Constrained Energy Lapped Transform
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Constrained Energy Lapped Transform (CELT) is an open, royalty-free lossy audio compression format and a free software codec with especially low algorithmic delay for use in low-latency audio communication. The algorithms are openly documented and may be used free of software patent restrictions. Development of the format was maintained by the Xiph.Org Foundation (as part of the Ogg codec family) and later coordinated by the Opus working group of the Internet Engineering Task Force (IETF).
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Vinony's link graph records 306 inbound references to Constrained Energy Lapped Transform, and connects out to Q188199, ProRes 422 and data compression.
Vinony files it under Free audio codecs, Speech codecs and Xiph.Org projects.
Vinony links it to 6 Wikipedia language editions.
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Encyclopedic overview
7 sectionsContents
- Properties
- Technology
- History
- Software
- See also
- References
- External links
Constrained Energy Lapped Transform (CELT) is an open, royalty-free lossy audio compression format and a free software codec with especially low algorithmic delay for use in low-latency audio communication. The algorithms are openly documented and may be used free of software patent restrictions. Development of the format was maintained by the Xiph.Org Foundation (as part of the Ogg codec family) and later coordinated by the Opus working group of the Internet Engineering Task Force (IETF).
CELT was meant to bridge the gap between Vorbis and Speex for applications where both high quality audio and low delay are desired. It is suitable for both speech and music. It borrows ideas from the CELP algorithm, but avoids some of its limitations by operating in the frequency domain exclusively.
Excerpted from Wikipedia’s “Constrained Energy Lapped Transform” article, available under the CC BY-SA 4.0 licence.