This preset adds the sound of rain, not visible rain: it outputs audio. Upload the video that needs weather, and you get a rain bed you can loop under the scene.
What this preset does
Silent generated video reads as fake. One layer of the right sound fixes that.
The prompt behind it
The prompt is written in English because models follow English most reliably. You can edit it in any language, but English usually gives the most predictable result.
steady rain on a window
More effects
Rain runs in Sound Effects at 5 credits per clip. The preset is filled in for you and the exact cost shows before you generate.
The footage you bring
Sound Effects accepts a video upload and reads the action in it. Anything with visible rain or a reason for it gives the sound something to follow. Think of a window with streaks, a figure under an umbrella or a wet street at night. If your shot is dry, the audio still works as off-screen weather. That is an old trick for setting mood in an interior scene.
Upload the clip as it will appear in the edit, and keep it short. The model handles short clips only.
Choosing what the rain lands on
Rain is mostly the sound of what it hits. The preset asks for steady rain on a window. For a car interior, try "rain drumming on a car roof and windshield, wipers off, muffled". For a city exterior: "light rain on pavement, tires hissing on wet road, no thunder". For a quiet room: "soft rain against a window pane, low room tone, no gusts".
Keep "no music" in the prompt. A rain bed with a melody is hard to place under anything else.
Making it loop and sit under dialogue
The preset does not set a length, so plan the loop in your editor. Test the join by playing the end into the start a few times. A gust or thunder roll near either end makes the join obvious. If your scene has speech, listen for hiss in the range where voices sit. When it competes, ask for "soft, low, distant rain". A single thunder clap is a strong event, so make sure it does not land on an important line.
Rate and budget
One clip costs 5 credits, about $0.05 at the best pack rate. A batch of ten different weather beds is 50 credits, about $0.53. The listed alternative, MMAudio, charges 5 credits per clip, so choose on sound rather than price.
Layering rain into the final mix
Put the rain on its own track. Lower it when the camera goes inside and raise it on exterior shots. Layer two runs, one close and detailed and one distant and soft. Together they give a depth that one track rarely has. If your footage came from a video model that already carries its own audio, check for doubled rain. Then mute the weaker layer.
What Rain actually changes
Adds the sound of steady rain under your clip: drops on glass, a soft hiss, no music.
When it works and when it does not
Works under quiet scenes, interiors and night shots, where the sound sets the mood.
Fails under loud dialogue or music, where rain turns into noise.
Getting a better result
Match the rain to the picture. Name the surface it hits: glass, a car roof or pavement.
Questions about Rain
Will this preset add rain to my picture?
No. The output is audio only: the sound of rain for a video you upload. To show rain on screen, use a video or image effect first. Then bring the clip here for the sound.
Can I get a long rain ambience?
The model makes short clips. Ask for a loopable bed and repeat it in your editor. You can also generate a few runs with slightly different prompts and alternate them. That makes the loop less noticeable.
How much does a rain sound clip cost?
5 credits per clip, roughly $0.05 at the best pack rate. Ten clips cost 50 credits, and the cost is visible before you generate.
