Fraunhofer DRM ContentServer™ R7

Fraunhofer DRM ContentServer broadcasting chain
© Fraunhofer IIS
Fraunhofer DRM ContentServer broadcasting chain
Fraunhofer DRM ContentServer Multiplex Editor
© Fraunhofer IIS
Fraunhofer DRM ContentServer Multiplex Editor
Fraunhofer DRM ContentServer’s automatic audio level normalization
© Fraunhofer IIS
Fraunhofer DRM ContentServer’s automatic audio level normalization

The reliable one-box solution to get your content on-air


The Fraunhofer DRM ContentServer™ R7 is a flexible and highly reliable professional broadcasting solution for DRM (Digital Radio Mondiale). It combines internal audio encoding, support for remote audio encoders, multimedia data management and multiplex generation. A convenient and user-friendly web interface enables configuration and system monitoring via remote access (ContentServer-as-a-Service concept).

The Fraunhofer DRM ContentServer is a complete headend system possessing triple functionality:

  • Internal audio encoding and support for remote audio encoders
  • Multimedia DataServer
  • DRM Multiplex Generator


Application and target audience

The system is typically located in the studio, in a playout center, at the transmitter site, or within dedicated network provider premises – with full remote control for administration and data provision. Whether a community station, a local or regional broadcaster, or a network provider, the system's functionality perfectly complements your needs.

For receiver manufacturers the “Developer Edition” achieves close to 100% test coverage for signaling, audio configurations, data services and multiplexing options.


Always up to date

Thanks to continuous development, the ContentServer technology provides broadcasters with the latest standard upgrades and improvements New features that come with the Fraunhofer DRM ContentServer R7 include, for instance, automatic audio loudness normalization and monitoring as well as additional IP-based audio streaming source interfaces.



Perfect match

Various versatile interfaces for audio and content provision pave the way for straightforward integration into studio play-out-systems and complex broadcasters’ and network providers' environments.


Keeps you on air - at all times

The ContentServer technology has earned a worldwide reputation for the highest reliability and quality. This is further enhanced by powerful redundancy features (even linking remote sites).


Highlight features at a glance

  • Convenient, user-friendly web interface for configuration and system monitoring via remote access (ContentServer-as-a-Service concept).
  • Powerful monitoring system controlling all system functions including content provision.
  • Internal audio encoders with AES67-AoIP live audio input (Livewire, Ravenna) and consumer-type streams (Icecast/SHOUTcast), internal soundcards (with optional adaptive resampling, SRC) or file upload, as well as advanced support for remote audio encoders.
  • Support for all DRM specified audio codecs and audio configurations, including MPEG xHE-AAC, legacy AAC, and 5.1 surround sound.
  • Loudness normalization amplifies or attenuates the incoming audio to obtain and maintain the target loudness level specified in Loudness Units relative to Full Scale (LUFS).
  • Backup audio encoding makes the ContentServer switch automatically to a pre-defined backup/standby audio source in the event that the primary audio source fails or signal errors – such as silence – are detected.
  • Audio Cross-Redundancy: Deploying a new Smart Silence Detection technology, ensures perfectly valid multiplex outputs from all ContentServers of a redundancy group even if a live audio input source fails.
  • Data provision via established protocols such as UECP, FTP/HTTP or XML/JSON RPC API.
  • With its natively included Common Alerting Protocol (CAP) import interface for DRM EWF (Emergency Warning Functionality), the ContentServer automatically creates EWF alarm announcements and EWF program content for DRM transmissions.
  • Automatic creation of playlists as Journaline pages: the list of recently played songs is derived from the Text Message Plus (TM+) information and accessible to the listener through Journaline.
  • Redundancy Group operation allows two or more ContentServers to be connected locally or even works across remote sites while providing a single configuration and data upload interface, as well as time-aligned reconfigurations with frame-synchronous MDI output.


The Fraunhofer DRM ContentServer™ R7 is available in several editions (option packages). These editions provide different features to accomplish typical use case scenarios. All editions can be extended by additional features.

The system as a complete package, including hardware and specific customer support services, is available from Fraunhofer’s OEM partners.