AI Video Sound Effects
Sound That Fits What It Sees
Upload a video and get sound effects and ambience made for it, as a separate audio file. Cost: from 5 credits for a 15-second video.
Trusted by 10,000+ creators worldwide
Footage In, Soundtrack Out
The model watches your video and writes the sound for it, so you do not have to hunt for effects.
Made for Your Footage
Effects and ambience follow the action in the video, so a silent AI clip gets a believable soundtrack.
Keep or Drop the Speech
Keep the speech already in the video and build the rest around it, or ask for sound effects only.
Steer With a Prompt
Add an optional prompt for the sound you want and a negative prompt for the sounds to keep out.
One to Four Versions
Ask for several variations in one run and pick the one that sits best under the picture.
Priced by the Video
From 5 credits for a 15-second video. You see the exact price before you run.
Audio You Can Edit
Download WAV, MP3, AAC or FLAC and lay it under the video in your editor.
Three Steps to a Soundtrack
Video in, audio out.
Upload a Video
Videos from 1 s to 600 s.
Choose the Options
Keep or drop the speech, add a prompt if you want one, and set how many versions you want.
Generate and Download
Check the price, run it, and download the audio from your History.
AI Video Sound Effects FAQ
What does AI video sound effects return?+
An audio file, or several versions of one, with sound effects and ambience made to match your video. It does not return a new video: you lay the audio under your clip in an editor.
How is this different from Add Sound to Video?+
Add Sound to Video is the quick one-step editor tool. This lander covers the longer, more controllable option: clips up to ten minutes, several versions per run, a negative prompt and a choice of audio format.
How much does it cost to add sound to a video?+
From 5 credits for a 15-second video. Priced per second of video and per version: two versions of the same 15 seconds cost 10 credits, and a 60-second video costs 19 credits. You see the exact price before you run.
How long can the video be for sound effects?+
Videos from 1 s to 600 s. The sound starts at the length of your video, and you can lower the length for a shorter sound.
What happens to the speech in my video?+
With Keep speech on, the voices already in the video are kept and the rest of the sound is built around them. Switch it off and you get sound effects only, with speech suppressed.
Can I tell it which sounds I want?+
Yes. An optional prompt describes the sound you want, and a negative prompt lists sounds to keep out. Without them the model decides from the picture alone.
Does it work on AI-generated clips?+
Yes, it works on any video you upload, which makes it a fast way to give a silent AI clip a soundtrack. Running it takes an account with a verified email and credits; there is no anonymous generation. If a run fails on the provider side, the credits go back to your balance.
Do I need a subscription?+
No. You can pay as you go: credit packs are one-time purchases and their credits never expire. If you would rather have a steady supply, the monthly Starter ($7.99), Creator ($19) and Pro ($49) plans refill your credits each month, and you can cancel anytime. Unused monthly credits do not roll over.