Convert text into speech locally with sherpa-onnx and save it as a WAV audio file. After installing the runtime and a voice model, generate audio offline without using a cloud service.
Local text-to-speech via sherpa-onnx (offline, no cloud)
sherpa-onnx-tts turns text into spoken audio on your computer and saves the result as a WAV file. It uses the sherpa-onnx offline command-line tool to generate speech. Once the runtime and a voice model are installed, you can create audio without using a cloud service. To use a different voice, choose another model from the tts-models release.
Use it when you want to turn a short passage into an audio file or generate spoken audio without connecting to the cloud. You specify where to save the output, so the resulting WAV file stays available on your computer.
tts.wav.”It supports macOS, Linux, and Windows. Download the runtime for your operating system and a voice model, then set SHERPA_ONNX_RUNTIME_DIR and SHERPA_ONNX_MODEL_DIR. The setup example uses the English model vits-piper-en_US-lessac-high. If the model contains multiple .onnx files, specify which file to use. On Windows, run the tool through node.
This overview was written by AI (OpenAI Codex) from the public SKILL.md. Check the original below for the exact behavior.
AI rated this skill on four points using only the contents of its SKILL.md. Stars and popularity are not taken into account.
The total counts each point as A = 25, B = 15, C = 5. Rated by AI (OpenAI Codex) as of Oct 19, 2026. Treat it as a guide and read the original before installing.
Review the instructions the agent will receive before you install.
Local TTS using the sherpa-onnx offline CLI.
$OPENCLAW_STATE_DIR/tools/sherpa-onnx-tts/runtime, default ~/.openclaw/tools/sherpa-onnx-tts/runtime)$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"
{baseDir}/bin/sherpa-onnx-tts -o ./tts.wav "Hello from local TTS."
Notes:
tts-models release if you want another voice..onnx files, set SHERPA_ONNX_MODEL_FILE or pass --model-file.--tokens-file or --data-dir to override the defaults.node {baseDir}\\bin\\sherpa-onnx-tts -o tts.wav "Hello from local TTS."No reviews yet. Tell others what you thought.
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