dsh-audio-visualizer

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System-audio driven UI visualizer for DeepSeek Harness (dsh web and DSH Desktop).

• Spectrum chip — a draggable 118×24 floating chip drawing a 48-band rainbow spectrum that rides the system audio output in real time.
• Frame glow — the window gets a bass-driven inset glow (10–56 px spread, hue shifts with the low end).
• Memory-only FFT — audio is analysed with a Web Audio AnalyserNode and never leaves the process: nothing is recorded, stored, or uploaded.
• Click the chip to toggle. It remembers where you put it.

How it works

getDisplayMedia({ audio }) → drop the placeholder video track → AnalyserNode (fftSize 512, smoothing 0.5) → log-spaced 48-band mapping over the FFT bins → dynamic peak gain → canvas.

On DSH Desktop the Electron main process answers getDisplayMedia with audio: 'loopback' for every renderer session, so the visualizer starts with the app — no dialog, no clicks. That requires a one-time local patch (see below).

Install

Available on npm: dsh-audio-visualizer (or from Git: git+https://github.com/caesarjue/dsh-audio-visualizer).

dsh web

dsh plugin --profile web add dsh-audio-visualizer

Then click the chip and pick Entire screen + check Share system audio in the picker. The browser security model requires this manual opt-in every time; macOS Chrome/Chromium 141+ only.

DSH Desktop

dsh plugin --profile desktop add dsh-audio-visualizer

Plus a one-time local patch — the DSH Desktop Electron main process must answer getDisplayMedia with system-audio loopback. The patch script is bundled in patch/:

./patch/install-patch.sh   # backs up the app, patches main.js, re-signs, guides the macOS permission

See patch/README.md for the details (and rollback). After the patch the visualizer starts with the app, zero interaction.

Requirements

• macOS 14.2+ (system-audio loopback via Core Audio taps); macOS permissions: Screen Recording + Audio Capture (grant in System Settings, then restart the app once)
• Chrome/Chromium 141+ for the web version
• DSH Desktop 2.0.5+ (Electron 43) tested; DSH web tested on dsh 0.1.5

Files

• package.json / cordis.patch.yml / lib/ — the plugin itself (dsh.bundle manifest declared)
• patch/ — the optional DSH Desktop main-process patch (script + patch file + README)

License

MIT