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<h1>TwoLAME</h1>
<span id="revnumber">version 0.3.13</span>
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<div id="content">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph"><p>Based on tooLAME by Michael Cheng</p></div>
<div class="paragraph"><p>All changes to the ISO source are licensed under the LGPL
(see COPYING for details)</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>TwoLAME is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.</tt></pre>
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<div class="literalblock">
<div class="content">
<pre><tt>TwoLAME is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.</tt></pre>
</div></div>
<div class="literalblock">
<div class="content">
<pre><tt>You should have received a copy of the GNU Lesser General Public
License along with TwoLAME; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</tt></pre>
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<div class="sect1">
<h2 id="_introduction">INTRODUCTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>TwoLAME is an optimized MPEG Audio Layer 2 (MP2) encoder.
It is based heavily on:</p></div>
<div class="ulist"><ul>
<li>
<p>
tooLAME by Michael Cheng
</p>
</li>
<li>
<p>
the ISO dist10 code
</p>
</li>
<li>
<p>
improvement to algorithms as part of the LAME project (lame.sf.net)
</p>
</li>
<li>
<p>
other contributors (see AUTHORS)
</p>
</li>
</ul></div>
<div class="paragraph"><p>TwoLAME should be able to be used as a drop-in replacement for
LAME (a MPEG Layer 3 encoder). The frontend takes very similar
command line options to LAME, and the backend library has a very
similar API to LAME.</p></div>
<div class="paragraph"><p>For the latest version of TwoLAME, visit the project homepage:
<a href="http://www.twolame.org/">http://www.twolame.org/</a></p></div>
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<div class="sect1">
<h2 id="_mpeg_audio_layer_2_mp2">MPEG Audio Layer 2 (MP2)</h2>
<div class="sectionbody">
<div class="paragraph"><p>(taken from Wikipedia article on MP2)</p></div>
<div class="paragraph"><p>MP2 (sometimes incorrectly named Musicam) is a short form of MPEG Audio Layer II,
and it is also used as a file extension for files containing audio data of this
type. While it has largely been superseded by MP3 for PC and Internet applications,
it remains a dominant standard for audio broadcasting as part of the DAB digital
radio and DVB digital television standards. It is also used internally within the
radio industry, for example in NPR’s PRSS Content Depot programming distribution
system.</p></div>
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<div class="sect1">
<h2 id="_installation">INSTALLATION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Standard automake process:</p></div>
<div class="literalblock">
<div class="content">
<pre><tt>./configure
make
make install</tt></pre>
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<div class="sect1">
<h2 id="_reference_papers">REFERENCE PAPERS</h2>
<div class="sectionbody">
<div class="paragraph"><p>(Specifically Layer II Papers)</p></div>
<div class="paragraph"><p>Kumar, M & Zubair, M., A high performance software implementation of mpeg audio
encoder, 1996, ICASSP Conf Proceedings (I think)</p></div>
<div class="paragraph"><p>Fischer, K.A., Calculation of the psychoacoustic simultaneous masked threshold
based on MPEG/Audio Encoder Model One, ICSI Technical Report, 1997
<a href="ftp://ftp.icsi.berkeley.edu/pub/real/kyrill/PsychoMpegOne.tar.Z">ftp://ftp.icsi.berkeley.edu/pub/real/kyrill/PsychoMpegOne.tar.Z</a></p></div>
<div class="paragraph"><p>Hyen-O et al, New Implementation techniques of a real-time mpeg-2 audio encoding
system. p2287, ICASSP 99.</p></div>
<div class="paragraph"><p>Imai, T., et al, MPEG-1 Audio real-time encoding system, IEEE Trans on Consumer
Electronics, v44, n3 1998. p888</p></div>
<div class="paragraph"><p>Teh, D., et al, Efficient bit allocation algorithm for ISO/MPEG audio encoder,
Electronics Letters, v34, n8, p721</p></div>
<div class="paragraph"><p>Murphy, C & Anandakumar, K, Real-time MPEG-1 audio coding and decoding on a DSP
Chip, IEEE Trans on Consumer Electronics, v43, n1, 1997 p40</p></div>
<div class="paragraph"><p>Hans, M & Bhaskaran, V., A compliant MPEG-1 layer II audio decoder with 16-B
arithmetic operations, IEEE Signal Proc Letters v4 n5 1997 p121</p></div>
</div>
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<div id="footnotes"><hr /></div>
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Version 0.3.13<br />
Last updated 2011-01-01 19:15:01 GMT
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