haudio

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<entry-title>hAudio 0.9.1</entry-title>
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{{Template:DraftSpecification}}
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{{TOC-right}}
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http://farm2.static.flickr.com/1216/604867362_da0921136a_o.png
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[[haudio|hAudio]] is a simple, open, distributed format, suitable for embedding information about audio recordings in (X)HTML, Atom, RSS, and arbitrary XML. hAudio is one of several [[microformats]] open standards. This page and Microformat is in the public domain.
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== hAudio Microformat Draft Specification ==
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=== Editors ===
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* [[User:ManuSporny | Manu Sporny]] ([http://www.bitmunk.com/ Bitmunk] - [http://blog.digitalbazaar.com Digital Bazaar], Inc.)
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* [[ user:WebOrganics | Martin McEvoy ]]
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=== Authors ===
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* [[User:ManuSporny | Manu Sporny]]
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* [[ user:WebOrganics | Martin McEvoy ]]
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=== Contributors===
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[[User:ManuSporny | Manu Sporny]], [[ user:WebOrganics | Martin McEvoy ]], [[  User:AlexandreVandeSande | Alexandre Van De Sande ]], Michael Johnson, Dave Longley, Brian Suda, Ben Wiley Sittler, Scott Reynen, Frances Berriman, James Craig, David Janes, [[User:AndyMabbett|Andy Mabbett]], Danny Ayers, Rudy Desjardins, Edward O'Connor, Ryan King, Chris Griego, Brad Hafichuk, Tantek Çelik, Colin Barrett, Joe Andrieu, Michael Smethurst, [[User:ChrisNewell | Chris Newell]], Julian Stahnke, Justin Maxwell, Paul Wilkins and David I. Lehn.
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Microformats [[#Copyright]] and [[#Patents]] statements apply.
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== Introduction ==
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It is difficult for a browser to extract semantic information about an audio recording described on a web page. Metadata such as speaker, musician, publisher, label, title of the work, release date, acquisition link, related image artwork and tags provide relevant context for the audio recording.
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Having such information marked up can provide a number of benefits to the viewer. If a web browser understands that a particular web page contains a song performed by an artist, it can produce richer interactions. For example, specific searches may be performed for artists and songs via general search services such as Google and Wikipedia. Specific search services may also be queried such as MusicBrainz, The Internet Archive, FreeDB, or Bitmunk. Additionally, classification by crawlers can become more accurate. If there are 20 tracks found on a page done by the same artist, and that content consumes a significant portion of the page, it can be assumed that the page is not only about music, but also about a particular artist.
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In order to enable and encourage the sharing, distribution, syndication, and aggregation of audio content, the authors propose the hAudio microformat, an open standard for distributed audio metadata. The authors have researched both numerous [[audio-info-examples]] in the wild and earlier attempts at [[audio-info-formats]], and have designed hAudio around a simple minimal schema for audio content.  Feedback is encouraged on the [[haudio-feedback|hAudio feedback]] page.
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=== Inspiration and Acknowledgments ===
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Many thanks to the various individuals that did research and proposed ideas and discussion related to media info and audio info in general. Among the many participants are [[RodBegbie]], Dean Hudson, [http://tantek.com/log/ Tantek Çelik], [http://napsterization.org/stories/ Mary Hodder], [http://joshkinberg.com/blog/ Joshua Kinberg], ChrisMessina, and [http://onlisareinsradar.com/ Lisa Rein].
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=== Scope ===
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Audio content consistently share several common fields.  Where possible hAudio has been based on this minimal common subset.
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=== Out of scope ===
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Fields that are type-specific have been omitted from hAudio.  It is important that hAudio be kept simple and minimal from the start.  Additional features can be added as deemed necessary by practical implementation experience.
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The concept of a universal audio identifier, that is, how to identify the same audio album, song, speech, or podcast across different music and audio sites, though something very useful to have, is outside the scope of this format.
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== Format ==
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{{rfc-2119-intro}}
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=== In General ===
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The hAudio format is based on a set of fields common to numerous audio content sites and formats in use today on the web.  Where possible field names have been chosen based on those defined by the related [[hcard|hCard]] standards.
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=== Schema ===
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The hAudio schema consists of the following:
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* hAudio ('''<code>haudio</code>''')
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** '''fn''' or/and '''album''' required. text.
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** '''contributor'''. optional. using text or [[hCard]].
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** '''duration'''. optional. ISO-8601 time duration. (re-used from [[hcalendar]]).
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** '''item''' optional. using text or multiple properties from [[hAudio]].
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** '''position''' optional. text.
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** '''category'''. optional. text.
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** '''published'''. optional.
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** '''photo'''. optional. using any element containing a URL, such as IMG.
