Spectral Band Replication


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Spectral Band Replication

(audio, compression)
(SBR) Guessing the nontransmitted higher frequency range of a compressed audio file by some helper bits (transmiited with the stream) and the transmitted base band. SBR allows a restoration (not reconstruction) of the upper frequency range without lots of bits. It was developed by Coding Technology, and is useful for medium and high quality coding at low and medium data rates. It is used by Digital Radio Mondiale and MP3 Pro.
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References in periodicals archive ?
aacPlus v1 is a superset of AAC that adds Spectral Band Replication (SBR), a unique bandwidth extension technique that enables audio codecs to deliver the same quality at half the bit rate.
We explain enhancements to both AAC including Spectral Band Replication (SBR), Parametric Stereo and Scalable Lossless Coding.
264 Advanced Video Coding (AAC), Real Networks, Windows Media and Quicktime, VoD and IP multicasting, FttH, FttC, HFC, ADSL and WiMAX, MP3, Spectral Band Replication (SBR), Parametric Stereo and Scalable Lossless Coding, HILN, MPEG-7 metadata and MPEG-21 digital rights management standards (DRM).

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