Updated Kokoro-Fast, Open WebUi - voice broken

[RBEmerson970]

I suspect this is an Open WebUI issue (see #8685), but FWIW voices have stopped working altogether. At one point "am_michael" worked, even after trying "af_kore" or "am_adam" unsuccessfully.
At this point, reverting to am_michael no longer works. Attached is Docker's account of what's going on:
Kokoro-Open WebUI fail.log

The only exceptions from Kokoro-Fast were discussed elsewhere, and AFAIK are irrelevant.

2025-02-13 16:52:06 INFO:     Started server process [30]
2025-02-13 16:52:06 INFO:     Waiting for application startup.
2025-02-13 16:52:06 /app/.venv/lib/python3.10/site-packages/torch/nn/modules/rnn.py:123: UserWarning: dropout option adds dropout after all but last recurrent layer, so non-zero dropout expects num_layers greater than 1, but got dropout=0.2 and num_layers=1
2025-02-13 16:52:06   warnings.warn(
2025-02-13 16:52:06 /app/.venv/lib/python3.10/site-packages/torch/nn/utils/weight_norm.py:143: FutureWarning: `torch.nn.utils.weight_norm` is deprecated in favor of `torch.nn.utils.parametrizations.weight_norm`.
2025-02-13 16:52:06   WeightNorm.apply(module, name, dim)
2025-02-13 16:52:09 INFO:     Application startup complete.
2025-02-13 16:52:09 INFO:     Uvicorn running on http://0.0.0.0:8880 (Press CTRL+C to quit)

[remsky]

Will give it a test tonight to try and see whats happening

[RBEmerson970]

The heck of it is, a host of updates dropped today: NVIDIA 4090 drivers, Ollama, Open WebUi, and Kokoro-Fast. Oh, the room for Murphy's Law! ;D

[RBEmerson970]

Updated everything that touches TTS, including Win 11, and TTS still fails. Using FastKoko still "speaks, although there's still an upper bound to how much text can be handled at once.
2025-02-14 150107 INFO ('172.17.txt

[RBEmerson970]

I changed the Admin:Audio setting for Text-To--Speech engine to
http://host.docker.internal:8880/v1
and Open WebUI is back to talking to me.
This replaces
http://localhost:8880/v1
At this point I have no idea whether the localhost URL was entered by mistake at some point, or it worked earlier, then stopped working. Be that as it may, if Kokoro-FastAPI's running on Docker, Open WebUI speaks.

Credit goes to this YT video for the idea
Run Free Text-to-Speech Locally on Open WebUI: Kokoro TTS Setup Guide (Windows)