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** '''description''' optional. text.
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** '''sample''' (rel). optional. sample file/stream using [[rel-design-pattern]] with <code>sample</code> as the <code>mf-rel-value</code>.
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** '''enclosure''' (rel). optional. full download of file using [[rel-enclosure]].
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** '''payment''' (rel). optional. link to purchase process using [[rel-payment]].
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** '''price''' optional. Using the sub properties '''currency''' and '''amount'''.
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=== Field details ===
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The fields of the hAudio schema represent the following:
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==== hAudio ====
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An hAudio is used to identify and describe metadata associated with an audio recording.
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* an hAudio element is identified by class name <code>haudio</code>
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==== fn ====
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The name of a single audio recording is a short textual description used to identify the work among interested parties. This can be the name of a speech, song name, or short description regarding a sound effect.
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* The element is identified by the class name <code>fn</code>.
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* hAudio {{must}} have <code>fn</code> or/and  <code>album</code>.
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==== Album ====
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The title of a collection of audio recordings, such as those that are represented as a CD, album or LP. The text should be a short textual description used to identify the work among interested parties.
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* The element is identified by the class name <code>album</code>.
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* hAudio {{must}} have either <code>album</code> or <code>fn</code> or both.
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==== Item ====
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A container for another hAudio item, which MUST be considered a part of the parent audio recording. An example of an item that is part of an hAudio would be a track in an audio album, a aria in an Opera, or a section of a podcast.
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* The element is identified by the class name <code>item</code>.
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* hAudio {{may}} have one or more items.
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* The element {{must}} be processed opaquely. No sub-elements should be read from any hAudio contained in a track element.
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* The contents of the element {{must}} be marked up using properties in hAudio.
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==== Position ====
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The position is used to describe the position of the hAudio item in a list. Examples of hAudio lists can include album track listings, music top 10 lists, playlists, and podcast chapters.
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* The element is identified by the class name <code>position</code>.
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* hAudio {{may}} include one <code>position</code> element.
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* The contents of the element {{must}} be a number or other sequential identifier.
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* The sequential identifier {{may}} be specified out-of-sequence.
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==== Contributor ====
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A Contributor is any entity that takes part in the creation and distribution of an audio recording. Examples include: artist, composer, publisher, guitarist, vocalist, violinist, lead singer, backup singer, bassist, drummer, manager, and roadie.
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* The element is identified by the class name <code>contributor</code>.
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* hAudio {{may}} include one or more contributors.
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* The contributor's name SHOULD also be marked up as a valid hCard Microformat. [[hcard]]
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*# The <code>role</code> attribute {{should}} be used to specify the contributor's responsibility related to the audio recording if hCard is utilized.
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* The contributor's name {{may}} be specified in plain-text without being enclosed in a hCard Microformat.
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==== Published ====
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The published date specifies the date that the audio recording was made available to the public. Examples include: The airing date of a radio broadcast, the day a speech was given, or the day a music album was made available for sale.
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* The element is identified by the class name <code>published</code>.
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* hAudio {{may}} include one or more <code>published</code> elements.
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* The contents of the element {{may}} include a date format compliant with the [[datetime-design-pattern]].
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==== Sample ====
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A Sample URI specifies from where an excerpt of the audio recording may be retrieved.
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* The element is identified by a URI fitting the [[rel-design-pattern]], the rel content being <code>sample</code>.
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* hAudio {{may}} include one or more URI <code>sample</code>s.
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* The URI {{should}} point to a directly accessible stream or file.
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* The type of the sample {{may}} be specified by using the <code>type</code> specifier for a URI.
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==== Full Download (Enclosure) ====
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A Full Download URI specifies from where the full version of an audio recording may be retrieved. The URI {{must}} point to a direct link to a file retrieval process (FTP, HTTP, BitTorrent URI, etc).
