Product category: Embedded Software and Operating Systems
News Release from: Coding Technologies | Subject: AacPlus
Edited by the Electronicstalk Editorial Team on 17 July 2007
Codec comes first in broadcasting trial
The EBU found that the aacPlus audio codec is the only one capable of delivering superior surround audio across a wide range of bitrates
The European Broadcasting Union has named the Coding Technologies MPEG-4 aacPlus audio codec as a clear winner in its recent multichannel audio test. The EBU found that the codec is the only one capable of delivering superior surround audio across a wide range of bitrates; all broadcasting applications, including mobile, SD (standard definition), and HD (high definition) TV.
This article was originally published on Electronicstalk on 17 July 2007 at 8.00am (UK)
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This is Coding Technologies' second listening test victory with the highly regarded EBU.
In a previous 2003 stereo comparison, aacPlus outperformed each and every other codec in the test field.
The multichannel audio system and quality evaluation test carried out by EBU is a stringent, independently run blind listening test which compares the audio quality and performance of audio codecs across the market place.
The listening test determined that aacPlus, at bit rates between 128 and 192Kbit/s, outperformed all other surround sound codecs in terms of efficiency, while scoring overall audio quality results in the 'excellent' range.
This remarkable level of audio quality was only reached by its competitors while operating at twice the bit rate and above.
Further reading
Music platform uses efficient audio format
Loudeye is deploying Coding Technologies MPEG-4 aacPlus audio format into its mobile music platform as an option for operators worldwide
Codec cuts Internet radio bitrate
Digitally Imported Radio (DI) has added aacPlus streams to its free radio service
Motorola licenses compression technology
Motorola has entered into a patent license agreement with specialist audio-processing company
Additionally, a corresponding workshop held by the EBU revealed that aacPlus multichannel audio encoding is now fully capable of handling and utilising Dolby metadata.
Coding Technologies' aacPlus codec represents a breakthrough in audio compression efficiency that delivers high fidelity stereo and multichannel audio at far lower bit rates than previously thought possible.
Broadcasters deploying aacPlus achieve extremely high quality audio while gaining considerable reductions in bandwidth requirements.
For example, HD broadcasters can deliver crystal clear 5.1 surround sound in as little as 160Kbit/s while SD broadcasters can deliver excellent quality stereo at 48Kbit/s.
'It is a new day in the digital TV world', says Stefan Meltzer, Vice President Business Development, Coding Technologies.
'Coding Technologies is very pleased that independent test results now provide conclusive proof of the value aacPlus puts in the hands of broadcasters, operators and media providers looking to provide a better listening experience to their customers, while reducing their own system requirements'.
aacPlus is an MPEG-4 standardised audio codec.
It is the combination of the industry standards AAC (Advanced Audio Coding) and Coding Technologies' SBR (spectral band replication) and PS (parametric stereo) compression methods.
Much of the strength in aacPlus comes from the synergies it creates between broadcasters, device manufacturers, network operators and end users by adapting to their various needs.
It is used by many of the world's most demanding professional equipment manufacturers, broadcasters and content aggregators to deliver high quality audio via terrestrial, satellite, the Internet, and mobile networks.
In broadcast, the significantly increased bandwidth efficiency of aacPlus offers broadcasters the highest levels of flexibility in lowering costs per channel and in delivering a wider choice of programming to consumers in consistently high audio quality.
Deployment of the codec has already led to an emerging range of digital entertainment applications such as satellite and cellular music, HD radio and TV and mobile television.
aacPlus is a standard feature in a growing list of more than 200 media/entertainment products from companies including Nokia, Motorola, Sony Ericsson, Alcatel, Casio, Hitachi, Kyocera, LG, Siemens and Toshiba.
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