August 12, 2025 / by Margarita Núñez Estimated read time: 4 minutes
AI voice technology is advancing rapidly, transforming various industries and aspects of daily life. From entertainment and customer service to content creation and marketing, the use of AI voices is becoming more widespread. However, this development presents opportunities and considerations.
Not sure whether to choose AI voiceovers or human voiceovers? Then this free-to-download comparison table should help.
When to Use AI Voiceovers
- Large-scale educational content
- Corporate training and internal communications
- Product tutorials and explainer videos
- Projects with tight deadlines or limited budgets
When to Use Human Voiceovers
- High-emotion storytelling (e.g., documentaries, dramas)
- Premium branded video content or marketing campaigns
- Content requiring strong cultural adaptation or humor
Dubbing, Lip-synching, and UN-style Voiceover
Besides the type of voice, it is important to consider the type of voiceover most suitable for your content.
- Dubbing is when an actor's voice in the target language replaces the original. Lip movements don’t match, but the voiceover is time-coded so the speaker starts and finishes at the same time as the original. This is the most widely used option.
- Lip-synching is similar to dubbing, but the voiceover is synchronized to the original speaker’s mouth movements. This is a detailed and time-consuming process, and is a more costly option.
- A UN-style voiceover is when the original audio is lowered and replaced with a target language voiceover at a higher volume. The original speaker can still be heard, and it’s obvious that the voiceover is an interpretation of what’s being said. This is commonly used for interviews.
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