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* The element is identified by a URI fitting the [[rel-design-pattern]], the rel content being <code>enclosure</code>.
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* hAudio {{may}} include one or more <code>enclosure</code> URIs.
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* The type of the file {{should}} be specified by using the <code>type</code> specifier for a URI.
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==== Purchase (Payment) ====
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A Purchase URI specifies from where the full version of an audio recording may be purchased. The URI {{must}} point to the beginning of a purchase process for the hAudio.
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* The element is identified by a URI fitting the [[rel-design-pattern]], the rel content being <code>payment</code>.
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* hAudio {{may}} include one or more <code>payment</code> URIs.
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* The type of the file {{may}} be specified by using the <code>type</code> specifier for a URI.
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==== Photo ====
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A photo specifies an image that should be used to summarize the audio recording. Examples include: the image of a speaker, an audio album cover image, or a picture from a concert.
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* The element is identified by the class name <code>photo</code>.
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* hAudio {{may}} include one or more <code>photo</code> elements.
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* The element {{should}} use an &lt;img&gt; element.
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* The element {{may}} use any other element that contains a URL, such as &lt;a&gt; or &lt;object&gt;, but it is not recommended.
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==== Category ====
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The Category specifies the genre or style used to classify the audio recording. Examples include: blues, rock, motivational, spoken word, or sound effect.
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* The element is identified by the class name <code>category</code>.
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* hAudio {{may}} include one or more <code>category</code> elements.
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* This element {{may}} be expressed using the [[rel-tag]] elemental microformat. When a category is expressed using rel-tag, the content of the element is used as the text for the category. For example: <code><a class="category" rel="tag" href="/tags/symphony">Symphonic</a></code> would have "Symphonic" as the text for the category.
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==== Duration ====
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The Duration specifies the length in time of the audio recording. Examples include: 104 seconds, 3:23, and 4 minutes.
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* The element is identified by the class name <code>duration</code>.
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* hAudio {{may}} include one <code>duration</code> element.
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* The contents of the element {{may}} use the [[abbr-design-pattern]] whose title attribute contains an ISO-8601 formatted duration. An example of 3:23 (i.e 3 minutes 23 seconds) would be "PT3M23S" in ISO 8601 format.
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* The element {{may}} contain the following sub properties:
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** '''h''' Hour.
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** '''min''' Minute.
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** '''s''' Second.
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Example:
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<pre><span class="duration">
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<span class="h">1</span>:
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<span class="min">3</span>:
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<span class="s">23</span>
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</span></pre>
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==== Price ====
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The Price specifies the amount of currency that must be exchanged for acquisition of a full specimen of the audio recording.
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* The element is identified by the class name <code>price</code>.
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* hAudio {{may}} include one or more <code>price</code> elements.
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* The contents of the element {{may}} also use plain text with a currency symbol.
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* The contents {{may}} contain the following sub properties:
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** '''currency''' an [http://en.wikipedia.org/wiki/ISO_4217#Active_codes ISO 4217] currency name.
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** '''amount''' a numerical value.
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Example:
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<pre><span class="price">
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<abbr class="currency" title="GBP">&pound;</abbr>
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<span class="amount">4.99</span>
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</span></pre>
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==== Description ====
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An explanation of the contents of the hAudio item. This could explain the significance of a speech, the full-text description of a sound effect, or the meaning of a song or album.
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* The element is identified by the class name <code>description</code>.
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* hAudio {{may}} include one or more <code>description</code> elements. If more than one description element is defined, the full description for the hAudio is the concatenation, in order, of all <code>description</code> elements.
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=== Parser Processing Notes ===
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* It is important to understand that ITEM is an opaque element. When processing the ITEM element, none of the properties of the child hAudio should be pulled into the parent hAudio. However, it is recommended that child hAudio {{should}} inherit the following parent hAudio properties, if they are not specified on the child:
