Technical aspects of editing

Editing Quiz Questions

1- What do the numbers 16:9 refer to?

                      The number 16 means the width and the number 9 stands for height.

2- What is the frame size of a 1080p video file?
                      P stands for pixels. This means that there is 1920p going across and 1080p going up. 

3- If you have a video file which is 720:50p what is the frame rate and what does the p stand for? 
                        In this case P stands for progressive. A file with 720:50p has a frame rate of 50fps (frames per second).

4- What is the difference between p and i?
                       P stands for progressive, where each frame is shown immediately one after the other.
                       I stands for interlaced, where only half of the frame is shown at time, one half is shown first then the other half follows.

5- What frame rate is real film shot at?
                       23.976 frames per second.

6- What might be the advantage of shooting at a higher frame rate?
                       The quality would be way better and it also will be less blury as the quality is better.

7- What defines a lossy file?
                        A file which uses compression methods such as discarding repeated information in order to decrease its total file size.    

8- Name three file types commonly used in video editing.
                        MOV - WMV - MPEG

9- What is the difference between a video file type and a codec?
                        Video file formats simple store video informations. Codec is shorten for compressor decompressor. This encodes the individual video frame. Eg. AVI is an example of a format and H.264 is an example of a codec.
 

10- What is bitrate?   
                       This is how much information is processed over a period of time. The higher the bit the more information is going through the file.