Voice Control

Rhema listens for a small set of voice commands so you don't have to break flow at the lectern. Commands are recognized inline with the sermon transcript — there's no wake word and no separate listening mode.

When the detector matches a voice command (here "read in NIV"), the phrase is highlighted in the transcript and the active-translation badge in the header flips to the new value. Click to expand.

Translation switching

The translation switcher activates whenever the detector hears one of these patterns:

• "read in NIV" / "switch to NIV"
• "read in ESV" / "switch to ESV"
• "read in NASB" / "switch to NASB"
• "read in NKJV" / "switch to NKJV"
• "read in NLT" / "switch to NLT"
• "read in KJV" / "switch to KJV"
• "read in Amplified" / "switch to Amplified" → AMP
• "read in Spanish" / "read in Reina Valera" → SpaRV
• "read in French" → FreJND
• "read in Portuguese" → PorBLivre

Patterns are case-insensitive. Once recognized, the active translation flips immediately and the live overlay reflows. The full alias table lives in src-tauri/crates/detection/src/direct/detector.rs.

Chapter navigation in reading mode

When the pastor announces a passage to read through ("Let's turn to Romans 8"), Rhema enters reading mode and the queue locks to that chapter. Voice commands then advance through the text — these are the exact patterns the detector matches in src-tauri/crates/detection/src/reading_mode.rs:

• "next" / "next verse" — advance by one verse
• "previous verse" / "go back" — back by one verse
• "next chapter" / "previous chapter"
• "chapter N" — jump to chapter N
• "verse N" — jump to verse N
• "chapter N verse M" — jump directly to chapter N verse M

Reading mode exits automatically when detection drifts back into free-form citation territory — there's no explicit "exit reading mode" phrase to memorize.

Disabling voice control

If your service style doesn't suit voice commands — or if a guest speaker keeps tripping them accidentally — you can turn voice control off in Settings → Detection. Translation switching and chapter navigation then fall back to UI/remote control only.

Detection guards

The command lookup happens in Detector::detect_translation_command in direct/detector.rs, which searches a fixed alias table and returns the matched translation code (or None). Behavioral guards layered on top:

• Sermon context awareness — when reading mode is engaged the detector prefers navigation patterns over fresh translation switches.
• Duplicate suppression on the recent-command path — the direct detector tracks recently pushed candidates and skips re-emitting an identical match into the same window.