Three IZT DAB ContentServer built in rack

Digital Broadcasting

IZT’s solutions for digital broadcasting include the ContentServer system for DAB and DRM head-ends. The DAB/DRM ContentServer is a complete software-based head-end system for digital radio combining audio encoding, data service management and multiplexing.

More about IZT Digital Broadcasting

Regarding digital broadcasting IZT generally delivers equipment for the two use-cases broadcast infrastructures and receiver development. Typical applications are the operation of DAB and DRM networks and testing of DAB/DRM receivers.

IZT’s software-based solutions for digital radio infrastructures are perfectly suited for the operation in virtualized environments. Based on matured technology and permanent evolution, IZT delivers flexible and scalable systems to fit requirements and customer needs.

High reliability, enhanced redundancy concepts, minimized down-times and easy migration to new hardware or virtualization enable future-proof solutions. The underlying Fraunhofer software technology stands for highest audio quality and long-term expertise in digital radio systems.

The completely software-based ContentServer technology enables operation of DAB multiplexers as virtual machines in IT data centers.

For the development of radio receivers, the IZT Digital Broadcasting equipment is perfectly completed by the IZT S1000 / S1010 for the generation of test signals. The setups support DAB and DRM standards. This includes implementation and testing of enhanced data services such as SPI/EPG, TPEG and combined receiver testing with FM, DAB, DRM, and much more other digital broadcasting standards including service following (alternative frequencies).


IZT Products


The IZT DAB ContentServer is a professional system for encoding and multiplexing audio inputs, supplementary information and service data into a common data stream for Digital Audio Broadcasting (DAB) – including DAB Classic, DAB+ and DMB.

  • DAB Multiplexer
  • Real-time DAB, DAB+ and DMB Audio encoding
  • Data service and multimedia management
  • Redundant operation for exceptional reliability
  • Remote configuration and monitoring
  • Detailed analysis of input and output data
  • Developer Edition for receiver testing

The IZT DRM ContentServer generates a DRM multiplex from all available audio signals and data services. Moreover, it enables multi-stream real-time audio encoding and handling of all standardized and proprietary DRM data applications.


The IZT DAB Archive is a comprehensive solution for quality control and long-term archiving of EDI/ETI streams. It consists of two components: The DAB Recorder records, analyses and archives a DAB ensemble while the Library Server provides a central interface between user and overall system to access monitoring information and recorded content.


The IZT DAB/DRM MultimediaPlayer can be used as a very powerful tool for the analysis of audio and data content, perfectly-suited for professional monitoring and archiving solutions. It supports the standard protocols for multiplex distribution (EDI, MDI) as an input signal.

  • Monitoring and archiving solutions
  • Data services
  • Remote access possible
  • Custom-tailored integrated server solution

The IZT T1000 can be used to modulate broadcast signals, for example to test receivers during development or in production testing. The broadcast modulator is a good choice for stand-alone operation in fixed or smaller test setups.

Product News


Webinar: DAB Head-end Solutions

Oct 22 2020 3:00 pm CEST (1:00 pm UTC) –
Recording available!

Arne Borsum will take into account different aspects for the design of DAB head-ends based on the IZT DAB ContentServer.

Topics include audio contribution, EDI distribution and redundancy The presentation will also cover recent enhancements in the ContentServer software.


IZT DAB Solutions Enable Regionalization

The IZT DAB ContentServer is the central component of the pilot project “Dynamic Reconfiguration” in the Bavarian region Upper Palatinate. In cooperation with Funkhaus Regensburg and Bayern Digital Radio, IZT provided equipment and expertise to optimize capacities and to enable regionalization of radio programs. On January 24, five Charivari programs with local content went on air.