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Pegasus/KrishnaSoft SPS
Pegasus Sound Processing Software (SPS) was developed by KrishnaSoft as
a general purpose audio editor. It features a lossless compresion mode
based on Pegasus' ELS (Entropy Logarithmic Scale) compression algorithm.
The editor itself has very few features and a quite weird interface. It
features a minimalistic and
weird player to play compressed .SDB (sound database, their lossless
format) files, and a batch compression/decompression tool. Being a Win3.1
program, it has no support whatsoever for long file names.
The lossless compression is nothing to get too excited about, it is quite
slow (maybe in part because it is 16-bit code?) and performs worse than
WavPack or FLAC.
But, from the looks of it, it is free - only the lossless compression is
limited to 10 uses, and after that you should buy a license.
The page about SPS at Pegasus is now gone (but still mirrored at the Internet Archive) and it is not being marketed by them
anymore. But you can still find it - and buy it! - at Krishna Software.
Compression performance in my limited test: 57,68% (setting ELS Ultra)
Date: 1998-02-21
Version: 1.0
Interface: Graphical
Platform: Win16
Download: psps.exe - 432kB
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