High-Definition Coding
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. In June 2017, the format was reverse engineered and determined to be a variant of HE-AACv1. It uses a modified discrete cosine transform (MDCT) audio coding data compression algorithm.
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
[edit]- ^ "Radio and WIreless: AM Bandwidth and Digital Radio". Archived from the original on 2008-06-07. Retrieved 2007-10-07.
- ^ Optimization of high-definition video coding and hybrid fiber-wireless transmission in the 60 GHz band
- ^ "Receiving NRSC-5". Theori. Archived from the original on 20 August 2017. Retrieved 14 April 2018.
- ^ 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.
External links
[edit]- News story about switch to HDC Archived 2007-03-02 at the Wayback Machine
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