Voice Configuration
Each language has specific voice options and settings:
Selecting Voices
By Language
- Select your target language first
- Available voices filter automatically
- Preview voices before selecting
- Choose based on gender and tone
Voice Quality Tiers
| Tier | Quality | Languages | Cost |
|---|
| Standard | Good | All | Standard |
| Premium | Excellent | Major | +20% |
| Neural | Best | Select | +50% |
Premium and neural voices provide more natural intonation and better pronunciation for professional use cases.
Voice Speed
Adjust speaking speed for different languages:
- Range: 0.5 - 2.0
- Default: 1.0
- Recommended: 0.8 - 1.2 for most use cases
Language-Specific Recommendations
| Language | Recommended Speed | Notes |
|---|
| English | 1.0 | Standard pace |
| Spanish | 0.9 | Slightly slower |
| French | 0.95 | Clear pronunciation |
| German | 0.9 | Complex compound words |
| Hindi | 0.85 | Ensure clarity |
| Japanese | 1.0 | Standard pace works well |
Voice Gender
Select voice gender based on your brand and use case:
{
"voiceGender": "female"
}
- Options:
male, female, neutral
- Availability: Varies by language
Not all languages have all gender options. Check available voices for your selected language.
Testing Voices
Preview Feature
- Navigate to agent settings
- Go to Voice tab
- Select language and voice
- Enter sample text
- Click Preview
- Adjust settings as needed
Sample Text
Use realistic conversation samples:
English:
Hello! Thank you for calling. How can I help you today?
¡Hola! Gracias por llamar. ¿En qué puedo ayudarle hoy?
Bonjour ! Merci d'avoir appelé. Comment puis-je vous aider aujourd'hui ?
Advanced Settings
Pitch
Adjust voice pitch (where supported):
- Range: -20 to +20
- Default: 0
- Note: Not available for all voices
Stability
Control voice stability vs. expressiveness:
{
"voiceStability": 0.5
}
- Range: 0.0 - 1.0
- Lower: More expressive, varied
- Higher: More stable, consistent
Language-Specific Considerations
Tonal Languages (Chinese, Vietnamese)
- Use neural voices for better tone accuracy
- Test thoroughly with native speakers
- Adjust speed for clarity
Languages with Compound Words (German, Dutch)
- Slightly slower speed recommended
- Ensure proper word separation
- Test with long compound words
Languages with Complex Scripts (Hindi, Arabic)
- Always use native script
- Verify all diacritical marks
- Test pronunciation carefully
Best Practices
Match Voice to Brand
- Professional: Use formal, clear voices
- Friendly: Use warm, expressive voices
- Technical: Use clear, measured voices
Test with Native Speakers
- Get feedback from native speakers
- Test in real-world conditions
- Adjust based on feedback
Consider Context
- Customer support: Clear, patient voice
- Sales: Enthusiastic, engaging voice
- Reminders: Friendly, brief voice
Next Steps
