Thursday, March 8, 2007

Podcasting... yay!! Sounds cool!!!

Yup yup.. actually I was quite busy during the recess week, since I had several things to settle about my Final Year Project. Hehehe. That's why I update this blog just before the week 8 session starts :p..

Last 2 week, we had a discussion about Podcast. Actually I have already heard this term quite frequently, however I didn't know the exact meaning before I attended this session. :p So, what is podcast??

Podcast is...

In the formal definition, podcast is a method publishing files to the internet, allowing users to subscribe to a feed and receive new files automatically by subscription, usually at no cost. It first became popular in late 2004, commonly used for large audio files. The term 'podcast' itself is derived from Apple's popular product, iPod. More detailed information about the name can be found here. :D
iPod by Apple

Podcast is distinguished from other digital audio formats by its ability to be downloaded automatically, using software capable of reading feed formats such as RSS or Atom.

Okay, definition will become clearer if it is supported by some examples. Here are some of the podcast examples, take a look at them
Podcast potential...

In the lesson, we discussed about podcast's abilities and potential. Eventually, we conclude that podcast has great potential to enhance our education and learning experiences, for example:
  • portable, can be played anytime anywhere, as long as you download the file and save it in your own computer
  • suitable for self-paced learning, student can arrange their convenient and best time to study:D
  • provide flexibility to the student
  • it enhances our learning experience
Here is the example of podcast for education, The Education Podcast Network

How to....

Let's go to practical things. How-to section!!!!. :D
This how-to section will teach you how to make a podcast. Sounds fun right??!! :D

First you must create your own audio content. In this step you need computer, working mic, and sound editor software. Free sound editor software like Audacity is quite good for your first podcast:D. You can download Audacity here.

Audacity is a freeware, so you don't need to pay to use it :D

Save your finished audio show at maximum quality in the native format of your audio application. That way you can go back and edit it or reuse it and you'll have a good version.

Convert the file to MP3 format. Once you have your audio content, you need to save it in MP3 format. MP3 is the defacto standard format for podcasts. Stick with MP3 unless you've got a very good reason for using another format. Using anything but MP3 will mean that some users may not be able to use your podcast.

Use the minimum bit rate that provide good results. Here are some suggested settings:

  • 48 - 56k Mono - sermons, audio books, talk radio
  • 64k+ Stereo - music, music & talk combinations
  • 128k Stereo - good quality music

Publish your MP3 - save your MP3 files to your web server, and test them with any MP3 player. The files can go anywhere on your site, but you may want to put all of them into one directory, so they are easy to find and manage.

Create your podcast newsfeed - Podcast feeds are RSS files that describe your podcast, along with information for each show. An RSS file is just a text file that links to your MP3 file.

For a brief introduction of to RSS, check the article Understanding RSS Feeds. For details on RSS, check the RSS 2.0 Specification. The specification includes an example file that can be used as a starting point for creating new RSS files.

You can use any text editor to create an RSS news feed. However, most podcasters use blogging programs or other applications to automatically generate newsfeeds.

If you have a blogging tool that lets you reference enclosures, just create an item for each MP3 file you publish, and use URL of the audio content as your enclosure. If your blogging tool doesn't support enclosures yet, don't worry, it will soon because of the popularity of podcasts

In the meantime, you can edit your RSS file with any text editor to add the enclosure tag. Here's an example from the Trade Secrets podcast newsfeed:

RSS newsfeeds normally feature news Items that contain a Title, Link, and Description. Each item in a news feed provides meta-information about a URL on the web. In the case of a podcast newsfeed, each Item describes the content of an audio file referenced by the enclosure URL. Save your RSS file with a .rss or .xml extension.

Normally, you'll want to have one news feed that contains all of your recent podcasts, ordered from newest to oldest.

Publish your podcast news feed - transfer your podcast RSS file to your webserver, like you would any other content. Validate it using an online RSS validator. If the podcast news feed is valid, it's ready to be published to the web.

Hehehehe... That's all for this session. Enjoy podcasting!!!

1 comment:

Jun said...

i like ur blog which teach me to use the technology..