A weathered fisherman in a yellow raincoat on a boat deck in heavy rain looks into the camera and says: "Storm's coming. We head home now."
Use prompt →AI voice · music · sound effects
Add voice, music and sound to any AI video
Tap the video. Hear the same clip four ways, then make your own.
AI-generated
videoA vintage steam train crosses snowy mountains at golden hour.
Tap any clip for sound
Open AI Video ProVideo and sound, made in one pass
Extreme close-up of a chef tossing noodles in a flaming wok at a night market, loud sizzling, spatula clanging, crowd chatter.
Use prompt →A neon-lit alley at night in heavy rain, a scooter splashes past, distant thunder, rain drumming on metal awnings.
Use prompt →Huge waves crash onto a black volcanic sand beach at sunrise, foam rushing up the shore, seagulls, gusting wind.
Use prompt →A jazz trumpeter plays a slow soulful solo in a smoky club, double bass and brushed drums behind him.
Use prompt →An old wooden door creaks open at the end of a candlelit stone hallway, slow footsteps echo, cold wind howls.
Use prompt →ElevenLabs v4 voices
Open AI Voice3 crPick a voice. Tap to hear it.
Songs and instrumentals
Make music5 crType a vibe, get a track
Sound effects
Make a sound3 crPlay the pads
One plan. Video, voice, music, sound.
- Voice line 3 cr
- Custom voice 5 cr
- Song 5 cr
- Sound effect 3 cr
- Song in your voice 10 cr
How to add sound to an AI video
- 1. Make the video. Create a clip in AI Video Pro. Seedance and other engines can generate sound in the same pass.
- 2. Add a voice. Type the line, pick an ElevenLabs v4 voice, and steer it with tags like [whispers] or [laughs].
- 3. Add music and sound. Open the clip in the video editor and use Add music or Add SFX: describe the track or sound in a few words and it lands on the timeline.
Voices on this page are ElevenLabs v4. Video clips and their sound are Seedance 2.0 native audio; songs and sound effects come from the GoCrazyAI library. Comparing tools? Read GoCrazyAI vs ElevenLabs.
Go deeper: AI Voice · AI Music · Sound effects · Video editor
FAQ
Which AI models make the audio?
Voices run on ElevenLabs v4, with v3 and Multilingual v2 as backups, and custom voices on ElevenLabs Voice Design. Music, sound effects and video sound use the engine that fits the request best, including Seedance native audio.
Can I add music to a video I already made?
Yes. Open it in the AI video editor and use the Add voice, Add music or Add SFX tabs. Each one generates the audio and places it on your timeline.
How much does it cost?
A voice line is 3 credits, a sound effect 3, a song 5 and a custom voice 5. Credits come with every plan.
Can the video characters talk?
Yes. Write the line in quotes in your video prompt and engines with native audio speak it with matching lip movement, like the fisherman clip above.
Is GoCrazyAI part of ElevenLabs?
No. GoCrazyAI is an independent studio that uses ElevenLabs voice models alongside other AI models. ElevenLabs is a trademark of its owner.
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