Today whatever I read about podcasting.. here is what I have interpreted..
I shall update and detail it even more as i develop a greater understanding of the topic..
Friday, April 27, 2007
The machine is using US
I came across this incredible video on Web 2.0 by Michael Wesch Assistant Professor of Cultural Anthropology Kansas Statehe has done wonderful digital ethnography..
really nice instructions.. is so clear and influencing.. leaves an impact which is sure to last long.. guides us so well through the flow, as well the visual cues are perfect..
raises thought provoking issues :copyright, identity, authority,privacy ..
really nice instructions.. is so clear and influencing.. leaves an impact which is sure to last long.. guides us so well through the flow, as well the visual cues are perfect..
raises thought provoking issues :copyright, identity, authority,privacy ..
What is a podcast
A podcast is a digital media file, or a series of such files, that is distributed over the Internet using syndication feeds, for playback on portable media players and personal computers. A podcast is a specific type of webcast which, like 'radio', can mean either the content itself or the method by which it is syndicated; the latter is also termed podcasting. The host or author of a podcast is often called a podcaster. The term "podcast" is a portmanteau of the name of Apple's portable music player, the iPod, and broadcast[1]; a pod refers to a container of some sort and the idea of broadcasting to a container or pod describes the process of podcasting. More about the name itself can be found in the history of podcasting article.
so podcast, is a type of webcast..
here goes the mechanics as per wikipedia
The publish/subscribe model of podcasting is a version of push technology, in that the information provider chooses which files to offer in a feed and the subscriber chooses among available feed channels. While the user is not "pulling" individual files from the Web, there is a strong "pull" aspect in that the receiver is free to subscribe to (or unsubscribe from) a vast array of channels. Earlier Internet "push" services (e.g., PointCast) allowed a much more limited selection of content.
Podcasting is an automatic mechanism whereby multimedia computer files are transferred from a server to a client, which pulls down XML files containing the Internet addresses of the media files. In general, these files contain audio or video, but also could be images, text, PDF, or any file type.
The content provider begins by making a file (for example, an MP3 audio file) available on the Internet. This is usually done by posting the file on a publicly available webserver; however, BitTorrent trackers also have been used, and it is not technically necessary that the file be publicly accessible. The only requirement is that the file be accessible through some known URI (a general-purpose Internet address). This file is often referred to as one episode of a podcast.
The content provider then acknowledges the existence of that file by referencing it in another file known as the feed. The feed is a list of the URLs by which episodes of the show may be accessed. This list is usually published in RSS format (although Atom can also be used), which provides other information, such as publish date, titles, and accompanying text descriptions of the series and each of its episodes. The feed may contain entries for all episodes in the series, but is typically limited to a short list of the most recent episodes, as is the case with many news feeds. Standard podcasts consist of a feed from one author. More recently multiple authors have been able to contribute episodes to a single podcast feed using concepts such as public podcasting and social podcasting.
The content provider posts the feed on a webserver. The location at which the feed is posted is expected to be permanent. This location is known as the feed URI (or, perhaps more often, feed URL). The content provider makes this feed URI known to the intended audience.
A consumer uses a type of software known as an aggregator, sometimes called a podcatcher or podcast receiver, to subscribe to and manage their feeds.
A podcast specific aggregator is usually an always-on program which starts when the computer is started and runs in the background. They work exactly like any newsreader each at a specified interval, such as every two hours. If the feed data has substantively changed from when it was previously checked (or if the feed was just added to the application's list), the program determines the location of the most recent item and automatically downloads it to the user's portable media players; 80% are consumed on the PC onto which they are downloaded, or deleted from the PC without being listened to.[2] Many applications also automatically transfer the newly downloaded episodes available to a user's portable media player.
The downloaded episodes can then be played, replayed, or archived as with any other computer file or stored to an MP3 player.
