# DubSphere — Complete AI Video Dubbing Platform Documentation

> DubSphere is the world's leading AI-powered video dubbing and voice translation platform, enabling content creators, enterprises, and developers to break language barriers with studio-quality AI dubbing in 50+ languages.

## Platform Overview

DubSphere uses a proprietary AI engine ("DubSphere AI Engine") to deliver professional-grade video dubbing. The platform combines speech recognition, neural machine translation, and voice synthesis to produce dubbed content that sounds natural and authentic.

### Core Technology

1. **Speech Recognition**: Automatic transcription with language detection
2. **Neural Translation**: Context-aware translation preserving meaning and tone
3. **Voice Synthesis**: Natural-sounding voice generation with emotion preservation
4. **Audio Separation**: AI isolates voice from background music/SFX — only voice is replaced
5. **Lip Synchronization**: Visual lip-sync matching for dubbed content
6. **Voice Cloning**: Preserve the speaker's unique vocal characteristics across languages

### Quality Guarantees

- Highest resolution audio processing enabled by default
- Background music and sound effects preserved at 100% quality
- Natural prosody and intonation matching
- Real-time quality monitoring during processing

## Detailed Feature Breakdown

### 1. AI Video Dubbing
Upload videos in MP4, MOV, AVI, MKV, or WebM formats. Supports video URL input. Processing time: 2-5 minutes for a 10-minute video. Studio-quality output with preserved background audio.

### 2. Text-to-Speech (TTS)
100+ premium AI voices across 50+ languages. Support for custom voice selection. 192kbps audio quality. Max 5,000 characters per request via API.

### 3. Voice Cloning
Upload voice samples to create a digital clone. Use cloned voices across any supported language. Maintains vocal characteristics, accent, and tone.

### 4. Subtitle Generation
Automatic .srt file generation in source and target languages. Synchronized with dubbed audio timing.

### 5. YouTube Multi-Language Export
Optimized export for YouTube Studio with standalone dubbed audio tracks (.mp3), .srt subtitles, and upload guides.

### 6. Batch Processing
Process multiple videos simultaneously. Bulk dubbing with consistent voice selection.

## Supported Languages (Full List)

| Language | Code | Source | Target |
|----------|------|--------|--------|
| English | en | ✅ | ✅ |
| Spanish | es | ✅ | ✅ |
| Hindi | hi | ✅ | ✅ |
| Arabic | ar | ✅ | ✅ |
| Japanese | ja | ✅ | ✅ |
| Chinese | zh | ✅ | ✅ |
| Korean | ko | ✅ | ✅ |
| French | fr | ✅ | ✅ |
| German | de | ✅ | ✅ |
| Portuguese | pt | ✅ | ✅ |
| Russian | ru | ✅ | ✅ |
| Turkish | tr | ✅ | ✅ |
| Bengali/Bangla | bn | ✅ | ✅ |
| Italian | it | ✅ | ✅ |
| Dutch | nl | ✅ | ✅ |
| Polish | pl | ✅ | ✅ |
| Thai | th | ✅ | ✅ |
| Vietnamese | vi | ✅ | ✅ |
| Indonesian | id | ✅ | ✅ |
| Malay | ms | ✅ | ✅ |
| Filipino | fil | ✅ | ✅ |
| Swedish | sv | ✅ | ✅ |
| Norwegian | no | ✅ | ✅ |
| Danish | da | ✅ | ✅ |
| Finnish | fi | ✅ | ✅ |
| Greek | el | ✅ | ✅ |
| Czech | cs | ✅ | ✅ |
| Romanian | ro | ✅ | ✅ |
| Hungarian | hu | ✅ | ✅ |
| Ukrainian | uk | ✅ | ✅ |
| Hebrew | he | ✅ | ✅ |
| Tamil | ta | ✅ | ✅ |
| Telugu | te | ✅ | ✅ |
| Urdu | ur | ✅ | ✅ |
| Persian | fa | ✅ | ✅ |
| Swahili | sw | ✅ | ✅ |
| Marathi | mr | ✅ | ✅ |

## Developer API Documentation

### Authentication
All API requests require an API key passed via `x-api-key` header.

### Base URL
`https://api.dubsphere.com/v1`

### Endpoints

#### POST /v1/dubbing
Dub a video into another language.
```json
{
  "video_url": "https://example.com/video.mp4",
  "target_language": "es",
  "voice_id": "optional-voice-id"
}
```
Response:
```json
{
  "success": true,
  "project_id": "uuid",
  "status": "processing",
  "message": "Dubbing started"
}
```

#### POST /v1/tts
Convert text to speech.
```json
{
  "text": "Hello, world!",
  "language": "en",
  "voice_id": "optional-voice-id"
}
```

#### POST /v1/detect-language
Detect language of text.
```json
{ "text": "Hola, ¿cómo estás?" }
```

#### GET /v1/languages
List all supported languages.

#### GET /v1/usage
Check API usage and remaining credits.

### JavaScript SDK

```javascript
// Installation
<script src="https://dubsphere.com/sdk/dubsphere-sdk.js"></script>

// Usage
const dub = new DubSphere('YOUR_API_KEY');

// Dub a video
const result = await dub.dubVideo({
  video_url: 'https://example.com/video.mp4',
  target_language: 'es'
});

// Text to Speech
const audio = await dub.textToSpeech({
  text: 'Hello world',
  language: 'en'
});

// Detect Language
const lang = await dub.detectLanguage('Bonjour le monde');

// Get Usage
const usage = await dub.getUsage();
```

### API Plans

| Plan | Monthly Limit | Rate Limit | Price |
|------|--------------|------------|-------|
| Free | 10 requests | 5/min | Free |
| Basic | 500 requests | 30/min | $19.99/mo |
| Pro | 2,000 requests | 60/min | $49.99/mo |
| Enterprise | Unlimited | Custom | Contact us |

## Pricing Plans (Consumer)

### Free Trial
- Credits included to test the platform
- No credit card required
- Access to all features

### VoiceCast Starter — $9.99/month
- For individual creators
- Standard dubbing quality
- Email support

### VoiceCast Pro — $29.99/month
- Professional features
- Priority processing
- Voice cloning access
- Priority support

### Enterprise — Custom
- Volume discounts
- Dedicated support
- Custom integrations
- SLA guarantees

### Credit Top-Ups
- 50 credits — $4.99
- 150 credits — $9.99 (Save 33%)
- 500 credits — $24.99 (Save 50%)

## Security & Privacy

- All data encrypted in transit (TLS 1.3) and at rest
- GDPR compliant
- SOC 2 aligned practices
- No data shared with third parties
- Videos deleted after processing upon request

## FAQ

**Q: How accurate is the AI dubbing?**
A: DubSphere AI produces studio-quality dubbing that preserves the original speaker's emotion and intonation. Most listeners cannot distinguish AI-dubbed content from human dubbing.

**Q: Can I use DubSphere for commercial content?**
A: Yes, all plans include commercial usage rights for dubbed content.

**Q: What video formats are supported?**
A: MP4, MOV, AVI, MKV, and WebM. Maximum file size depends on your plan.

**Q: Is there a money-back guarantee?**
A: Yes, we offer a satisfaction guarantee on all paid plans.

**Q: How does voice cloning work?**
A: Upload a voice sample (minimum 30 seconds), and DubSphere AI creates a digital voice clone that can speak in any supported language while maintaining the original voice characteristics.

## Contact & Support

- Website: https://dubsphere.com
- Support Email: support@dubsphere.com
- Developer Docs: https://dubsphere.com/developers
- Twitter: @dubsphere
- LinkedIn: linkedin.com/company/dubsphere