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mus/misc/mpeg1_iis.lha

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Short:MPEG audio decoder w/ source; supports layer I-III
Author: kai_rode at pluribus.wupper.de
Uploader:kai_rode pluribus wupper de
Type:mus/misc
Architecture:m68k-amigaos
Date:1995-03-03
Download:mus/misc/mpeg1_iis.lha - View contents
Readme:mus/misc/mpeg1_iis.readme
Downloads:575

This is a no-changes port of the Fraunhofer Institute MPEG audio decoder,
Version 4.1. It supports compression layers 1-3.

The MPEG-audio compression standard provides exceptional compression
ratios for audio samples of 32 KHz (DAT-LP), 44.1 KHz (CD) and 48 KHz
(DAT-SP). The only disadvantage of MPEG-compression is the sloooow
speed. This decoder takes 1:28 minutes on a A4000/040/28(WARP) to
decompress the included example which is a 15-second mono sample in
CD-Quality (44.1 KHz).

Included is the full sourcecode, three executables (68000/FFP, 68020/IEEE
and 68040/internal FPU) and an example file compressed using layer 2
compression.

Suggested way for playing MPEG-samples on the amiga:

Decoding using this program:

- Start decode0x0
- Type the name of the compressed sample (eg. foobar.mp2)
- Type the name for the decompressed sample (foobar.sw)
- Type "n" twice

Converting using AmiSOX:

- Type "sox -r 44100 foobar.sw foobar.wav"

Playing using Play16:

- Type "play16 foobar.wav fast hifi"

This way, you can listen to the samples in 14-bit-quality, which you cant if
you convert to 8SVX.

If you want more MPEG-files, try: http://www.iuma.com

This is the adress of the Internet Underground Music Archive, which contains
many freely distributable pieces of high quality music. The example file
is also from there.


Contents of mus/misc/mpeg1_iis.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                12859   49697  25.9% -lh5- 1c0a Aug 11  1994 mpeg1_iis/common.c
[generic]                 4918   19504  25.2% -lh5- b76a Aug 11  1994 mpeg1_iis/common.h
[generic]                12285   53765  22.8% -lh5- 4e92 Aug 11  1994 mpeg1_iis/decode.c
[generic]                27346   46028  59.4% -lh5- 3e9a Feb 22  1995 mpeg1_iis/decode000
[generic]                29408   49780  59.1% -lh5- 7d72 Feb 22  1995 mpeg1_iis/decode020
[generic]                28099   46628  60.3% -lh5- 5b59 Feb 22  1995 mpeg1_iis/decode040
[generic]                 1923    7935  24.2% -lh5- 319f Aug 11  1994 mpeg1_iis/decoder.h
[generic]                 3138   10827  29.0% -lh5- 933f Aug 11  1994 mpeg1_iis/huffman.c
[generic]                  925    2432  38.0% -lh5- 3adb Aug 11  1994 mpeg1_iis/huffman.h
[generic]                 6556   23709  27.7% -lh5- c34c Aug 11  1994 mpeg1_iis/musicout.c
[generic]                  666    1281  52.0% -lh5- e1d0 Aug 12  1994 mpeg1_iis/readme
[generic]                  786    1483  53.0% -lh5- cd8d Feb 22  1995 mpeg1_iis/readme.amiga
[generic]                  165     302  54.6% -lh5- 9b87 Feb 22  1995 mpeg1_iis/SCOPTIONS
[generic]                   96     243  39.5% -lh5- 45ee Feb 22  1995 mpeg1_iis/smakefile
[generic]                   84     157  53.5% -lh5- 577e Aug 11  1994 mpeg1_iis/tables/1cb0
[generic]                   87     164  53.0% -lh5- 5ff9 Aug 11  1994 mpeg1_iis/tables/1cb1
[generic]                   84     150  56.0% -lh5- 3e85 Aug 11  1994 mpeg1_iis/tables/1cb2
[generic]                  950    2038  46.6% -lh5- b5e9 Aug 11  1994 mpeg1_iis/tables/1th0
[generic]                  913    1960  46.6% -lh5- f4a1 Aug 11  1994 mpeg1_iis/tables/1th1
[generic]                  913    1960  46.6% -lh5- f4a1 Aug 11  1994 mpeg1_iis/tables/1th2
[generic]                   93     171  54.4% -lh5- b0b2 Aug 11  1994 mpeg1_iis/tables/2cb0
[generic]                   92     171  53.8% -lh5- 4c3c Aug 11  1994 mpeg1_iis/tables/2cb1
[generic]                   89     157  56.7% -lh5- e7e3 Aug 11  1994 mpeg1_iis/tables/2cb2
[generic]                 1177    2480  47.5% -lh5- 612a Aug 11  1994 mpeg1_iis/tables/2th0
[generic]                 1140    2398  47.5% -lh5- d81e Aug 11  1994 mpeg1_iis/tables/2th1
[generic]                 1211    2526  47.9% -lh5- 82a4 Aug 11  1994 mpeg1_iis/tables/2th2
[generic]                  813    5511  14.8% -lh5- aa72 Aug 11  1994 mpeg1_iis/tables/absthr_0
[generic]                  730    6413  11.4% -lh5- 2bb1 Aug 11  1994 mpeg1_iis/tables/absthr_1
[generic]                  703    6507  10.8% -lh5- ea34 Aug 11  1994 mpeg1_iis/tables/absthr_2
[generic]                  815    4234  19.2% -lh5- 63b4 Aug 11  1994 mpeg1_iis/tables/alloc_0
[generic]                  846    4408  19.2% -lh5- d7f8 Aug 11  1994 mpeg1_iis/tables/alloc_1
[generic]                  258    1094  23.6% -lh5- 5ef5 Aug 11  1994 mpeg1_iis/tables/alloc_2
[generic]                  335    1519  22.1% -lh5- f950 Aug 11  1994 mpeg1_iis/tables/alloc_3
[generic]                 3498   10621  32.9% -lh5- 14b9 Aug 11  1994 mpeg1_iis/tables/dewindow
[generic]                 3244   10621  30.5% -lh5- c83a Aug 11  1994 mpeg1_iis/tables/enwindow
[generic]                 3726   18948  19.7% -lh5- f74d Aug 11  1994 mpeg1_iis/tables/huffdec
[generic]               184391  190277  96.9% -lh5- eede Feb 22  1995 Sounds/mpg/excerpt-Love_Supreme.mp2
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        37 files  335362  588099  57.0%            Mar  3  1995
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