Narration over video or audio creative. Sound-off feed environments make voiceover optional; sound-on placements (YouTube, CTV, audio) make it central. AI voice tools now produce acceptable voiceover for tests and low-budget variants; broadcast still uses talent.
Related terms
Cite this entry:
Agency Echelon. "Voiceover." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/voiceover/