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** album
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** contributor
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** category
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** published
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** photo
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=== Semantic XHTML Design Principles ===
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{{semantic-xhtml-design-principles}}
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==== More Semantic Equivalents ====
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For some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
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* For "photo", use <code><img class="photo" src="..." alt="" /></code>
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* If only 'album' is specified, then the hAudio is an album.
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* If only 'fn' is specified, then the hAudio is a song, audio track, sound effect, speech, or other atomic/singular work.
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* If both 'album' and 'fn' are specified, then the hAudio is a atomic/singular work that is part of an album.
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** Example: <code><nowiki><span class="haudio">Side two of <span class="album">Meddle</span> opens with <span class="fn">One of These Days</span></span></nowiki></code>
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* If 'fn' and one or more 'items's are specified, the hAudio is an audio recording containing multiple sections. Each item is assumed to be an hAudio that is part of the parent hAudio.  None of the 'item' properties should implicitly be added to the containing hAudio. In other words, the parser shouldn't parse the contents of the 'item' into the higher-level hAudio object.
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==== Language ====
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* To explicitly convey the natural language that an hAudio is written in, use the standard (X)HTML 'lang' or 'xml:lang' attribute on the element with class="haudio"
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**e.g. <code><nowiki><p>I like <span class="haudio" lang="de"><span class="fn">Das Lied von der Erde</span></span> best.</p></nowiki></code>
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*If portions of an hAudio (e.g. the item name) are in a different language to the rest of the hAudio, use the 'lang' or 'xml:lang' attribute on those portions.
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* hAudio parsers which need to handle the native language of hAudio {{must}} process the standard (X)HTML 'lang' or 'xml:lang' attribute as specified.
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* hAudio parsers which need to handle native language {{may}} traverse up the DOM to discover the native language of the page and apply that to the hAudio if no other language is specified on the hAudio.
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==== Human vs. Machine Readable ====
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If an <code>&lt;abbr></code> element is used for a property, then its '<code>title</code>' attribute is used for the value of the property, instead of the contents of the element, which can then be used to provide a user-friendly alternate presentation of the value.
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If an <code>&lt;a&gt;</code> element is used for one or more properties, it {{must}} be treated as follows:
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# For the 'photo' property and any other property that takes a URL as its value, the <code>href="..."</code> attribute provides the property value.
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# For other properties, the element's content is the value of the property.
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If an <code>&lt;img&gt;</code> element is used for one or more properties, it {{must}} be treated as follows:
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# For the 'photo' property and any other property that takes a URL as its value, the <code>src="..."</code> attribute provides the property value.
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# For other properties, the <code>&lt;img></code> element's '<code>alt</code>' attribute is the value of the property.
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If an <code>&lt;object&gt;</code> element is used for one or more properties, it {{must}} be treated as follows:
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# For the 'photo' property and any other property that takes a URL as its value, the <code>data="..."</code> attribute provides the property value.
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# For other properties, the element's content is the value of the property.
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=== Notes ===
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This section is informative.
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* By marking up audio content with the hAudio microformat, the expectation is communicated that information about the content {{may}} be indexed.  This has no impact on the copyright of the content itself which the publisher may explicitly specify using the [[rel-license]] microformat.
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== XMDP Profile ==
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See: [[haudio-profile]].
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== Examples ==
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This section is informative.
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Here are a few examples of text about, and links to, audio content, from real web sites, showing how they could be easily enhanced to use hAudio.
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<!-- Want to write valid [[haudio|hAudio]]?  Use the [http://microformats.org/code/haudio/creator hAudio creator] (not implemented yet) to write about audio content and publish it on your blog. -->
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=== Simple Song Example ===
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Display:
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(This is a live example, detectable in parsers)
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<div class="haudio">
+
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<span class="fn">Start Wearing Purple</span> by <span class="contributor">Gogol Bordello</span>
+
-
</div>
+
-
 
