High-Definition Coding

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Short description: Audio codec

HDC (Hybrid Digital Coding or High-Definition Coding) with SBR (spectral band replication) is a proprietary lossy audio compression codec developed by iBiquity for use with HD Radio. It replaced the earlier PAC codec in 2003.[1][2] In June 2017, the format was reverse engineered and determined to be a variant of HE-AACv1.[3] It uses a modified discrete cosine transform (MDCT) audio coding data compression algorithm.[4]

References

  1. ↑ "Radio and WIreless: AM Bandwidth and Digital Radio". http://www.eskimo.com/~nanook/radio/2007/04/am-bandwidth-and-digital-radio.html. 
  2. ↑ Optimization of high-definition video coding and hybrid fiber-wireless transmission in the 60 GHz band
  3. ↑ "Receiving NRSC-5". http://theori.io/research/nrsc-5-c. 
  4. ↑ Jones, Graham A.; Layer, David H.; Osenkowsky, Thomas G. (2013). National Association of Broadcasters Engineering Handbook: NAB Engineering Handbook. Taylor & Francis. pp. 558–9. ISBN 978-1-136-03410-7. https://books.google.com/books?id=K9N1TVhf82YC&pg=PA558. 




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