Your SlideShare is downloading. ×
0
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Open Broadcasting Platforms
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Open Broadcasting Platforms

1,368

Published on

Internal CRC presentation about Mobile Multimedia Broadcasting team projects. Mostly based on www.slideshare.net/fralef and www.slideshare.net/roykilo presentations.

Internal CRC presentation about Mobile Multimedia Broadcasting team projects. Mostly based on www.slideshare.net/fralef and www.slideshare.net/roykilo presentations.

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,368
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. CRCMarch 8, 2012 Open Broadcasting PlatformsPascal Charest 1
  • 2. Background:Mobile Multimedia Broadcasting Projects 2
  • 3. New Applications for Radio Radio Technologies (AM, FM, DAB, ..) = Mobile Goal : explore, demonstrate, innovate, ... Mobile multimedia applications Methodology: Prototypes (not products) integration of system building blocks re-use, remix, tweak, develop, ... buy 3
  • 4. ProblematicCommercial equipment and mobile handsetsNOT optimal for playing around (R&D)- Closed, expensive, NDAs, ...- MNOs (used to?) control handsets functionality- Can’t easily modify functionality- ...Instead: Generic HW + Free/Libre OSS 4
  • 5. Software + Generic HW CRC-mmbTools DAB Transmitter OpenBTS GSM Base StationUSRP Oscilloscope ??? Test System 5
  • 6. The Software Advantage● Can be changed, fixed, enhanced... easily● Can be copied at almost no cost● Can be distributed at almost no cost● Functionality can be enhanced after HW has been produced, distributed: upgrades. ... 6
  • 7. Defining Free Software● As in free beer or as in free speech?● You are free to do what you want with it... once youve paid for it !● Executable software available at no cost with limited or full functionality: freeware, shareware● Free open source: license limits redistribution● Free libre open open source (FLOSS): copyleft (GPL)● Free open source BSD: free to do anything● WARNING: Software Patents = Legal Gray Zone 7
  • 8. CRC-mmbTools Timeline● 2000-2006: Mains tools developed● 2006: IBC demo DAB, DRM, DMB (USRP)● 2007: First live CD released (freeware)● 2008: GPL CRC-DABMUX, CRC-DABMOD, …● 2009: Demo EBU Village IBC, Android DAB● 2010: NAB demo Live CD FM tx + FM hybrid app● 2011: FM-RDS Android Library, FM TwoO● 2012: NAB??? 8
  • 9. End-to-end DAB tool chain 9
  • 10. Transmitter and receiver TRANSMITTER “Open” Receivers since 2007 Integrated GNU/Linux Open Source DAB transmitter with USRP since 2006 2007 2008 GNU/Linux Android 1.6 FreeRunner Google G1 USB DAB Rx DAB over Wifi 10
  • 11. CRC-mmbTools Live CD● Free● “One-click” transmitter● CRC-DABMUX● CRC-DABMOD● Pre-encoded content: DAB, DAB+, DLS, MOT, Slideshow, DMB, …● Installable 11
  • 12. Testing in the “Cloud” CRC Web Appliances ● First DAB+ encoder ● Upload .mp3 ● Get .ETI ● Playback with CRC- EtiStreamer ● Reference encoder, compliance, ... 12
  • 13. Building Communities Around OSS 13
  • 14. RAI + Rai Way: TPEGCRC Openmokast 14
  • 15. Total Broadcast Consultants ● Experimental license ● Since April 2012 ● Dedicated lines, wireless links ● 11 DAB and DAB+ services ● Internet mp3 audio streams ● Barix Exstreamers (mp3 decoding) ● CRC-DABPLUS ● CRC-DABMUX ● Farsite ETI Interface ● UBS Modulator ● SFN, 2 transmitters: 28dBw, 15dBwCoverage in Dublin, Ireland 15
  • 16. Workshop EBU Radio Week 2011 10 DAB multiplexes in a room! 16
