[Text to Speech API] Chinese TTS unreliable and unusable

[dignity_for_all]

This phenomenon seems to occur in languages other than English, likely Asian languages.

What is difference between TTS HD vs TTS?

According to the document description, tts-1 is optimized for speed, while tts-1-hd is optimized for quality. However, in about 30 Japanese text-to-speech tests that I conducted, tts-1-hd often read parts of the Japanese text with a strange pronunciation that was neither Japanese nor English. Therefore, it is likely that tts-1 and tts-1-HD were trained on different datasets. I have not confirmed whether this applies to languages other than Japanese, but which one to prefer may vary depending o…

It appears that using tts-1 instead of tts-1-hd results in fewer issues. In Japanese, there were hardly any such issues with tts-1.

I hope this helps some of you!