eSpeak

eSpeak is a free text-to-speech synthesizer. It was developed by Jonathan Duddington until 2015. In 2015, Reece Dunn cloned it, and together with a group of developers they maintain and actualize it under the name “eSpeak NG”. eSpeak NG uses formant synthesis. On 2024-08-24, version 1.52-dev supports 137 languages with 104 voices, and is available in Praat (see Acknowledgments).

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- Kirshenbaum phonetic encoding
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