Chapter 13: Digital Video Sizing

 Data Rate 

•  the rate at which information being transferred.
• data rate used to describe the speed of a hard drive is Megabytes/second.

 Calculate the file size of an uncompressed digital video file

Raw video data size

= frame size (width X height) * frame rate (fps) * colour depth (in bytes) *

    time (in seconds)

Bits: 

1 byte = 8 bits

1 kilobyte = 1,024 bits

1 megabyte = 1,048,576 bits

1 gigabyte = 1,073,741,824 bit

Calculate the file size of an uncompressed digital audio file 

Factors to consider when selecting graphics to be used in a multimedia project

•  Purpose 
•  Quality  
•  Cost

Chapter 12: Broadcast Video Standard

 Boardcast Video Standards

 •  NTSC (National Television Standards Committee)

  - 525 lines/60Hz

  - This standard is used primarily in North America, Taiwan, South Korea, Japan.

  - 30 fps

•PAL (Phase Alternate Line)

  - 625 lines/50Hz

  - This standard is used primarily in Europe, Asia, and Southern Africa.

  - 25 fps

•SECAM (Systeme Electronique Couleur Avec Memoire)

  - 625 lines/50Hz

  - This standard is used primarily in France, parts of Middle East, and Russia.

  - 25 fps