Enhancing MP3 with SBR: Features and Capabilities of the New MP3PRO Algorithm
mp3PRO combines the advantages of a well-known worldwide standard with the potential of Spectral Band Replication (SBR). Using SBR as key technology avoids the usual band width limitation for low bitrate coding, which can be observed with traditional audio codecs like mp3. Enhancing mp3 with SBR results in full audio bandwidth without annoying artifacts, even at bitrates below 64 kbps. In addition, the specific features of SBR allow mp3PRO to be forward andbackward compatible to mp3. mp3PRO single chip solutions from two major chip manufacturers will be available in the first quarter of 2002. The paper discusses the key features of mp3PRO and its compatibility with mp3. Furthermore it will outline the requirements for implementation in soft- and hardware.
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