ElevenLabs Voice AI Guide: TTS and Voice Synthesis
info
For detailed information about using models with APIpie, check out our Models Overview and Completions Guide.
Description
ElevenLabs is a leading provider of state-of-the-art text-to-speech technology. Their advanced AI models offer natural-sounding voice synthesis with unprecedented quality and control. The platform supports multiple languages and can generate highly realistic speech with various voices, accents, and emotional tones.
Learn more about ElevenLabs:
Technology Overview
ElevenLabs utilizes cutting-edge deep learning techniques to create natural-sounding synthetic voices. Their technology incorporates:
- Neural voice cloning
- Multilingual speech synthesis
- Real-time voice generation
- Emotion and style control
- High-fidelity audio output
Available Models
| Model | Max Tokens | Provider | Type | Description |
|---|---|---|---|---|
| eleven_multilingual_v2 | 5000 | elevenlabs | tts | Latest multilingual model with enhanced quality |
| eleven_multilingual_v1 | 5000 | elevenlabs | tts | First generation multilingual model |
| eleven_monolingual_v1 | 5000 | elevenlabs | tts | English-optimized model |
| eleven_turbo_v2 | 5000 | elevenlabs | tts | Fast generation model |
| eleven_turbo_v2_5 | 5000 | elevenlabs | tts | Enhanced turbo model |
| eleven_flash_v2 | 5000 | elevenlabs | tts | Ultra-fast generation |
| eleven_flash_v2_5 | 5000 | elevenlabs | tts | Latest ultra-fast model |
Available Voices
ElevenLabs provides a diverse set of pre-made voices with different characteristics:
Professional Narration
- Rachel: Young female, American accent, calm tone - ideal for narration
- Drew: Middle-aged male, American accent - perfect for news reading
- Antoni: Young male, American accent - well-rounded narrator
- Thomas: Young male, American accent - calm meditation voice
- Bill: Older male, American accent - trustworthy narration
Character Voices
- Clyde: Middle-aged male, American accent - war veteran character
- Dave: Young male, British-Essex accent - conversational gaming voice
- Fin: Older male, Irish accent - sailor character
- Glinda: Middle-aged female, American accent - witch character
- Charlotte: Young female, Swedish accent - seductive character
News & Media
- Paul: Middle-aged male, American accent - ground reporter
- Sarah: Young female, American accent - soft news voice
- Daniel: Middle-aged male, British accent - authoritative news
- Alice: Middle-aged female, British accent - confident news
- Joseph: Middle-aged male, British accent - field reporter
Social Media & Casual
- Laura: Young female, American accent - upbeat social media
- Will: Young female, American accent - friendly social
- Jessica: Young female, American accent - expressive conversational
- Eric: Middle-aged male, American accent - friendly conversational
- Chris: Middle-aged male, American accent - casual style
Special Purpose
- Ethan: Young male, American accent - ASMR/whisper
- Nicole: Young female, American accent - audiobook whisper
- Dorothy: Young female, British accent - children's stories
- Michael: Older male, American accent - audiobook narration
- Grace: Young female, American Southern accent - gentle audiobook
Multilingual
- Giovanni: Young male, Italian-English accent - foreign audiobook
- Mimi: Young female, Swedish-English accent - animation
- Charlie: Middle-aged male, Australian accent - conversational
- James: Older male, Australian accent - news
- George: Middle-aged male, British accent - warm narration
Example API Call
curl -X POST 'https://apipie.ai/v1/audio/speech' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer YOUR_API_KEY' \
--data-raw '{
"model": "eleven_multilingual_v2",
"voice": "Rachel",
"input": "Hello! This is a test of the ElevenLabs text to speech API.",
"voice_settings": {
"stability": 0.5,
"similarity_boost": 0.75
}
}'
Response Example
{
"created": 1729535643,
"audio": {
"content_type": "audio/mpeg",
"url": "https://example.com/generated-audio.mp3"
},
"usage": {
"text_characters": 57,
"cost": 0.004275,
"latency_ms": 1200
}
}
Voice Settings and Controls
You can customize the voice output using these parameters:
- stability (0-1): Controls voice stability. Higher values make the voice more consistent but less expressive
- similarity_boost (0-1): Enhances similarity to the original voice. Higher values make it sound more like the reference
- style (0-1): Adjusts speaking style intensity
- use_speaker_boost (boolean): Enhances speaker clarity
Integration and Use Cases
ElevenLabs' text-to-speech technology can be integrated into various applications:
-
Content Creation
- Audiobook production
- Podcast generation
- Video narration
- E-learning content
-
Entertainment
- Game character voices
- Animation dubbing
- Interactive storytelling
- Voice-enabled NPCs
-
Business Applications
- IVR systems
- Virtual assistants
- Customer service
- Corporate training
-
Accessibility
- Screen readers
- Text-to-speech for visually impaired
- Language learning tools
- Reading assistance
Best Practices and Optimization
-
Model Selection:
- Use multilingual_v2 for highest quality across languages
- Use turbo or flash models for faster generation
- Use monolingual for English-only applications
-
Voice Selection:
- Choose voices based on use case (narration, characters, news, etc.)
- Consider accent and age appropriate for your content
- Test multiple voices to find the best fit
-
Text Preparation:
- Use punctuation to control pacing
- Break long text into natural segments
- Include phonetic spelling for unusual words
Performance and Limitations
- Maximum text length varies by subscription
- Some voices may have accent or language restrictions
- Generation time varies by model and text length
Security and Ethics
ElevenLabs maintains strict guidelines for voice usage:
- Voice cloning requires explicit consent
- Built-in content filtering
- Usage monitoring and abuse prevention
- Secure API access and authentication
Resources and Support
Get help and learn more:
tip
Try out ElevenLabs voices in APIpie's supported integrations