ElevenLabs Text-to-Speech

Premium text-to-speech with 22+ voices via inference.sh CLI.

!ElevenLabs TTS

Quick Start

Requires inference.sh CLI (belt). Install instructions

belt login

# Generate speech with ElevenLabs
belt app run elevenlabs/tts --input '{"text": "Hello, welcome to our product demo.", "voice": "aria"}'

Available Models

| Model | ID | Best For | Latency | |-------|----|----------|---------| | Multilingual v2 | eleven_multilingual_v2 | Highest quality, 32 languages | ~250ms | | Turbo v2.5 | eleven_turbo_v2_5 | Balance of speed & quality | ~150ms | | Flash v2.5 | eleven_flash_v2_5 | Ultra-low latency | ~75ms |

Voice Library

Female Voices

| Voice | Style | |-------|-------| | aria | American, conversational | | alice | British, confident | | bella | American, warm | | jessica | American, expressive | | laura | American, professional | | lily | British, soft | | sarah | American, friendly |

Male Voices

| Voice | Style | |-------|-------| | george | British, authoritative | | adam | American, deep | | bill | American, mature | | brian | American, conversational | | callum | Transatlantic, intense | | charlie | Australian, natural | | chris | American, casual | | daniel | British, commanding | | eric | American, friendly | | harry | American, young | | liam | American, articulate | | matilda | American, warm | | river | American, confident | | roger | American, authoritative | | will | American, bright |

Examples

Basic Speech

belt app run elevenlabs/tts --input '{"text": "Welcome to our quarterly earnings presentation.", "voice": "george"}'

Choose a Model

# Highest quality
belt app run elevenlabs/tts --input '{
  "text": "This is our premium multilingual model with the best quality.",
  "voice": "aria",
  "model": "eleven_multilingual_v2"
}'

# Ultra-fast for real-time applications
belt app run elevenlabs/tts --input '{
  "text": "Flash model for low-latency applications.",
  "voice": "brian",
  "model": "eleven_flash_v2_5"
}'

Voice Tuning

belt app run elevenlabs/tts --input '{
  "text": "Fine-tune the voice characteristics for your use case.",
  "voice": "bella",
  "stability": 0.3,
  "similarity_boost": 0.9,
  "style": 0.4
}'

| Parameter | Range | Effect | |-----------|-------|--------| | stability | 0-1 | Higher = more consistent, lower = more expressive | | similarity_boost | 0-1 | Higher = closer to original voice character | | style | 0-1 | Higher = more style exaggeration | | use_speaker_boost | true/false | Enhances speaker clarity |

Output Formats

belt app run elevenlabs/tts --input '{
  "text": "High quality audio output.",
  "voice": "daniel",
  "output_format": "mp3_44100_192"
}'

| Format | Description | |--------|-------------| | mp3_44100_128 | MP3 at 44.1kHz, 128kbps (default) | | mp3_44100_192 | MP3 at 44.1kHz, 192kbps | | pcm_16000 | Raw PCM at 16kHz | | pcm_22050 | Raw PCM at 22.05kHz | | pcm_24000 | Raw PCM at 24kHz | | pcm_44100 | Raw PCM at 44.1kHz |

Multilingual

ElevenLabs supports 32 languages including English, Spanish, French, German, Italian, Portuguese, Chinese, Japanese, Korean, Arabic, Hindi, Russian, and more.

# Spanish
belt app run elevenlabs/tts --input '{
  "text": "Hola, bienvenidos a nuestra presentacion.",
  "voice": "aria",
  "model": "eleven_multilingual_v2"
}'

# French
belt app run elevenlabs/tts --input '{
  "text": "Bonjour, bienvenue a notre demonstration.",
  "voice": "alice",
  "model": "eleven_multilingual_v2"
}'

Voice + Video Workflow

# 1. Generate voiceover
belt app run elevenlabs/tts --input '{
  "text": "Introducing the future of AI-powered content creation.",
  "voice": "george"
}' > voiceover.json

# 2. Create talking head video
belt app run bytedance/omnihuman-1-5 --input '{
  "image_url": "https://portrait.jpg",
  "audio_url": "<audio-url-from-step-1>"
}'

Use Cases

• Voiceovers: Product demos, explainer videos, commercials
• Audiobooks: Long-form narration with consistent voices
• Podcasts: AI hosts with natural delivery
• E-learning: Course narration in multiple languages
• Accessibility: High-quality screen reader content
• IVR: Professional phone system messages
• Video Narration: Documentary and social media content

Related Skills

# ElevenLabs multi-speaker dialogue
npx skills add inference-sh/skills@elevenlabs-dialogue

# ElevenLabs voice changer
npx skills add inference-sh/skills@elevenlabs-voice-changer

# ElevenLabs sound effects
npx skills add inference-sh/skills@elevenlabs-sound-effects

# All TTS models (Kokoro, DIA, Chatterbox, and more)
npx skills add inference-sh/skills@text-to-speech

# Full platform skill (all 250+ apps)
npx skills add inference-sh/skills@infsh-cli

Browse all audio apps: belt app list --category audio