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Sfxr (and also Bfxr) is a great tool for generating sound-effects for games. Is there something like this for speech synthesis?

Not every game development tool and platform has a speech synthesis engine, and it would be great to at least get some decent-sounding placeholders in place to see how the usability/experience plays out. Even better if the results are tweakable, like sfxr.

I'm looking for something I can at least run on windows, though preferably (like Bfxr) I would like a web application that I can just run out of my browser.

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Festival has a free software license and one set of voice samples for American English that is also free. It has C++ and Java APIs as well as a Lisp-like command interface.

Flite is based on the same principles and is mostly compatible; it has only a C interface and is considerably lighter.

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These look linux-based (I didn't see a binaries download link). I'ml ooking for something web-based, preferably. – ashes999 Aug 2 '11 at 14:14
@ashes999 You should probably specifiy that in your question then. – Jonathan Connell Aug 2 '11 at 14:31
@Jon done, sorry about that; I thought the reference to Bfxr might have implied it, but now I've made it explicit. – ashes999 Aug 2 '11 at 14:33
Festival, at least, does seem to have an 'online demo', as well as release downloads that might contain windows binaries, though it seems to be mostly Unix based. The links page contains a variety of tools, some of which might be usable. – thedaian Aug 2 '11 at 14:40
Their terms prohibit use of their online demo for anything, really. But you can download and use their app. – ashes999 May 5 '14 at 15:18

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