Haven't we had TTS for like 20+ years? Why does AI need to be shoved into it all of a sudden. Total waste of electricity.
Using neural nets (machine learning) to train TTS voices has been around a long time.
[1] (2016 https://arxiv.org/abs/1609.03499) WaveNet: A Generative Model for Raw Audio
[2] (2017 https://arxiv.org/abs/1711.10433) Parallel WaveNet: Fast High-Fidelity Speech Synthesis
[3] (2021 https://arxiv.org/abs/2106.07889) UnivNet: A Neural Vocoder with Multi-Resolution Spectrogram Discriminators for High-Fidelity Waveform Generation
[4] (2022 https://arxiv.org/abs/2203.14941) Neural Vocoder is All You Need for Speech Super-resolution
Read that: https://blog.cyril.by/fr/software/an-expressive-text-to-spee... and you'll find answers to your remarks
Using neural nets (machine learning) to train TTS voices has been around a long time.
[1] (2016 https://arxiv.org/abs/1609.03499) WaveNet: A Generative Model for Raw Audio
[2] (2017 https://arxiv.org/abs/1711.10433) Parallel WaveNet: Fast High-Fidelity Speech Synthesis
[3] (2021 https://arxiv.org/abs/2106.07889) UnivNet: A Neural Vocoder with Multi-Resolution Spectrogram Discriminators for High-Fidelity Waveform Generation
[4] (2022 https://arxiv.org/abs/2203.14941) Neural Vocoder is All You Need for Speech Super-resolution