A podcast is a program made available in digital format for download over the Internet.[1][2][3] For example, an episodic series of digital audio files that users can download to a personal device to listen to at a time of their choosing. Podcasts are primarily an audio medium, but some distribute video, either as their primary content or as a supplement to audio.[4]
A podcast series usually features one or more recurring hosts engaged in a discussion about a particular topic or current event. Discussion and content within a podcast can range from carefully scripted to completely improvised. Podcasts combine elaborate and artistic sound production with thematic concerns ranging from scientific research to slice-of-life journalism. Many podcast series provide an associated website with links and show notes, guest biographies, transcripts, additional resources, commentary, and occasionally a community forum dedicated to discussing the show's content.
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The cost to the consumer is low, and many podcasts are free to download. Some podcasts are underwritten by corporations or sponsored, with the inclusion of commercial advertisements. In other cases, a podcast could be a business venture supported by some combination of a paid subscription model, advertising or product delivered after sale. Because podcast content is often free, podcasting is often classified as a disruptive medium, adverse to the maintenance of traditional revenue models.
Podcasting is the preparation and distribution of audio files using RSS feeds to the devices of subscribed users. A podcaster normally buys this service from a podcast hosting company such as SoundCloud or Libsyn. Hosting companies then distribute these audio files to streaming services, such as Apple and Spotify, which users can listen to on their smartphones or digital music and multimedia players.
"Podcast" is a portmanteau of "iPod" and "broadcast".[6][7][8] The earliest use of "podcasting" was traced to The Guardian columnist and BBC journalist Ben Hammersley,[9] who coined it in early February 2004 while writing an article for The Guardian newspaper.[10] The term was first used in the audioblogging community in September 2004, when Danny Gregoire introduced it in a message to the iPodder-dev mailing list,[11][12] from where it was adopted by podcaster Adam Curry.[13] Despite the etymology, the content can be accessed using any computer or similar device that can play media files.[citation needed] The term "podcast" predates Apple's addition of podcasting features to the iPod and the iTunes software.[14]
In September 2000,[15] early MP3 player manufacturer i2Go offered a service called MyAudio2Go.com which allowed users to download news stories for listening on a PC or MP3 player. The service was available for about a year until i2Go's demise in 2001.[16]
In October 2000, the concept of attaching sound and video files in RSS feeds was proposed in a draft by Tristan Louis.[17] The idea was implemented by Dave Winer, a software developer and an author of the RSS format.[18]
Podcasting, once an obscure method of spreading audio information, has become a recognized medium for distributing audio content, whether for corporate or personal use. Podcasts are similar to radio programs in form, but they exist as audio files that can be played at a listener's convenience, anytime and anywhere.[19]
The first application to make this process feasible was iPodderX, developed by August Trometer and Ray Slakinski.[20] By 2007, audio podcasts were doing what was historically accomplished via radio broadcasts, which had been the source of radio talk shows and news programs since the 1930s. This shift occurred as a result of the evolution of internet capabilities along with increased consumer access to cheaper hardware and software for audio recording and editing.[19]
In August 2004, Adam Curry launched his show Daily Source Code. It was a show focused on chronicling his everyday life, delivering news, and discussions about the development of podcasting, as well as promoting new and emerging podcasts. Curry published it in an attempt to gain traction in the development of what would come to be known as podcasting and as a means of testing the software outside of a lab setting. The name Daily Source Code was chosen in the hope that it would attract an audience with an interest in technology.[21][22] Daily Source Code started at a grassroots level of production and was initially directed at podcast developers. As its audience became interested in the format, these developers were inspired to create and produce their own projects and, as a result, they improved the code used to create podcasts. As more people learned how easy it was to produce podcasts, a community of pioneer podcasters quickly appeared.[23]
