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Podcasting What its all about
Podcasting......................................................................................................................2
What it is ................................................................................................................2
Current Uses...........................................................................................................3
Subscribing to Podcasts .................................................................................................3
iTunes Subscribe using the Directory ....................................................................3
iTunes Subscribe using the URL .........................................................................10
iTunes Player ...............................................................................................................11
Listening to Podcasts ...........................................................................................11
Deleting Podcasts.................................................................................................12
Downloaded Files & Copying to mp3 Players ....................................................12
Juice Podcatcher........................................................................................................13Subscribing to a Podcast using Directories..........................................................13
Subscribing to a Podcast using the URL..............................................................14
Downloading & Playing Items.............................................................................15
Item Notes............................................................................................................15
Feed Administration.............................................................................................16
Copying Files to mp3 Players ..............................................................................16
Cleanup ................................................................................................................16
New Alternatives .........................................................................................................17
Links ............................................................................................................................17
BBC Trial.............................................................................................................17
Podcatcher Software ............................................................................................17Directories............................................................................................................17
Mark Morley 2007
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Podcasting
What it is
The word Podcast is a portmanteau (or Frankenword) formed from broadcast and
iPod , the popular mp3 player from Apple Computer, Inc. The term was first
used 12 February 2004 by Ben Hammersley in an article in The Guardian
newspaper.
Podcasting is really another way of downloading audio files to any computer or
portable media device. The introduction of a new way of listening to media (mp3
players) caused a change in the distribution method. This in turn changed peoples
expectations and placed them more in control of when and where they could access
the media they wanted. This is why podcasting has really impacted. The benefit to
you the listeners is that you have control over the information you want to listen to
and when you listen to it, removing the time reliance on the media supplier (radiostation).
A podcast is a multimedia file (generally an audio file) that is distributed over the
Internet using a syndication feed. Put simply, instead of you having to go to a web
page to see if new files have been put up by the author, you can use some special
software to register your interest (subscribe) and have any new files automatically
downloaded for you, so you can listen when you want. Also, you can copy these files
from your computer to a mobile device and listen where you want. The mobile device
can be any mp3 player or increasingly a mobile phone (it doesnt have to be an
iPod).
RSS 2.0 and the enclosure tag underpin podcasting. RSS 2.0 is simply a coding that
dedicated software can read, and is called the podcast feed. Within that code is an
element that tells the software where to look for a media file, the software then
automatically downloads it in the background. When all the new files are read, the
podcasts are shown as available for listening in the client software. You can add
multiple podcasts to your client and it will check all the URLs for updates and
download files as appropriate. It is generally possible to download or stream the audio
files from a host web site as well.
Similar to the word radio, podcast means both the content and delivery method.
The author of the podcast is called a podcaster. When you add a podcast into yourclient software it is termed subscribing, and the generic term for software used to
subscribe is podcatcher.
Podcast Analogy
Say you subscribe to a magazine (e.g. BBC Gardeners World). You fill out your
request form and send it in. The publisher receives your request and informs the
distributor, who stores the latest copy. The distributor calls Royal Mail who picks
up a copy the same day and delivers it to your mailbox. Now here is the good bit.
You dont have to go and get it because youve got a pet that picks it up and puts it
next to your favourite armchair for when you might want to read it. Not only that,
it makes a copy and puts it in your briefcase or bag for when you are out and aboutand have time to sit down on a park bench and read it.
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Current Uses
Podcasting is finding a range of different uses.
The majority are for talk shows covering a host of different subject areas.
Radio stations are also providing their content for podcasting or download.
Some local councils are producing podcasts for self-guided walking tours.
Art galleries and museums in America, and recently the UK, are usingpodcasts to inform about exhibits and even incorporate the opinions of
visitors.
Other areas include stories for children or the visually-impaired.
It is being extensively used in US universities as a supplement to lectureprogrammes, and is finding a similar use in UK universities.
In business it is being implemented for just-in-time training.
Subscribing to Podcasts
There are two common ways to subscribe to a podcast feed. The first and easiest is to
use a directory of available podcasts to subscribe. The second is to type in the URL of
the podcast feed into your podcatcher software.
iTunes Subscribe using the Directory
iTunes has a directory integral to the software, in its iTunes Store.
