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Video

Add Sound to Video

Upload a clip and AI watches what happens on screen, then adds sound effects or music in sync.

6 free credits on sign up

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Many video models return silent clips, and phone footage often sounds worse than it looks. Hunting through sound libraries and lining effects up frame by frame takes ages. Here AI does it for you.

In Sound effects mode, Mirelo SFX 2.0 watches the clip and builds a soundtrack for what it sees: footsteps, a door slam, a car engine, waves, clinking dishes. You can add what the camera doesn't show, like "distant thunder" or "busy café". Speech in the original clip is kept by default.

In Music mode, Eleven Music by ElevenLabs composes a track to the length, pace and cuts of your video. Describe a genre and instruments, or leave it to the model. If the clip already has sound, the music sits underneath and dips whenever someone speaks.

Clips from 1 to 60 seconds and up to 70 MB work. The price depends on the length of the video, and failed generations are refunded.

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What the tool can do

01

Sound from the picture

AI sees the action and voices it

02

Music to the edit

A track that follows pace and cuts

03

Speech is kept

Voices in the clip stay in place

04

Guide it with words

Off-screen sounds, genre or instruments

05

Up to 60 seconds

Clips up to 70 MB

06

Refunds on failure

Credits come back if it doesn't work

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Who it's for

AI-generated clips

Give silent model output a soundtrack

Reels and Shorts

Music for the edit without track hunting

Product ads

Unboxing rustle, clicks and fizz

Games and animation

Effects for trailers and clips

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How to add sound to a video

01

Upload a video

1 to 60 seconds

02

Pick sound effects or music

Describe what you want if you like

03

Download the clip

The same picture with a new soundtrack

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Prompt examples

See what you can create — try it yourself

Prompt

«Sound effects: distant thunder and rain on the roof»

Result

Atmosphere the picture doesn't show

Prompt

«Sound effects: no prompt»

Result

Footsteps, engines, waves from what's on screen

Prompt

«Music: calm lo-fi with piano»

Result

A bed for a vlog or review

Prompt

«Music: epic orchestra building to the end»

Result

A trailer score

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Pricing

Pay only for results — no subscription

All plans →
Model / operationCredits
  • Sound effects · Mirelo SFX 2.0 · 5 s10 cr.
  • Sound effects · Mirelo SFX 2.0 · 10 s19 cr.
  • Music · Eleven Music · 10 s7 cr.
  • Music · Eleven Music · 30 s19 cr.

Credit packs: 150 credits for $5, 350 credits for $12, 1250 credits for $35.

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Add Sound to Video FAQ

Does the video itself change?+

No. The picture stays the same; only the soundtrack is replaced or added.

What happens to speech in the clip?+

In Sound effects mode, speech is kept unless you turn the toggle off. In Music mode, the original sound stays under the music and the music dips when someone talks. Turn the toggle off to keep only the music.

How do the modes differ?+

Sound effects (Mirelo SFX 2.0) voices the action on screen: steps, hits, engines, nature. Music (Eleven Music) writes a track to the mood and edit of the clip.

How much does it cost?+

The price depends on clip length: 10 seconds of sound effects is 19 credits, 10 seconds of music is 7. Failed generations are refunded.

Try for free

Sign up for free and get 6 credits right away. No card required.