The Audio and Multimedia Realtime Systems departments at NAB

At NAB 2007 (April 16 – 19) in Las Vegas you can experience our latest multimedia technologies of audio and video coding, mobile TV with surround sound and equipment for digital broadcasting. Visit us at booth SU 6830 in South Hall 3. We also would like to point your interest to the session held by Nikolaus Faerber on the topic "Surround Sound For Radio" at the Broadcast Engineering Conference on Wednesday, April 18 starting at 9 am.

Our demonstrations in detail

MPEG Surround on Fixed-point DSP

As the latest success out of our research labs we show the first real time implementation of an MPEG Surround decoder for fixed-point DSP platforms. All clients using fixed-point DSPs can now be sure of a fast implementation. Come to our booth and see for yourself how stable our solution is.

5.1 Surround Sound for HD or Satellite Radio

Fraunhofer IIS is showing a prototype of a 5.1 surround sound HD radio receiver based on the ISO MPEG Surround standard combined with the HDC format. MPEG Surround is the high quality multi-channel audio coding scheme that is used to enhance existing stereo or even mono broadcasting systems to full multi-channel surround sound without additional costs in terms of bitrate and infrastructure. It is the worlds first surround audio coding scheme offering best 5.1 and stereo sound simultaneously at 48 kb/s (combined with HE-AAC) while being backward compatible to existing stereo/mono receivers. MPEG Surround is standardized as part of MPEG-D guaranteeing fair and reasonable terms of licensing for everybody.
Learn more about MPEG Surround
A live broadcasting chain with MPEG Surround and HD Radio can be seen at booth N 7726 of Telos Systems.

IPTV with MPEG Surround

With the new MPEG-4 AVC/H.264 video encoder software by Fraunhofer IIS combined with MPEG Surround sound technology, broadcasters are able to transmit high quality video with surround sound at bitrates as low as 2 MBps. At our booth we will demonstrate a live encoding and IP streaming chain.
Overview on our activities in the field of video coding

Mobile TV with MPEG Surround Binaural

At NAB Fraunhofer IIS demonstrates the latest results of DVB-H developments. Our improved DVB-H player SDK for Windows CE and embedded Linux based devices is now also featuring MPEG Surround Binaural. This allows transmission of true multi-channel sound at data rates currently used for stereo services and features realistic playback of surround sound over regular headphones. The DVB-H player gets the signal from an SDIO receiver card using the IP interface. In addition, the player also comes along with the integration of ISMACryp – an encryption system for secure transfer of multimedia content.
More information about our DVB-H server and client solutions

HD-AAC Scalable Lossless Audio Coding

The new audio format developed by Fraunhofer IIS in collaboration with I²R is High Definition Advanced Audio Coding (HD-AAC). It is based on the standardized technologies MPEG-4 AAC and MPEG-4 SLS. By adding a fine grain scalable lossless (SLS) layer to the AAC core, broadcasters are able to archive a completely lossless file. By skipping some SLS information you can distribute that file via limited channels with the highest quality of service – with maximum data rates or maximum buffer sizes.
Further information in our scalable audio coding

mp3 Surround for Internet Radio

5.1 sound at data rates not higher than those of stereo mp3 – this is mp3 Surround, the surround extension of the popular mp3 format. It is fully backwards compatible and offers excellent stereo quality on all existing mp3 players. Therefore it is an ideal solution for all mp3 web radios wanting to have a real USP to their listeners: surround sound at low bitrates.
Detailed information on our spatial audio coding

DRM ContentServer

The only product worldwide, supporting all features of the Digital Radio Mondiale standard including EPG, AFS, service encryption and all kinds of data services.
Here you'll find everything about our technologies for digital broadcasting