Hello,
I'm on the S0 Tier for Azure Cognitive Speech services and am trying to train a custom voice for Japanese TTS. My data was successfully processed. But I wasn't able to select "Statistical Parametric" or "Concatenative" as my training method. "Neural" was the only option on the list.

However, I was able to use those non-neural methods for English and Chinese projects.

I'm aware that non-neural custom voices are being deprecated but I don't see any information on the documentation about them being disabled in certain languages.
Does anyone know if I could still train a Japanese non-neural voice model? If so, how?
Thank you very much in advance.