Lip-synced, time-synced and non-synced dubbing — how each one works, and how to choose the right approach for your project.
In this article
The world of audiovisual media is vast and diverse, and dubbing plays a significant role in its success. Dubbing is the process of replacing the original voice track in a video or film with a new, translated voice track in another language. In this article we explore the different types of dubbing, their production processes, and how to choose the right style for a seamless viewing experience.
Lip-synced dubbing
The most common and complex form of dubbing. It replaces the original voice track with a new one that matches the actors' lip movements, so it appears they're speaking the translated language. The process involves:
- Script adaptation — the script is translated to fit the target language and the actors' lip movements, accounting for different sentence structures and grammar.
- Casting — voice actors are chosen to match the original actors' vocal characteristics and expressions.
- Recording — actors perform while watching the video, synchronising with the on-screen lip movements. Even slight misalignments break the experience.
Time-synced dubbing
Also known as rhythm-sync dubbing, this aligns the translated track with the timing of the original dialogue. It may not match lip movements exactly, but keeps a natural flow and pacing:
- Script adaptation — the translated dialogue is adjusted to fit the same time constraints as the original.
- Casting — actors are chosen for the right emotion and tone; matching the original voice is less critical.
- Recording — actors keep the original pacing and rhythm in mind.
Non-synced (wild) dubbing
A more straightforward method that doesn't require matching lip movements or timing. It's often used for off-screen narration, documentaries, or visuals that don't need precise synchronisation. Script adaptation focuses on accuracy and cultural relevance, casting prioritises clear, expressive delivery, and recording gives actors the freedom to focus purely on performance.
Choosing the right style
Each style has trade-offs. Lip-synced dubbing offers the most immersive, seamless experience but is the most time-consuming and costly. Time-synced dubbing gives a natural flow with more flexibility and lower cost, at the price of minor lip-sync discrepancies. Non-synced dubbing is the simplest and most flexible, but isn't suitable when the visuals demand accurate synchronisation. The right choice depends on your content type, target audience and budget.
Conclusion
Dubbing breaks down language barriers and helps audiovisual content reach a wider audience. Every stage — from script adaptation and translation to casting and recording — requires skilled professionals working together. As a voice over agency, we're well-versed in each type of dubbing and their production processes so we can deliver the right solution for your project. Get in touch to find the perfect voice for your content.
