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  • Bijective BWT (7 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 (116 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 (3 Comments)

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them.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.

Recreating Audio Compression Loss for iPod

Posted by Sachin Garg on 1st February 2006 | Permanent Link

TARGUS Australia has released two addons for iPod and iPod mini.

The devices are described as:

Two neat little devices that enhance iPod and iPod mini musical output, expanding the musical envelope and providing three-dimensional sound, release sounds that are trapped in the compression process, revealing instruments and voices from the original recordings that could not previously be heard and putting back the rich tones and spatial orientation of live music.

Some time back, we talked about soundcards from Creative which advertised similar features.

To quote again from discussion there, lost information is lost, recreating might help improving perceived quality a bit but it can never be as good as original. Lossless audio compression is the way to go.

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