Podcast

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Révision datée du 1 avril 2018 à 06:43 par Xtof (discussion | contributions)

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Un podcast est une série épisodique de posts audio et/ou video qui peut être abonnée et téléchargée pour une écoute/visualition hors-ligne.

Pourquoi

Pourquoi devriez-vous avoir un podcast ? Quelques personnes aiment en écouter durant :

  • la marche / la course à pied / l'exercice en général
  • la conduite, par ex durant un voyage
  • une commutation (par n'importe quelle méthode)

Comment

iTunes (propriétaire) et RSS/Atom sont les moyens dominants de publier et consommer des flux podcast.

Comment publier

Publier un RSS/Atom avec podcast audio inside media enclosures, and/or use iTunes.

Comment consommer

Podcasts are RSS/Atom/XML feeds where, normally, the media of the podcast is linked to with an enclosure tag eg: <enclosure url="http://example.com/podcast01.mp3" length="259429328" type="audio/mpeg" />

However, most podcasts also include a number of other iTunes specific tags to ensure itunes will subscribe to them easily, eg <itunes:summary>. Some of these itunes tags are usually just replications of the data in other tags in the item.

Most podcast players both consume podcast feeds and play podcast audio. iTunes is the primary player on OS X and iOS. Other platforms have other players, e.g. BeyondPod and AntennaPod on Android. (See also podcatcher)

Some podcasts only publish on iTunes. You can subscribe to them in other players with hacks like Feed Flipper.

Exemples IndieWeb

IndieWeb examples of personal podcast publishing and consuming

Ben Werdmuller

portrait Ben Werdmüller has published podcasts on werd.io using Known

Acegiak

portrait Ashton McAllan consumes podcasts through her reader Whisperfollow which aggregates RSS and, if they are marked up with podcast media tags, embeds the media for consumption and provides a link to save or open in another window

gRegor Morrill

portrait gRegor Morrill has published a podcast on http://latenighttoast.com using ProcessWire

  • First 2015-05-07: http://latenighttoast.com/episodes/001-episode-305/
  • Includes h-feed microformats
  • Generating the RSS feed [1] on the same domain so that we can control the canonical URL of the feed after submitting it to iTunes.
  • Using archive.org to host the MP3s.
  • Using URLs on the same domain that redirect to the archive.org MP3s, again so that we control the canonical URL of the MP3. This also gives us the ability to roughly track the number of streams/downloads of each episode.

Jeenas Excellent Encounters

Modèle:Jeena is publishing a podcast on https://jeena.net/pods

  • using his own implementation with Ruby on Rails
  • It's marked up with a h-feed h-entry and u-audio
  • It also has a RSS feed for iTunes and other podcast managers

Marty McGuire

portrait Marty McGuire is publishing a podcast at https://wehavetoask.com/

  • static site generated with Hugo
  • index marked up as an h-feed with h-entry and u-audio
  • Build process also creates an RSS feed for iTunes and other podcast managers

Marty also hosts an IndieWeb-centric podcast This Week in the IndieWeb

Colin Walker

portrait Colin Walker is publishing a twice-weekly microcast at https://colinwalker.blog/podcast

  • self-hosted using WordPress
  • episodes approx 3 minutes long, recorded on iPhone and posted using Workflow
  • includes h-feed, h-entry and u-audio markup
  • local RSS feed and via iTunes

Aaron Parecki

portrait Aaron Parecki publishes a podcast at https://percolator.today

  • self-hosted using home-built tools
  • episodes are about 3-6 minutes long
  • marked up with h-feed, h-entry and u-audio
  • has a local RSS feed published via iTunes and other podcast directories

Autres exemples

Microcasts

For additional examples of short podcasts, see the microcast page.

Article principal : microcast

Wavelist

Wavelist is a collection of podcast episodes curated into playlists by individuals.

Chris Aldrich

Because of the way portraitChris Aldrich formats his listen posts (using the Post Kinds Plugin) and includes html audio tags marked up with u-audio, the feed for these posts at http://boffosocko.com/kind/listen/feed can be subscribed to like a traditional podcast. Because this feed is meant more to help other's discovery of content, he calls this non-traditional podcast a "faux-cast". More details here.

