output is mumbled for a specific sentence and voice

[vcalv]

If you use the voice en_US-ryan to synthesize the sentence My general knowledge of Smith and his ideas has also benefited from numerous conversations about Smith with Don Boudreaux of George Mason and James Otteson while he was at Yeshiva University

it just mumbles almost every word after knowledge.

This is a problem with this specific voice and not any other that I've tested with, suggesting the phoneme conversion is OK.

piper.mp4

[shuja-u]

I can confirm having the same issue with that voice

[vcalv]

It's completely bananas, because if you try the exact same sentence with another US-english voice it's near perfect.

Example with en_US-joe-medium.

en_US-joe-medium.mp4

[synesthesiam]

Very odd, I can confirm this is a problem with the medium/high quality Ryan voices. The low quality voice seems to work, though. My only guess is that (1) there are bad training samples in the Ryan dataset, and (2) this text similar one of those bad samples.

[erew123]

Thank god... I thought it was me going nuts! en_US-ryan-high.onnx

I have had very strange results with this voice. I thought it was a certain character length that causes the issues, but I'm not sure on that I could be wrong. It can sound like a man trying to the "worlds fastest" rapper impression at times... and strangely, sometimes it does work ok. I'm just adding a bit more information here for others whom may experience this.

I was about to go down a whole route of trying to figure out what was wrong with my system setup, but it looks like its just that one voice.