Technology
How does speech recognition work?
Speech recognition works by turning the sound of your voice into text. Software breaks the audio into tiny pieces, uses AI trained on huge amounts of speech to match those sounds to words, and uses language patterns to pick the most likely sentence.
See it in motion.
Watch a 2-minute animated lesson that shows exactly how speech recognition works.
Step by step
- 1Your voice is captured and split into tiny audio segments.
- 2AI matches the sound patterns to likely words.
- 3Language models pick the most probable sentence.
- 4It improves with more training data and context.
Frequently asked questions
- How does speech recognition work?
- It converts audio into segments, uses AI to match them to words, and language models to form the likely sentence.
- Why does speech recognition make mistakes?
- Accents, background noise, and similar-sounding words can all trip it up.
- What uses speech recognition?
- Voice assistants, dictation tools, captions, and voice-controlled devices.