audio | Kling AI
Video to Audio
Upload a video and the AI watches what happens on screen to generate matching sound effects and background music — perfectly synced to the action
audio
Video-to-Audio
Kling AI
Most AI-generated videos are silent. Video to Audio fixes that. Upload any video clip and the AI analyzes what is happening visually — people walking, water flowing, objects moving, scenes changing — then generates sound effects and background music that match the on-screen action.
You guide the result with two separate prompts. One describes the sound effects you want — footsteps on gravel, a door closing, glass clinking. The other describes the background music — upbeat electronic, soft piano, dramatic orchestral. The AI layers both together and syncs them to what it sees in the video.
ASMR mode is available for close-up content where you want intimate, detailed sound — typing on a keyboard, brushing fabric, pouring liquid. It produces whisper-close audio that feels like the viewer is right there.
This is the tool you use after generating a silent video with any other tool on the platform. Create your video with Kling Video or Motion Control, then run it through Video to Audio to add a professional sound layer — no stock audio library needed, no manual editing, just AI-generated sound designed specifically for your clip.
You guide the result with two separate prompts. One describes the sound effects you want — footsteps on gravel, a door closing, glass clinking. The other describes the background music — upbeat electronic, soft piano, dramatic orchestral. The AI layers both together and syncs them to what it sees in the video.
ASMR mode is available for close-up content where you want intimate, detailed sound — typing on a keyboard, brushing fabric, pouring liquid. It produces whisper-close audio that feels like the viewer is right there.
This is the tool you use after generating a silent video with any other tool on the platform. Create your video with Kling Video or Motion Control, then run it through Video to Audio to add a professional sound layer — no stock audio library needed, no manual editing, just AI-generated sound designed specifically for your clip.
Best results
Clear Visual Action
Videos with visible, recognizable actions produce the best audio. A person walking, water splashing, or hands clapping gives the AI clear cues to generate accurate matching sounds.
Separate SFX and Music Prompts
Describe sound effects and background music in their own fields. Saying footsteps on wood floor in one and soft jazz piano in the other gives much better layered results than mixing everything together.
Be Specific with Sound Descriptions
Rain on a tin roof with distant thunder works far better than rain sounds. The more specific you are about the type, texture, and distance of the sound, the more realistic the result.
Try ASMR for Close-Up Videos
If your video shows close-up actions like cooking, crafting, or texture details, enable ASMR mode. It generates intimate, detailed sound that makes the viewer feel present in the scene.
Keep Videos Under 20 Seconds
Video to Audio works with clips between 3 and 20 seconds. Shorter clips with focused action produce the most accurate sound synchronization.
Chain with Other Tools
Generate a video with Kling Video, Motion Control, or Video Effects first, then add sound with Video to Audio. This two-step workflow produces complete audiovisual content from a single photo.
Guides
Video to Audio
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Audio
Video to Audio — Technical Guide
Upload a video and the AI watches what happens on screen to generate matching sound effects and background music — perfectly synced to the action