The Data Compression News Blog

Your daily update on the most recent compression techniques, algorithms, patents, products, tools and events.

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  • Bijective BWT (2 Comments)

    David Scott has written a bijective BWT transform, which brings all the advantages of bijectiveness to BWT based compressors. Among other things, making BWT more suitable for compression-before-encryption and also give (slightly) better compression.

  • Asymmetric Binary System (107 Comments)

    Jarek Duda’s “Asymmetric Binary System” promises to be an alternate to arithmetic coding, having all the advantages, but being much simpler. Matt has coded a PAQ based compressor using ABS for back-end encoding. Update: Andrew Polar has written an alternate implementation of ABS.

  • Precomp: More Compression for your Compressed Files

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them. Christian Schneider’s Precomp comes to rescue by undoing the harm.

  • On2 Technologies is Hiring

    There aren’t too many companies working on cutting edge codecs, and of those few this one is hiring. Best of luck.

  • China’s AVS Specifications Available (2 Comments)

    Its old news that China has developed their own Advanced Video Standard to avoid high licensing fees. English translation of the standard is now available, along with the IPR policy. Finally something technical that you can get your hands on to feed your appetite.

MPEG Audio Header Program

Posted by Mark Nelson on 30th November 2005 | Permanent Link

This article by Konrad Windszus was posted last year. It has a detailed explanation of the layout of the MPEG audio frame header, along with source code, caveats, and inconsistencies. Konrad just posted version 2.1 of his analysis program, along with some additional information and a few fixes to the article itself.

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This entry was posted on Wednesday, November 30th, 2005 at 9:06 am by Mark Nelson. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.