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util/pack/shorten1_22.lha

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Short:High Compression ratio for SAMPLES/MODS
Author: marcocci at cli.di.unipi.it
Uploader:Gianluca Marcoccia (marcocci cli di unipi it)
Type:util/pack
Architecture:m68k-amigaos
Date:1995-04-19
Download:util/pack/shorten1_22.lha - View contents
Readme:util/pack/shorten1_22.readme
Downloads:1184

                                Shorten v1.22
              A High Compression ratio utility for SAMPLES/MODULES
                     Copyright 1992-1995 Tony Robinson


This program uses a special prediction algorithm to predeterminate how
the waveform will evolve and then a specially tailored huffman algorithm
to compress the residuals.

The compression so achieved can reach 2:1 ratio, which is far better
than that of general purpose compessors as PKZIP, LHA, etc...

I started rewriting some pieces of code in optimized ASM code, but I
decided I would release this version (which is working quite nicely
already) in order to see how many people were interested in this piece
of software.

IF I WILL GET ENOUGH DEMAND, I might provide a MUCH faster version of
this, and even a xpk library containing optimized code.

This port of this piece of software is E-Mail-Ware, this is a new
conception of freeware: if you use it, and if you have access to a
place where you can send E-Mail, send me a mail, telling me what you
like and dis-like about this. (even just 'I am using it' will suffice)

Versions for 68000/020/040/881 supplied. *math coprocessor highly suggested*


Contents of util/pack/shorten1_22.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 1784    3405  52.4% -lh5- c4d8 Apr 17  1995 Shorten-1.22/AMIGA.README
[generic]                 2858    6274  45.6% -lh5- c272 Jan 10  1995 Shorten-1.22/doc/change.log
[generic]                  538     936  57.5% -lh5- 6061 Jan 10  1995 Shorten-1.22/doc/LICENSE
[generic]                 4286   10190  42.1% -lh5- 2cce Jan  6  1995 Shorten-1.22/doc/shorten.1
[generic]                 4730   11864  39.9% -lh5- 26ab Jan 10  1995 Shorten-1.22/doc/shorten.man
[generic]                54662  146942  37.2% -lh5- e1ca Jan  3  1995 Shorten-1.22/doc/tr156.ps
[generic]                12940   33801  38.3% -lh5- 8e66 Jan  3  1995 Shorten-1.22/doc/tr156.tex
[generic]                20732   47044  44.1% -lh5- 205a Apr 17  1995 Shorten-1.22/shorten000
[generic]                20042   44280  45.3% -lh5- 86e8 Apr 17  1995 Shorten-1.22/shorten020
[generic]                15118   32268  46.9% -lh5- 8ae3 Apr 17  1995 Shorten-1.22/shorten881
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        10 files  137690  337004  40.9%            Apr 18  1995
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