Why speech synthesis?

Let me demonstrate the difference between the quality of various speech synthesis methods. Below first is a sample sentence synthesized with a standard method, and second the same sentence with a high-quality method. The high-quality method is based on a Hidden Markov Model (HMM), see [Raitio, Suni, Yamagishi, Pulakka, Nurminen, Vainio and Alku 2010].

Synthetic sentence with a low-quality baseline method:

Here is the same sentence with a higher-quality synthetization:

Let me demonstrate the difference between the quality of various speech synthesis methods. Below first is a sample sentence synthesized with a standard method, and second the same sentence with a high-quality method. The high-quality method is based on a Hidden Markov Model (HMM), see [Raitio, Suni, Yamagishi, Pulakka, Nurminen, Vainio and Alku 2010].

Synthetic sentence with a low-quality baseline method:

Here is the same sentence with a higher-quality synthetization: