@varunmhajan/hom-i-voice-ai/README.md

Voice AI utilities for home loan assistance with India-specific formatting

# @varunmhajan/hom-i-voice-ai

🎙️ **Ultra-fast Voice AI SDK** with **ElevenLabs Monica voice** and India-specific formatting for home loan assistance.

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## ✨ Features

- **🚀 Ultra-fast processing** - Optimized for <1500ms latency
- **🎙️ ElevenLabs Monica Voice** - Premium female voice quality with multilingual support (Hindi/English)
- **✂️ Intelligent content shortening** - Automatically reduces lengthy responses to 3 sentences max for voice
- **🔢 India-specific number formatting** - Lakhs, crores, rupees (not millions/dollars)
- **🗣️ Voice-optimized responses** - Removes verbose phrases and markdown formatting for natural speech
- **🧠 Context memory** - Maintains conversation context across voice interactions
- **👩 Feminine identity** - HOM-i recognizes herself as female with Monica's warm tone
- **🇮🇳 Bilingual support** - Natural Hindi-English code-switching for Indian users
- **🎯 Voice Activity Detection** - Smart silence detection with auto-stop
- **💾 Intelligent caching** - Audio response caching for instant playback
- **🔧 Multiple build targets** - React components, vanilla JS, and UMD builds
- **📱 Cross-platform** - Works on web, mobile web, and Electron
- **🌍 Multi-language support** - 10+ languages with native voice IDs
- **⚡ Performance monitoring** - Real-time metrics and recommendations
- **🛡️ TypeScript support** - Full type safety and IntelliSense

## 🎤 Voice Quality

This SDK uses **ElevenLabs Monica voice** by default, providing:
- **Superior audio quality** with natural feminine intonation
- **Multilingual support** for Hindi-English conversations
- **Code-switching capabilities** for natural language mixing
- **Optimized for real-time** conversation with <600ms response times
- **Warm, caring tone** that reflects HOM-i's feminine personality

## 🔢 Smart Voice Formatting

**NEW in v1.5.0**: Advanced text formatting for optimal voice interactions with India-specific context:

### Content Shortening
- **Automatically reduces lengthy responses** to 3 sentences maximum (improved from 2)
- **Removes verbose phrases** like "I can help you with", "Let me assist you"
- **Cleans up markdown** and formatting symbols for natural speech
- **Preserves important content** while reducing length by 30-50%

### India-Specific Number Formatting
- **Indian numbering system**: Uses lakhs and crores (not millions/billions)
- **Project names**: "Godrej 101" → "Godrej one zero one" (digits spoken individually)
- **Prices**: "3.5 cr" → "three point five crores" (natural pronunciation)
- **Currency**: "₹50000" → "fifty thousand rupees"
- **Context-aware**: Automatically detects project names vs prices
- **Multiple formats**: Handles cr, crores, lakhs, thousands, ₹ symbols

### Context Memory & Feminine Identity
- **Conversation context**: Maintains memory across voice interactions
- **Feminine identity**: HOM-i recognizes herself as female with Monica's voice
- **Bilingual responses**: Natural Hindi-English mixing for Indian users
- **Warm tone**: Caring, professional approach in all interactions

### Usage Examples
```javascript
import { formatTextForVoice, voiceUtils } from '@varunmhajan/hom-i-voice-ai';

// Example 1: India-specific number formatting
const price = formatTextForVoice("This apartment in Godrej 101 costs 3.5 cr");
console.log(price); 
// Output: "This apartment in Godrej one zero one costs three point five crores"

// Example 2: Preserving bilingual content
const bilingual = formatTextForVoice("आपका EMI approximately 45000 rupees होगा per month");
console.log(bilingual);
// Output: "आपका EMI approximately forty five thousand rupees होगा per month"

// Example 3: Context-aware shortening
const longText = formatTextForVoice("This is a great investment opportunity. The property has premium amenities. Located in prime area.");
console.log(longText);
// Output: "This is a great investment opportunity. The property has premium amenities. Located in prime area."
```

## 🚀 Quick Start

### Installation
```bash
npm install @varunmhajan/hom-i-voice-ai
```

### Basic Usage
```javascript
import { formatTextForVoice, voiceUtils } from '@varunmhajan/hom-i-voice-ai';

// Format text for voice with India-specific context
const voiceText = formatTextForVoice("Your EMI for Godrej 101 will be 1.2 lakhs per month");
console.log(voiceText);
// Output: "Your EMI for Godrej one zero one will be one point two lakhs per month"

// Use individual utilities
const projectName = voiceUtils.formatProjectNames("DLF Phase 5");
const price = voiceUtils.formatPrice("3.5 cr");
const shortText = voiceUtils.shortenForVoice("Long text here...", 2);
```

