higgsfield-audio

To add dialogue and background music to AI-generated videos, you structure an audio prompt using four-layer decomposition: dialogue, SFX, ambient, and BGM, applying model-aware constraints to ensure natural lip-sync and prevent audio conflicts.

Writing video prompts for lip-sync dialogue requires specifying character lines with tone, language or dialect, and voice guidance while following strict lip-sync rules and clip length constraints to match the target model's capabilities.

To sync sound effects to specific actions in AI video generation, you place specific sound events at the exact moment of on-screen actions using timestamp anchoring while limiting ambient elements to avoid muddiness.

Yes, this audio prompting approach works with Kling and Veo models, as well as Seedance, Grok, and Cinema Studio 3.0, by applying model-specific audio guidance, MP3 requirements, and timestamp anchoring rules.

Limitations when adding background music include avoiding competing tokens that override dialogue, preventing audio conflicts by describing music texture and timing, and adhering to strict clip length constraints to maintain clear lip-sync.