In June 2005, Apple released iTunes 4.9, which added formal support for podcasts, thus negating the need to use a separate program in order to download and transfer them to a mobile device. Although this made access to podcasts more convenient and widespread, it also effectively ended advancement of podcatchers by independent developers. Additionally, Apple issued cease and desist orders to many podcast application developers and service providers for using the term "iPod" or "Pod" in their products' names.[24]
As of early 2019, the podcasting industry still generated little overall revenue,[25] although the number of persons who listen to podcasts continues to grow steadily. Edison Research, which issues the Podcast Consumer quarterly tracking report estimated that 90 million persons in the U.S. had listened to a podcast in January 2019.[26] As of 2020, 58% of the population of South Korea and 40% of the Spanish population had listened to a podcast in the last month. 12.5% of the UK population had listened to a podcast in the last week and 22% of the United States population listens to at least one podcast weekly.[27] The form is also acclaimed for its low overhead for a creator to start and maintain their show, merely requiring a microphone, a computer or mobile device, and associated software to edit and upload the final product. Some form of acoustic quieting is also often utilised. Podcast creators tend to have a good listener base because of their relationships with the listeners.[28]
Between February March 10 and 25, 2005, Shae Spencer Management, LLC of Fairport, New York filed a trademark application to register the term "podcast" for an "online prerecorded radio program over the internet". On September 9, 2005, the United States Patent and Trademark Office (USPTO) rejected the application, citing Wikipedia's podcast entry as describing the history of the term. The company amended their application in March 2006, but the USPTO rejected the amended application as not sufficiently differentiated from the original. In November 2006, the application was marked as abandoned.[29]
On September 26, 2004, it was reported that Apple Inc. had started to crack down on businesses using the string "POD", in product and company names. Apple sent a cease and desist letter that week to Podcast Ready, Inc., which markets an application known as "myPodder".[30] Lawyers for Apple contended that the term "pod" has been used by the public to refer to Apple's music player so extensively that it falls under Apple's trademark cover.[31] Such activity was speculated to be part of a bigger campaign for Apple to expand the scope of its existing iPod trademark, which included trademarking "IPOD", "IPODCAST", and "POD".[32] On November 16, 2006, the Apple Trademark Department stated that "Apple does not object to third-party usage of the generic term 'podcast' to accurately refer to podcasting services" and that "Apple does not license the term". However, no statement was made as to whether or not Apple believed they held rights to it.[33]
Personal Audio, a company referred to as a "patent troll" by the Electronic Frontier Foundation (EFF),[34] filed a patent on podcasting in 2009 for a claimed invention in 1996.[35] In February 2013, Personal Audio started suing high-profile podcasters for royalties,[34] including The Adam Carolla Show and the HowStuffWorks podcast.[36] In October 2013, the EFF filed a petition with the US Trademark Office to invalidate the Personal Audio patent.[37] On August 18, 2014, the EFF announced that Adam Carolla had settled with Personal Audio.[38] Finally, on April 10, 2015, the U.S. Patent and Trademark Office invalidated five provisions of Personal Audio's podcasting patent.[39]
A podcast generator maintains a central list of the files on a server as a web feed that one can access through the Internet. The listener or viewer uses special client application software on a computer or media player, known as a podcast client, which accesses this web feed, checks it for updates, and downloads any new files in the series. This process can be automated to download new files automatically, so it may seem to listeners as though podcasters broadcast or "push" new episodes to them. Podcast files can be stored locally on the user's device, or streamed directly. There are several different mobile applications that allow people to follow and listen to podcasts. Many of these applications allow users to download podcasts or stream them on demand. Most podcast players or applications allow listeners to skip around the podcast and to control the playback speed.[40] Much podcast listening occurs during commuting; because of restrictions on travel during the COVID-19 pandemic, the number of unique listeners in the US decreased by 15% in the last three weeks of March 2020.[41].
Podcasting has been considered a converged medium[42] (a medium that brings together audio, the web and portable media players), as well as a disruptive technology that has caused some individuals in radio broadcasting to reconsider established practices and preconceptions about audiences, consumption, production and distribution.[43] 152ee80cbc
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