CELT: Difference between revisions
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It is deprecated in favor of [[Opus]] which CELT became a part of. | It is deprecated in favor of [[Opus]] which CELT became a part of. | ||
Unfortunately Opus contains about twice as much code while | Unfortunately Opus contains about twice as much code as CELT while not exceeding CELT performance for music. | ||
See e.g. a comparison done under fall 2012: http://www.hydrogenaudio.org/forums/index.php?showtopic=97913&st=0 (for speech Opus performs better, due to [[SILK]]). | |||
For archiving of music, especially for possible playback on resource-constrained devices CELT has thus a value on its own, not necessarily as a part of Opus. | |||
It is a loss that standardization of CELT on itself did not complete (https://tools.ietf.org/html/draft-valin-celt-codec-02). | |||
== Links == | == Links == | ||
* http://www.celt-codec.org/ | * http://www.celt-codec.org/ | ||
Revision as of 10:50, 24 March 2013
Constrained-Energy Lapped Transform (CELT) Codec. Experimental low-delay wide-band audio codec from the creator of Speex.
It is deprecated in favor of Opus which CELT became a part of.
Unfortunately Opus contains about twice as much code as CELT while not exceeding CELT performance for music.
See e.g. a comparison done under fall 2012: http://www.hydrogenaudio.org/forums/index.php?showtopic=97913&st=0 (for speech Opus performs better, due to SILK).
For archiving of music, especially for possible playback on resource-constrained devices CELT has thus a value on its own, not necessarily as a part of Opus.
It is a loss that standardization of CELT on itself did not complete (https://tools.ietf.org/html/draft-valin-celt-codec-02).