227 lines
9.5 KiB
Markdown
227 lines
9.5 KiB
Markdown
# SFX Library · huashu-design
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> 全部由 ElevenLabs Sound Generation API 生成，苹果发布会级音质。
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> 产品级 SFX 资产库，覆盖花叔动画/演示/产品 Demo 全场景。
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**资产位置**：`assets/sfx/<category>/<name>.mp3`
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**总数**：37 个 SFX（30 批量生成 + 7 个 v7b 保留）
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**生成模型**：ElevenLabs Sound Generation API（prompt_influence 0.4）
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**音质**：44.1kHz MP3，苹果发布会级清晰度，无额外混响
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---
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## 目录结构
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```
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assets/sfx/
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├── keyboard/ type, type-fast, delete-key, space-tap, enter
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├── ui/ click, click-soft, focus, hover-subtle, tap-finger, toggle-on
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├── transition/ whoosh, whoosh-fast, swipe-horizontal, slide-in, dissolve
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├── container/ card-snap, card-flip, stack-collapse, modal-open
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├── feedback/ success-chime, error-tone, notification-pop, achievement
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├── progress/ loading-tick, complete-done, generate-start
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├── impact/ logo-reveal, logo-reveal-v2, brand-stamp, drop-thud
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├── magic/ sparkle, ai-process, transform
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└── terminal/ command-execute, output-appear, cursor-blink
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```
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---
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## 快速索引
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### ⌨️ Keyboard（键盘输入）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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|---|---|---|---|
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| `sfx/keyboard/type.mp3` | 0.5s | 单键敲击（mechanical keyboard single key） | mechanical keyboard single key press |
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| `sfx/keyboard/type-fast.mp3` | 1.5s | 连续快速打字（演示输入提示词） | fast continuous typing rhythm, apple magic keyboard |
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| `sfx/keyboard/delete-key.mp3` | 0.5s | backspace 回删 | single backspace key, low pitched thud |
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| `sfx/keyboard/space-tap.mp3` | 0.5s | 空格键轻击 | soft spacebar tap, wide flat |
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| `sfx/keyboard/enter.mp3` | 0.5s | 回车确认（v7b 保留） | enter key press, crisp tactile |
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### 🎯 UI（界面交互）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/ui/click.mp3` | 0.5s | 标准 UI 点击（v7b 保留） | crisp modern interface click |
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| `sfx/ui/click-soft.mp3` | 0.5s | 柔和 UI click（次要按钮/链接） | soft gentle button click, mid pitched |
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| `sfx/ui/focus.mp3` | 0.5s | 元素聚焦/选中（v7b 保留） | subtle focus tone, element highlight |
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| `sfx/ui/hover-subtle.mp3` | 0.5s | 悬停提示（微秒级反馈） | barely audible tick, air whisper |
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| `sfx/ui/tap-finger.mp3` | 0.5s | 移动端 tap（iOS 界面） | finger tap on touchscreen, muted thud |
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| `sfx/ui/toggle-on.mp3` | 0.5s | 开关打开 | ios toggle switch flip, satisfying click |
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### 🌊 Transition（过渡）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/transition/whoosh.mp3` | 0.5s | 标准 whoosh（v7b 保留） | air whoosh transition |
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| `sfx/transition/whoosh-fast.mp3` | 0.6s | 快速 whoosh（标题闪入、标签切换） | quick fast air whoosh, cinematic |
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| `sfx/transition/swipe-horizontal.mp3` | 0.7s | 横向滑动（轮播、tab 切换） | smooth left-to-right air movement |
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| `sfx/transition/slide-in.mp3` | 0.6s | 元素滑入（side panel、抽屉） | smooth soft whoosh with arrival |
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| `sfx/transition/dissolve.mp3` | 0.8s | 柔化融化（图片淡出淡入） | soft dissolve, airy shimmer |
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### 🃏 Container（卡片/容器）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/container/card-snap.mp3` | 0.5s | 卡片吸附/定位（v7b 保留） | card snap into place |
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| `sfx/container/card-flip.mp3` | 0.7s | 卡片翻转（前后面切换） | playing card flip, crisp snap |
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| `sfx/container/stack-collapse.mp3` | 0.8s | 堆叠合拢（列表聚合） | cards stacking, paper taps collapsing |
