Digital Radio Mondiale From Analog to DRM
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1 Digital Radio Mondiale From Analog to DRM Alexander Zink RATEM / itvf Taking Turkey to Digital Istanbul.tr 27 th 29 th May 2015
2 DRM From Analog to Digital Alexander Zink Vice Chairman DRM Consortium, Senior BDM Digital Radio at Fraunhofer IIS, Germany Tel
3 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)
4 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
5 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
6 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
7 Topics DRM for VHF: the most recent ITU confirmed Digital Radio Standard 2003 DRM for AM (DRM30) 2011 DRM for VHF (DRM+) 1995 DAB 2001 HD Radio 2007 DAB+ (additional audio codec)
8 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, )
9 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!
10 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
11 Standard Receiver Recommended Features Mandatory Features Rich Media Receiver Minimum Receiver Requirements v2. DRM System Specification ETSI TS The DAB Receiver Profiles are fully aligned with the Global DRM Receiver Profiles
12 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 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 March 2013 : NXP launches Multi-standard and multi-tuner digital radio baseband processors for DRM radio, HD, DAB, DAB+, T-DMB
13 CD/DVD drive Antenna Standard radio Display screen Central processor AM/FM Chip audio out Amplifier Keys Digital Radio Chip Digital Add-on module All required components available commercially
14 Further information can found on Multi-Standard Global Digital Radio DRM (DRM30, DRM+), DAB, DAB+, T-DMB, HD Radio supported through one hardware platform Receiver IC released commercially
15 Receiver IC extensively field tested around the world Multiple antennas 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
16 Avion AV DR1401 First DRM mass-market receiver announced, developed and manufactured in India Full DRM feature set, incl. EWF support Available in 2015
17 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
18 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
19 Listen for yourself to DRM xhe-aac!
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21 News on the ship via Digital Radio Mondiale Digital Shortwave
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24 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 ) Archived audio, news and text messages accessible upon demand
25 DRM Introduction and Implementation Guide Updated Version 2
26 More Information on DRM For free monthly DRM updates visit and subscribe to: Dedicated India page For any inquiries or comments, please write to:
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