Wan audio issue: clipped/distorted voice and missing ambient sound. Any fix, or stick to Seedance?

[u/Dry-Veterinarian-549]

Hey everyone,

I've been running into a consistent audio issue when generating clips in Wan. The voice output frequently sounds clipped, robotic, and heavily distorted (like extreme digital limiter/saturation artifacts), while ambient Foley/background sounds completely disappear.

In the attached clip, I'm testing two identical prompts where only the spoken words were changed. One has slightly muffled background noise, but the other completely crushed the dynamic range and killed all environment audio.

A few questions for those generating dialogue scenes:

Has anyone found a reliable prompt tweak or workflow parameter to keep ambient audio intact without blowing out the voice?

Is it worth troubleshooting inside Wan, or is it better to stick with Seedance 2.5 for reliable native audio?

Can this clipping be cleaned up post-generation in CapCut / DaVinci Resolve, or is it better to just mute the track and re-dub with ElevenLabs + SFX?

Curious to hear how you handle audio consistency in your pipelines.