Lesson Goals
Know various video broadcast methods
Be able to identify resolution, aspect ratio, file formats
Understand where various standards are used
#broadcast #resolution #aspect ratio #format
Broadcast
Video can be broadcast using various methods including:
Know various broadcast methodsResearch the use of video standards
#broadcast #resolution #aspect ratio #format
Resolution Know various broadcast methodsResearch the use of video standards
#broadcast #resolution #aspect ratio #format
This is the number of pixels displayed on a screen given as width x height
Standard Definition (SD)
480p 720x480
576p 720x576
High Definition (HDTV)
720p 1280x720
1080p 1920x1080
Ultra High Definition (UHDTV)
4K 3480x2160
8K 7680x4320
Digital Cinema (DCI)
2K 2048x1080
4K 4096x2160
Aspect RatioThis is the relationship between the width and height of a video:
Know various broadcast methodsResearch the use of video standards
#broadcast #resolution #aspect ratio #format
Standard Widescreen Cinemascope
4:3 16:9 21:9
Standard TV format for second half of 20th century
Accepted widescreen video standard used for TV, DVD and HD Video
Very wide screen format that is mainly used in cinemas
4
3 9
16
9
21
Video Standards
Standard Definition (PAL and NTSC)
High Definition (HD)
Know various broadcast methodsResearch the use of video standards
#broadcast #resolution #aspect ratio #format
Phase Alternating Line National Television System Committee
High Definition
Europe & Africa
25 fps
625 scan lines
Superior picture quality
Developed in 1940
North/South America
30 fps
525scan lines
Smoother picture
Predominant Digital Format
Better sound quality
Americas ATSC
Europe DVB-T
File Formats
There are many different video file formats used including:
Know various broadcast methodsResearch the use of video standards
#broadcast #resolution #aspect ratio #format
Your Task
Briefly explain the following:Broadcast MethodsResolutionAspect Ratio
List the main video standards and explain where each is used:
PALNTSCHigh Definition
List some file formats and say where they are most often used.
Know various broadcast methodsResearch the use of video standards
#broadcast #resolution #aspect ratio #format
Broadcast
Resolution
Aspect Ratio
The way in which a video is sent out for people to be able to view it
Number of pixels that make up the display, given as a width x height
Ratio of the width to the height on the display being used
Key Words Know various broadcast methodsResearch the use of video standards