What API's provide Nokia for Sound to text and text to sound transformation?

What API's provide Nokia for Sound to text and t开发者_如何学JAVAext to sound transformation for Java or C++ programmer?

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For the S60 handsets at least there is built in text-to-speech. Have a look at this article which details the 'low quality' API, and this article which points to the higher quality API.

Not aware of it being accessible from MIDP in Nokia handsets, and I believe speech-to-text isn't open to third party developers. (There is a MIDP JSR, JSR-113, for speech but I don't know of any devices which support it.

I've not had any experience of third party libraries.