AI glossary · AI basics
Speech recognition
Speech recognition is AI that turns spoken words into text, so you can talk to a device or get a written transcript of audio.
Also called speech to text, voice recognition, automatic speech recognition, ASR
In more detail
Modern speech recognition uses deep learning to handle different accents, background noise and fast speech. It is the first step in most voice assistants: your words become text, then the assistant works out what you meant.
The reverse process, turning text into spoken audio, is text to speech.
Example
Dictating a message on your phone, auto-generated video captions and meeting note-takers all use speech recognition.
Related terms
Text to speech (TTS)Text to speech (TTS) is technology that reads written text aloud in a natural-sounding voice. AI has made these voices far more lifelike.Voice assistantA voice assistant is an AI assistant you control by speaking, such as Siri, Alexa or Google Assistant, that answers questions and controls devices.Natural language processing (NLP)Natural language processing (NLP) is the branch of AI that helps computers understand, interpret and produce human language.
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