What is Speech Recognition?

Speech Recognition, explained

Speech recognition, also called automatic speech recognition or speech-to-text, analyzes audio to identify words. Modern systems use deep learning models trained on large amounts of recorded speech, which has made them far more accurate across accents, noisy environments, and specialized vocabulary than older systems.

Everyday examples include voice assistants on phones and smart speakers, automatic captions on video calls, and dictation in word processors. A medical clinic might use speech recognition to transcribe a doctor's dictated notes, which a staff member then checks. Accuracy still varies with audio quality, background noise, overlapping speakers, and uncommon names or terms, so important transcripts need review. Privacy also matters, because voice recordings can contain sensitive personal information.