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Audio Rail — DSH Plugin for DeepSeek Harness
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@local/dsh-audio-rail

Audio Rail

DSH Web GUI session right-side quick-jump anchors (turn rail) move with the music: host-side WASAPI loopback capture + FFT frequency bands pushed via SSE, driving the anchor bars to expand and contract in the browser, like spectrum bars rotated 90°.

The plugin will be installed here. Keep web if you are unsure.

npx -y @deepseek-ai/dsh plugin --profile web add github:Lingwuxin/dsh-audio-rail#80586e2bafbe636d2ea7456d351fc9f622a89fdb
READMECompatibilityVersions
效果演示:右侧锚点随音乐律动

Compatibility and provenance

Audio Rail is published as @local/dsh-audio-rail and currently resolves to version 1.0.0. The Hub verifies its manifest and preserves the exact installation source for reproducible installs.

DSH compatibility
*
Runtime surfaces
web
Release source
github
Registry updated
9/18/2026

Versions

1.0.0stable
9/18/2026

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1.0.0
DSH
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Tree shaking
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Unpacked size
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Files
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Surface
web
License
MIT
Source
github
GitHub
★ 0
Weekly downloads
0
Last push
9/18/2026
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README

dsh-audio-rail

中文 | English

让 DSH Web GUI 会话页面右侧的「快捷跳转锚点」(turn rail)随系统正在播放的音乐律动——像把频谱可视化的柱形旋转了 90°。

效果演示

效果演示:右侧锚点随音乐律动

GitHub 会剥离手写 <video> 标签,所以用 GIF 内联自动循环播放;有声完整版见 demo1.mp4。

原理

┌─ bin/AudioRailCapture.exe ─┐   stdout JSON    ┌─ index.js (host) ─┐   SSE    ┌─ client.js (browser) ─┐
│ WASAPI 环回采集默认渲染端点 │ ───────────────▶ │ /audio-rail/events │ ───────▶ │ 每个锚点绑定一个频段, │
│ FFT → 12 个对数频段 @30fps │                  │ /audio-rail/status │          │ scaleX 伸缩 ::before  │
└────────────────────────────┘                  └────────────────────┘          └────────────────────────┘
  • 采集:src/AudioRailCapture.cs(csc.exe 编译,零依赖单文件)以环回模式捕获默认渲染端点的系统混音(WASAPI shared mode + AUDCLNT_STREAMFLAGS_LOOPBACK),FFT 后归约为 12 个对数分布频段(45 Hz–16 kHz)。归一化采用「约 1 秒滑窗均值」为基准的相对动态映射(-9/+17 dB 窗口):持续内容停在中线、鼓点瞬态上冲、弱奏回落,不会像峰值跟踪那样一直顶格。约 30 fps 输出 JSON 行,静默时输出衰减到 0。
  • 宿主:index.js 注册 /audio-rail/events(SSE)与 /audio-rail/status。有订阅者才启动采集进程,最后一个订阅者断开 15 秒后停止;崩溃按指数退避重启(设备热插拔 exit 3 可恢复)。
  • 浏览器:client.js 注入一条 CSS 规则,把锚点短条(.…_mark::before)的 transform 变为 translateY(-50%) scaleX(var(--dsh-audio-rail-scale, 1));EventSource 接收频段帧,rAF 循环内对每个锚点做攻击/释放平滑后写入 CSS 变量。低音在底部锚点。尊重 prefers-reduced-motion(此时完全不启用)。不影响锚点原有的 active/preview/busy 状态样式(宽度与颜色照旧,只是叠加缩放)。

安装

克隆后先编译采集器(build.cmd 调用 Windows 自带的 .NET Framework csc.exe,无需安装任何依赖):

build.cmd

然后在 DeepSeek Harness 会话里让 agent 安装 bundle,或手动:

dsh plugin --profile web add link:<本仓库克隆路径>

安装后浏览器页面自动热加载,无需刷新。

备注

  • 本机(部分 Windows 版本/运行时组合)IMMDevice::Activate 对 IID_IAudioClient 返回 E_NOINTERFACE,因此 helper 按 IAudioClient3 → IAudioClient2 → IAudioClient1 顺序探测,并且设备以下的 COM 调用全部走原始 vtable 委托(避开该运行时对 Activate 封送抛 InvalidCastException 的问题)。
  • 高采样率设备(如 192 kHz)会自动放大 FFT 点数,保证低频段分辨率。
  • 卸载/禁用插件后,SSE 断开,采集进程随之退出,不产生常驻开销。
  • 仅支持 Windows(WASAPI 是 Windows 音频栈)。

文件

文件作用
index.jsHost 半面:路由 + 采集进程生命周期
client.js浏览器半面:样式注入 + SSE + rAF 动画
src/AudioRailCapture.csWASAPI 环回采集 + FFT(C#5,csc.exe 可编译)
build.cmd采集器一键编译脚本(调用系统自带 csc.exe)
bin/AudioRailCapture.exe采集器编译产物(不随仓库分发,由 build.cmd 生成,.gitignore 忽略)
docs/demo1.gif效果演示(README 内联播放)
docs/demo1.mp4效果演示完整视频
cordis.patch.ymlbundle 补丁,插入 ui-dsh-audio-rail 行

许可

MIT