Figure 1. iTunes Store Podcast section
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1. Start iTunes2. From the left hand menu, select iTunes Store
Figure 2. iTunes left hand menu
3. From the next menu to the right (iTunes STORE), select Podcasts
Figure 3. iTunes STORE menu
4. Once you are in this Podcasts section, there is a specific navigation system touse throughout. It is located near to the top of the page.
Initially there are left and right arrow buttons and
a house (Home) icon with Podcasts next to it.
The arrows work like the back and forward buttons on a web browser. Thehome icon takes you to the iTunes Store entry page. As you navigate further
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into the category structure, additional parts are added to the right of Podcasts
to form what is called a breadcrumb. You can click on any of these
breadcrumbs to get back along the chain.
Figure 4. Example of breadcrumbs
5. The screen is now split into different sectioned to help you get to the subjectsor specific podcasts you are looking for.
6. Down the left hand side is a Categories list, which you can use to drill down tosubject areas you want; and the Featured Providers where you can quickly
access podcasts or some major media providers, such as BBC, Guardian
Unlimited, Times Online, and National Geographic.
Figure 5. Categories List Figure 6. Featured Providers menu
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7. In the centre is a number of different icon driven sections, some of which youcan scroll through. These tend to feature some of the most popular podcasts or
video podcasts. Clicking an icon brings up the description page for that
podcast and allows you to subscribe.
Figure 7. Highlights icon driven menu
With the Highlights window you can scroll through the available windows of
podcasts (four windows and eight icons per window) by clicking the arrows on
the left and right of the window. At the top centre there are three circles and
one dot indicating where you are within the four windows. You can click the
See All in the top right to get a new window with more icons listed on one
page.
Figure 8. Featured Video icon driven menu
The Featured Video menu gives access to some of the popular video podcasts.
They are split into categories, which you can choose using the tabs at the top.
Other navigation is the same as the Highlights window above.
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Other areas of the central section have icons to take you to specific podcasts.
Figure 9. Icons to specific podcasts
8. On the right hand side there is a list of 20 Top Podcasts.
Figure 10. Top Podcasts featuring top 20
Clicking an item brings up the podcasts description page where you cansubscribe.
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9. Finally, above the Top Podcasts is a Quick Links box. The top two items inthis box provide other ways for you to locate podcasts of interest.
Browse provides a drill down categorised menu structure
Figure 11. iTunes Podcast Browser window
Power Search allows you to search using the podcast Title, Author, orDescription.
Figure 12. Search inputs
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When you select a podcast from the iTunes Directory youll see a page similar to:
Figure 13. Example Podcast description page
You can read information covering what the podcast is about; there may also be some
reviews. You can click on an item in the list at the bottom to hear an individualpodcast episode. If the podcast is of interest, you can click the Subscribe button
to add it to your Podcasts Library section of iTunes to receive future
editions. Currently, it is free to subscribe to many podcasts, (indicated next to the
Subscribe button). This may not always be the case. For some podcasts there is a
small charge.
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iTunes Subscribe using the URL
The other way to subscribe to podcasts is to copy the URL of the podcast feed into
your podcatcher. This may just be given in a web page, and usually ends .xml or it
could be provided via an icon you click on, similar to those shown on the left.
For example, if you want to subscribe to the BBC Radio 4 programme In Our Time,
you can go to that podcasts feed:
http://downloads.bbc.co.uk/rmhttp/downloadtrial/radio4/inourtime/rss.xml
Copy the feed URL into your podcatcher.
For iTunes:
From the Advanced menu, select Subscribe to Podcast
In the dialog box, paste the feed URL
Figure 14. iTunes Subcribe by URL
Many podcasts now have an iTunes one-click option, where you can click to
subscribe directly in iTunes to the podcast. There may even be an icon to click.
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iTunes Player
Listening to Podcasts
When you have subscribed to one or a collection of podcasts, you need to know how
to play them, download any back issues, and even unsubscribe.
Figure 15. Example of Podcasts in iTunes
In the left-hand menu, under LIBRARY clickPodcasts to access all your subscribed
podcasts.
The names of the podcast series are listed. If a appears to the left of the name then
clicking on it will expand the folder (a then appear) and the individual episodes are
listed. If there are downloaded episodes yet to be played a appears alongside the
podcast series name. You can update a podcast at any time by clicking the Refresh
button in the bottom right. Any new episodes will be downloaded. A
spinning orange icon appears alongside while a download is taking place.
