A presentation I gave at OOP 2007 on podcasting Markus Voelter http://www.voelter.de

1. Podcasting 101 Markus Völter [email_address] www.voelter.de

2. Markus Völter Independent Coach, Consultant, Trainer, Developer…

3. … for software architecture, model-driven development, middleware … and podcasting 

4. Why do I a talk about Podcasting ?

5. Founder and Editor of

6. software engineering radio Team Alexander Schmid Arno Haase Bernd Kolb Eberhard Wolff Michael Kircher Markus Voelter

7. software engineering radio Example Topics Software Architecture Error Handling Concurrency Remoting Ruby Patterns …

8. software engineering radio Example Interviews Eric Evans Doug Schmidt Michael Stal Gregor Kiczales Frank Buschmann …

9. software engineering radio Since January 2006 Every 10 days www.se-radio.net

10. About Podcasts

11. Podcasting

12. Democratizing Radio The Long Tail if you have worldwide distribution, even the smallest niche topic will find a sizable audience

13. Podcasting is the concept of downloading various forms of longer-form online audio programs in the form of digital audio files you can listen to at any time you choose. Podcasting does not refer to the downloading of individual MP3s or songs, but it does refer to the download of program-oriented online audio such as a talk show or a hosted music program. Usually the distribution happen by an automated download using a suitable RSS/Podcast client. Podcasting?

14. Podcasting? iPod + Broadcasting Podcasting!

15. Podcasting = Broadcasting via the iPod MP3‘s distributed via RSS

16. RSS: Really Simple Syndication

17. <?xml version=&quot;1.0&quot;?> <rss version=&quot;2.0&quot;> <channel> <title>oAW News</title> <link>http://eclipse.org/gmt/oaw/</link> <description>oAW News</description> <item> <title>oAW 4.1 RC2 available</title> <link>http://www.eclipse.org/gmt/oaw/download</link> <description> Here's some text... </description> <pubDate>15 July 2006</pubDate> </item> <item> <title>oAW 4.1 RC1 available</title> <link>http://www.eclipse.org/gmt/oaw/download</link> <description> RC1 of openArchitectureWare 4.1 is now available for download. </description> <pubDate>29 June 2006</pubDate> </item> </channel> </rss> RSS: An XML file

18. RSS: An XML file that can pulled by an RSS reader

19. RSS: You can subscribe to the RSS feed

20. RSS: Automatic updates! Feels like a „push“ model.

21. Podcast == RSS Feed? Well, not quite.

22. RSS == Text only (Blog)

23. RSS == Text only (Blog) Podcast == RSS + MP3 Enclosures

24. MP3 Enclosures? References (URLs) to MP3 files somewhere.

25. MP3 Enclosures <?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?> <rss version=&quot;2.0&quot; xmlns:rdf=&quot;http://www.w3.org/1999/02/22-rdf-syntax-ns#&quot; xmlns:cc=&quot;http://web.resource.org/cc/&quot; xmlns:itunes=&quot;http://www.itunes.com/dtds/podcast-1.0.dtd&quot; > <channel> <title>Software Engineering Radio</title> <link>http://se-radio.net</link> <description>Information for Software Developers and Architects</description> <language>en</language> <copyright>(c) 2006 The team of se-radio.net</copyright> <item> <title>Episode 23: Architecture Pt. 1</title> <link>http://se-radio.net/index.php?post_id=105211#</link> <description>Bla Bla </description> <category>regular/technology</category> <pubDate>Sat, 15 Jul 2006 17:12:00 GMT</pubDate> <guid isPermaLink=&quot;true&quot;>http://se-radio.net/index.php?post_id=105211#</guid> <enclosure url=&quot;http://media.libsyn.com/media/seradio/episode23-architecture_pt1.mp3&quot; length=&quot;40837760&quot; type=&quot;audio/mpeg&quot;/> </item> <item> ... </item> </channel> </rss>

26. History October 2000: Tristan Louis, Dave Winer, Adam Curry en.wikipedia.org/wiki/History_of_podcasting

27. History October 2000: „audioblogging“ en.wikipedia.org/wiki/History_of_podcasting

28. History February 2004: &quot;podcasting&quot; suggested by Ben Hammersley en.wikipedia.org/wiki/History_of_podcasting

29. History September 2004: ipodder-dev list Adam Curry en.wikipedia.org/wiki/History_of_podcasting

30. History February 2005: Carl Franklin first podcast production company, Pwop Productions en.wikipedia.org/wiki/History_of_podcasting

31. Just a Niche? 6.6% of US adults have recently downloaded a podcast this is 9.2 million web users Nielsen (as of July, 2006)

