Text to speech (TTS)
Also: text-to-speech
Software that reads text aloud. Some tools can also imitate a voice.
The fuller definition
Text-to-speech systems synthesize spoken audio from text.
- Text
Approved wording
- Synthesis
Generate voice audio
- Playback
Listen to the narration
A simplified relationship, not a screenshot or a complete design.
A concrete example
A reader listens to a generated narration of an approved lesson.
The distinction that matters
A realistic voice does not establish that a human spoke those words or endorsed the content.
Related terms
Speech to text (STT)
Software that turns speech into text. Check names, numbers, and words it may have misheard.
FoundationsMultimodal
Able to work with more than text, such as images, audio, or video.
FoundationsGenerative AI
AI that makes content, such as text, images, or sound. What it makes may be wrong or may resemble existing work.
Where it is taught
What actually happens when you ask AI a question?Source and further reading
Google · Machine Learning GlossaryThe definition and example are written for this library. The link gives background, official documentation or legal authority as labelled. Legal scope depends on the jurisdiction and current text; product features depend on release and settings.