Any episodes you have downloaded appear as black text. Other episodes that are
greyed out are available for you to download; simply click the icon and the
episode is downloaded. Downloaded items that have yet to be played are marked with
and once played the dot disappears. To play a podcast, double-click the dot, or the
space where the dot was to replay.
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To the right of the episode name you may see indicating a video podcast or toshow an Adobe Acrobat (.pdf) file (currently .pdf format is only supported in iTunes).
No icon indicates an audio podcast.
The other columns are:
Time, which indicates the running time of the episode; Release Date, when the author published the episode;
Description, the episode content.
Deleting Podcasts
If you no longer want to receive a podcast you can unsubscribe. Right-click on the
podcast series name and from the pop-up menu select Delete. You are asked Are you
sure you want to remove the selected podcasts and their episodes?, clickRemove.
You will then see:
Figure 16. Removing Podcast - Save Files?
Because podcasts are downloaded, the files are stored on your hard drive. These can
be quite large files so you may want to delete them from podcasts you are no longer
interested in; if so clickMove to Recycle Bin, otherwise you can keep the files.
Downloaded Files & Copying to mp3 Players
You can locate a downloaded file by right-clicking on an episode and from the pop-up
menu selecting Show in Windows Explorer. This opens the appropriate folder and
highlights the file of the episode you wanted. Dependent on your mp3 player, you can
copy the files across.
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Juice Podcatcher
Juice simply works as a podcatcher. Unlike iTunes, Juice requires an external media
player to play the podcasts.
The Juice software opens and looks something like this:
Figure 17. Juice software opening
You are automatically put in the Subscriptions section (tab) and there may be two
channels already subscribed, as in the example screen-shot above.
Subscribing to a Podcast using Directories
Clicking the Podcast directory tab to see a list of directories:
Figure 18. Juice Podcast directory tab
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Clicking on any of the directory names downloads its content to list available
podcasts. Click on a podcast, and its URL appears in the box at the top. Click the Add
button and an Add a Feed dialog box opens; click the Save button. The podcast is
added under the Subscriptions tab.
Subscribing to a Podcast using the URLIf you know the URL of the podcast feed, you can use that to subscribe directly.
Click on the Add New Feed button.
The Add a Feed dialog box opens. In the URL field paste the xml address copied
from the podcast website. For example, to subscribe to BBC Radio 4 Choice podcast
copy the URL from the BBC website, or simply type it in:
http://downloads.bbc.co.uk/rmhttp/downloadtrial/radio4/radio4choice/rss.xml
Figure 19. Juice subscribe by URL
Click the Save button. BBC Radio 4 Choice is now added to your subscriptions.
Figure 20. Radio 4 Choice Podcast added
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Feed Administration
A podcast feed can be removed by highlighting it and clicking the Remove selected
feed button.
Details of a highlighted podcast feed, like its name and URL, are available by clicking
the Properties button.
A highlighted feed can be checked to see if there are any new podcast items for
download by clicking the Check selected feed button.
Copying Files to mp3 Players
You can use the synch function in the mediaplayer software you are using to
synchronize your mp3 player.
Or, if you wanted to copy these podcast items onto your mp3 player, you can locate
the downloaded files by right-clicking on the feed name for a pop-up window, andselect Open downloads folder. The folder opens and you can copy the files to your
mp3 player.
Cleanup
These mp3 files may be very large, so you need to clean up any files you no longer
need.
Click on the Cleanup tab
Click on the drop-down menu arrow below Select a feed and choose the feedyou want to clean up, and then click the Refresh button
The items delivered in that feed are listed Select the ones you want to delete by checking the box alongside, or click the
Select all button to check all of them
Click the Delete button and the files are deleted
Figure 23. Cleaning up unwanted Podcasts
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New Alternatives
There are now other ways of accessing podcasts. For example, btpodshow.com a
major company in the whole podcast phenomenon has developed an online content
directory and player system.
Links
BBC Trial
BBC Podcast Trial
http://www.bbc.co.uk/radio/downloadtrial/
Podcatcher Software
Apple iTunes Podcast Page
http://www.apple.com/itunes/store/podcasts.html
Juice Podcatcher Software
http://juicereceiver.sourceforge.net/index.php
Directories
Podcast Alleyhttp://www.podcastalley.com/
Podcast Directory
http://www.podcast.net/
Podcasting News Directory List
http://www.podcastingnews.com/topics/Podcast_Directory.html