VibeVoice (according to the repo description) is currently unavailable due to "misuse". But my impression was that it required a significant (>8GB) amount of VRAM? Or that it wasn't suitable for on-device for devices with low specs.
According to this issue[0] the 1.5B model needs 6GB of VRAM. Meanwhile it looks like NeuTTS is designed to be able to run on CPU, which is nice for older/lower-spec hardware.
