Answer Posted / andrew miano
In digital audio technology, an encoder is a program that
converts an audio WAV file into an MP3 file, a
highly-compressed sound file that preserves the quality of a
CD recording. (The program that gets the sound selection
from a CD and stores it as a WAV file on a hard drive is
called a ripper.) An MP3 encoder compresses the WAV file so
that it is about one-twelfth the size of the original
digital sound file. The quality is maintained by an
algorithm that optimizes for audio perception, losing data
that will not contribute to perception. The program that
plays the MP3 file is called a player. Some audio products
provide all three programs together as a package.
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