Status: v0.4.0, published on npm — pnpm typecheck passes, 239 unit tests pass, pnpm build emits the ecosystem-standard closure-factory bundle (host half + browser half). Verified inside a real DSH Desktop profile. Install: dsh plugin add dsh-voice-kit.

Features

🎤 Voice input — mic button in the composer's left rail; records and transcribes host-side, appending the text to the draft (never clobbering what you already typed). Two backends: the browser Web Speech API (Chrome/Edge) or a host-side OpenAI-compatible service (e.g. SiliconFlow SenseVoice). Esc cancels; stop anytime.
🔊 Read aloud (three engines) — a per-message button at each assistant message tail:
- Microsoft neural voices (free; 晓晓/云希/云健/云扬…), synthesized host-side via msedge-tts and cached; connects through the system proxy tunnel automatically on censored networks.
- Cloud neural voices (SiliconFlow CosyVoice2 and any OpenAI-compatible audio/speech; direct from mainland China, no proxy needed) — reuses the same credential you already set up for speech recognition.
- System voices — fully offline fallback; works everywhere.
- Markdown and emoji are stripped before speaking; long replies are streamed in sentence-boundary chunks — the first chunk speaks within ~1s and later chunks download while it plays; only one voice at a time; the playing message is scrolled into view with an on-screen bubble showing what is being read; click again to stop instantly.
⚙️ Settings — a first-level section: voice engine (three choices), one-tap cloud preset, voice, rate, pitch, recognition language, an engine reachability probe (see at a glance whether Edge is reachable), and key status (shows only "saved / not set", never the value).

Quick Start (5 minutes)

1. Install

# from npm (recommended)
dsh plugin add dsh-voice-kit

# or from a local checkout
dsh plugin --profile desktop add link:/path/to/dsh-voice-kit

Restart DSH Desktop and refresh the web GUI.

2. Hear read-aloud (pick an engine)

Open Settings → Voice → Read aloud:

Works instantly — "System voice" → press 🔊 and you hear audio (offline; dated quality).
Free and natural — "Microsoft neural". The page shows "❌ Edge unreachable / ✅ Edge reachable". If unreachable, turn on your proxy (the plugin routes through the system proxy automatically) and press 🔊.
No proxy, close to Doubao quality — "Cloud neural" → tap the "SiliconFlow CosyVoice2" preset → if you already configured a speech recognition key, just press "Play test"; otherwise enter the key once (TTS reuses the same one).

💡 Cloud TTS and recognition share one credential: configure voice input first and read-aloud needs nothing more.

3. Speak with voice input

Open the 🎤 in the composer:

If it says "configure a recognition service", go to Settings → Voice → Voice input, choose "host-side transcription", and enter the SiliconFlow base URL + key.
Press 🎤 to talk, press again (or Esc) to stop; the transcript is appended to the draft.
Use "Microphone self-check" first to confirm permission / device / format.

4. Troubleshooting

Problem	Fix
No audio	Check the engine is reachable; Microsoft needs a proxy, cloud needs a key, system always works
Long text starts slowly	Optimized to ~1s to first audio; update to 0.4.0 if slower
Key shows "saved" but no effect	Key lives host-side; restart and press "Play test" again
No transcript on voice input	Confirm host-side recognition is configured

Install

# from npm (after publish)
dsh plugin add dsh-voice-kit

# or from a local checkout (development)
dsh plugin --profile desktop add link:/path/to/dsh-voice-kit

Restart the harness, refresh the web GUI.

Development

pnpm install
pnpm typecheck   # tsc --noEmit
pnpm test        # vitest (markdown stripping / chunking / concurrent prefetch)
pnpm build       # tsdown → lib/index.js (host) + lib/client.js (browser)

Build pipeline is the ecosystem-standard closure-factory bundle (window.__ModuleLoader__.load) driven by shared/tsdown.client.ts (adapted from the official DeepSeek Harness packages/client/tsdown.client.ts, MIT; libExternal option from the dsh-web-ui family bucket, Apache-2.0).

License

MIT. The bundled shared/tsdown.client.ts adapts official DSH build tooling (MIT) plus the dsh-web-ui libExternal option (Apache-2.0); see the file header.