Digital Radio Mondiale
From Analog to DRM
Alexander Zink
RATEM / iTVF
Taking Turkey
to Digital
Istanbul.tr
27th–29th May 2015
DRM – From Analog to Digital
Alexander Zink
Vice Chairman DRM Consortium,
Senior BDM Digital Radio
at Fraunhofer IIS, Germany
alexander.zink@iis.fraunhofer.de
Tel +49-9131-776-0
Why is Digital Radio better than Analogue Radio?
• DRM serves all coverage needs:
from local/regional to large-area/international (including seas)
• AM analogue (SW, MW, LW) provides good coverage
 DRM adds FM-like sound, lowers power cost by up to 90%
• FM analogue is spectrum and energy hungry
 DRM works in all VHF bands (I, II – FM, III)
requires only 1-10% power,
per-broadcaster transmission (no multiplex operator required)
Why is Digital Radio better than Analogue Radio?
• DRM carries up to 3 programmes on a single AM/FM frequency
• DRM provides clear and distortion-free
better-than-FM stereo sound – even in the AM bands
• Audio programmes are enhanced by multimedia services:
Journaline on-demand text, sending free Internet news to receivers
• DRM has built-in emergency & disaster warning capability (EWF)
 receivers switch automatically, present audio and text info
Why is Digital Radio better than Analogue Radio?
• DRM is an ITU-R endorsed open international standard
• DRM is complementary to DAB (including service cross-linking)
• Many modern digital radio chipsets are already multi-standard
• DRM receiver development and production
has a huge potential for the domestic industry, creating local jobs
AM bands:
National,
international
coverage
HF, (MF at night) – many 1000’s km
MF daytime – many 100’s km
VHF band II (FM) – many 10’s km
VHF (FM) bands:
Local, regional
coverage
VHF band III – line of sight
Topics
DRM for VHF: the most recent ITU confirmed Digital Radio Standard
2003
DRM for AM (DRM30)
1995
DAB
2001
HD Radio
2011
DRM for VHF (DRM+)
2007
DAB+
(additional audio codec)
• Most core functionality is shared:
 Mobile terrestrial broadcasting with SFN
 Audio codec (HE-AAC v2)
 Data applications
 Mutual service linking (AFS)
 Open & ITU recommended standards
 Listener & broadcaster perspective:
DRM and DAB+ offer
equivalent functionality
 Efficient implementation
of combined receivers + chipsets
(NXP, PNP, Analog, ST, Siano, Parrot, …)
• DRM+ is the efficient local/regional
terrestrial broadcast solution
for individual services or coverage needs,
with broadcaster-controlled transmissions
(individual-service transmissions)
• DRM30 is the terrestrial broadcast solution
for large-area MW or SW coverage
(individual-service transmissions)
• DAB+ is an efficient solution for local/regional
terrestrial broadcast in case of
many services with identical coverage area
(multiplex transmissions)
 DRM and DAB+ provide
Complementary Solutions !
• DRM & DAB+ offer identical features
 One Digital Radio Family
• DRM adds the individual-service perspective
 Broadcaster in full control of tx
• DRM & DAB+ are open standards
 ITU recommended
• Combined receiver implementations
are cost-efficient and straight-forward
 Modern receiver chips already support
DRM, DAB, AM, FM
 DRM and DAB+ combined will serve
all broadcaster’s digital radio needs
 Leaves individual choice to broadcaster
Recommended Features
Standard
Receiver
Mandatory Features
Rich Media
Receiver
Minimum Receiver Requirements – v2
.
DRM System Specification
ETSI TS 201 980
The DAB Receiver Profiles are fully aligned with the
Global DRM Receiver Profiles
Dec 2014: Parrot launches ready-to-use multi-standard Radio modules for Automotive
Based on SDR Octopus chip supporting DRM30/DRM+, DAB/DAB+, DVB-T2Lite, ISDB-Tsb, AM/FM
http://www.parrotoem.com/en-gb/news/2014/12/03/parrot-unveils-modules-best-class-dvb-t2-car-tv-reception/
Feb 2014: Siano launches Advanced Multi-Standard Digital Radio Receiver Chip
Supporting DRM+, T-DMB/DAB/DAB+, and Legacy FM Radio –
Targeting automotive and portable/mobile devices
http://www.siano-ms.com/index.php/news/press-releases/261-siano-launches-advanced-multi-standard-digital-radioreceiver-chip-supporting-t-dmb-dab-dab-drm-and-legacy-fm-radio
March 2013 : NXP launches Multi-standard and multi-tuner digital radio baseband processors
for DRM radio, HD, DAB, DAB+, T-DMB
http://www.nxp.com/news/press-releases/2013/03/nxp-successfully-test-drives-digital-radio-mondiale-in-india.html
CD/DVD drive
Antenna
Standard radio
audio out
Display
screen
Central
processor
AM/FM Chip
Amplifier
Keys
Digital Radio
Chip
Digital Add-on
module
All required components available commercially
Further information can found on www.nxp.com
2015-05-28
• Multi-Standard
Global Digital Radio
• DRM (DRM30, DRM+),
DAB, DAB+, T-DMB, HD Radio
supported through
one hardware platform
• Receiver IC
released commercially
Multiple
antennas
• Receiver IC extensively field
tested around the world
• DRM Field tests conducted
in Germany, India, etc.
• Field tests carried out with
multiple car makers and
Tier-1s (Radio makers)
• Car radio receiver projects
ongoing
 Avion AV DR1401
 First DRM mass-market
receiver announced,
developed and manufactured
in India
 Full DRM feature set,
incl. EWF support
 Available in 2015
AAC-LC
– Equally suits speech and music coding at very low bit rates
– MPEG/ISO standardised in 2012
– Applications:
Media download (mobile devices), Streaming, Digital Radio, Mobile TV
MPEG xHE-AAC is added to the DRM system specification,
replacing the speech-only codecs HVXC and CELP.
 HE-AAC v2 also remains as a valid audio codec option for DRM
Benefits:
 Un-restricted audio content
even in most robust DRM configurations
 More services in a single transmission signal
 Aligns with latest technology for mobile phones
Listen for yourself
to DRM xHE-AAC!
News on the ship via
Digital Radio Mondiale
Digital Shortwave
1
2
3
4
5
6
Functions of the
DRM BoardNetServer
• HECA decryption
• DRM decoding
• Archive management
• Provisioning for the
local networks / tablet access
• Detailed News (Journaline) &
Personalised text messages
(one-way email)
• Archived audio, news and
text messages accessible
upon demand
DRM Introduction and
Implementation Guide
Updated – Version 2
More Information on DRM
www.drm.org
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Dedicated India page
http://www.drm.org/?page_id=2494
For any inquiries or comments, please write to:
projectoffice@drm.org