Yes — regenerating the entire voiceover in the editor does consume credits.
Each new voiceover involves advanced AI processing, which comes with real-time computational costs. To keep things transparent and affordable, Zebracat only uses credits for features that require significant processing, like:
Full voiceover regeneration
Generating new AI visuals
Minor edits, such as trimming clips or adjusting timing, do not use additional credits. But generating a brand new voiceover will.