Falling audio reads as believable when the motion cue and the landing agree. Use prompts that specify what is falling, how far it drops, and what it hits, then adjust perspective so the transient and decay match your scene. The tips below help you get a clean whoosh, a clear impact, and a tail length that fits your cut.
Specify the source and material
Start by naming the thing that falls and its material. A human fall needs cloth and weight shift, while a metal tool needs clank and ring. Clear material language helps the generator pick the right texture and pitch.
- Use: person body, metal wrench, glass bottle, loose gravel
- Add weight cues: light, heavy, bulky, hollow
- Ask for texture: cloth rustle, gritty debris, metallic ring
Control height, speed, and motion cue
Height changes the timing. Short drops are mostly impact, while longer falls need a sustained whoosh or wind rush. If your edit cuts before the landing, prompt no impact for a clean tail.
- Short: table drop, waist height, quick impact
- Medium: stair tumble, repeating hits, uneven rhythm
- Long: freefall whoosh, steady texture, optional delayed impact
Match the landing and the decay
Landing surface defines the transient shape and how long the tail rings. Concrete gives a hard attack, wood gives a warmer thud, and water adds splash and bubble decay. Choose a tail that supports the scene rather than filling the whole mix.
- Surfaces: concrete smack, wood thud, dirt crunch, water splash
- Space: dry close, small room tone, long shaft reflections
- Tail length: short decay for dialogue, longer decay for isolated shots
Avoid common prompt traps
Overstuffed prompts often produce messy timing. Keep one main action (fall) plus one landing, then regenerate small variations to fine-tune. If the clip feels noisy, request a lower noise floor and a cleaner transient.
- Avoid stacking too many actions in one line
- Do not mix scale cues like tiny object with massive impact
- Ask for clean start, minimal hiss, and controlled reverb
