Fraunhofer IIS, an institute of Fraunhofer-Gesellschaft in Germany, has announced a new web-based test service that developers and manufacturers can use to validate their implementations of the xHE-AAC audio codec for compliance with MPEG standards. The service, which is available exclusively at https://test.xhe-aac.com, is free to use upon registration with Fraunhofer IIS and will test both encoders and decoders.
xHE-AAC introduces many additional features such as mandatory loudness normalization, dynamic range control, and immediate playout frames for seamless bit rate switching that are not fully covered in MPEG conformance tests. The test service provides an easy way to further validate implementations of xHE-AAC for these advanced features, as well as testing general coding tools.
Fraunhofer IIS will be licensing the use of its xHE-AAC trademark on a no-charge basis for use with products that successfully pass the test service tests.
Fraunhofer IIS is pleased to announce this xHE-AAC program which extends its trademark programs from MPEG-H into the AAC codec family. The xHE-AAC mark will enable manufacturers and consumers to identify products that have been tested for interoperability with the advanced features available in the xHE-AAC codec, said Robert Bleidt, Division General Manager, Fraunhofer USA DMT* which promotes and supports the products of Fraunhofer IIS in the US.
xHE-AAC, the combination of Extended HE-AAC and MPEG-D DRC, is the latest generation of the AAC codec family, offering improved audio quality at low bit rates, seamless switching over a 12-500 kbit/s operation range for stereo signals, and mandatory loudness normalization and dynamic range control. xHE-AAC decoders are able to play back content encoded in all earlier versions of AAC and are included in Android, Fire OS, and Apple operating systems. Fraunhofer IIS has also recently licensed xHE-AAC software to Microsoft. xHE-AAC patent licenses are included in the Via Licensing AAC patent licensing program at no additional cost.
A demonstration of the improved audio quality and new features of xHE-AAC compared to HE-AAC is available on Fraunhofer IISs informal AAC playback test site at https://www2.iis.fraunhofer.de/AAC/xhe-aac-compare-tab.html.
Information on licensing the trademark can be obtained by contacting [email protected].
xHE-AAC is a registered trademark of Fraunhofer-Gesellschaft in Germany, the United States, and other countries.
* Fraunhofer USA Digital Media Technologies DMT, a division of Fraunhofer USA, Inc.. Fraunhofer USA Inc. is a legally Independent affiliate of Fraunhofer-Gesellschaft, Germany
About Fraunhofer IIS For over 30 years, the institutes Audio and Media Technologies division has been shaping the globally deployed standards and technologies in the fields of audio and moving picture production. Starting with the creation of mp3 and continuing with the co-development of AAC and the Digital Cinema Initiative test plan, almost all consumer electronic devices, computers and mobile phones are equipped with systems and technologies from Erlangen today. Meanwhile, a new generation of best-in-class media technologies “ such as MPEG-H Audio, xHE-AAC, EVS, LC3/LC3plus, Symphoria, Sonamic and upHear “ is elevating the user experience to new heights. Always taking into account the demands of the market, Fraunhofer IIS develops technology that makes memorable moments.
Head of Marketing Communications
Audio and Media Technologies Division