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

Markus Völter Independent Coach, Consultant, Trainer, Developer…

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

Why do I a talk about Podcasting ?

Founder and Editor of

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

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

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

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

About Podcasts

Podcasting

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

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?

Podcasting? iPod + Broadcasting Podcasting!

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

RSS: Really Simple Syndication

<?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

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

RSS: You can subscribe to the RSS feed

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

Podcast == RSS Feed? Well, not quite.

RSS == Text only (Blog)

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

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

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>

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

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

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

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

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

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)

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

Just a Niche?

Consuming Podcasts

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

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

Tool Chain

Tool Chain

Topics? A very subjective selection…

Science Nature Podcast nature.com/nature/podcast

Science This Week in Science twis.org

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

Science Science Friday sciencefriday.com/

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

Technology This Week in Tech (TWiT) twit.tv

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

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

IT/Software Software Engineering Radio se-radio.net

IT/Software Security Now! grc.com/securitynow

IT/Software JavaPosse javaposse.com

IT/Software IT Conversations itconversations.com

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

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

Entrepreneurship Venture Voice venturevoice.com

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

Creativity TED Talks Ideas Worth Spreading ted.com

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

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

Music Marillion Online Podcast marillion.com

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

Producing Podcasts

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

Recording Microphone Sony F-V220

Recording Direct Recording Windows Linux Mac

Recording Remote Recording Skype +PowerGramo

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

Recording Advanced Direct

Recording Advanced Remote

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

Hosting Blogging Engine w/ Enclosure Support

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

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

Hosting $$$$$$ ?

Hosting libsyn.com or others…

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

Searching / Finding Google will find you

Searching / Finding Google will find you Register with Directories

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

Searching / Finding Use Podzinger Full-Text Audio Search!

Licensing You have to define a license for your podcast.

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

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

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

Licensing Add the License to the podcast page

Music Dangerous! Copyright issues! License Fees (GEMA)

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

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

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

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

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

More about Podcasts

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

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

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

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