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Caster: Mobile Studio

[iTunes Link]

Podcasting 101

Podcasts consist of two main components, The RSS feed, and the media. The RSS feed is an XML file that contains a pre-defined set of meta data that is used by podcast player apps and services to keep track of information about the podcasts, author, copyright information and information about the media itself. The RSS feed contains a list of all the issues, where the media is downloaded, their descriptions, and other information your audience would want. The media and RSS files are hosted anywhere on the web from any web-accessible service.

view the Wikipedia article

RSS Feed

Global Podcast Data

This information is constant for all issues. It includes the podcast name, a subtitle, owner, contact info, an icon and other info.

Issue Podcast Data

The issue data includes information about the content of the media itself.


This page lists all the past issues recorded in Caster. You can tap the + to create a new issue or swipe across to delete. When creating a new issue, after you select it, you should fill out the issue RSS information.

Creating Media

You have several tools for creating your media. You can record clips, import from your library, and mix them all together.


A clip is a single contiguous piece of media. You don't have to create your entire work in one sitting. When the media is rendered, Caster will mix all the individual clips into a single coherent media file.

Clip Editor

Tapping on the 'Edit Clips' button brings you to the clip editor page. you can drag the clips around visually and rearrange or even overlap clips. Caster does all the magic to make it all one media file. Tapping the 'Pack Clips' button removes all the empty time between clips so you don't have to stress to stitch your clips together seamlessly.


Tapping the record button prompts you to start speaking and immediately starts recording. To end the clip, tap pause. tapping stop sets the position pointer to 0:00. Tapping stop again sets the position pointer to the end of the media.


Tapping the import button brings up a dialog to choose media already on your device. Note: to import audio, you must already have the media downloaded to your device. Having it in iTunes match is not enough. You must actually have it downloaded.


Publishing is a pretty important piece of your podcast experience. After all, you cant share yourself if you can't get your media to your audience. Sadly, this is the piece that most people have trouble with.

Publish Setup

Tap the setup button on the publish screen to open the setup dialog.

Audio Format

First you must choose your media formats. It is highly recommended you choose m4a.


Next, you must add your publishers. If all else fails, choose Export. You can have any number of publishers.


This will send your media, icon, and RSS feed to an FTP server. Most web hosts offer FTP access.


Email publishing will attempt to send your media via an email. Be aware that most mail servers will reject email attachments over a certain size.


Twitter publishing will only send a link and notification of a podcast update.


Export is the most versatile method of getting your media out there. The drawback is that there is no way for Caster to be able to predict where your media will be on the web. You will have to manually modify the links in the RSS feed. This will push the media, icon and rss file to another app on your device; for example dropbox.


When you tap the 'Render' button, Caster will take all your clips and combine them into a single media file to be published.


Tapping the 'Publish' button will automatically render if there have been any changes to the clips or clip layout and proceed to push the files to all of the publishers configured.

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