Overview
Voice Synthesis Overview
Voice AI Labs offers two powerful voice synthesis methods: text-to-speech and voice conversion. Whether you need to convert text to speech or change the timbre of existing audio, we provide professional-grade solutions.
Core Features
📝 Text-to-Speech
Convert any text into natural, fluent speech with support for multiple languages and emotional expressions.
Key Features:
- Supports 30+ languages and dialects
- Rich emotional and tonal control
- Adjustable speech rate and volume
- Use your cloned characters or community characters
- Real-time preview and download
Use Cases:
- Video narration and voiceover production
- Audiobooks and podcast content
- Educational training materials
- Advertising and marketing content
- Accessibility reading services
🎵 Voice Conversion
Convert the timbre of any audio to your chosen target voice while preserving the original emotion and rhythm.
Key Features:
- Maintains original audio emotion
- Precise timbre conversion
- Supports speech and singing conversion
- One-click multi-character dubbing
- High-quality output
Use Cases:
- Film dubbing and role-playing
- Song covers and music creation
- Multi-character content production
- Voice style unification
- Creative audio experimentation
Feature Comparison
| Feature | Text-to-Speech | Voice Conversion |
|---|---|---|
| Input Type | Text | Audio File |
| Output | Speech Audio | Converted Audio |
| Emotion Control | Adjustable | Preserves Original |
| Speed Control | Adjustable | Preserves Original |
| Use Case | Create voice content from scratch | Change existing audio timbre |
Usage Workflow
Text-to-Speech Workflow
- Select Character: Choose a voice from your library or Voice Square
- Input Text: Enter or paste the text content to convert
- Adjust Parameters: Set speech rate, emotion, etc. (optional)
- Generate Speech: Click the generate button to start synthesis
- Preview & Download: Listen to the result and download the audio file
Voice Conversion Workflow
- Select Target Character: Choose the target voice for conversion
- Upload Audio: Upload source audio file or use online recording
- Start Conversion: Click the convert button to begin processing
- Preview & Download: Listen to the converted result and download
Quality Assurance
Best Practices
Text-to-Speech:
- ✅ Use standard punctuation to control pauses
- ✅ Use line breaks appropriately for paragraphs
- ✅ Avoid overly long single sentences
- ✅ Choose character voices that match the content
Voice Conversion:
- ✅ Use clear source audio
- ✅ Avoid excessive background noise
- ✅ Select target characters with similar timbre
- ✅ Maintain consistent audio quality
Quota and Limits
Different membership tiers offer varying synthesis quotas:
| Plan | Text-to-Speech | Voice Conversion |
|---|---|---|
| Starter | 80,000 characters/month | 440 minutes/month |
| Standard | 270,000 characters/month | 1,500 minutes/month |
| Premium | 540,000 characters/month | 3,000 minutes/month |
Subject to change, please refer to the Pricing page for current rates.
Check your current usage in the user menu.
Technical Specifications
Supported Input Formats
Text-to-Speech:
- Plain text
- Maximum length: 1,000 characters per request
- Supports multilingual mixing
Voice Conversion:
- Audio formats: WAV, MP3, OGG
- Maximum duration: 5 minutes per request
- Maximum file size: 20MB
Output Format
- Format: MP3
- Sample rate: 24kHz
- Bit rate: 128kbps
- Channels: Mono
Advanced Features
Batch Processing
- Text-to-speech supports batch generation
- Voice conversion supports queue processing
- Automatic generation history saving
History Records
- View all generation records
- Re-download historical audio
- Manage and delete records
Getting Started
Ready to start voice synthesis?
- Text-to-Speech: Visit Text-to-Speech for detailed usage instructions
- Voice Conversion: Visit Voice Conversion for conversion techniques
FAQ
Q: What's the difference between text-to-speech and voice conversion? A: Text-to-speech converts text to speech, while voice conversion changes the timbre of existing audio.
Q: Can I use my own cloned characters? A: Yes, you can use characters you've created or public characters from Voice Square.
Q: Can generated audio be used commercially? A: This depends on your plan and character authorization. See Terms of Service for details.
Continue reading to learn more about Text-to-Speech and Voice Conversion.