Coding Technologies

CT-aacPlus
Coding Technologies AB was a Swedish technology company that pioneered the use of spectral band replication in Advanced Audio Coding.wikipedia
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Spectral band replication

SBRMPEG-4 V3 SBR
Coding Technologies AB was a Swedish technology company that pioneered the use of spectral band replication in Advanced Audio Coding.
A Swedish company, Coding Technologies (acquired by Dolby in 2007), developed and pioneered the use of SBR in its MPEG-2 AAC derived codec called aacPlus, which first appeared in 2001.

High-Efficiency Advanced Audio Coding

eAAC+eAACHE-AAC
The codec would become the MPEG-4 High-Efficiency AAC (HE-AAC) profile in 2003.
The progenitor of HE-AAC was developed by Coding Technologies under the trade name CT-aacPlus.

XM Satellite Radio

XMXM RadioFred
XM Satellite Radio used aacPlus for its streams.
Audio channels on XM were digitally compressed using the CT-aacPlus (HE-AAC) codec from Coding Technologies for most channels, and the AMBE codec from Digital Voice Systems for some voice channels, including all of the Traffic and Weather channels.

Mp3PRO

very old software encoder/player
The technology behind SBR was developed by the former Swedish company Coding Technologies AB (acquired by Dolby Laboratories in 2007) in the late 1990s.

IEEE Masaru Ibuka Consumer Electronics Award

IEEE Consumer Electronics AwardMasaru Ibuka Consumer Electronics Technical Field Award
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.

Aktiebolag

ABlimited company(publ)
Coding Technologies AB was a Swedish technology company that pioneered the use of spectral band replication in Advanced Audio Coding.

Sweden

🇸🇪SwedishSWE
Coding Technologies AB was a Swedish technology company that pioneered the use of spectral band replication in Advanced Audio Coding. The company was founded in Stockholm, Sweden, in 1997 by Lars Liljeryd.

Advanced Audio Coding

AACAAC/AAC+/eAAC+.aac
Coding Technologies AB was a Swedish technology company that pioneered the use of spectral band replication in Advanced Audio Coding.

MPEG-2

MPEG2DVDH.262 / MPEG-2 Part 2 video
Its MPEG-2 AAC-derived codec, called aacPlus, was published in 2001 and submitted to the MPEG for standardization.

Moving Picture Experts Group

MPEGMPEG VideoISO/IEC JTC 1/SC 29/WG 11
Its MPEG-2 AAC-derived codec, called aacPlus, was published in 2001 and submitted to the MPEG for standardization.

MPEG-4

MPEG44MP4
The codec would become the MPEG-4 High-Efficiency AAC (HE-AAC) profile in 2003.

Parametric Stereo

PSParametric Stereo (PS)
aacPlus with Parametric stereo, called enhanced aacPlus, would become MPEG-4 HE-AACv2.

Dolby Laboratories

DolbyDolby VisionDolby Labs
Coding Technologies was acquired by Dolby Laboratories in 2007 for $250 million in cash.

Stockholm

Stockholm, Swedencity of Stockholmcapital
The company was founded in Stockholm, Sweden, in 1997 by Lars Liljeryd.

Gesellschaft mit beschränkter Haftung

GmbHLimited liability companygGmbH
A German subsidiary was formed in 2000 as Coding Technologies GmbH with support from the research organization Fraunhofer IIS.

Fraunhofer Society

FraunhoferFraunhofer InstituteFraunhofer IIS
A German subsidiary was formed in 2000 as Coding Technologies GmbH with support from the research organization Fraunhofer IIS.

United States

American🇺🇸U.S.
The company also had offices in the United States and China.

China

🇨🇳ChinesePeople's Republic of China
The company also had offices in the United States and China.

Audio coding format

audio coding standardaudio compression formatAudio coding

Enhanced Versatile Disc

EVD
The audio codec was to come from Coding Technologies and was called the EAC (Enhanced Audio Codec) 2.0.

Altacast

Oddcast
MP3, AAC and AAC+ support can be added via the LAME encoder (lame_enc.dll), FAAC encoder (libFAAC.dll), and CT-aacPlus encoder (enc_aacplus.dll obtainable from Winamp 5.61) respectively.

XM HD Surround

The bitrate for XMHD surround broadcasts is ~70 kbit/s using aacPlus from Coding Technologies.