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—The CELT codec has been merged into the IETF Opus codec and is now obsolete—

Documentation

Manual

Unfortunately, there is no formal manual for CELT yet. However, you can find some information about it:

API Reference

The CELT API Reference Manual provides information on programming with libcelt.

Papers

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.

Third-party resources

—The CELT codec has been merged into the IETF Opus codec and is now obsolete—