Comments

rmack350 wrote on 10/6/2003, 4:09 AM
It's simulating a TV. Basically it's simulating video playback.

People like to say that DV has non-square pixels. This is kind of true but not the best description.

DV is a digitization of a video signal. The video frame is sampled 720 times for each line of the image. Gives you a frame that is 720 px wide. The problem is that the horizontal sampling isn't proportional to the vertical sampling. If you sampled an NTSC frame of video with a perfect square on it the square might be 150px wide by 100px high-even though it appears perfectly square.

On a computer monitor it will look like a 150x100 rectangle. On an NTSC monitor it will look like a 100x100 square.

(You can relate this to audio sampling rates. A second of audio at 48 KHz will have more samples than it would at 32 KHz. "Simulate Device" functions like a sample rate conversion, adjusting a higher sample rate file so that it plays back properly on a lower sample rate device.)

"Simulate device" makes the image look about like it would look on a TV monitor.

Rob Mack