Fraunhofer-Gesellschaft Fraunhofer DRM User Manual

Fraunhofer
DRM ContentServerTM R4

04 / 2009

Fraunhofer DRM ContentServerTM R4

The Fraunhofer DRM ContentServerTM R4
is a highly reliable professional broad­cast system for Digital Radio Mondiale
(“DRM“, see www.drm.org). It provides
all options DRM offers and all interfaces
for a smooth integration into the
broadcast chain.

The Fraunhofer DRM ContentServerTM R4
provides triple functionality:

– DRM AudioServer with multi-

stream real-time audio encoding

– DRM Multimedia DataServer
supporting all standarized as well as

broadcaster specific data
services, covering import, process­ing, encoding and broadcast

– DRM Multiplex Generator
managing the extensive DRM signal-

ling capabilities, generating the full
digital DRM Multiplex and providing
standard MDI/DCP output streams

The One-box
DRM Broadcast Solution

The system is typically located in the stu­dio, at a playout center or at the trans­mitter site – with full remote control for
administration and data provision.
The remote web interface featuring
Fraunhofer´s in-place-editing techno­logy for quick and convenient system
configuration can be accessed through
any modern web browser.

The output signal of the Fraunhofer
DRM ContentServerTM R4 carries the
complete DRM Multiplex (FAC, SDC,
MSC) in MDI/DCP format according to
ETSI TS 102 820 (Multiplex Distribution
Interface) and ETSI TS 102 821 (Distri­bution and Communications Protocol).
This DRM Multiplex can be fed simulta­neously to any number of DRM Modu­lators (optional SFN operation) and
monitoring stations.

Fraunhofer DRM AudioServer

This system component provides real­time encoding of up to four audio
streams in parallel:

– Live analog, digital, Livewire or

MP3 playlist input

– AAC (mono/stereo/parametric stereo),

HVXC and CELP encoding with SBR

– All possible bitrates including UEP

(unequal error protection)

– All available sampling rates

(8 / 12 / 16 / 24/ 48 kHz)

– MPEG Surround option

Fraunhofer Multimedia DataServer

This component supports the import /
collecting, merging, checking, conver­sion and encoding of data for all stand­ardized DRM / DAB as well as individual
data applications.

DRM / DAB data applications:

– DRM TextMessages
– Journaline
– MOT Slideshow
– MOT Broadcast Website
– TPEG Traffic Information
– PRBS – internally generated synchro-

nous or asynchronous test patterns
– EPG – Electronic Programme Guide
– TMC – Traffic Message Channel

Open interfaces allow the transmission
of any custom-tailored individual
application at various protocol levels:

– Transparent File Transmission via MOT
– IP Insertion –
(Internet Protocol tunneling)
– TDC – Transparent Data Channel
– DRM Data Units
– MSC Data Groups
– Synchronous / asynchronous

data streams

®

Versatile data import interfaces and
automation features allow for a smooth
integration into production environ­ments:

– RSS import (automatically scheduled

or manually triggered)
– Ftp, ftp-mirroring and http-mirroring
– Web-interface for quick data editing

using a standard web browser
– UECP, Funkhaustelegramm,

Leitungsprotokoll and

ZENON studio interfaces
– Socket interface for real-time data

insertion
– Protected connections for secure

and reliable data import restricted
to the predefined data sources:
ftps, ftps-mirroring, https-mirroring

The protocol standard MOT 2.1.1 (Mul­timedia Object Transfer) for enhanced
file and directory structure transmissions
is supported.

Fraunhofer DRM Multiplex Generator

All DRM signalling features are supported
according to ETSI ES 201 980 (v.3.1.1)
including the DRM dynamic reconfigu­ration feature.

Transmission channel options:

– Robustness modes A, B, C, D
– Spectrum occupancy

4.5, 5, 9, 10, 18, 20 kHz

– MSC modes 16 QAM, 64 QAM

and hierarchical (HMmix, HMsym)
– SDC modes 4 QAM and 16 QAM
– Interleaver length 0.4s and 2s
– EEP (equal error protection) and

UEP (unequal error protection)

with all possible combinations of

protection ratios / code rates
– DRM+ option: robustness mode E,

100 kHz, MSC modes 4/16 QAM,

SDC modes 4 QAM code rate

0.5/0.25, interleaver length 0.6s

DRM signalling options:

– Service ID
– Service language (short list for scan-

ning and detailed list covering all

worldwide languages)
– Service programme type
– Country of origin
– Current time and date,

including local time offset
– Alternative frequencies for the

whole DRM Multiplex and individual

DRM services
– Announcements (traffic, news,

weather, alarm, etc.)

Full Unicode / UTF-8 support (all interna­tional characters, ISO 10646) for DRM
TextMessages and DRM service labels.

