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Pegasus/KrishnaSoft Sound Processing Software
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 strange interface. It
includes a minimalistic and
weird player to play compressed .SDB (sound database, their lossless
format) files; and a batch compression/decompression tool. Being a Windows
3.1 program it has no support for long file names.
The lossless compression performance is nothing to get 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 need to buy a license.
The page about SPS at Pegasus is now gone (but still mirrored at the Internet Archive) and it seems that Pegasus themselves
vanished. 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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