Visit us at booth 2L31 in hall 2 at MWC 2021 in Barcelona. We look forward to seeing you!
LC3 / LC3plus: High-quality audio for the entire communication ecosystem
The codec’s low complexity meets the requirements of wireless communication platforms such as Bluetooth, DECT, and VoIP terminal equipment. By reducing the required bit rate by roughly 50 percent compared to legacy codecs, LC3 and LC3plus facilitate low-energy services that enable a longer battery life or the creation of smaller products. Due to the flexible codec design, applications are not limited to voice services but can be extended to high-quality music streaming as well.
LC3 is the best choice when aiming for super-wideband phone calls and high-quality audio streaming.
LC3plus is the standardized solution that makes it possible to provide the quality of high-resolution music streaming services over wireless accessories and, through this, independence from proprietary, vendor-specific technologies. It delivers doubled capacity for wideband calls over DECT cordless phones and a high-resolution audio mode for Bluetooth A2DP. It is the only open-standard codec for high-resolution audio and works with extremely low delay and improved robustness.
Poor network connectivity causing audio streams to drop is a thing of the past, thanks to xHE-AAC. The latest addition to the AAC codec family offers maximum coding efficiency, with a bit rate range from 12 kbit/s to 500 kbit/s and above for stereo services. In combination with the technology's seamless bit rate switching over DASH and HLS, and mandatory MPEG-D DRC Loudness and Dynamic Range Control, xHE-AAC is the ideal solution for adaptive audio and video streaming services – whether it’s for movies, music, audiobooks or podcasts – as well as for digital radio broadcasting. The codec is natively supported in the latest Apple, Android and Amazon operating systems and products, and has recently been licensed to Microsoft.
Fraunhofer also provides a 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 free service can be used to test both encoders and decoders. It is available exclusively at https://test.xhe-aac.com and can be accessed after registering with Fraunhofer IIS.
Listen to a 3D audio experience that is matched perfectly to your preferences. With MPEG-H, you can choose from presets or create your own settings. It is now possible, for instance, to switch between languages, adjust the volume of a sports commentator, enhance the dialogue, and choose from various audio description options. All these features are added to immersive sound that listeners have come to expect from quality services today.
MPEG-H Audio is the first next-generation audio system used in a regular terrestrial 4K TV service and standardized in 3GPP, DVB, ATSC 3.0, and ISDB. Broadcasters and providers of video streaming services around the world can now meet their audiences’ requirements by providing personalization features and more advanced accessibility services with their 3D audio content. MPEG-H delivers immersive and interactive sound and can adapt to the capabilities of any end device, thereby ensuring the best possible experience for all listeners – regardless of listening device or environment.
The technology has also been incorporated into new audio streaming formats and enables artists as well as music creators to produce an immersive musical experience by positioning sound sources such as vocals, chorus and instruments in space to perfectly match the creative and artistic intent. When playing back the resulting content, users are immersed in sound from every direction as intended by the content creator.
The 5G Industry 4.0 test bed at Fraunhofer IIS is an open environment for testing specific customer use cases in industry and logistics. Testing applications with 5G early on accelerates the move toward fully connected, flexibly customizable production, assembly and logistics processes. All outdoor, indoor and transition areas of the testing area are equipped with interlocking communication and positioning solutions. Companies can use the 5G Bavaria Industry 4.0 test bed to investigate how 5G can meet various industrial application requirements in real life. As positioning will be an important part of Industry 4.0 applications the 5G test bed is one of the first in the world showing 5G-based positioning in the context of Industry 4.0 application. Our experts research both 5G positioning in the sub-6 GHz band and in the mm-wave range.
In addition, emulation and simulation of specific 5G technologies can be performed in the related 5G Bavaria test center. The 5G Bavaria test bed Industry 4.0 is sponsored by the Bavarian Ministry of Economic Affairs, Regional Development and Energy.
Satellites enable global connectivity and have the potential to improve 5G availability around the world. Among the applications that particularly benefit from a direct connection between satellites and user equipment (UEs) are, for example: efficient transmission of media content and software updates to many mobile devices simultaneously; sending of updates and alerts to vehicles with 5G modems; and fixed VSAT modems bringing broadband Internet to remote regions.
To make all this possible, we are working in 3GPP to integrate satellite connectivity into the 5G ecosystem. At MWC Barcelona 2021, we will present system concepts for a hybrid 3GPP infrastructure comprising satellite and terrestrial infrastructure as well as prototypes for the 5G New Radio communication link over satellites. We will also provide initial insights into the simulation and emulation capabilities for new 5G technologies available at the 5G Bavaria test center at Fraunhofer IIS.