  • 17. Workshop EBU Radio Week 2012 17
  • 18. DAB+ during the EBU Radio Week 2012● Experimental license● 100W ERP● 9 DAB+ services● Internet mp3 audio streams● 20.000 Euros Src: opendigitalradio.org Coverage at EBU, Geneva 18
  • 19. Kanal Plus – EBU Radio Summit 2012 Src: http://www.slideshare.net/UlrBri/120215-brinck-kanalplusdenmark 19
  • 20. FM Projects 20
  • 21. FM Project ObjectivesDemonstrate new potential uses for FM-RDS Public Alerting to mobile devices Hybrid Radio: FM Audio + Mobile Internet Enhancements Radio TaggingWhy? FM already inside many smart phones New devices available: iPod Nano 5 (2009) ... iPhone ? Rumours of an FM API in Android 2.2 (May 2010)Challenges US Mobile Network Operators disable FM function in handsets Closed APIs Reverse engineering 21
  • 22. Early mobile developments (2002):Reaching Portable DevicesDABRadioSignal - iPaq + Wifi - Java Widget CRC Concept: Broadcast Hotspot - DAB Audio streaming Linux embedded CRC Receiver Manager Software Receives DAB, forward over Wifi PC-104, Geode 22
  • 23. FM-RDS Tx/Rx Test Platform Tx/Rx platform to experiment with FM-RDS  Hardware (generic and cheap)  Laptop  USRP with basic TX and basic RX daughter boards  Software  GNURadio version 3.2.2  GNURadio Companion 3.2.2  gr-rds (to enable RDS) Built from free software 23
  • 24. FM-RDS Tx/Rx Software GNURadio FM-RDS applications 24
  • 25. PC Development Platform  ODA Rx on G1Rx PC USRP Tx FM Rx FMG1 Tx USRP PC WiFi G1 USRP 25
  • 26. FM/RDS Library on Windows Mobile 2009-2010 App. for HTC Touch Pro  Windows Mobile (closed platform)  FM-RDS chip (no official API)  Developed RDS decoder (rdslib)  Presented at NAB 2010 Copyright: HTC 26
  • 27. FM/RDS Library ported to Android 2010 (After NAB) App. for T-Mobile G1  Android (open platform)  FM-RDS chip (no! → RDS over WiFi)  Developed FM-RDS app. (Support for ODAs) (Using USRP + PC) Ready for Android handset Copyright: HTC with FM-RDS chip. 27
  • 28. Low Level Access to FM on Samsung Galaxy S Q4 2010 New phone:  Android (Great! Its the platform we have selected earlier)  FM-RDS chip (yes! But no API)  Developed an API (Silicon Labs fmsi4709)  Enhanced the app RDS Audio Volume Region Copyright: Samsung GUI Seek 28
  • 29. CRC FM TwoO App 29
  • 30. FM TwoO Overview Released in February 2011 on Android Market Pronounce: Two "O", like in Web 2.0 Samsung Galaxy S Demo/Testing Application First FM App on Android Market +50k downloads to date Test mode (RDS via Wifi) RT+ Decoding RadioDNS: RadioVIS/EPG Distribute free library available 30
  • 31. FM TwoO vs Samsung Stock FM App src: mmbtools.crc.ca 31
  • 32. FM TwoO Compatibility Galaxy S Then: YES Galaxy TAB: NO Nexus S: NO 5 Galaxy S US models: NO? Galaxy S 2: root Galaxy S Now: ROOT 32
  • 33. FM Driver Disabled•Since new firmware release May 2011•New permissions to FM radio driver•Phone must be rooted for full TwoO functionality 33
  • 34. FM TwoO UI RadioVIS  A RadioDNS-based application From FM-RDS - RT/RT+ - PS - PI - AudioHybrid Radio From Internet - Image - Text 34
  • 35. Our Android ProjectsOpenmokast FM TwoO 20102008 Android 2.2Android 1.6 Samsung Galaxy SGoogle G1 First FM RDS App on the Android MarketDAB/RDS over Wifi FM RDS Open Data ApplicationsCELT audio decoder Hybrid RadioMOT Slideshow decoder Public Alerting 35
  • 36. Software Projects Overview 36
  • 37. 37
  • 38. Thanks - The MMB Team ! Special thanks to François Lefebvre and Roy Kyrillos for their great support in preparing this presentation. 38

×