CELT (Code-Excited Lapped Transform) is an
ultra-low delay audio codec
designed for realtime transmission of high quality
speech and audio.
This is meant to close the gap between traditional
speech codecs (such
as Speex) and traditional audio codecs (such as
Vorbis).
License: BSD License (revised)
Changes:
This release includes simplifications to the bit allocation code, and includes a new low-complexity mode that can be enabled (without breaking compatibility) on the encoder side. There are several other optimizations and bugfixes included. The API has been slightly modified, so code using CELT will have to be updated (minor).