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| `sfx/container/modal-open.mp3` | 0.6s | 模态框打开 | modal popping open, whoosh + thud |
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### 🔔 Feedback（通知/反馈）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/feedback/success-chime.mp3` | 1.0s | 成功提示（支付成功、任务完成） | two ascending bell tones, ios-style |
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| `sfx/feedback/error-tone.mp3` | 0.7s | 错误提示（警告、失败） | descending two-note warning, soft |
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| `sfx/feedback/notification-pop.mp3` | 0.6s | 消息弹出（toast、通知） | notification bloop, ios message alert |
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| `sfx/feedback/achievement.mp3` | 1.5s | 成就达成（里程碑、徽章） | triumphant rising arpeggio, game-style |
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### ⏳ Progress（进度/状态）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/progress/loading-tick.mp3` | 0.5s | 加载计时（进度条节拍） | soft short pulse, minimal ambient |
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| `sfx/progress/complete-done.mp3` | 0.8s | 完成确认（step 完成） | two ascending satisfying tones |
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| `sfx/progress/generate-start.mp3` | 0.8s | AI 开始生成 | soft rising shimmer, magical whoosh |
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### 💥 Impact（品牌/冲击）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/impact/logo-reveal.mp3` | 0.7s | Logo impact（v7b 保留） | logo reveal thud |
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| `sfx/impact/logo-reveal-v2.mp3` | 1.5s | 更长的 Logo impact（电影感） | cinematic bass hit with shimmer tail |
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| `sfx/impact/brand-stamp.mp3` | 1.0s | 印章重击（认证、盖章） | rubber stamp thud, paper contact |
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| `sfx/impact/drop-thud.mp3` | 0.7s | 物件落地（插入、放置） | heavy thud, wood surface contact |
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### ✨ Magic（AI 变换）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/magic/sparkle.mp3` | 0.8s | 魔法闪光（AI 高亮、惊喜） | bright twinkling stars, fairy dust |
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| `sfx/magic/ai-process.mp3` | 1.2s | AI 处理音（thinking 状态） | modulating digital hum with shimmer |
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| `sfx/magic/transform.mp3` | 1.0s | 变换过渡（morph 效果） | rising shimmer whoosh with sparkle tail |
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### 💻 Terminal（命令行）
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| 文件 | 时长 | 用途 | Prompt 要点 |
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| `sfx/terminal/command-execute.mp3` | 0.5s | 命令执行 | crisp digital beep with tick, hacker ui |
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| `sfx/terminal/output-appear.mp3` | 0.6s | 输出出现 | rapid digital ticks, retro printout |
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| `sfx/terminal/cursor-blink.mp3` | 0.5s | 光标闪烁 | subtle soft digital pulse, rhythmic |
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---
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## 按场景推荐搭配
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### 💻 Terminal 交互演示
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```
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type (0.5s) → enter (0.5s) → command-execute (0.5s) → output-appear (0.6s)
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```
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循环元素：`cursor-blink` 作为 idle 时的环境音。
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### 🃏 卡片选择流程
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```
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hover-subtle (0.5s, UI悬停) → click-soft (0.5s, 点击) → card-snap (0.5s, 定位)
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```
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或进阶版：`card-flip` 做前后面切换。
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### 🤖 AI 生成全流程
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```
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generate-start (0.8s, 启动) → ai-process (1.2s, 处理) → sparkle (0.8s, 闪现) → complete-done (0.8s, 完成)
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```
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错误时用 `error-tone` 替代 `complete-done`。
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### 🎬 Logo Reveal（品牌时刻）
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```
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whoosh-fast (0.6s, 铺垫) → logo-reveal-v2 (1.5s, 落点) → sparkle (0.8s, 尾韵)
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```
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简版：`whoosh → logo-reveal`（直接 v7b 两件套）。
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### 📱 UI 交互演示（移动端）
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```
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tap-finger (0.5s, 点击) → slide-in (0.6s, 面板滑入) → toggle-on (0.5s, 开关)
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```
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完成后：`success-chime` 或 `notification-pop`。
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### 📊 数据可视化/仪表盘
