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Claude
0d284fea9e
- Catalog: 3.3 MB zipformer keyword-spotting model (kws-en). - shared/keywords: BPE encoding of wake phrases (SentencePiece table for common words, greedy longest-match fallback over the model vocabulary) and keywords file builder. - Worker: KeywordSpotter stream fed with 16-bit PCM, detections pushed as unsolicited messages; engine derives the keywords file, maps sensitivity to threshold/score, forwards detections to the renderer and re-arms after a worker restart. - Renderer: WakeListener keeps one microphone stream, batches 256 ms frames to the spotter and captures the command on the same stream after detection (pre-roll, VAD), then resumes spotting; the wake word also interrupts speech. Settings: wake mode (off / always-on / transcript filter), keyword, sensitivity, status and one-click model download; HUD caption shows the active keyword. - Validated: detection in the worker (fork) and through the real Electron IPC path on Kokoro audio, no false positive on an English recording; 23 unit tests. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017Wn5VX9HNbJ7N54hR24u9Y