Feature Friday: Voices

Fine-tune voiceovers with speed, persistence, and regeneration controls.

• About this Session

Discover how Synthesia’s latest voice updates give you greater control and consistency over narration. In this session, we introduce voice persistence, speech regeneration, and speed control—three powerful tools that make your voiceovers more natural and aligned with your content and intended audience.

Here's what you'll learn:

• Voice persistence: Make edits without triggering unwanted speech changes.
• Speech regeneration: Regenerate specific paragraphs where you want a second take (or a third, or a fourth...).
• Speed control: Slow down or speed up delivery for specific phrases (0.8x - 1.2x).

Review this session to start crafting voiceovers with clarity, emotion, and confidence. These tools are now available for all supported voices in Synthesia.