Chapter 13

Calculating the File Size of an Uncompressed Digital Video:

- Raw video data size = frame size (width X height) * frame rate (fps) * color depth (in bytes) * time (in seconds).

8 bits = 1 byte

1 kilo = 1,024 (from byte to bits)

1 mega = 1,048,576 (bite to byte)

1 giga =  1,073,941,824 (bits to bytes) 

-for Audio:

8-bit mono Seconds x kHz = Size

16-bit mono (Seconds x kHz) x 2 = Size

8-bit stereo (Seconds x kHz) x 2 = Size

16-bit stereo ([Seconds x kHz] x 2) x 2 = Size

16-bit 5.1 ([Seconds x kHz] x2) x 6 = Size

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

a) Purpose:

– Avoid using images for “filler” or when they have little in common with the overall message or purpose