Real-Time Word Highlighting
Advanced speech recognition technology that brings instant, word-by-word visual feedback to pronunciation practice. Learn how it works, try the demo, and understand browser and language compatibility.
Feature status
Fallback mode
Language support
Full support
Auto-stop delay
0.5s
Device detected
Desktop
How it works
- Uses the Web Speech API with interim results enabled for live transcripts.
- Processes speech in real time and compares the transcript to the target sentence.
- Aligns each spoken token to the sentence and updates highlights instantly.
- Applies visual states to show progress, pacing, and any missed words.
Key benefits
- Immediate feedback on pronunciation accuracy and timing.
- Higher engagement during practice sessions with visual progress cues.
- Automatic recording stop when the sentence is complete.
- Lower cognitive load thanks to clear instructional visuals.
Current word
The word you are actively speaking, highlighted with a subtle pulse for clarity.
Spoken words
Words that have already been confirmed, helping you track overall progress.
Next word
A preview of the upcoming word to keep the pace natural and confident.
Missed words
Words that were skipped before the session ended, surfaced for quick review.
Primary workflow
- 1
Word detection
Each spoken word is matched in real time against the practice sentence.
- 2
Completion check
The system looks for near-completion before preparing to stop.
- 3
Delay timer
A configurable pause confirms that you really finished speaking.
- 4
Auto-stop
Recording ends automatically once the delay expires without new words.
Fallback to silence detection
When real-time highlighting is unavailable, silence detection preserves auto-stop accuracy without additional configuration.
- 1
Audio monitoring
Continuously inspects audio levels to understand when speech is present.
- 2
Silence detection
Identifies silence windows when voice activity falls below the threshold.
- 3
Delay timer
Uses the same delay value to avoid cutting off lingering syllables.
- 4
Auto-stop
Stops recording automatically when silence is confirmed.