Kling 4.0 文生视频：核心参数与适用场景图解
以一条 21:9 超宽画幅的品牌短片，演示 Kling 4.0 文生视频线路的核心参数如何落到实际画面：prompt 负责主体、动作、运镜、光线与情绪，duration 控制单次生成时长（本作取 10 秒），resolution 选择 1080p 以获得更清晰的细节，aspect_ratio 取 21:9 得到电影感横幅构图。该线路在生成画面的同时一并产出音频，因此提示词里需要写清环境声与氛围，而不是只描述视觉。适用场景包括品牌营销短片、社交媒体系列内容、分镜预演与叙事短片的前期概念验证；若需要更快迭代草稿，可先以较低分辨率与较短时长试跑，再升到 1080p 定稿。
风格 电影感 · product-launch · Text-to-Video
模型 Kling 4.0
提示词
Cinematic 21:9 ultrawide shot inside a glass-walled design studio at dusk. A young industrial designer lifts a matte-black wireless speaker from its foam packaging, turns it slowly in her hands, and sets it on a concrete table; soft window light rakes across the brushed metal grille. The camera begins in a slow lateral dolly at table height, then arcs gently to a low three-quarter angle as the speaker's ring light fades up, revealing a faint cyan glow. Shallow depth of field, warm practical lamps bokeh in the background, cool blue city skyline reflected in glass. Subtle handheld micro-motion, steady slow push-in at the end. Audio: quiet room tone, faint city hum through the glass, the soft click of the speaker seating on the table, and a low warm ambient synth pad rising gently under the final beat.
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