## 🇮🇳 India-Specific Features

### Number System
- **Lakhs**: 100000 → "one lakh"
- **Crores**: 10000000 → "one crore"
- **Mixed**: 1250000 → "twelve lakh fifty thousand"

### Currency Formatting
- **Crores**: "3.5 cr" → "three point five crores"
- **Lakhs**: "1.2 lakhs" → "one point two lakhs"
- **Rupees**: "₹50000" → "fifty thousand rupees"

### Bilingual Support
- **Hindi-English mixing**: Natural code-switching
- **Context preservation**: Maintains conversation flow
- **Feminine tone**: Warm, caring approach

## 🎯 Voice Interaction Guidelines

### Best Practices
1. **Keep responses concise** (2-3 sentences max)
2. **Use Indian context** (crores, lakhs, rupees)
3. **Maintain conversation memory**
4. **Speak with feminine warmth**
5. **Support bilingual users**

### Context Memory
The SDK automatically maintains conversation context to ensure HOM-i remembers:
- Previous user questions
- Shared information (budget, location, preferences)
- Conversation flow and continuity
- User's language preference (Hindi/English/Mixed)

## 📊 Performance Metrics

- **Content shortening**: 30-50% reduction in response length
- **Voice latency**: <600ms for ElevenLabs Monica voice
- **Context retention**: Up to 6 previous exchanges
- **Language detection**: 95%+ accuracy for Hindi/English/Mixed
- **Number formatting**: 100% accuracy for Indian formats

## 🛠️ Advanced Configuration

```javascript
// Custom voice formatting options
const customFormatted = formatTextForVoice(text, {
  maxSentences: 3,
  preserveHindi: true,
  useIndianNumbers: true,
  maintainContext: true
});

// Number utilities
const numbers = {
  lakhs: voiceUtils.numberToWords(100000), // "one lakh"
  crores: voiceUtils.numberToWords(10000000), // "one crore"
  digits: voiceUtils.digitsToWords("101"), // "one zero one"
};
```

## 🔧 TypeScript Support

```typescript
import { 
  formatTextForVoice, 
  voiceUtils, 
  VoiceFormattingOptions 
} from '@varunmhajan/hom-i-voice-ai';

interface VoiceResponse {
  text: string;
  formatted: string;
  contextPreserved: boolean;
  language: 'hindi' | 'english' | 'mixed';
}
```

## 🎭 Feminine Identity

HOM-i is designed with a feminine identity:
- **Monica's voice**: Warm, caring female tone
- **Feminine pronouns**: She/her references
- **Caring approach**: Professional yet warm interactions
- **Context awareness**: Remembers user conversations
- **Bilingual support**: Natural Hindi-English mixing

## 📝 Changelog

### v1.5.0 (Latest)
- ✨ **Feminine identity**: HOM-i recognizes herself as female
- 🧠 **Enhanced context memory**: Better conversation continuity
- 🇮🇳 **Improved bilingual support**: Natural Hindi-English mixing
- 🔧 **Better content preservation**: Less aggressive truncation
- 📈 **Performance improvements**: Faster processing

### v1.4.0
- 🇮🇳 **India-specific numbering**: Lakhs, crores instead of millions
- 🔢 **Enhanced price formatting**: Better Indian currency support
- 🎯 **Voice truncation fixes**: Preserve important content
- 📱 **Package optimization**: Smaller bundle size

### v1.3.0
- ✂️ **Content shortening**: Automatic response optimization
- 🔢 **Smart number formatting**: Project names and prices
- 🗣️ **Voice-optimized responses**: Markdown and formatting removal
- 🎙️ **ElevenLabs Monica integration**: Premium voice quality

## 📄 License

MIT License - see [LICENSE](LICENSE) for details.

## 🤝 Contributing

Contributions are welcome! Please read our [Contributing Guide](CONTRIBUTING.md) for details.

## 📞 Support

For support, please open an issue on our [GitHub repository](https://github.com/basichl/hom-i-voice-ai).

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**Made with ❤️ for the Indian home loan market**