Advanced System Features

– Detailed system status information
via HTML
– HTML access to detailed log files for
inspection and download
– System configuration backup and
restore mechanism (remote and local)

Hardware

The Fraunhofer DRM ContentServerTM R4
is based on robust and redundant
19" server hardware for reliable
24 / 7 operation.

A console display is supported to locally
activate configurations, to monitor the
system status and to setup the basic
hardware parameters.

Administration and data provision are
based on Ethernet network or modem
dial-in connections featuring a detailed
user management. The strong firewall
functionality guards the access to the
system.

The audio A / D conversion and system
synchronization rely on a GPS clock
source. Alternatively the system syn­chronization can be done via network
timing protocol (NTP).

The system as a complete package
including hardware and specific cus­tomers support services is available
from our OEM Partners.

Automatic broadcast scheduling:

– Global broadcast calendar
– Unlimited weekly calendars
– Manual, SNMP triggered, or
scheduled broadcast
activation / reconfiguration

Sound system configuration:

– Live audio level monitoring
via web browser
– Audio amplification setup
– Audio clipping and silence detection
– Optional MP3 normalization on im­port

Powerful security features:

– Professional firewall
– Secured connections for
administration and data upload
– Continuous system self-monitoring
– Monitoring of attached
uninterruptible power supplies (UPS)
– System status signalling via
e-mail report system, console,
relay card and SNMP

*feature is under development

Editions

l

l

The Fraunhofer DRM ContentServerTM R4
is available in three Editions (option
packages). All Editions share all the ba­sic DRM functionality, but each Edition
provides a different level of system
functionality by default.
All Editions can easily be extended by
additional features at all times.
– Basic Edition

The perfect starter kit for smaller
broadcasters or for use at the trans­mitter site (accompanying a DRM
Modulator) with the option of fu­ture extension to the customer´s

growing requirements
– Standard Edition
Combines the most important DRM

features (like AFS) and functionality

(like Broadcast Scheduling) for easy

integration into a studio or playout

center environment

– Professional Edition
Extends the Standard Edition by pro-

fessional automation features and
provides the full range of individual
data transmissions as well as stan­dardized multimedia applications
like DRM-EPG

The Developer Edition is designed to
support the efficient development and
testing of DRM receivers. It provides the
full functionality of the DRM system with
regard to signalling and transmittable
content (incl. dynamic reconfigurations).

In combination with the Fraunhofer
DRM Test Equipment DT 230 and its
modulator option a full broadcast chain
with RF output can easily be set up. The
chain may well include features of the
channel simulation option.
This edition is restricted to laboratory
use by license. It cannot be used for
public or commercial broadcast.

Fraunhofer Institute for
Integrated Circuits IIS

Executive Director

Prof. Dr.-Ing. Heinz Gerhäuser

Director

Prof. Dr.-Ing. Günter Elst

Am Wolfsmantel 33
91 058 Erlangen, Germany
Phone [phone]
Fax [phone]

Contact

Alexander Zink
Phone [phone] - 0
Fax [phone] - 6099
[e-mail]
www.iis.fraunhofer.de /broadcast

Edition

Available options

General System Features

Firewall Basic
Firewall Professional
Support for serial devices
E-mail reports

System checks
System backup (at console)
SNMP interface
System configuration

remote up-/download

Security Summary

DRM Multiplex Generator

Unlimited DRM Multiplex defs.

AFS – Alternative Frequency Editor
Broadcast Scheduler

(weekly/calendar)
Announcement support via

UECP, Funkhaustelegramm,
Leitungsprotokoll

Extended broadcast info
(SDC layout)

Support for external audio encoders
Upload of AFS information

from external sources
DRM+ (Robustness Mode E) opt.

DRM AudioServer

Audio input live
analog/digital/Livewire

Audio input as mp3/wav, playlist

Silence/clipping
detection and configuration

Audio input signal amplification /
mp3 normalization

AAC encoders [max. 4]
HVXC encoders [max. 4]
CELP encoders [max. 4]
MPEG Surround opt. incl. SX Pro

Com-

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Available options

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DRM Multimedia DataServer

Data Application Types

DRM TextMessages

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Journaline
EPG – Electronic Programme Guide

MOT Slideshow
MOT Broadcast Website/

Transparent File Transmission
TPEG traffic information
TMC – Traffic Message Channel
PRBS Generator (sync/async)

IP Insertion
TDC – raw data (any individual

data on any protocol level)
Support for multiple

MOT priority classes

Data import methods

Import via HTML interface
Import via file FTP upload
Import via HTTP/FTP mirroring
Import via live socket connection
Import from existing RSS sources

(TextMessages + Journaline
Import from Funkhaustelegramm,

UECP, Zenon, Leitungsprotokoll
(TextMessages + Journaline®)

Import via
automatic scheduled mirroring

Secure data import connections

Symbols: Option is included in the package
– Option is not included but can be added to the package

Option can not be combined with the package

Edition

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Note: This list is informative only. A binding list of
options per Edition is contained in the current price list

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04 / 2009 dem