How does it know what sounds to generate?

MMAudio V2 analyzes the visual content of each frame and generates audio that matches the on-screen action and movement.

Can I control what sounds are generated?

Yes. Use the text prompt to describe desired sounds and the negative prompt to exclude unwanted ones like 'music' or 'speech'.

What video formats are supported?

MP4, WebM, and most common video formats. Output is MP4 with the generated audio track merged in.

Does it replace existing audio?

Yes, the generated audio replaces any existing audio track. For best results, use videos where you want entirely new sound design.

How realistic are the generated sounds?

Very realistic. MMAudio V2 is trained on millions of video-audio pairs and produces natural, synchronized sound effects.

How long can the video be?

The model works best with clips up to 8 seconds. Longer videos are truncated to the specified duration.

What kinds of sounds work best?

Environmental sounds, impacts, footsteps, nature sounds, machinery, and ambient audio. Pure speech and complex music are less reliable.

How much does it cost?

Each generation costs 1 credit. New accounts get free credits to try all our AI video tools.

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