32. Just a Niche? Really popular podcasts have 500.000 downloads per episode (This Week in Tech)

33. Just a Niche?

34. Consuming Podcasts

35. Podcast Client: Podcatcher Directory at: http://www.podcastingnews.com ITunes

36. Finding Podcasts: Podcast Directories Podcast Pickle, Odeo, Yahoo Podcasts, Apple iTunes

37. Tool Chain

38. Tool Chain

39. Topics? A very subjective selection…

40. Science Nature Podcast nature.com/nature/podcast

41. Science This Week in Science twis.org

42. Science Scientific American Podcast www.sciam.com/podcast /

43. Science Science Friday sciencefriday.com/

44. Technology PRI‘s The World www.theworld.org/technology/

45. Technology This Week in Tech (TWiT) twit.tv

46. Technology/Space The Space Show (new space) thespaceshow.com

47. Technology/BioTech Futures in Biotech (FIB) www.twit.tv/FIB

48. IT/Software Software Engineering Radio se-radio.net

49. IT/Software Security Now! grc.com/securitynow

50. IT/Software JavaPosse javaposse.com

51. IT/Software IT Conversations itconversations.com

52. IT/Software FLOSS Weekly (Open Source) www.twit.tv/FLOSS

53. IT/Software Tonabnehmer (Agile SWD) www.frankwestphal.de/Tonabnehmer

54. Entrepreneurship Venture Voice venturevoice.com

55. Entrepreneurship Entrepreneurial Thought Leaders edcorner.stanford.edu/podcasts.shtml

56. Creativity TED Talks Ideas Worth Spreading ted.com

57. Music The Rogue‘s Gallery (Prog Rock) www.thedividingline.com/rg

58. Music The Tartan Podcast (New Scottish Music) www.tartanpodcast.com/

59. Music Marillion Online Podcast marillion.com

60. <Insert your topic here> … and you‘ll find something. somewhere.com

61. Producing Podcasts

62. Topic Whatever you want! Define you target audience. Keep it focused.

63. Recording Microphone Sony F-V220

64. Recording Direct Recording Windows Linux Mac

65. Recording Remote Recording Skype +PowerGramo

66. Recording Advanced (i.e. more expensive) M-Audio Microtrack 24/96 2 channel digital recorder

67. Recording Advanced Direct

68. Recording Advanced Remote

69. Post Production Cutting Multiple Tracks Fade in/out Denoiseing Normalizing Levelling

70. Hosting Blogging Engine w/ Enclosure Support

71. Hosting Storage a minute of 128bps MP3 is about 1 MB file size 45 minutes per week  ca. 200 MB per month each month! After a year: ca. 2.5 GB

72. Hosting Bandwidth 50 MB per week downloaded 5000 times 250 GB per week or 1 TB per month

73. Hosting $$$$$$ ?

74. Hosting libsyn.com or others…

75. Hosting libsyn.com Blogging Engine w/Enclosures Unlimited Bandwidth additional 250 MB storage each month … acceptable download speed … acceptable availability $10 per month!

76. Searching / Finding Google will find you

77. Searching / Finding Google will find you Register with Directories

78. Searching / Finding Cross-Advertise in Podcasts Create a 20 second promo/ jingle for your podcast

79. Searching / Finding Use Podzinger Full-Text Audio Search!

80. Licensing You have to define a license for your podcast.

81. Licensing Do not try to come up with your own license!

82. Licensing Creative Commons Creative Commons is a nonprofit organization that offers flexible copy- right licenses for creative works. creativecommons.org

83. Licensing Example License (the one used for SE Radio) There is also a „lawyer-speak“ bullet-proof text for this license. creativecommons.org

84. Licensing Add the License to the podcast page

85. Music Dangerous! Copyright issues! License Fees (GEMA)

86. Music or… use CC music (there‘s a library of music licensed with CC at the site) Don‘t use ! creativecommons.org

87. Music or… get permission from independent (!) artists Don‘t use !

88. Music or… Don‘t use ! music.podshow.com

89. Fair Use ... a doctrine in United States copyright law that allows limited use of copyrighted material without requiring permission from the rights holders, such as use for scholarship or review. Similar principles are usually available in other jurisdictions. Warning: A delicate Area

90. Fair Use Go to for details en.wikipedia.org/wiki/Fair_use

91. More about Podcasts

92. Several Books Podcasting Now! Podcasting Pocket Guide The Business Podcasting Bible Secrets of Podcasting Absolute Beginner's Guide to Podcasting Podcasting Hacks Tricks of the Podcasting Masters Podcasting: Do It Yourself Guide Podcasting For Dummies Podcasting 101

93. I recommend this one: Geohegan, Klass Podcast Solutions Friends Of Ed, August 2005, ISBN 1590595548

94. pa.gigavox.com Podcast Academy Conference Podcast Expo Conference portablemediaexpo.com Link Collection portablemediaexpo.com/podcastexpert Legal Stuff wiki.creativecommons.org/Podcasting_Legal_Guide

95. Podcasting 101 Markus Völter [email_address] www.voelter.de The End. Thanks!