AI audio and video glossary

This glossary explains the key terms of AI audio and video creation in plain language, from text to speech and voice cloning to AI dubbing, speech to text and royalty-free music. Each entry gives a short definition, how the technology works, what it is used for and its limits, with a link to try the matching tool on wawie, free to start.

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Text to speech (TTS): Text to speech converts written text into natural-sounding spoken audio, used for voiceovers, narration, accessibility and voice assistants.
Voice cloning: Voice cloning builds a synthetic copy of a specific person's voice from recordings, so new speech can be generated in that voice.
AI dubbing: AI dubbing translates the speech in a video and re-voices it in another language, timed to the original and optionally in the original voice.
Voice changer: A voice changer alters how a voice sounds, from simple pitch effects to AI that re-voices a recording in another realistic voice.
Voice isolation: Voice isolation separates a voice from background noise, music and room echo, leaving clean speech you can publish, transcribe or dub.
Speech to text (STT): Speech to text converts spoken audio into written text, powering transcripts, automatic subtitles, dictation and voice assistants.
AI music generation: AI music generation uses machine learning to compose and produce original music, usually from a short text description of style and mood.
Sound effects generation: Sound effects generation uses AI to create sound effects and ambiences from a text description, instead of recording them or searching a library.
Voiceover: A voiceover is narration recorded separately and played over video, film, ads or presentations, by a speaker who is usually off screen.
Royalty-free music: Royalty-free music is licensed so you can use it without paying a royalty for each use, although it is not necessarily free.

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