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I built a 100% local, CPU-only voice loop for any LLM — no GPU, no cloud, nothing leaves your machine (Silero VAD + Parakeet STT + Supertonic TTS 3)
Every voice interface I found either needed a GPU, a cloud API, or was locked to one OS. So I built one that needs none of that — and benchmarked it so the numbers are real. The stack — all ONNX, all CPU: Silero VAD — neural voice activity detection, ~0.09 ms/frame. Knows when you stop talking so there's no push-to-talk. Parakeet TDT 0.6B v3 — INT8 transcription, 25 languages, OpenAI-compatible on :5093. A 2.4 s clip → 307 ms on an i7 (~8× realtime). Supertonic TTS 3 — FP16 syn...












