voice-ai-tts

Voice.ai Voices

✨ Features

• 9 Voice Personas - Carefully curated voices for different use cases
• 11 Languages - Multi-language synthesis with multilingual model
• Streaming Mode - Real-time audio output as it generates
• Voice Cloning - Clone voices from audio samples
• Voice Design - Customize with temperature and top_p parameters
• OpenClaw Integration - Works with OpenClaw's built-in TTS

---

⚙️ Configuration

The scripts look for your API key in this order:

1. VOICE_AI_API_KEY environment variable
2. OpenClaw config (~/.openclaw/openclaw.json)
3. Skill-local .env file

Get your API key: Voice.ai Dashboard

Create .env file (Recommended)

echo 'VOICE_AI_API_KEY=your-key-here' > .env

Or export directly

export VOICE_AI_API_KEY="your-api-key"

---

? OpenClaw Integration

Add this skill to your OpenClaw configuration at ~/.openclaw/openclaw.json:

{
  "skills": {
    "voice-ai-tts": {
      "enabled": true,
      "api_key": "your-voice-ai-api-key",
      "default_voice": "ellie",
      "default_format": "mp3"
    }
  },
  "tts": {
    "skill": "voice-ai-tts",
    "voice_id": "d1bf0f33-8e0e-4fbf-acf8-45c3c6262513",
    "streaming": true
  }
}

YAML config alternative

tts:
  skill: voice-ai-tts
  voice_id: d1bf0f33-8e0e-4fbf-acf8-45c3c6262513
  streaming: true

---

? Triggers

These chat commands work with OpenClaw:

Command	Description
/tts <text>	Generate speech with default voice
/tts --voice ellie <text>	Generate speech with specific voice
/tts --stream <text>	Generate with streaming mode
/voices	List available voices
/clone <audio_url>	Clone a voice from audio

Examples:

/tts Hello, welcome to Voice.ai!
/tts --voice oliver Good morning, everyone.
/tts --voice lilith --stream This is a long story that will stream as it generates...

---

?️ Available Voices

Voice	ID	Gender	Persona	Best For
ellie	d1bf0f33-8e0e-4fbf-acf8-45c3c6262513	female	youthful	Vlogs, social content
oliver	f9e6a5eb-a7fd-4525-9e92-75125249c933	male	british	Narration, tutorials
lilith	4388040c-8812-42f4-a264-f457a6b2b5b9	female	soft	ASMR, calm content
smooth	dbb271df-db25-4225-abb0-5200ba1426bc	male	deep	Documentaries, audiobooks
corpse	72d2a864-b236-402e-a166-a838ccc2c273	male	distinctive	Gaming, entertainment
skadi	559d3b72-3e79-4f11-9b62-9ec702a6c057	female	anime	Character voices
zhongli	ed751d4d-e633-4bb0-8f5e-b5c8ddb04402	male	deep	Gaming, dramatic content
flora	a931a6af-fb01-42f0-a8c0-bd14bc302bb1	female	cheerful	Kids content, upbeat
chief	bd35e4e6-6283-46b9-86b6-7cfa3dd409b9	male	heroic	Gaming, action content

---

? Supported Languages

Code	Language
en	English
es	Spanish
fr	French
de	German
it	Italian
pt	Portuguese
pl	Polish
ru	Russian
nl	Dutch
sv	Swedish
ca	Catalan

Use the multilingual model for non-English languages:

const audio = await client.generateSpeech({
  text: 'Bonjour le monde!',
  voice_id: 'ellie-voice-id',
  model: 'voiceai-tts-multilingual-v1-latest',
  language: 'fr'
});

---

? Voice Design

Customize voice output with these parameters:

Parameter	Range	Default	Description
temperature	0-2	1.0	Higher = more expressive, lower = more consistent
top_p	0-1	0.8	Controls randomness in speech generation

Example:

const audio = await client.generateSpeech({
  text: 'This will sound very expressive!',
  voice_id: 'ellie-voice-id',
  temperature: 1.8,
  top_p: 0.9
});

---

? Streaming Mode

Generate audio with real-time streaming (recommended for long texts):

