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Phonon for Windows beta 4 and Linux preview

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@Infatoshi Infatoshi released this 09 Nov 05:08
v1.0.1-win-beta.4
eae84a8
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Phonon for Windows, beta 4, and Linux preview

A more accurate speech recogniser. Everything else is as in beta 3.

What's new

  • Phonon's own speech model (N8avg). Parakeet TDT 0.6B v2 with Phonon's N8avg fine-tune merged in. It was trained only on public, openly licensed speech, with no personal recordings. On 578 real dictation clips it makes fewer errors than the stock model (word error rate 0.49 points lower, 95% CI 0.28 to 0.71). On the public LibriSpeech recordings used to test long dictations, raw word error rate is 1.83% on the 410 s recording (unchanged) and 1.35% on the 900 s one (was 1.69%). After correction it was 1.83% / 1.35% on Windows and 2.10% / 1.48% on Ubuntu; correction varies by a few words from run to run.
  • The same files as the Android keyboard. Both download from Infatoshi/phonon-asr-parakeet-tdt-0.6b-v2-onnx, pinned to commit 76fbda42 and checked against its sha256 before use. The encoder's weights now sit in a separate file that is read from disk as needed.
  • Updating downloads the new speech model once (about 630 MB) and then deletes the old one. The correction model is unchanged.

Windows (beta 4)

Run Phonon-Setup-1.0.0.exe. The file still carries version 1.0.0. Tested by installing over an earlier build in a Windows 11 VM that held the stock speech model: the update fetched the new model, removed the old one, and transcribed and corrected both long LibriSpeech recordings in full.

Not code signed: SmartScreen shows "Windows protected your PC" the first time. Choose More info, then Run anyway.

Linux (preview)

sudo apt install ./phonon_1.0.1-beta4_amd64.deb

The package version is 1.0.1~beta4, so it upgrades beta 3. Tested on Ubuntu 26.04 by installing over beta 3. Requirements and setup are unchanged: Ubuntu 24.04 or later on x64, GNOME or KDE Plasma, Wayland or X11, hold Right Ctrl to dictate.

Known issues

  • English only.
  • Tag questions and leading answer words ("..., right?", "Yeah, ...") are often removed as filler.
  • Windows: balloons do not stay in the notification center.

Checksums (sha256)

42a7b04a85a49f12d6e7fbab542c1ee96400a828d47c98265f6293fdc52e4b51  Phonon-Setup-1.0.0.exe
ff05553fce9bc2a4d28393bcc51fb20ad9688ff039172b986cb0f906b9608a59  phonon_1.0.1-beta4_amd64.deb

Speech model files (sha256)

5c0a15da8929acd0ddd559471a201bd8ede3bbe2a7f2df6f606d68b8b73f52bb  encoder.int8.onnx
f91c1c8d1c8269c9d21d4d23e7590b924243ce6036a1ff787e0e1beb515dabca  encoder.int8.onnx.data
b6bb64963457237b900e496ee9994b59294526439fbcc1fecf705b31a15c6b4e  decoder.int8.onnx
7946164367946e7f9f29a122407c3252b680dbae9a51343eb2488d057c3c43d2  joiner.int8.onnx
ec182b70dd42113aff6c5372c75cac58c952443eb22322f57bbd7f53977d497d  tokens.txt

License

GPL-3.0. The speech model is CC-BY-SA-4.0 (NVIDIA Parakeet, CC-BY-4.0, adapted with EdAcc, CC-BY-SA-4.0, among other public sets); the refiner weights are under the LFM Open License v1.0; the runtimes are sherpa-onnx (Apache-2.0) and llama.cpp (MIT).

Assets 4
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