Assistant

T

tes 2e830eaed4 Live wakeword loop: PortAudio input + queue + threshold detection

Replaces the Task 3 smoke-test Program.cs with the full inference loop:
- PA_ALSA_PLUGHW=1 and ORT_LOGGING_LEVEL=3 via both Environment.SetEnvironmentVariable
  and Libc.setenv (P/Invoke) per the Test 1 findings.md env-var gotcha.
- OrtEnv.CreateInstanceWithOptions with ORT_LOGGING_LEVEL_ERROR to suppress
  early GPU-discovery warnings from device_discovery.cc in ORT 1.26.0
  (the env var alone does not silence these; CreateInstanceWithOptions does).
- Callback-driven PortAudio input stream at 16 kHz / Int16 / 1280 frames/block.
- BlockingCollection<short[]>(16) queue; per-call new short[1280] allocation (no races).
- Main loop: Take() -> WakewordModel.Predict() -> threshold >= 0.5 with 1.0s cooldown
  -> DETECTED alexa score=... t=...s. No beep (Task 5 adds it).
- Console.CancelKeyPress -> cts.Cancel() -> graceful stream.Stop() + model.Dispose()
  + PortAudio.Terminate().

2026-06-12 11:57:54 +00:00

bin

Add bin/probe-cs-2: build + scp + run the C# wakeword probe on the Pi

2026-06-12 11:29:22 +00:00

docs/superpowers

Plan: C# probe re-implementing Test 2 (wakeword) on the Pi

2026-06-12 11:19:22 +00:00

tests

Live wakeword loop: PortAudio input + queue + threshold detection

2026-06-12 11:57:54 +00:00

.gitignore

Spec: voice assistant prototype phase