TranslatorService.Speech (nuget): This library adds Text-To-Speech (speech synthesis) capabilities to your applications. It uses Microsoft Translator Service to obtain streams of wave-file speaking text in the desired language.  There are 44 supported languages, including English, Italian, German, French, Spanish, Japanese and Chinese. The library is currently available for .NET 4.0, Windows Phone and WinRT.
Keywords: Text-To-Speech