+
-
Microformatted XHTML:
+
-
 
+
-
<pre>
+
-
<div class="haudio">
+
-
  <span class="fn">Start Wearing Purple</span> by
+
-
  <span class="contributor">Gogol Bordello</span>
+
-
</div>
+
-
</pre>
+
-
 
+
-
=== Speech Example ===
+
-
 
+
-
(This is a live example, detectable in parsers)
+
-
 
+
-
Display:
+
-
 
+
-
<div class="haudio">
+
-
<span class="fn">I Have a Dream</span>, a <span class="category">speech</span> by <span class="contributor"><span class="vcard"><span class="fn n"><span class="given-name">Martin</span> <span class="additional-name">Luther</span> <span class="family-name">King</span>, <span class="honorific-suffix">Jr.</span></span></span></span>
+
-
</div>
+
-
 
+
-
Microformatted XHTML:
+
-
<pre>
+
-
<div class="haudio">
+
-
  <span class="fn">I Have a Dream</span>, a
+
-
  <span class="category">speech</span> by
+
-
  <span class="contributor">
+
-
      <span class="vcard">
+
-
        <span class="fn n">
+
-
            <span class="given-name">Martin</span>
+
-
            <span class="additional-name">Luther</span>
+
-
            <span class="family-name">King</span>,
+
-
            <span class="honorific-suffix">Jr.</span>
+
-
        </span>
+
-
      </span>
+
-
  </span>
+
-
</div>
+
-
</pre>
+
-
 
+
-
Note the use of [[hcard|hCard]].
+
-
 
+
-
=== Song and Album Example ===
+
-
 
+
-
(This is a live example, detectable in parsers)
+
-
 
+
-
Display:
+
-
 
+
-
<div class="haudio">
+
-
<span class="fn">Start Wearing Purple</span> by  <span class="contributor"><span class="vcard"><span class="fn org">Gogol Bordello</span></span></span> found on <span class="album">Underdog World Strike</span>
+
-
</div>
+
-
 
+
-
Microformatted XHTML:
+
-
 
+
-
<pre>
+
-
<div class="haudio">
+
-
  <span class="fn">Start Wearing Purple</span> by
+
-
  <span class="contributor">
+
-
        <span class="vcard">
+
-
            <span class="fn org">Gogol Bordello</span>
+
-
        </span>
+
-
    </span>
+
-
  found on
+
-
  <span class="album">Underdog World Strike</span>
+
-
</div>
+
-
</pre>
+
-
 
+
-
Note that for bands, hCard's ''[[hcard#Implied_.22organization-name.22_Optimization|Implied "organization-name" Optimization]]'' is used.
+
-
 
+
-
=== Complete Album Example ===
+
-
 
+
-
An example that uses every element of hAudio:
+
-
 
+
-
[Image] Live Phish, Volume 15 by Phish<br/>
+
-
Released: October 31, 2002<br/>
+
-
Acquire: Sample, Live Recording, Buy High Quality Track<br/>
+
-
Category: [http://www.example.org/tags/live live]<br/>
+
-
Duration: 145 minutes, 27 seconds<br/>
+
-
Price: $14.99<br/>
+
-
<br/>
+
-
Tracks:<br/>
+
-
1. Sanity (5:48)<br/>
+
-
2. Highway To Hell (3:39)
+
-
 
+
-
Here is the hAudio Microformat markup:
+
-
 
+
-
<pre>
+
-
<div class="haudio">
+
-
  <img class="photo" src="images/live_phish_vol_15.jpg" alt="" />
+
-
  <span class="album">Live Phish, Volume 15</span>
+
-
  <span class="contributor">
+
-
      <span class="vcard">
+
-
        <span class="fn org">Phish</span>
+
-
      </span>
+
-
  </span>
+
-
  <br/>
+
-
  Released on:
+
-
  <abbr class="published" title="2002-10-31">October 31, 2002</abbr>
+
-
  <br/>
+
-
  Acquire:
+
-
  <a rel="sample" href="/samples/live_phish_vol_15_sample.mp3">Sample</a>,
+
-
  <a rel="enclosure" href="/live/phish_live_phish_vol_15.mp3">Live Recording</a>,
+
-
  <a rel="payment" href="/buy/phish_live_phish_vol_15">Buy High Quality Track</a>
+
-
  Category: <a class="category" rel="tag" href="http://www.example.org/tags/live">live</a>
+
-
  Duration: <abbr class="duration" title="PT145M27S">145 minutes, 27 seconds</abbr>
+
-
  Price: <div class="price"><abbr class="currency" title="USD">$</abbr><span class="amount">14.99</span></div>
+
-
  Tracks:
+
-
  <div class="item">
+
-
      <span class="position">1</span>.
+
-
      <span class="fn">Sanity</span>
+
-
      (<abbr class="duration" title="PT5M48S">5:48</abbr>)
+
-
    </div>
+
-
    <div class="item">
+
-
    <span class="position">2</span>.
+
-
    <span class="fn">Highway To Hell</span>
+
-
    (<abbr class="duration" title="PT3M39S">3:39</abbr>)
+
-
  </div>
+
-
</div>
+
-
</pre>
+
-
 