# Stream audio as it generates
node scripts/tts.js --text "This is a long story..." --voice ellie --stream

# Streaming with custom output
node scripts/tts.js --text "Chapter one..." --voice oliver --stream --output chapter1.mp3

SDK streaming:

const stream = await client.streamSpeech({
  text: 'Long text here...',
  voice_id: 'ellie-voice-id'
});

// Pipe to file
stream.pipe(fs.createWriteStream('output.mp3'));

// Or handle chunks
stream.on('data', chunk => {
  // Process audio chunk
});

---

? Audio Formats

Format	Description	Use Case
mp3	Standard MP3 (32kHz)	General use
wav	Uncompressed WAV	High quality
pcm	Raw PCM audio	Processing
opus_48000_128	Opus 128kbps	Streaming
mp3_44100_192	High-quality MP3	Professional

See voice-ai-tts-sdk.js for all format options.

---

? CLI Usage

# Set API key
echo 'VOICE_AI_API_KEY=your-key-here' > .env

# Generate speech
node scripts/tts.js --text "Hello world!" --voice ellie

# Choose different voice
node scripts/tts.js --text "Good morning!" --voice oliver --output morning.mp3

# Use streaming for long texts
node scripts/tts.js --text "Once upon a time..." --voice lilith --stream

# Show help
node scripts/tts.js --help

---

? Voice Cloning

Clone any voice from an audio sample:

const VoiceAI = require('./voice-ai-tts-sdk');
const client = new VoiceAI(process.env.VOICE_AI_API_KEY);

// Clone from file
const result = await client.cloneVoice({
  file: './my-voice-sample.mp3',
  name: 'My Custom Voice',
  visibility: 'PRIVATE',
  language: 'en'
});

console.log('Voice ID:', result.voice_id);
console.log('Status:', result.status);

// Wait for voice to be ready
const voice = await client.waitForVoice(result.voice_id);
console.log('Voice ready!', voice);

Requirements:

• Audio sample: 10-30 seconds recommended
• Clear speech, minimal background noise
• Supported formats: MP3, WAV, M4A

---

? Files

voice-ai-tts/
├── SKILL.md              # This documentation
├── voice-ai-tts.yaml     # OpenAPI specification
├── voice-ai-tts-sdk.js   # JavaScript/Node.js SDK
├── scripts/
│   └── tts.js            # CLI tool
└── .env                  # API key (create this)

---

? Cost & Usage

Voice.ai uses a credit-based system. Check your usage:

// The SDK tracks usage via API responses
const voices = await client.listVoices();
// Check response headers for rate limit info

Tips to reduce costs:

• Use streaming for long texts (more efficient)
• Cache generated audio when possible
• Use appropriate audio quality for your use case

---

? Links

• Get API Key - Sign up and get your key
• API Documentation - Full API reference
• Voice Library - Browse all voices
• API Reference - Endpoint details
• Pricing - Plans and credits

---

? Changelog

v1.0.0 (2025-01-31)

• Initial release
• 9 curated voice personas
• 11 language support
• Streaming mode
• Voice cloning
• Voice design parameters
• Full SDK with error handling
• CLI tool

---

?️ SDK Quick Reference

const VoiceAI = require('./voice-ai-tts-sdk');
const client = new VoiceAI(process.env.VOICE_AI_API_KEY);

// List voices
const voices = await client.listVoices({ limit: 10 });

// Get voice details
const voice = await client.getVoice('voice-id');

// Generate speech
const audio = await client.generateSpeech({
  text: 'Hello, world!',
  voice_id: 'voice-id',
  audio_format: 'mp3'
});

// Generate to file
await client.generateSpeechToFile(
  { text: 'Hello!', voice_id: 'voice-id' },
  'output.mp3'
);

// Stream speech
const stream = await client.streamSpeech({
  text: 'Long text...',
  voice_id: 'voice-id'
});

// Clone voice
const clone = await client.cloneVoice({
  file: './sample.mp3',
  name: 'My Voice'
});

// Delete voice
await client.deleteVoice('voice-id');

---

❓ Troubleshooting

Error	Cause	Solution
AuthenticationError	Invalid API key	Check your VOICE_AI_API_KEY
PaymentRequiredError	Out of credits	Add credits at voice.ai/dashboard
RateLimitError	Too many requests	Wait and retry, or upgrade plan
ValidationError	Invalid parameters	Check text length and voice_id

---

Made with ❤️ by Nick Gill