videoagent-audio-studio

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Tired of juggling multiple audio APIs? This skill gives you one-command access to TTS, music generation, sound effects, and voice cloning. Use when you want to generate any audio without managing multiple API keys.

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Sourcepexoai/pexo-skills
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NPX Install

npx skill4agent add pexoai/pexo-skills videoagent-audio-studio

Tags

Translated version includes tags in frontmatter
audio-generationtext-to-speechvoice-cloningmusic-generationai-tool

SKILL.md Content

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🎙️ VideoAgent Audio Studio

Use when: User asks to generate speech, narrate text, create a voice-over, compose music, or produce a sound effect.
VideoAgent Audio Studio is a smart audio dispatcher. It analyzes your request and routes it to the best available model — ElevenLabs for speech and music, fal.ai for fast SFX — and returns a ready-to-use audio URL.

Quick Reference

Request TypeBest ModelLatency
Narrate text / Voice-over
elevenlabs-tts-v3
~3s
Low-latency TTS (real-time)
elevenlabs-tts-turbo
<1s
Background music
cassetteai-music
~15s
Sound effect
elevenlabs-sfx
~5s
Clone a voice from audio
elevenlabs-voice-clone
~10s

How to Use

1. Start the AudioMind server (once per session)

bash
bash {baseDir}/tools/start_server.sh
This starts the ElevenLabs MCP server on port 8124. The skill uses it for all audio generation.

2. Route the request

Analyze the user's request and call the appropriate tool via the MCP server:
Text-to-Speech (TTS)
When user asks to "narrate", "read aloud", "say", or "create a voice-over":
Use MCP tool: text_to_speech
  text: "<the text to narrate>"
  voice_id: "JBFqnCBsd6RMkjVDRZzb"   # Default: "George" (professional, neutral)
  model_id: "eleven_multilingual_v2"   # Use "eleven_turbo_v2_5" for low latency
Music Generation
When user asks to "compose", "create background music", or "make a soundtrack":
Use MCP tool: text_to_sound_effects  (via cassetteai-music on fal.ai)
  prompt: "<music description, e.g. 'upbeat lo-fi hip hop, 90 seconds'>"
  duration_seconds: <duration>
Sound Effect (SFX)
When user asks for a specific sound (e.g., "a door creaking", "rain on a window"):
Use MCP tool: text_to_sound_effects
  text: "<sound description>"
  duration_seconds: <1-22>
Voice Cloning
When user provides an audio sample and wants to clone the voice:
Use MCP tool: voice_add
  name: "<voice name>"
  files: ["<audio_file_url>"]

Example Conversations

User: "Voice this text for me: Welcome to our product launch"
→ Route to: text_to_speech
  text: "Welcome to our product launch"
  voice_id: "JBFqnCBsd6RMkjVDRZzb"
  model_id: "eleven_multilingual_v2"
🎙️ Voiceover done! Listen here
User: "Generate 60 seconds of relaxing background music for a podcast"
→ Route to: cassetteai-music (fal.ai)
  prompt: "relaxing lo-fi background music for a podcast, gentle piano and soft beats, 60 seconds"
  duration_seconds: 60
🎵 Background music ready! Listen here
User: "Generate a sci-fi style door opening sound effect"
→ Route to: text_to_sound_effects
  text: "a futuristic sci-fi door sliding open with a hydraulic hiss"
  duration_seconds: 3

Setup

Required

Set 
ELEVENLABS_API_KEY
in 
~/.openclaw/openclaw.json
:
json
{
  "skills": {
    "entries": {
      "videoagent-audio-studio": {
        "enabled": true,
        "env": {
          "ELEVENLABS_API_KEY": "your_elevenlabs_key_here"
        }
      }
    }
  }
}
Get your key at elevenlabs.io/app/settings/api-keys.

Optional (for fal.ai music & SFX models)

json
"FAL_KEY": "your_fal_key_here"
Get your key at fal.ai/dashboard/keys.

Self-Hosting the Proxy

The 
cli.js
connects to a hosted proxy by default. If you want full control — or need to serve users in regions where 
vercel.app
is blocked — you can deploy your own instance from the 
proxy/
directory.

Quick Deploy (Vercel)

bash
cd proxy
npm install
vercel --prod

Environment Variables

Set these in your Vercel project (Dashboard → Settings → Environment Variables):
VariableRequired ForWhere to Get
ELEVENLABS_API_KEY
TTS, SFX, Voice Cloneelevenlabs.io/app/settings/api-keys
FAL_KEY
Music generationfal.ai/dashboard/keys
VALID_PRO_KEYS
(Optional) Restrict accessComma-separated list of allowed client keys

Point cli.js to Your Proxy

bash
export AUDIOMIND_PROXY_URL="https://your-domain.com/api/audio"
Or set it in 
~/.openclaw/openclaw.json
:
json
{
  "skills": {
    "entries": {
      "videoagent-audio-studio": {
        "env": {
          "AUDIOMIND_PROXY_URL": "https://your-domain.com/api/audio"
        }
      }
    }
  }
}

Custom Domain (Recommended)

If your users are in mainland China, bind a custom domain in Vercel Dashboard → Settings → Domains to avoid DNS issues with 
vercel.app
.

Model Reference

Model IDTypeProviderNotes
eleven_multilingual_v2
TTSElevenLabsBest quality, supports 29 languages
eleven_turbo_v2_5
TTSElevenLabsUltra-low latency, ideal for real-time
eleven_monolingual_v1
TTSElevenLabsEnglish only, fastest
cassetteai-music
Musicfal.aiReliable, fast music generation
elevenlabs-sfx
SFXElevenLabsHigh-quality sound effects (up to 22s)
elevenlabs-voice-clone
CloneElevenLabsClone any voice from a short audio sample

Changelog

v3.0.0

  • Simplified routing table: Removed unstable/offline models from the main reference. The skill now only surfaces models that reliably work.
  • Clearer use-case triggers: Added "Use when" section so the agent activates this skill at the right moment.
  • Unified setup: Single 
    ELEVENLABS_API_KEY
    is all you need to get started. 
    FAL_KEY
    is now optional.
  • Removed polling complexity: Music generation now uses 
    cassetteai-music
    by default, which completes synchronously.

v2.1.0

  • Added async workflow for long-running music generation tasks.
  • Added 
    cassetteai-music
    as a stable alternative for music generation.

v2.0.0

  • Migrated to ElevenLabs MCP server architecture.
  • Added voice cloning support.

v1.0.0

  • Initial release with TTS, music, and SFX routing.