+
-
=== Multi-part Podcast Example ===
+
-
 
+
-
DigitalPlanet Podcast: 29 Oct 07
+
-
 
+
-
Forensic computing: is it really possible to delete data from your machine? Grand plans for getting broadband into Africa, checking out the sky at night via the internet and answering your emails to the programme.
+
-
 
+
-
Download MP3
+
-
 
+
-
<pre>
+
-
<div class="haudio">
+
-
<p>
+
-
  <span class="fn">DigitalPlanet Podcast</span>
+
-
  :
+
-
  <abbr class="published" title="20071029">29 Oct 07</abbr>
+
-
</p>
+
-
<p>
+
-
  <div class="item">
+
-
      <span class="fn">Forensic computing: is it really possible to delete data from your machine?</span>
+
-
  </div>
+
-
  <div class="item">
+
-
      <span class="fn">Grand plans for getting broadband into Africa</span>
+
-
  </div>
+
-
  ,
+
-
  <div class="item">
+
-
      <span class="fn">checking out the sky at night via the internet</span>
+
-
  </div>
+
-
  and
+
-
  <div class="item">
+
-
      <span class="fn">answering your emails</span>
+
-
  </div>
+
-
  to the programme.
+
-
</p>
+
-
<p>
+
-
  <a rel="enclosure" href="/download/episode/DigitalPlanet-2007-10-29">Download MP3</a>
+
-
</p>
+
-
</div>
+
-
</pre>
+
-
 
+
-
=== Opera Example ===
+
-
 
+
-
(This is a live example, detectable in parsers)
+
-
 
+
-
<div class="haudio" lang="en">
+
-
<span class="fn" lang="fr">La Bohème</span> is an <span class="category">opera</span> in four acts by <span class="contributor" lang="it">Giacomo Puccini</span> to an <span class="category">Italian liberetto</span> by <span class="contributor" lang="it">Luigi Illica</span> and <span class="contributor" lang="it">Giuseppe Giacosais</span>. I saw it performed last week and found <span class="item"> <span class="fn">Act III</span> to be pretty interesting, especially the <span class="item"> "<span class="fn" lang="it">Sa dirmi, scusi</span>"</span> and <span class="item">"<span class="fn" lang="it">O buon Marcello, aiuto!</span>"</span> arias.</span>
+
-
</div>
+
-
 
+
-
 
+
-
<pre>
+
-
<div class="haudio" lang="en">
+
-
  <span class="fn" lang="fr">La Bohème</span>
+
-
  is an
+
-
  <span class="category">opera</span>
+
-
  in four acts by
+
-
  <span class="contributor" lang="it">Giacomo Puccini</span>
+
-
  to an
+
-
  <span class="category">Italian liberetto</span>
+
-
  by
+
-
  <span class="contributor" lang="it">Luigi Illica</span>
+
-
  and
+
-
  <span class="contributor" lang="it">Giuseppe Giacosais</span>.
+
-
  I saw it performed last week and found
+
-
  <span class="item">
+
-
      <span class="fn">Act III</span>
+
-
      to be pretty interesting, especially the
+
-
      <span class="item">
+
-
        "<span class="fn" lang="it">Sa dirmi, scusi</span>"
+
-
      </span>
+
-
      and
+
-
      <span class="item">
+
-
        "<span class="fn" lang="it">O buon Marcello, aiuto!</span>"
+
-
      </span>
+
-
      arias.
+
-
  </span>
+
-
</div>
+
-
</pre>
+
-
 
+
-
== Examples in the wild ==
+
-
 
+
-
This section is '''informative'''.
+
-
 
+
-
* [http://en.wikipedia.org/wiki/Category:Articles_with_hAudio_microformats Wikipedia] has 119,555 songs and albums marked up in hAudio format.
+
-
* [http://weborganics.co.uk/haudio-rss/ hAudio-RSS] uses hAudio 0.9.1 and XSLT to generate an RSS2 Playlist.
+
-
* Tara Hunt of [http://openmediaweb.org/index.php/2008/01/13/publishing-my-workout-music-in-haudio/ Open Media Web] Published her workout Music in hAudio
+
-
* Grabb.it The web music player now uses hAudio 0.9 in its [http://grabb.it/users/greg user pages]
+
-
* [http://soundcloud.com/ SoundCloud] has hAudio in its pages.
+
-
* [http://populizer.com/ Populizer] also has hAudio in its pages.
+
-
* The [http://www.numblog.de/ New Urban Music Blog] has hAudio marked up in its pages.
+
-
* [http://alpha.libre.fm/ Libre.fm] has marked up on all its user pages in hAudio see : [http://alpha.libre.fm/user/weborganics example]
+
-
 
