[Name] type [Description] The preferred media type of the output resource. A resource indicated by the URI reference in the src or expr attributes may be available in one or more media types. The author may specify the preferred media type via the type attribute. When the content represented by a URI is available in many data formats, a VoiceXML platform may use the preferred media-type to influence which of the multiple formats is used. For instance, on a server implementing HTTP content negotiation, the processor may use the preferred media-type to order the preferences in the negotiation. The resource representation delivered by dereferencing the URI reference may be considered in terms of two types. The declared media-type is the asserted value for the resource and the actual media-type is the true format of its content. The actual media-type should be the same as the declared media-type, but this is not always the case (e.g. a misconfigured HTTP server might return 'text/plain' for a 'audio/x-wav' or video/3gpp' resource). A specific URI scheme may require that the resource owner always, sometimes, or never return a media-type. The declared media-type is the value returned by the resource owner or, if none is returned, the preferred media type. There may be no declared media-type if the resource owner does not return a value and no preferred type is specified. Whenever specified, the declared media-type is authoritative. Three special cases may arise. The declared media-type may not be supported by the processor. No error is thrown by the platform and the content of the media element is played instead. The declared media-type may be supported but the actual media-type may not match. No error is thrown by the platform and the content of the media element is played instead. Finally, there may be no declared media-type; the behavior depends on the specific URI scheme and the media capabilities of the VoiceXML processor. For instance, HTTP 1.1 allows document introspection (see [RFC2616] , section 7.2.1), the data scheme falls back to a default media type, and local file access defines no guidelines. [Required] No [Default Value] 
undefined
N o n e
u n d e f i n e d
t r u e
0 s
1
+ 0 . 0 d B
1 0 0 %
o u t p u t m o d e s p r o p e r t y