ⓘ audio – audio stream NEW # T
      
    An
    audio
    element represents an audio stream.
   
      
        Permitted contents #
        
      Transparent,
          with the following specific structure:
       
 
        Permitted attributes #
        
        
- 
ⓘ
global attributes
- Any attributes permitted globally.
- 
ⓘ
autoplay = 
       "autoplay"
       or "" (empty string) or empty
     
#
- Instructs the UA to automatically begin playback of
        the audio stream as soon as it can do so without
        stopping.
- 
ⓘ
preload = 
       "none"
       or  "metadata"
       or  "auto"
       or "" (empty string) or empty
     
#
- Represents a hint to the UA about whether optimistic
        downloading of the audio stream itself or its
        metadata is considered worthwhile.
        
- "none": Hints to the UA that the user
          is not expected to need the audio stream, or that minimizing
          unnecessary traffic is desirable.
- "metadata": Hints to the UA
          that the user is not expected to need the audio stream,
          but that fetching its metadata (duration and so on) is
          desirable.
- "auto": Hints to the UA that
          optimistically downloading the entire audio stream is
          considered desirable.
 Specifying the empty string is equivalent to specifying
        the value "auto".
- 
ⓘ
controls = 
       "controls"
       or "" (empty string) or empty
     
#
- Instructs the UA to expose a user interface for
        controlling playback of the audio stream.
- 
ⓘ
loop = 
       "loop"  or "" (empty string) or empty
     
#
- Instructs the UA to seek back to the start of the
        audio stream upon reaching the end.
- 
ⓘ
mediagroup = string 
#
- Instructs the UA to link multiple videos and/or audio streams
      together.
- 
ⓘ
muted = 
       "muted"  or "" (empty string) or empty
     
#
- Represents the default state of the audio stream,
      potentially overriding user preferences.
- 
ⓘ
src = 
      non-empty URL potentially surrounded by spaces
     
#
- The URL for the audio stream.
 
      
      
        Additional constraints and admonitions #
        
- 
				The interactive element audio
				with the attribute controls must not
				appear as a descendant of the a element.
			
- 
				The interactive element audio
				with the attribute controls must not
				appear as a descendant of the button element.
			
- 
				audio element has more than one “track”
				child element with a default attribute.
			
 
      
      
        Permitted parent elements #
        any element that can contain
            phrasing elements, any element that can contain
            flow elements