To conserve bandwidth, users may opt to search for content using an online podcast directory. Some directories allow people to listen online and initially become familiar with the content provided from an RSS feed before deciding to subscribe. For most broadband users, bandwidth is generally not a major consideration; it could fairly be stated that podcasting itself is a technology that came with the increases in global bandwidth and broadband popularity.
so podcast, is a type of webcast..
here goes the mechanics as per wikipedia
The publish/subscribe model of podcasting is a version of push technology, in that the information provider chooses which files to offer in a feed and the subscriber chooses among available feed channels. While the user is not "pulling" individual files from the Web, there is a strong "pull" aspect in that the receiver is free to subscribe to (or unsubscribe from) a vast array of channels. Earlier Internet "push" services (e.g., PointCast) allowed a much more limited selection of content.
Podcasting is an automatic mechanism whereby multimedia computer files are transferred from a server to a client, which pulls down XML files containing the Internet addresses of the media files. In general, these files contain audio or video, but also could be images, text, PDF, or any file type.
The content provider begins by making a file (for example, an MP3 audio file) available on the Internet. This is usually done by posting the file on a publicly available webserver; however, BitTorrent trackers also have been used, and it is not technically necessary that the file be publicly accessible. The only requirement is that the file be accessible through some known URI (a general-purpose Internet address). This file is often referred to as one episode of a podcast.
The content provider then acknowledges the existence of that file by referencing it in another file known as the feed. The feed is a list of the URLs by which episodes of the show may be accessed. This list is usually published in RSS format (although Atom can also be used), which provides other information, such as publish date, titles, and accompanying text descriptions of the series and each of its episodes. The feed may contain entries for all episodes in the series, but is typically limited to a short list of the most recent episodes, as is the case with many news feeds. Standard podcasts consist of a feed from one author. More recently multiple authors have been able to contribute episodes to a single podcast feed using concepts such as public podcasting and social podcasting.
The content provider posts the feed on a webserver. The location at which the feed is posted is expected to be permanent. This location is known as the feed URI (or, perhaps more often, feed URL). The content provider makes this feed URI known to the intended audience.
A consumer uses a type of software known as an aggregator, sometimes called a podcatcher or podcast receiver, to subscribe to and manage their feeds.
A podcast specific aggregator is usually an always-on program which starts when the computer is started and runs in the background. They work exactly like any newsreader each at a specified interval, such as every two hours. If the feed data has substantively changed from when it was previously checked (or if the feed was just added to the application's list), the program determines the location of the most recent item and automatically downloads it to the user's portable media players; 80% are consumed on the PC onto which they are downloaded, or deleted from the PC without being listened to.[2] Many applications also automatically transfer the newly downloaded episodes available to a user's portable media player.
The downloaded episodes can then be played, replayed, or archived as with any other computer file or stored to an MP3 player.
To conserve bandwidth, users may opt to search for content using an online podcast directory. Some directories allow people to listen online and initially become familiar with the content provided from an RSS feed before deciding to subscribe. For most broadband users, bandwidth is generally not a major consideration; it could fairly be stated that podcasting itself is a technology that came with the increases in global bandwidth and broadband popularity.
Starting off
this blog will have the online documentation of my second diploma project ..
After going the through the website of sacred world.. i proposed some changes and also proposed to make an "online exhibition" in the virtual space, so that those who cannot come and see the existing museums and art projects can benifit from the content online.
Ranjit was already having something of this sort in his mind, and said he was interested in extending the website.. so that it also does webcasts and podcasts.
His enthusiasm about the whole thing and an additional brilliant concept of his which goes with the podcasting world has encouraged me to look forward to this project.
As the first project is in the initial stages of its implementation..
i am also researching at the same time for this project so that both can be finished in time.
After going the through the website of sacred world.. i proposed some changes and also proposed to make an "online exhibition" in the virtual space, so that those who cannot come and see the existing museums and art projects can benifit from the content online.
Ranjit was already having something of this sort in his mind, and said he was interested in extending the website.. so that it also does webcasts and podcasts.
His enthusiasm about the whole thing and an additional brilliant concept of his which goes with the podcasting world has encouraged me to look forward to this project.
As the first project is in the initial stages of its implementation..
i am also researching at the same time for this project so that both can be finished in time.
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