RealAudio 28.8: Difference between revisions

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RealNetworks' 28.8 kbits/sec codec.  Actual data rate is 15.2 kbits/sec.  Variant of ITU-T G.728.
RealNetworks' 28.8 kbits/sec codec.  Actual data rate is 15.2 kbits/sec.  Variant of ITU-T G.728.
RealAudio uses a reduced-bitrate variant of G.728.  The original G.728 [http://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-G.728-199209-I!!PDF-E&type=items specification] and [ftp://svr-ftp.eng.cam.ac.uk/pub/comp.speech/coding/ldcelp-2.0.tar.gz source code] are available. RealPlayer appears to be based on this implementation as the function names match those in the [http://wwwa2.kph.uni-mainz.de/ftp/pub/machines/linux/multimedia/v50b3_linux20elf.tar.gz RealPlayer 5 beta]. [[FFmpeg|FFmpeg's]] decoder is based on a different implementation.
[[Category:Audio Codecs]]
[[Category:Vocoders]]

Latest revision as of 20:35, 23 July 2008


RealNetworks' 28.8 kbits/sec codec. Actual data rate is 15.2 kbits/sec. Variant of ITU-T G.728.

RealAudio uses a reduced-bitrate variant of G.728. The original G.728 specification and source code are available. RealPlayer appears to be based on this implementation as the function names match those in the RealPlayer 5 beta. FFmpeg's decoder is based on a different implementation.