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Lossless comparison
niedziela, 05 wrzesień 2010
The following table compares the performance of most of the popular lossless compressors.


All tests were run on a 1.2 AMD Athlon with 128mb of ram under Windows 2000.

Results based on a sample of 3 songs representing a wide spectrum of music:

* George Winston - Early Morning Range (soft piano music) (2:59)
* Pantera – F***ing Hostile (hard rock) (2:48)
* Beatles – Something (pop) (3:01)

Note: several "second-tier" lossless compressors have been excluded from this comparison because they are no longer being developed and they don't really compare with the ones listed. These include WaveArc, WaveZip, and Perfect Clarity Audio, and a few others.

* Efficiency tries to evaluate the trade-off between speed and compression. The idea is to analyze how much "bang" you get for the time you wait while compressing. If you wait a long time but don't get good compression, that's poor efficiency. If it goes super fast, but you don't get hardly any compression, that's bad efficiency too. The idea is to try to strike a good balance between speed and compression. Obviously, rating efficiency is somewhat subjective because it depends on how long you're willing to wait for extra space savings... hopefully you'll agree that this equation is at least somewhat fair. (Mathematically, efficiency can be described: [Efficiency] = ([MB Saved]16 / [Seconds])(1/16) )
Last Updated ( niedziela, 05 wrzesień 2010 )
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