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<title>The CELT ultra-low delay audio codec: Documentation</title>
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<h1>Documentation</h1>
<h2>Manual</h2>
<p>
Unfortunately, there is no formal manual for CELT yet. However, you can find some information about it:
<ul>
<li>The <a href="http://git.xiph.org/?p=celt.git;a=blob;f=README;hb=HEAD">README file</a> distributed with libcelt</a>
<li>On <a href="http://jmspeex.livejournal.com/">Jean-Marc Valin's blog</a></li>
<li>The celt-codec.org <a href="../presentations/">presentations page</a></li>
</ul>
</p>
<h2><abbr title="Application Programming Interface">API</abbr> Reference</h2>
<p>
The CELT <abbr title="Application Programming Interface">API</abbr>
Reference Manual provides information on programming with libcelt.
</p>
<ul>
<li><a href="API.pdf">libcelt API</a></li>
<li><a href="devel.pdf">internal API</a> (only useful for developing CELT itself)</li>
</ul>
<h2>Papers</h2>
<p>
The first paper describes version 0.3.2 of the codec, while the second describe the low-complexity mode of version 0.5.1. While there are minor differences with the current version (mostly with the bit allocation), most of the paper is still valid.
<ul>
<li>J.-M. Valin, T. B. Terriberry, C. Montgomery, G. Maxwell, <a href="http://people.xiph.org/~jm/papers/celt_tasl.pdf">A High-Quality Speech and Audio Codec With Less Than 10 ms delay</a>, <i>To appear in IEEE Transactions on Audio, Speech and Language Processing</i>, 2009.
</li>
<li>J.-M. Valin, T. B. Terriberry, G. Maxwell, <a href="http://people.xiph.org/~jm/papers/celt_eusipco2009.pdf">A Full-Bandwidth Audio Codec with Low Complexity and Very Low Delay</a>, <i>Proc. EUSIPCO</i>, 2009 (<a href="celt_eusipco09_slides.pdf">slides</a>).
</li>
</ul>
</p>
<p>
<h2>Third-party resources</h2>
<ul>
<li><a href="http://en.wikipedia.org/wiki/CELT">English Wikipedia article</a>, <a href="http://fr.wikipedia.org/wiki/CELT">French Wikipedia article</a></li>
</ul>
</p>
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