---

name: sherpa-onnx-tts description: "Local text-to-speech via sherpa-onnx (offline, no cloud)" metadata: { "openclaw": { "emoji": "🔉", "os": ["darwin", "linux", "win32"], "requires": { "env": ["SHERPA_ONNX_RUNTIME_DIR", "SHERPA_ONNX_MODEL_DIR"] }, "install": [ { "id": "download-runtime-macos", "kind": "download", "os": ["darwin"], "url": "https://github.com/k2-fsa/sherpa-onnx/releases/download/v1.13.6/sherpa-onnx-v1.13.6-osx-universal2-shared.tar.bz2", "sha256": "05ed5839bbdfb2da36bb9095961e6b4cfa470d55e29a9795100627dbc36df2ba", "archive": "tar.bz2", "extract": true, "stripComponents": 1, "targetDir": "runtime", "label": "Download sherpa-onnx runtime (macOS)", }, { "id": "download-runtime-linux-x64", "kind": "download", "os": ["linux"], "url": "https://github.com/k2-fsa/sherpa-onnx/releases/download/v1.13.6/sherpa-onnx-v1.13.6-linux-x64-shared.tar.bz2", "sha256": "58cc7d360fdedf9702954e8b585eb400bbee8668484bf25e4461d5d22ba439d8", "archive": "tar.bz2", "extract": true, "stripComponents": 1, "targetDir": "runtime", "label": "Download sherpa-onnx runtime (Linux x64)", }, { "id": "download-runtime-win-x64", "kind": "download", "os": ["win32"], "url": "https://github.com/k2-fsa/sherpa-onnx/releases/download/v1.13.6/sherpa-onnx-v1.13.6-win-x64-shared-MD-Release.tar.bz2", "sha256": "27efaed17a64a40fd3059ac24195dcf4ec0521c999906d288cc5107cbbf4cedc", "archive": "tar.bz2", "extract": true, "stripComponents": 1, "targetDir": "runtime", "label": "Download sherpa-onnx runtime (Windows x64)", }, { "id": "download-model-lessac", "kind": "download", "url": "https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-lessac-high.tar.bz2", "archive": "tar.bz2", "extract": true, "targetDir": "models", "label": "Download Piper en_US lessac (high)", }, ], }, }

sherpa-onnx-tts

Local TTS using the sherpa-onnx offline CLI.

Install

1. Download the runtime for your OS (extracts into $OPENCLAW_STATE_DIR/tools/sherpa-onnx-tts/runtime, default ~/.openclaw/tools/sherpa-onnx-tts/runtime)
2. Download a voice model (extracts into $OPENCLAW_STATE_DIR/tools/sherpa-onnx-tts/models, default ~/.openclaw/tools/sherpa-onnx-tts/models)

Resolve the active state directory first:

STATE_DIR="${OPENCLAW_STATE_DIR:-$HOME/.openclaw}"

Then write those resolved paths into the active OpenClaw config file ($OPENCLAW_CONFIG_PATH, default ~/.openclaw/openclaw.json):

{
  skills: {
    entries: {
      "sherpa-onnx-tts": {
        env: {
          SHERPA_ONNX_RUNTIME_DIR: "/path/to/your/state-dir/tools/sherpa-onnx-tts/runtime",
          SHERPA_ONNX_MODEL_DIR: "/path/to/your/state-dir/tools/sherpa-onnx-tts/models/vits-piper-en_US-lessac-high",
        },
      },
    },
  },
}

The wrapper lives in this skill folder. Run it directly, or add the wrapper to PATH:

export PATH="{baseDir}/bin:$PATH"

Usage

{baseDir}/bin/sherpa-onnx-tts -o ./tts.wav "Hello from local TTS."

Notes:

• Pick a different model from the sherpa-onnx tts-models release if you want another voice.
• If the model dir has multiple .onnx files, set SHERPA_ONNX_MODEL_FILE or pass --model-file.
• You can also pass --tokens-file or --data-dir to override the defaults.
• Windows: run node {baseDir}\\bin\\sherpa-onnx-tts -o tts.wav "Hello from local TTS."