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Coding Technologies AB was a Swedish technology company that pioneered the use of spectral band replication in Advanced Audio Coding. It is a major provider of audio compression technologies for digital broadcasting.cite-ref-3[3]

• Background

• Technologies

• External links

• References

The company was founded in Stockholm, Sweden, in 1997 by Lars Liljeryd.cite-ref-4[4] A German subsidiary was formed in 2000 as Coding Technologies GmbH (later renamed Dolby Germany GmbH) with support from the research organization Fraunhofer IIS.cite-ref-fhv-1-2[1] The company also had offices in the United States and China.

Coding Technologies was acquired by Dolby Laboratories in 2007 for $250 million in cash.cite-ref-pressrelease-5-0[5] Since then it was renamed to Dolby International AB.

Coding Technologies’ MPEG-2 AAC-derived codec, called aacPlus, was published in 2001 and submitted to the MPEG for standardization. The codec would become the MPEG-4 High-Efficiency AAC (HE-AAC) profile in 2003. XM Satellite Radio used aacPlus for its streams.cite-ref-radiomag-6-0[6] aacPlus with Parametric stereo, called enhanced aacPlus, would become MPEG-4 HE-AACv2. The technology was adopted by Qualcomm in 2004, allowing it to be integrated into wireless handsets.cite-ref-7[7]

Lars Liljeryd, Kristofer Kjörling, and Martin Dietz received the IEEE Masaru Ibuka Consumer Electronics Award in 2013 for their work at Coding Technologies, developing and marketing SBR-based audio coding.cite-ref-ieee-award-2-1[2]cite-ref-ieee-interview-8-0[8]

• Coding Technologies website (expired)

cite-note-fhv-11. "Coding Technologies' Digital Revolution". Fraunhofer Venture. Retrieved 7 July 2015.

cite-note-ieee-award-22. "IEEE Masaru Ibuka Consumer Electronics Award". IEEE.org. Archived from the original on August 3, 2012. Retrieved 7 July 2015.

cite-note-33. ↑ "Orban and Coding Technologies bring MPEG-4 aacPlus audio to Windows Media Players". EE Times. April 24, 2006. Retrieved April 5, 2023.

cite-note-44. ↑ citerefofficeOffice, European Patent. "Lars Liljeryd (Sweden)". www.epo.org. Retrieved 2023-04-04.

cite-note-pressrelease-55. ↑ "Dolby Laboratories to Acquire Coding Technologies". 8 November 2007. Archived from the original on 12 June 2010. Retrieved 25 May 2015.

cite-note-radiomag-66. ↑ "XM Drops PAC for CT-aacPlus". Radio. 14 May 2002. Archived from the original on 26 May 2015. Retrieved 25 May 2015.

cite-note-77. ↑ citerefradioworld2004RadioWorld (2004-03-22). "Qualcomm Chooses Coding Technologies' aacPlus". Radio World. Retrieved 2023-04-04.

cite-note-ieee-interview-88. ↑ "Interview with Martin Dietz, Kristofer Kjörling, and Lars Liljeryd". YouTube. Retrieved 7 July 2015.