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Todays Technologies in Radio Broadcasting

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					NABA AGM 2008




   Today’s Technologies in Radio Broadcasting



       NABA AGM 2008
       CNN, Atlanta, February 25 - 27, 2008
                                        Anthony Caruso, P. Eng.
                                        Director, CBC Technology
                                        Vice-Chair NABA-TC


                                  Canadian Broadcasting Corporation   1




Today’s Technologies in Radio Broadcasting




   2                              Canadian Broadcasting Corporation   2




                                                                          1
Today’s Technologies in Radio Broadcasting




   2                              Canadian Broadcasting Corporation   3




Today’s Technologies in Radio Broadcasting
Tapeless and Digital Infrastructure



                       From the source to the
                       antenna :
                          Tapeless support
                          Digital domain



                       Maximum audio quality,
                       Minimum :
                          Conversions Cycles
                          Cascades



   3                              Canadian Broadcasting Corporation   4




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Today’s Technologies in Radio Broadcasting
Tapeless Building Blocks


             1                     2                    3
           Input               Process               Output




         Acquisition          Production           Distribution



        Ingest             ON AIR                    To XMIT
        Collection         Post-Production           Contribution


   4                               Canadian Broadcasting Corporation   5




Today’s Technologies in Radio Broadcasting
Acquisition



       CD Grab (software)
       “Flash“ Recorders
       FTP (incl. accelerator)
       InterWeb (Dalet)
       IP Feeds (audio)
       Analog/AES3 feeds


       Format converters


   5                               Canadian Broadcasting Corporation   6




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Today’s Technologies in Radio Broadcasting
Production – DTR Building Blocks




   MetaData            Audio Files      Application         Traffic &
  Server (SQL)           Server           Server           Automation


                              IP NETWORK



    Ingest &
                          Post-            ON AIR
     Format                                                  Archives
    Converter          Production        Production



   6                                 Canadian Broadcasting Corporation   7




Today’s Technologies in Radio Broadcasting
Production



   DALETTM DTR "Complete" Radio Suite
   From the source to production


       Ingest
       File Transfer
       Workstation
       Storage
       Archives
       Digital Assets Management

   7                                 Canadian Broadcasting Corporation   8




                                                                             4
Today’s Technologies in Radio Broadcasting
Production


   DALETTM Desktop Workstation


       Playout (manual and automatic)
       Recording (manual and automatic)
       Editing (up to 8 tracks)
       Multi-formats (audio files)
       MetaData RDBMS (SQL)
       Automation (Play/Record)



   8                               Canadian Broadcasting Corporation   9




Today’s Technologies in Radio Broadcasting
Distribution


   SW56 and ISDN networking
   technologies are approaching
   the end of their life …


   IP Audio Codecs are …
   The solution for audio transport
        Collection
        Distribution
        Mono/Stereo/Multi-channels



   9                               Canadian Broadcasting Corporation   10




                                                                            5
Today’s Technologies in Radio Broadcasting
Transmission and IP Streaming


        Broadcasting
         AM
          FM
          SW
          Satellite
          Galaxie
          Internet
          Streaming &
          PodCasting


   10                              Canadian Broadcasting Corporation   11




Today’s Technologies in Radio Broadcasting
IT for Radio Broadcasters


   DespTop PCs and Servers
   Digital Assets Management Software
   Virtual “Audio” Library
   DaletPlus DTR Compliancy
   On-Line and Off-Line
   IP Topology
   (IP) Transport & Routing
   Optical and Flash Medium
   JBOD, RAID, SAN & NAS
   Clustering & Backup systems


   11                              Canadian Broadcasting Corporation   12




                                                                            6
Today’s Technologies in Radio Broadcasting
Audio Measurements in a “compressed world"


 Quality Control of Radio systems & networks requires
 specific tool to perform testing.

 ITU-R BS.1387-1
 Method for objective & subjective measurements of
 PErceived Audio Quality ( PEAQ )

 CRC developed the PEAQ

 Objective Diff-Grade
 Report :
 From 0.0 to -4.0 (scale)



   12                               Canadian Broadcasting Corporation    13




Today’s Technologies in Radio Broadcasting
The Future – IP-Based Production


  A technology that is gaining an increasingly large market share in
                             radio broadcasting


  For signal transport, the IP system uses existing computer infrastructure
  as DTR workstations & servers and office computers.
  Mainly because of the widespread availability of computer technologies,
  an IP audio system is cost-effective to implement, support and operate.




   13                               Canadian Broadcasting Corporation    14




                                                                              7
Today’s Technologies in Radio Broadcasting
The Future – IP-Based Production




        A simple example is
        a 16 pair audio cable is
        replaced by a single
        CAT-5 computer cable.

        IP Based DTR
        (Client/Server)
        System Vs.
        conventional wiring



   14                                Canadian Broadcasting Corporation   15




Today’s Technologies in Radio Broadcasting
The Future – IP-Based Production


   An IP-based networking
   audio system can be
   configured, modified and
   upgraded much more
   easily than a traditional
   fixed studio installation.
   All the audio routing
   would be implemented
   by standard computer
   switches
   In a multilevel topology,
   an IP system is easily scalable




   15                                Canadian Broadcasting Corporation   16




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Today’s Technologies in Radio Broadcasting
The Future– IP-Based Wireless Wideband (Mobile)




        Inmarsat BGAN
        From Satellite to the Public via IP Network

        1x EV-DO Rev. A
        Downlink up to 3.1 Mbit/s
        Uplink up to 1.8 Mbit/s

        WiMax
        Two-way platform with the capability of
        fixed broadcasting




   16                                 Canadian Broadcasting Corporation   17




Today’s Technologies in Radio Broadcasting
The Future – Digital Broadcasting


 HD RadioTM using IBOC Technology
Same FM analog (stereo) service, plus …
96 kb/s of digital audio.
Single digital audio or multicasting.

 DMB (Terrestrial or Satellite)
 Multiple audio carrier on (mobile) digital
 media service - along with video & data.

 DRM (Digital Radio Mondiale) up to 30MHz
 Works with all AM bands (SW, MW, LW)
 From 1 to 4 audio programs.

 DRM+ Extended up to 120 MHz into the FM
 band for potential replacement of analog FM services


   17                                 Canadian Broadcasting Corporation   18




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Today’s Technologies in Radio Broadcasting
Question Period



     Hope you survived this Power Point Torture!

                             THANK YOU!



                    Anthony Caruso, P. Eng.
          Director, New Broadcast Technologies, CBC
                      anthony.caruso@cbc.ca
                          1 514 597 3865



                                   Canadian Broadcasting Corporation   19




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