Dubbing Best Practices | Sarvam API Docs

Practical guidance for getting a clean dub on the first pass, organized by where in the workflow it applies.

Before You Upload

A clean source recording matters more than any setting downstream - noise or overlapping speech in the original carries through into the dub.

Count your speakers accurately before upload - this drives diarization quality more than any other single setting.
When unsure of the exact speaker count, round upward. Merging an unused extra slot is a smaller error than blending two real speakers into one.
Match Source language to what’s actually spoken - this affects transcription accuracy, not just translation.

Choosing a Speaker Strategy

Choose Clone speaker voice when audience recognition of the specific speaker matters - hosts, founders, recurring instructors.
Choose Use Sarvam voices when you want a fast, consistent persona across many pieces of content and the original speaker’s identity isn’t the point.
Leave the style dropdown on Auto unless you have a specific reason not to - it picks a style automatically.
Override it to Formal for official or institutional content, or to Urban colloquial for trend-aware, casual content - a serious subject translated in Urban colloquial style will undersell it, and vice versa.

Reviewing Output

Review multi-speaker dubs speaker-by-speaker, not line-by-line - it’s the fastest way to catch a diarization error where two voices were merged into one.

Spot-check pronunciation on names, brand terms, and technical vocabulary - these are the most common source of small errors in an otherwise good dub.
Use per-block regeneration for isolated fixes. Re-running the whole file for a one-line correction wastes review time on lines you’ve already approved.
If a dub’s tone feels flat or overly formal, revisit the style dropdown before assuming the voice model is at fault - style has an outsized effect on perceived tone.
For a recurring term or name that’s consistently mistranslated across blocks, use Find & Replace in the editor instead of fixing each occurrence one by one.

Balancing the Final Mix

The editor’s three volume sliders - Dubbed, Original, and Background - let you blend rather than fully replace the source audio.

Keep some Background volume when the source has ambient sound or music you want to preserve - muting it entirely can make a dub feel sterile compared to the original.
Lower, rather than mute, Original if you want a subtle sense of the source voice underneath the dub; mute it fully for a clean, dub-only listen.

Managing Multi-Language Projects

If you dubbed into several target languages at once, use the language pill in the editor header to review and fix each one independently - edits in one language don’t affect the others.
Export each language separately once you’re satisfied with it, rather than waiting for every target language to be fully reviewed before exporting any of them.