.

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Department of Information Technology
School Of Technology, Assam University Silchar
Presented By
Deepak Gupta (31320025)
B.Tech (IT) 6th Sem
Assam University , Silchar
Guided By
Mr. Sourish Dhar
Assistant Professor
Dept. of Information Technology
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2. Synchronization is The Co-ordination of The Events To
Operate A System in Unison .
Systems operating with all their parts in synchrony are
said to be synchronous or in sync.
Ex. Republic Day Parade
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SYNCHRONIZATION
 DEFINATION :-
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 Synchronization is An Important Concept in The Following Fields :-
1. Computer science
2. Cryptography
3. Multimedia
4. Music
5. Neuroscience
6. Photography
7. Physics
8. Synthesizers
9. Telecommunication
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 MULTIMEDIA SYSTEM :-
A system or application that
supports the integrated processing
of several media types .
MULTIMEDIA SYNCHRONIZATION:-
Synchronization in multimedia
system refers to the temporal
relations between media objects in a
multimedia system .
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 Two type of media data :-
1.Continuous : Time-Dependent
Ex :- Real-Service (Live Video)
2.Discrete : Time-Independent
Ex :- Text or Graphic
 Three Levels Of MM Synchronization :-
1. Intra-Media Synchronization
2. Inter-Media Synchronization
3. Inter-Party Synchronization
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1. Intra-Object Synchronization :-
Time Relation Between Various Presentation Units of One Time-Dependent
Media Object
Ex : Time relation between the single frames of a video sequence. For a video with
a rate of 25 frames per second each of the frames has to be displayed for 40 ms .
Frames of a video sequence that shows a jumping ball
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2. Inter-Object Synchronization :-
The Synchronization Between Media Objects .
Ex : Time Relations of A Multimedia Synchronization That Starts With
Audio/Video Sequence , Followed By Several Pictures And An Animation That is
Commented By An Audio Sequence .
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3. Inter-Party Synchronization :-
Also Known As Event Synchronization
Maintains The Inter-Media and/or Intra-Media
Synchronization Among Different Participants
At Distributed Locations .
Ex. Remote Learning
Video Conferencing
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 Media Objects :-
Texts , Graphics and Images , Audio ,Video etc..
 Distributed Storage of Synchronization
Information .
 Distributed Storage of Media Objects .
 Communication Delays and Jitter .
 Multi-Party Communication Patterns .
 Distributed Environment :-
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 Types of Temporal Relations Between Two Objects :-
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 Logical Data Unit (LDU) Hierarchy :-
LDU is the unit of a media stream. Different streams have different LDU size.
 Example of Video/Audio/User-Defined LDU :-
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 Synchronized Multimedia Integration Language (SMIL) :-
 SMIL (Pronounced "smile") Enables Simple Authoring
Of Interactive Audiovisual Presentations .
 SMIL is Typically Used for “Rich Media"/ Multimedia
Presentations Which Integrate Streaming Audio And
Video With Images , Text Or Any Other Media Type .
 SMIL is An Easy-To-Learn HTML- Like Language .
 SMIL Presentations Are Written Using A Simple Text-Editor .
 More Details http://www.w3.org/AudioVideo/
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