MPEG-FAQ 4.0:
Layr_100
From: "Matthias Hanft" <HFT@iis.fhg.de>
Date: Thu, 23 Jun 1994 18:10:28 +0200
Subject: SUN and PC Version of MPEG Audio Codec Shareware
Shareware encoder/decoder for Sun workstations and PC's
The encoder takes about 5 minutes for encoding of 1 minute of stereo audio
data on a SPARC station 10. The decoder works in real time.
Availability of the shareware packages:
- via anonymous ftp from
URL=ftp://fhginfo.fhg.de/pub/layer3/
[153.96.1.4]
You may download our Layer-3 audio software package from the
directory /pub/layer3. You will find the following files:
For IBM PCs:
layer3.txt a short description of the files found in layer3.zip
layer3.zip encoder, decoder, documentation and a sample bitstream
layer3nb.txt a short description of the files found in layer3nb.zip
layer3nb.zip encoder, decoder and documentation (no bitstream)
bitstr.l3 sample bitstream
For SUN workstations:
l3sun.txt a short description of the files found in l3sun.zip
l3sun.zip encoder, decoder, documentation and a sample bitstream
l3sunnb.txt a short description of the files found in l3sunnb.zip
l3sunnb.zip encoder, decoder and documentation (no bitstream)
bitstr.l3 sample bitstream
- via direct modem download (up to 14.400 bps)
Modem telephone number : +49 911 9933662 Name: FHG
Packet switching network: (0) 262 45 9110 10290 Name: FHG
(For the telephone number, replace "+" with your appropriate
international dial prefix, e.g. "011" for the USA.)
Follow the menus as desired.
- via shipment of diskette (only including registration)
You may order a diskette directly from:
Mailbox System Nuernberg (MSN)
Hanft & Hartmann
Innerer Kleinreuther Weg 21
D-90408 Nuernberg
Germany
Please note: MSN will only ship a diskette if they get paid for the
registration fee before. The registration fee is 85 Deutsche Mark
(plus sales tax, if applicable) for one copy of the package. The
preferred method of payment is via credit card. Currently, they can
accept VISA, Master Card / Eurocard / Access credit cards.
You may reach MSN also via Internet: msn@iis.fhg.de
or via Fax: +49 911 9933661
or via BBS: +49 911 9933662 Name: FHG
or via X25: 0262 45 9110 10290 Name: FHG
(e.g. in USA, please replace "+" with "011")
- via email
You may get our shareware also by a direct request to msn@iis.fhg.de.
In this case, the shareware is split into about 30 small uuencoded
parts...
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The file l3v099c_sun.tar is the tarred version of the
shareware ISO-MPEG Audio Layer 3 software only Encoder and Decoder
Version 0.99c for SUN work stations.
copyright Fraunhofer - IIS 1994
(the file l3v099c_sun.tar.gz is compressed with GNU zip)
Here are the highlights of the Layer3 shareware package:
- evaluate highest quality perceptual audio compression technique
available today
- software only encoder and decoder implementations
- implements ISO/MPEG Audio standard ISO/IEC IS 11172-3, Layer 3
(restriction: no support of Layer I and II, no realtime)
- wide range of compression ratios including
6:1 fully transparent quality
11:1 64 kbps per channel, very high quality
16:1 still better than your average 16 bit 44.1 kHz sound card
- music data is input in raw format (16 bit signed integer)
- 44.1kHz sampling frequency (version 1.0 supports also 32 kHz and 48 kHz)
- packed bit stream conforming to ISO/MPEG Layer III
- output of decoder is in raw format (16 bit signed integer)
- optional .WAV header for decoder output data. Resulting music files
can be played with Windows Media Player.
- written by the very same people at Fraunhofer-IIS who did the
Layer 3 codecs for the ISO and CCIR tests (best sound quality at
low bit rates at all listening tests).
- commercial real time products for encoding and/or decoding of
ISO/MPEG Layer 3 auddio are available. Contact one of the companies
listed in the file info.txt.
The package consists of the following files
l3enc encoder program
l3dec decoder program
bitstr.l3 demo layer 3 bitstream (128 kBit/s, stereo, 44.1 kHz)
manual.txt instructions for encoder and decoder programs
register.txt information on registration. PLEASE READ THIS!
info.txt infos on ISO MPEG Layer III and Layer III products
readme.txt this file
The song used for bitstr.l3 is named "funky" and was composed and
arranged by Juergen Herre. "Funky" is copyright Juergen Herre 1994.
You may use "Funky" for all evaluation purposes of this shareware product.
You may not use "Funky" for commercial purposes (e.g. radio broadcasting).
You may also download l3v099cn_sun.tar.Z (l3v099cn_sun.tar.gz) which consists
of all files found in l3v099c_sun.tar (l3v099c_sun.tar.gz) minus bitstr.l3
(Bitstr.l3 is about 1 MB of data for 1 minute of stereo music at 128 kBit/s,
44.1 kHz sampling frequency).
bitstr.l3 is also available seperately.
All brand names are registered trade marks of their respective owners.
--- cut here ---
Regards
Matthias Hanft
--
* Matthias Hanft * FhG-IIS * Am Weichselgarten 3 * D-91058 Erlangen *
* Phone: +49-9131-776-361 *** Fax: 399 *** E-Mail: hanft@iis.fhg.de *
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Subject: MPEG1-IIS
Public C source code for MPEG1 audio decoder available now
The source code for the MPEG1 audio decoder layer 1, 2 and 3 is
now available on fhginfo.fhg.de (153.96.1.4).
There are two files:
mpeg1_iis.tar.Z (Unix: lines seperated by line feed only)
mpeg1iis.zip (PC: lines seperated by carriage return and line feed)
They are in the directory /incoming now but will be moved to the directory
/pub/layer3/public_c.
Please note that the public C code for the decoder is *not* identical to
the shareware provided by Fraunhofer IIS.
However we at Fraunhofer IIS did check that the layer 3 part of the public
C source decoder works correctly. (As usual this does not imply any
warranties).
popp@iis.fhg.de (Harald Popp)