transparent audio coding A {lossy audio compression} {algorithm} is transparent if the original and decoded signal are indistinguishable to the human ear. The bit rate depends on the {codec} and the audio material. Some codecs (e.g. {AAC}, {MP3}) are optimized for transparent coding at a low data rate, others (e.g. {VQF}, {MP3Pro}, {AAC}+{SBR}, {WMA}) for distinguisable but pleasant reproduction at lower bit rates. Typical data rates in {kbps} for different codecs are: MP1 288-320 MP2 224-256 MP3 160-224 MPEG-2 AAC 128-160 MPEG-4 AAC 112-144 MPEGplus 160-200 (2001-12-23)
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