Seedance 2.5 会与画面一起生成声音：环境音、脚步声或盖子扣上的咔哒声等拟音，以及简单的音乐元素，全部来自提示词。把声音单独写成提示词末尾的一句话，例如“Sound: rain on a tin roof, a distant train.”（声音：雨打铁皮屋顶，远处的火车）。如果需要某首特定的授权音乐，可以把它作为参考音频添加，或之后在剪辑软件中加入。在 Seedance 2.5 上，音频不会改变积分费用。
Seedance 2.5 提示词示例
30 秒一镜到底：夜市seedance-2.5
One continuous handheld shot through a rainy night market. Start on a steaming bowl of noodles on a counter, tilt up to the cook laughing with a customer, follow a woman in a yellow raincoat as she walks past lantern-lit stalls, end on her turning back toward camera under a red awning as the rain gets heavier. Neon reflections in puddles, 24fps, anamorphic look. Sound: rain, sizzling woks, crowd murmur, a distant scooter.
Using the referenced product images, a matte sage-green insulated bottle on a wet slate surface in soft morning light. Shot one: slow 90-degree orbit at eye level. Shot two: macro on the cap as a hand twists it open, condensation beading. Shot three: pull back to a wide shot with the bottle centered and empty space on the right. Clean, minimal, no text. Sound: quiet room tone, a soft twist and click.
Continue the shot: the woman in the yellow raincoat steps under the awning, shakes water from her sleeve, and looks up at the string of lanterns as they sway. Camera holds, slight push-in. Keep the same lighting and rain intensity. Sound continues: rain, market ambience.
Studio product film. A pair of matte-black over-ear headphones rests on a slab of wet dark slate. The camera begins on a tight macro of the ear cushion stitching, then pulls back on a slow motorized slider to reveal the full silhouette. A single hard key light from the upper left throws a crisp rim highlight along the headband; soft fill from a large overhead diffuser. Fine mist drifts through the beam. In the final second, a bead of water slides off the cup and lands with a soft, clean drip sound. Sound design: low room tone, subtle hum of the light, the single drip. No text, no logo.
Fashion film, 35mm anamorphic look, rich saturated color. A model in a floor-length emerald-green silk coat stands in a sunlit terracotta courtyard, late-afternoon golden light raking across ochre walls and a cobalt-blue door. A wind machine off-screen lifts the coat in slow waves. The camera orbits a quarter turn at hip height, shallow depth of field, soft warm lens flares. Palette: emerald, gold, terracotta, cobalt. Motion is unhurried; fabric moves in slow motion while the model holds a steady gaze into the lens. Sound: fabric rustle, distant wind, no music.
Cinematic scene. Interior of an overnight train at 2 a.m. A woman in a wool coat rests her forehead against the window; rain streaks the glass and the passing sodium lamps paint moving orange bars across her face. The camera is locked off on the seat opposite, slight handheld drift. Rich color: amber lamp glow against cool teal-blue night outside the window, deep shadows, subtle film grain, warm practical light from a reading lamp above. Halfway through she exhales and closes her eyes. Sound: steady rail rhythm, rain against glass, the lamp buzzing faintly.
Character close-up. An elderly lighthouse keeper with a white beard, weathered ruddy skin and a faded red wool sweater sits in a stone room, a kerosene lamp throwing warm amber light on the table while deep blue dusk fills the small window behind him. Medium close-up, 50mm, camera slowly pushing in. He looks just off lens, half-smiles, and says in a low gravelly voice: "They said the light would never fail. I never asked who they were." Lip movement matches the line. Lamp flicker, wind pressing on the shutters, a slow foghorn far away.
Vertical social ad, bright and punchy. A tall glass of ice sits on a sunlit white marble counter beside a bowl of bright oranges and a sprig of fresh mint, a coral-pink wall behind. Cold brew coffee pours in from above in slow motion, dark ribbons swirling through the ice, then a splash of oat milk clouds the glass from the bottom up. Quick whip-pan to a top-down shot as the milk blooms. High-key daylight, crisp highlights, very shallow focus. Energetic pacing with two fast cuts. Sound: ice cracking, liquid pour, one satisfying clink.
Abstract music visual, vivid color. Drops of magenta, cyan and gold ink fall into clear water inside a glass tank against a deep black backdrop, each color blooming and mixing into violet and teal clouds. Each drop lands on a slow 70 bpm pulse, tendrils unfolding in macro detail. The camera slowly rotates around the tank. Add a faint iridescent shimmer at the edges of the ink. High contrast, saturated, no text. Sound: a deep sub-bass pulse on each drop with soft reverb tails.
