Questionnaire
What do the numbers 16:9 refer to?: The aspect ratio of a screen.
What is the frame size of a 1080p video file? 1920 x 1080
If you have a video file which is 720:50 what is the frame rate and what does the p stand for?: The frame rate is 50fps (frames per second.) P stands for progressive scan.
What is the difference between p and i?: they both specify how many fps there are in a video file. The difference being that p allows for one shot to be shown after the other whilst i (interlaced scan) shows half frames at any one moment. P designation produces higher quality film, though it takes more storage on desktops.
What frame rate is real film shot at?: 24fps
What might be the advantage at shooting at a higher frame rate?: the condesity of each clip will be smaller and therefore the footage will roll better, producing better quality films.
What defines a lossy file?: Highly condensed files.
Name three file types commonly used in video editing: MPEG, MOV and AVCHD.
What is the difference between a video file type and a codec? A video file type holds footage whilst a codec allows those files to be compressed or decoded, and uploaded to programmes to edit. Codec's can compress or decompress files.
What is bitrate? A bitrate is the rate at which a file processes information.
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