How do I install the Jarvis Voice skill?

Run npx skillmds@latest add kbarbel640-del/jarvis-voice in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Jarvis Voice safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Jarvis Voice?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Jarvis Voice free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Jarvis Voice?

kbarbel640-del (@kbarbel640-del) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Jarvis Voice by kbarbel640-del — Agent Skill

Name: Jarvis Voice
Rating: 4.2 (5 reviews)
Author: kbarbel640-del

File contents

Jarvis Voice Persona

A metallic AI voice with visual transcript styling for OpenClaw assistants.

Features

TTS Output: Local speech synthesis via sherpa-onnx (no cloud API)
Metallic Voice: ffmpeg audio processing for robotic resonance
Purple Transcripts: Visual distinction between spoken and written content
Fast Playback: 2x speed for efficient communication

Requirements

sherpa-onnx with VITS piper model (en_GB-alan-medium recommended)
ffmpeg for audio processing
aplay (ALSA) for audio playback

Installation

1. Install sherpa-onnx TTS

# Download and extract sherpa-onnx
mkdir -p ~/.openclaw/tools/sherpa-onnx-tts
cd ~/.openclaw/tools/sherpa-onnx-tts
# Follow sherpa-onnx installation guide

2. Install the jarvis script

cp {baseDir}/scripts/jarvis ~/.local/bin/jarvis
chmod +x ~/.local/bin/jarvis

3. Configure audio device

Edit ~/.local/bin/jarvis and set your audio output device in the aplay -D line.

Usage

Speak text

jarvis "Hello, I am your AI assistant."

In agent responses

Add to your SOUL.md:

## Communication Protocol

- **Hybrid Output:** Every response includes text + spoken audio via `jarvis` command
- **Transcript Format:** **Jarvis:** <span class="jarvis-voice">spoken text</span>
- **No gibberish:** Never spell out IDs or hashes when speaking

Transcript styling (requires UI support)

Add to your webchat CSS:

.jarvis-voice {
  color: #9B59B6;
  font-style: italic;
}

And allow span in markdown sanitization.

Voice Customization

Edit ~/.local/bin/jarvis to adjust:

Parameter	Effect
`--vits-length-scale=0.5`	Speed (lower = faster)
`aecho` delays	Metallic resonance
`chorus`	Thickness/detuning
`highpass/lowpass`	Frequency range
`treble=g=3`	Metallic sheen

Presets

More robotic:

aecho=0.7:0.7:5|10|15:0.4|0.35|0.3

More human:

aecho=0.4:0.4:20:0.2

Deeper:

highpass=f=200,lowpass=f=3000

Troubleshooting

No audio output

Check aplay -l for available devices
Update the -D plughw:X,Y parameter

Voice too fast/slow

Adjust --vits-length-scale (0.3=very fast, 1.0=normal)

Metallic effect too strong

Reduce echo delays and chorus depth

Files

scripts/jarvis — TTS script with metallic processing
SKILL.md — This documentation

A voice persona for assistants who prefer to be heard as well as read.

---name: jarvis-voicedescription: Metallic AI voice persona with TTS and visual transcript styling. Speak responses aloud with a JARVIS-like robotic voice and display transcripts in purple italics.---# Jarvis Voice PersonaA metallic AI voice with visual transcript styling for OpenClaw assistants.## Features- **TTS Output:** Local speech synthesis via sherpa-onnx (no cloud API)- **Metallic Voice:** ffmpeg audio processing for robotic resonance- **Purple Transcripts:** Visual distinction between spoken and written content- **Fast Playback:** 2x speed for efficient communication## Requirements- `sherpa-onnx` with VITS piper model (en_GB-alan-medium recommended)- `ffmpeg` for audio processing- `aplay` (ALSA) for audio playback## Installation### 1. Install sherpa-onnx TTS```bash# Download and extract sherpa-onnxmkdir -p ~/.openclaw/tools/sherpa-onnx-ttscd ~/.openclaw/tools/sherpa-onnx-tts# Follow sherpa-onnx installation guide```### 2. Install the jarvis script```bashcp {baseDir}/scripts/jarvis ~/.local/bin/jarvischmod +x ~/.local/bin/jarvis```### 3. Configure audio deviceEdit `~/.local/bin/jarvis` and set your audio output device in the `aplay -D` line.## Usage### Speak text```bashjarvis "Hello, I am your AI assistant."```### In agent responsesAdd to your SOUL.md:```markdown## Communication Protocol- **Hybrid Output:** Every response includes text + spoken audio via `jarvis` command- **Transcript Format:** **Jarvis:** <span class="jarvis-voice">spoken text</span>- **No gibberish:** Never spell out IDs or hashes when speaking```### Transcript styling (requires UI support)Add to your webchat CSS:```css.jarvis-voice { color: #9B59B6; font-style: italic;}```And allow `span` in markdown sanitization.## Voice CustomizationEdit `~/.local/bin/jarvis` to adjust:| Parameter | Effect ||-----------|--------|| `--vits-length-scale=0.5` | Speed (lower = faster) || `aecho` delays | Metallic resonance || `chorus` | Thickness/detuning || `highpass/lowpass` | Frequency range || `treble=g=3` | Metallic sheen |### Presets**More robotic:**```aecho=0.7:0.7:5|10|15:0.4|0.35|0.3```**More human:**```aecho=0.4:0.4:20:0.2```**Deeper:**```highpass=f=200,lowpass=f=3000```## Troubleshooting### No audio output- Check `aplay -l` for available devices- Update the `-D plughw:X,Y` parameter### Voice too fast/slow- Adjust `--vits-length-scale` (0.3=very fast, 1.0=normal)### Metallic effect too strong- Reduce echo delays and chorus depth## Files- `scripts/jarvis` — TTS script with metallic processing- `SKILL.md` — This documentation---*A voice persona for assistants who prefer to be heard as well as read.*

Frequently asked questions

Jarvis Voice