Araw digital sound file samples a sound wave at some interval and measures the height of the wave at each point. thus, raw sound is recorded as a list of numbers. in very broad terms the mp3 audio compression algorithm identifies frequencies and volume levels - low and high - that are outside the range of human hearing and removes the data representing these frequencies from the original. this technique results in a smaller audio file that sounds exactly the same to the human ear. this technique is an example of what type of compression? group of answer choices