Difference between revisions of "CELT"

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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 as CELT while not exceeding CELT performance for music (for speech [[Opus]] suits better, due to [[SILK]]).
+
Unfortunately [[Opus]] contains about twice as much code as CELT and takes about twice as much CPU while not exceeding CELT performance for music (for speech [[Opus]] suits better, due to [[SILK]]).
  
 
See e.g. a comparison done under fall 2012: http://www.hydrogenaudio.org/forums/index.php?showtopic=97913&st=0.
 
See e.g. a comparison done under fall 2012: http://www.hydrogenaudio.org/forums/index.php?showtopic=97913&st=0.

Latest revision as of 03:05, 25 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 and takes about twice as much CPU while not exceeding CELT performance for music (for speech Opus suits better, due to SILK).

See e.g. a comparison done under fall 2012: http://www.hydrogenaudio.org/forums/index.php?showtopic=97913&st=0.

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 unfortunate that standardization of CELT on itself did not complete (https://tools.ietf.org/html/draft-valin-celt-codec-02).

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