name: sherpa-onnx-tts description: Local text-to-speech via sherpa-onnx (offline, no cloud) metadata: { "hex": { "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/v1.12.23/sherpa-onnx-v1.12.23-osx-universal2-shared.tar.bz2", "archive": "tar.bz2", "extract": true, "stripComponents": 1, "targetDir": "/.hex/tools/sherpa-onnx-tts/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/v1.12.23/sherpa-onnx-v1.12.23-linux-x64-shared.tar.bz2", "archive": "tar.bz2", "extract": true, "stripComponents": 1, "targetDir": "/.hex/tools/sherpa-onnx-tts/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/v1.12.23/sherpa-onnx-v1.12.23-win-x64-shared.tar.bz2", "archive": "tar.bz2", "extract": true, "stripComponents": 1, "targetDir": "/.hex/tools/sherpa-onnx-tts/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": "/.hex/tools/sherpa-onnx-tts/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 ~/.hex/tools/sherpa-onnx-tts/runtime)
2. Download a voice model (extracts into ~/.hex/tools/sherpa-onnx-tts/models)

Update ~/.hex/hex.json:

{
  skills: {
    entries: {
      "sherpa-onnx-tts": {
        env: {
          SHERPA_ONNX_RUNTIME_DIR: "~/.hex/tools/sherpa-onnx-tts/runtime",
          SHERPA_ONNX_MODEL_DIR: "~/.hex/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."