Ryan Barrett

Modèle:Snarfed publishes a list of podcasts he listens to:

Exemples de silos

Cast

  • Cast provides a paid service to allow you to record, edit, publish, and host your podcast.

Anchor.fm

Distribution

There are number of services for distributing your podcast without having to make copies (thus different from POSSE / syndication in general).

Huffduffer

Huffduffer is a bookmarking service for podcasts and audio / music / speech in general.

To submit your podcast to Huffduffer, create an account, submit your podcast with various tags.

Users of Huffduffer can then find your podcast by tag.

iTunes

iTunes is a service and application from Apple for music, video, podcasts and other multimedia. Podcasts distributed by iTunes are made easily discoverable and subscribable in:

  • MacOS "iTunes" application
  • iOS "Podcasts" application

Submitting to iTunes for distribution

See: How to Submit a Podcast at apple.com

When submitting a podcast URL to iTunes, be sure to submit a URL on a domain that you control. For example, if using Libsyn to host your podcast mp3s, don't submit the RSS URL that they provide. Instead, host a page on your domain that sends a "302 Found" temporary redirect to the Libsyn URL.

The HTTP client that Apple uses to fetch your podcast feed does not support SNI or Letsencrypt certificates. If you don't have the ability to host an https URL on a dedicated IP address with an SSL cert from a supported CA, then you will have to give Apple a non-https URL for your podcast feed.

Changing podcast hosting providers

Podcast URL under your control

If your podcast URL is on your own domain, then you can just change the 302 redirect to point to the new hosting provider.

Podcast URL not under your control

If your podcast URL is not on your own domain, then the ability to change your URL is limited by whether your current host allows you to.

Libsyn has a writeup of how to change your feed URL.

Essentially the process involves setting an additional property in the feed URL. 

<itunes:new-feed-url>http://newsite.example.com/podcast.rss</itunes:new-feed-url>

Services

Unmung

Article principal : unmung

unmung will turn podcast feeds into playable HTML5 audio with microformats markup eg In Our Time

Brainstorming

How to podcast with h-feed

portrait Aaron Parecki has an experimental podcast setup with h-feed.

  • http://transportini.com/
    • The top-level object is an h-feed with the podcast description
    • Each episode is an h-entry child of the h-feed
    • Each episode h-entry has the following properties:
      • name - the episode name
      • length - duration of the episode, e.g. "PT12M40S"
      • size - the file size of the audio file "17.43mb"
      • audio - the link to the mp3 file of the episode
      • url - permalink to the episode's HTML page
      • published
      • summary - episode summary, intended to be displayed in players

portrait Marty McGuire publishes a podcast with h-feed.

  • https://wehavetoask.com/
    • The top-level object is an h-feed. The podcast description is contained in the author property of the h-feed as an h-card:
      • url
      • name - name of the podcast
      • note - summary description, similar to what appears in a podcast directory
      • photo - poster image similar to what appears in a podcast directory
    • Each episode is an h-entry child of the feed, with the following properties:
      • name - title of the episode
      • summary - episode summary, intended to be displayed in players
      • audio - the link to the mp3 file of the episode
      • content - HTML with the summary text and <audio> element
      • url - permalink to the episode's HTML page
      • published

portrait gRegor Morrill publishes a podcast with h-feed:

  • http://latenighttoast.com/
    • The top-level object is an h-feed with properties
      • name
      • url
      • author - nested h-card
      • summary - podcast summary, similar to what appears in podcast directory
      • photo - poster image similar to what appears in a podcast directory
    • Each episode is an h-entry child of the h-feed
    • Each episode h-entry has the following properties:
      • name - the episode name
      • length - duration of the episode, e.g. "PT1H7M59S"
      • size - the file size of the audio file "62.2 MB"
      • audio - the link to the mp3 file of the episode
      • url - permalink to the episode's HTML page
      • dt-published
      • summary - episode summary, intended to be displayed in players
      • content - HTML contents of episode page. Includes summary + <audio> + length + download link. May be redundant, but may also serve as a fallback for readers that don't have special handling for audio posts

Voir aussi

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