The editor of a movie is finalising the music score. They will send the final version of the score to the movie producer by email attachment.
a) Describe how sampling is used to record the music sound clips.
b) The music sound clips need to undergo some form of data compression before the music editor can send them via email. Identify the type of compression, lossy or lossless, they should use.
Give a justification for your answer.
c) One method of data compression is known as run length encoding (RLE).
i) Explain what is meant by RLE.
ii) Show how RLE would be used to produce a compressed file for the image below.
Write down the data you would expect to see in the RLE compressed format (you may assume that the grey squares have a code value of 85 and the white squares have a code value of 255).