OpenVoice currently ranks second-to-last in the Huggingface TTS arena leaderboard, well below alternatives like styletts2 and xtts2:
https://huggingface.co/spaces/TTS-AGI/TTS-Arena
(Click the leaderboard tab at the top to see rankings)
https://huggingface.co/spaces/TTS-AGI/TTS-Arena
(Click the leaderboard tab at the top to see rankings)
It wouldn't surprise me if people recognize different algorithms and purposefully promote them over others, or alter the page source with a userscript to see the algorithm before listening and click the one they're trying to promote. Looking at the leaderboard, it's obvious there's manipulation going on, because Metavoice is highly ranked but generates absolutely terrible speech with extremely unnatural pauses.
Elevenlabs was scarily natural sounding and high quality; the best of the ones I listened to so far. Pheme's speech overall sounds really natural, but has terrible sound quality, which is probably why it's ranked so well. If Pheme could be higher quality audio, it'd probably match Elevenlabs.
https://github.com/collabora/whisperspeech
I found it to be kind of creepy hearing it in my own voice. I also tried a friend of mine who had a french canadian accent and strangely the output didn't have his accent.