This is a model that I trained based off of https://librivox.org/afkes-tiental-door-nienke-van-hichtum/. So the voice is really like a childrens book voice. It has about 10 hours of training, so it's not the best, but it does mostly work at the moment.
To use this, pass the model files through to Piper. I run my piper container with the following command;
docker run --rm -it -p 10200:10200 -v ~/Downloads/model1.onnx:/data/model1.onnx -v ~/Downloads/model1.onnx.json:/data/model1.onnx.json -v ~/Documents/anna.onnx:/data/anna.onnx -v ~/Documents/anna.onnx.json:/data/anna.onnx.json rhasspy/wyoming-piper --voice nl_NL-mls-medium
When using Home Assistant, also reload the piper plugin after you restarted the container. At that moment you can select it in the dropdown menu (the language is Nederlands, not NL_nl as the current models)
Model tree for Rikels/piper-dutch
Base model
rhasspy/piper-voices