inspect-robots-voice

Local spoken operator feedback for attended Inspect Robots evaluations. The plugin keeps the microphone open during a run, transcribes accepted utterances with faster-whisper, and sends them through the same operator-message channel as typed console feedback.

Voice input is feedback-only. Spoken words cannot end a trial or record a verdict. Silence and likely Whisper hallucinations produce no message.

Install

pip install inspect-robots-voice

PortAudio must be available for sounddevice on the machine connected to the microphone: sudo apt install libportaudio2 (Debian and Ubuntu), sudo dnf install portaudio (Fedora), or brew install portaudio (macOS).

Run

inspect-robots run --task my-task --policy agent --embodiment my-robot --voice

Voice mode requires an attended terminal. Repeat -V key=value to configure it:

Key	Default	Meaning
`model`	`small`	faster-whisper model size or local model path
`device`	system default	sounddevice input index or case-insensitive name substring
`language`	`en`	transcription language
`compute`	`auto`	CTranslate2 compute type

For example:

inspect-robots run --task my-task --policy agent --embodiment my-robot \
    --voice -V model=medium -V device="USB Microphone" -V compute=int8

Filtering

Audio is segmented locally with an adaptive energy gate. Each candidate then passes faster-whisper's bundled VAD plus duration, confidence, no-speech, and known silence-hallucination checks. Rejected candidates disappear silently so the policy receives only accepted operator utterances.

Transcription runs in a worker thread. The rollout loop never waits for speech recognition, and a voice pipeline failure disables voice input without disabling typed console feedback.

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