Are there open source projects like this?
Here's a sample from a TTS model + vocoder I released for it. I've no wish to deter the motivated, but it'd take a bit of figuring out how to set things up and you'd need to read the docs and code to get oriented :)
https://m.soundcloud.com/user-726556259/sherlock-wavegrad-sa...
Links to the models are here: https://discourse.mozilla.org/t/creating-a-github-page-for-h...
Is originally trained on two novels read by the same narrator on LibriVox (ie in public domain)