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```
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loading-tick (0.5s, 节拍) × N → complete-done (0.8s, 数据到位) → achievement (1.5s, 惊艳落点)
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```
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### 🎯 表单提交流程
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```
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click-soft (0.5s) → loading-tick ×2 (1.0s) → success-chime (1.0s)
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```
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失败分支：`error-tone (0.7s)`。
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### 🪄 Magic Transform 场景
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```
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whoosh-fast (0.6s) → transform (1.0s) → sparkle (0.8s)
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```
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适合：元素变形、效果前后对比、"AI 重写"等演示。
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---
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## 使用规范
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### 音量建议（来自 apple-gallery-showcase.md 音频双轨制）
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- **SFX 主轨**：`1.0`（不做衰减）
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- **BGM 背景轨**：`0.4 ~ 0.5`（SFX 明显穿透）
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- **多 SFX 叠加**：用 `amix=inputs=N:duration=longest:normalize=0` 保留动态范围
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### ffmpeg 拼接模板
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```bash
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# 单 SFX 对齐时间点：
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ffmpeg -i video.mp4 -itsoffset 2.5 -i sfx/ui/click.mp3 \
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-filter_complex "[0:a][1:a]amix=inputs=2:duration=longest:normalize=0[a]" \
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-map 0:v -map "[a]" output.mp4
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# 多 SFX + BGM：
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ffmpeg -i video.mp4 \
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-itsoffset 1.0 -i sfx/transition/whoosh-fast.mp3 \
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-itsoffset 1.6 -i sfx/impact/logo-reveal-v2.mp3 \
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-i bgm.mp3 \
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-filter_complex "[3:a]volume=0.4[bgm];[0:a][1:a][2:a][bgm]amix=inputs=4:normalize=0[a]" \
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-map 0:v -map "[a]" output.mp4
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```
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### 选型决策树
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1. **有 tactile 动作**（打字/点击/滑动）→ `keyboard/` or `ui/`
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2. **元素进场/出场** → `transition/`
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3. **容器层操作**（卡片/模态） → `container/`
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4. **状态反馈**（成功/失败/通知） → `feedback/`
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5. **进度/时间流逝** → `progress/`
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6. **品牌落点/重要时刻** → `impact/`
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7. **AI 魔法/变换** → `magic/`
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8. **命令行/代码演示** → `terminal/`
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### 避免叠音堆积
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- 同一个时间点 `max 2 个 SFX` 并发
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- BGM 降到 0.3 以下时可以放 3 个
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- 品牌 impact 时清空其他 SFX（留空 0.2s 再落点）
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---
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## Prompt 撰写原则（供复用）
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参考风格：`apple keynote, tight, minimal, no reverb unless ambient, crisp, elegant`
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**好 prompt 的三要素**：
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1. **声音物理描述**：什么物体、什么动作（"mechanical keyboard single key press"）
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2. **质感/风格限定**：apple-style / ios-style / cinematic / retro
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3. **反例排除**：no reverb / clean studio / minimal
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❌ "click sound"
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✅ "crisp ui button click, clean modern interface sound, apple-style, high pitched"
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❌ "magic"
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✅ "bright twinkling stars sound, high pitched glittery chime, fairy dust"
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---
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## 详见
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- 音频双轨制与 ffmpeg 拼接：`apple-gallery-showcase.md`
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- 原始生成脚本：`/tmp/gen_sfx_batch.sh`（一次性批量生成器）
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