chapter  14
7 Pages

Importing graphics

The native video frame size used by Avid (PAL) is the ITU-R 601 standard of 720 × 576 non-square pixels, for the standard 4:3 aspect ratio. A little arithmetic will show that 720 × 576 does not equate to an aspect ratio of 4:3. This is because the pixels are not square but, in PAL, are slightly wider than they are high, thus displaying the normal 4:3 image on the video monitor. A similar situation exists in NTSC, but the frame size in that standard is 720 × 486 non-square pixels.