95 lines
3.1 KiB
Plaintext
95 lines
3.1 KiB
Plaintext
TwoLAME
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=======
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Based on tooLAME by Michael Cheng
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All changes to the ISO source are licensed under the LGPL
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(see COPYING for details)
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TwoLAME is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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TwoLAME is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with TwoLAME; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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INTRODUCTION
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------------
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TwoLAME is an optimized MPEG Audio Layer 2 (MP2) encoder.
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It is based heavily on:
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- tooLAME by Michael Cheng
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- the ISO dist10 code
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- improvement to algorithms as part of the LAME project (lame.sf.net)
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- other contributors (see AUTHORS)
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TwoLAME should be able to be used as a drop-in replacement for
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LAME (a MPEG Layer 3 encoder). The frontend takes very similar
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command line options to LAME, and the backend library has a very
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similar API to LAME.
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For the latest version of TwoLAME, visit the project homepage:
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http://www.twolame.org/
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MPEG Audio Layer 2 (MP2)
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------------------------
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(taken from Wikipedia article on MP2)
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MP2 (sometimes incorrectly named Musicam) is a short form of MPEG Audio Layer II,
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and it is also used as a file extension for files containing audio data of this
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type. While it has largely been superseded by MP3 for PC and Internet applications,
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it remains a dominant standard for audio broadcasting as part of the DAB digital
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radio and DVB digital television standards. It is also used internally within the
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radio industry, for example in NPR's PRSS Content Depot programming distribution
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system.
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INSTALLATION
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------------
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Standard automake process:
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./configure
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make
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make install
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REFERENCE PAPERS
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----------------
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(Specifically Layer II Papers)
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Kumar, M & Zubair, M., A high performance software implementation of mpeg audio
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encoder, 1996, ICASSP Conf Proceedings (I think)
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Fischer, K.A., Calculation of the psychoacoustic simultaneous masked threshold
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based on MPEG/Audio Encoder Model One, ICSI Technical Report, 1997
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ftp://ftp.icsi.berkeley.edu/pub/real/kyrill/PsychoMpegOne.tar.Z
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Hyen-O et al, New Implementation techniques of a real-time mpeg-2 audio encoding
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system. p2287, ICASSP 99.
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Imai, T., et al, MPEG-1 Audio real-time encoding system, IEEE Trans on Consumer
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Electronics, v44, n3 1998. p888
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Teh, D., et al, Efficient bit allocation algorithm for ISO/MPEG audio encoder,
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Electronics Letters, v34, n8, p721
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Murphy, C & Anandakumar, K, Real-time MPEG-1 audio coding and decoding on a DSP
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Chip, IEEE Trans on Consumer Electronics, v43, n1, 1997 p40
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Hans, M & Bhaskaran, V., A compliant MPEG-1 layer II audio decoder with 16-B
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arithmetic operations, IEEE Signal Proc Letters v4 n5 1997 p121
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