A string specifying the content-type ID. Currently, “audio/wav” and “audio/mp3” are available. The default value is "audio/wav".
| Namespace | http://api.microsofttranslator.com/V2 | 

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 format optional xs:string
 
A string specifying the content-type ID. Currently, “audio/wav” and “audio/mp3” are available. The default value is "audio/wav".  | 
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