+ Codec - performs the encoding and decoding of the raw audio data
+ uncompressed file formats - WAV, AIFF, AU and PCM
+ Lossless compression file formats - FLAC, APE, WV, SHORTEN, TTA, ATRAC, apple lossless, MPEG-4, WMA
+ Lossy compression - MP3, Vorbis, musepack, AAC, ATRAC, Lossy WMA
+ Uncompressed is used for storing origianl sound recordings as they store most combinations of sampling rates and bitrates
+ Lossless compression file format has a longer process time than uncompressed file formats but they are more efficient on space usage
+ MPEG Layer-3 format is the most popular format for downloading and storing music. By eliminating portions of the audio file that are less audible, mp3 files are compressed to roughly one-tenth the size of an equivalent PCM file sacrificing quality.
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