+
-
== Implementations ==
+
-
 
+
-
This section is '''informative'''.
+
-
 
+
-
*[http://weborganics.co.uk/files/js/haudio.js hAudio 0.9 script] for [[operator|Operator]], updated version of the original hAudio script by David Lehn.
+
-
* Matthias Pfefferle has made some [http://notizblog.org/projects/haudio-icons/ hAudio Icons]
+
-
* [http://microform.at/ Microformat TransFormr] extracts hAudio 0.9.1 as a RSS2 Podcast.
+
-
* [http://buzzword.org.uk/cognition/ Cognition] 0.1-&alpha;11 and above will parse hAudio 0.9 and export as RDF/XML or RDF/JSON. As of 0.1-&alpha;12, it will also export in M3U playlist format and Turtle.
+
-
* [http://weborganics.co.uk/mo-haudio/ hAudio Microformat to RDF Music Ontology], a [http://www.w3.org/TR/grddl/ GRDDL] profile for hAudio 0.9.1, producing [http://musicontology.com/ Music Ontology] RDF.
+
-
* The [http://singpolyma.net/plugins/actionstream/ wp-diso-actionstream] plugin produces hAudio for last.fm scrobbles
+
-
*...
+
-
<!--
+
-
See [[haudio-implementations|hAudio Implementations]].
+
-
link not needed until section has become too large for this page (per previous specs)
+
-
-->
+
-
 
+
-
== References ==
+
-
=== Normative References ===
+
-
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
+
-
* [http://gmpg.org/xmdp/ XMDP]
+
-
* [[hcard|hCard]]
+
-
* [[abbr-design-pattern]]
+
-
* [[currency-proposal]]
+
-
* [[datetime-design-pattern]]
+
-
* [[rel-design-pattern]]
+
-
* [[ISO-31-1|ISO-31-1/ISQ]]
+
-
 
+
-
=== Informative References ===
+
-
* [http://www.w3.org/TR/REC-CSS1 CSS1]
+
-
* ISO.8601.1988
+
-
** International Organization for Standardization, "Data elements and interchange formats - Information interchange - Representation of dates and times", ISO Standard 8601, June 1988.
+
-
* [http://www.w3.org/TR/1998/NOTE-datetime-19980827 W3C NOTE-datetime-19980827]
+
-
* [http://www.w3.org/Consortium/Patent-Policy-20040205/ W3C Patent Policy]
+
-
* Other audio metadata efforts. See [[audio-info-formats]].
+
-
 
+
-
==== Similar Work ====
+
-
* [[media-info]]
+
-
* [[grouping-examples]]
+
-
* [[grouping-brainstorming]]
+
-
* [[xoxo|XOXO]]
+
-
 
+
-
=== Copyright ===
+
-
 
+
-
This document and <span class="vevent"><span class="summary">hAudio specification was placed into the public domain</span> on <span class="dtstart">2008-11-14</span></span> by the authors. There are no usage, distribution, re-printing, or any other restrictions of any kind with regards to the text or content of this specification.
+
-
 
+
-
=== Patents ===
+
-
 
+
-
{{MicroFormatPatentStatement}}
+
-
 
+
-
=== Public Domain Release ===
+
-
 
+
-
The authors and editors of this page due hereby relinquish their copyright on the document and release the text of this page into the public domain.
+
-
 
+
-
* Manu Sporny - Signature /Manu Sporny/
+
-
* Alexandre Van de Sande
+
-
* [[User:WebOrganics|Martin McEvoy]]
+
-
* [[User:DavidLehn|David Lehn]] - Signature /David Lehn/
+
-
* [[User:AndyMabbett|Andy Mabbett]]
+
-
 
+
-
== Work in progress ==
+
-
This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added.
+
-
 
+
-
== Related Pages ==
+
-
{{haudio-related-pages}}
+
-
* [[audio]] (other pages about Audio on this wiki)
+
-
 
+
-
[[Category:Draft Specifications]]
+

Revision as of 04:11, 22 September 2013

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haudio was last modified: Wednesday, December 31st, 1969

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