DhvaniKavach

Real-Time Scam Detection Using AI-Powered Voice and Text Analysis

TEAM CRANKERHUNTERS

THE PROBLEM

The Rising Tide of Digital Fraud

India faces an alarming surge in phone and online scams, causing significant financial and emotional trauma to victims across all demographics. Current protection mechanisms are fundamentally reactive—acting only after damage has occurred.

The critical gap: no AI system actively safeguards users during live conversations, leaving them vulnerable at the moment of attack.

₹1.2K Cr

Annual Fraud Losses

Reported cybercrime losses in India

95%

Detection Failure

Victims unable to identify scams during calls

0

Real-Time Solutions

No proactive AI protection exists today

OUR SOLUTION

DhvaniKavach: Your Real-Time Digital Shield

Live Voice Analysis

Monitors and analyzes voice conversations in real-time using advanced speech recognition

Text Detection

Scans messages and chat conversations for fraudulent patterns and suspicious content

Instant Risk Scoring

Calculates scam probability and alerts users immediately when threats are detected

DhvaniKavach converts speech to text using cutting-edge AI, processes it through natural language understanding models, and delivers instant alerts—protecting users at the moment they need it most.

Powerful Features Built for Protection

Text-Based Detection

Analyzes SMS, WhatsApp, and chat messages for fraudulent patterns using NLP algorithms

Audio Analysis

Real-time voice conversation monitoring with instant scam pattern recognition

Live Risk Scoring

Continuous calculation of scam probability during ongoing conversations (0-100 scale)

Instant Alerts

Real-time warnings when suspicious behaviour crosses safety thresholds

Scalable Architecture: Built on robust backend infrastructure ready to handle millions of concurrent users

ARCHITECTURE

How DhvaniKavach Works

Input Capture

Frontend captures text messages or live audio from user conversations

Speech-to-Text

Audio streams converted to accurate text transcripts using Whisper AI

NLP Analysis

Advanced language models analyze conversation content for scam indicators

Risk Engine

Machine learning classifier computes precise scam probability score

User Alert

Instant notification delivered to dashboard when risk detected

Cutting-Edge Technology Stack

Frontend Layer

• Next.js for responsive web interface

• React for dynamic user experiences

• Real-time data visualization

Backend Infrastructure

• FastAPI for high-performance APIs

• Python for AI model integration

• Scalable microservices architecture

AI & ML Models

• NLP models for text analysis

• ML classifiers for risk prediction

• Whisper for speech recognition

Deployment

• Local deployment ready

• Cloud-native architecture

• Scalable infrastructure

Built with open-source technologies for transparency, security, and rapid innovation

USER JOURNEY

Seamless Protection in Five Steps

01

User Initiates Conversation

Individual begins text or voice interaction through any communication channel

02

Audio Transcription

Voice calls instantly converted to accurate text transcripts for analysis

03

AI Content Analysis

Natural language processing models examine conversation for scam patterns

04

Risk Score Generation

Machine learning algorithms calculate precise threat level (0-100 scale)

05

Alert Delivery

User receives instant notification when risk exceeds safety threshold

Revolutionary Innovation

Real-Time Protection

First-of-its-kind scam detection during live calls—not after the fact. Continuous monitoring provides protection exactly when users need it most.

Proactive Defence

Shifts from reactive post-analysis to active threat prevention. Stops scams before financial or emotional damage occurs.

Integrated AI

Combines natural language processing with advanced speech recognition for comprehensive protection across all communication channels.

India-First Design

Specifically trained on Indian scam patterns, languages, and fraud tactics for maximum local effectiveness.

Transforming Digital Safety Across Sectors

Bank Fraud Prevention

Protects customers from phishing calls impersonating financial institutions

Elderly Protection

Safeguards vulnerable seniors from sophisticated social engineering attacks

Support Verification

Helps users verify authenticity of customer service interactions

Cybercrime Awareness

Educates users in real-time about evolving fraud tactics

Personal Safety Tool

Empowers individuals with AI-powered protection in their pocket

₹500 Cr

Potential annual fraud prevention in banking sector alone

50M+

Vulnerable users who could benefit from protection

Building a Safer Digital Future

Immediate Impact

• Reduces financial fraud losses

• Protects vulnerable demographics

• Promotes digital safety awareness

• Builds trust in communication

Technical Feasibility

• Open-source AI models

• Lightweight API architecture

• Standard hardware requirements

• Easy app integration

Future Roadmap

• Mobile app deployment

• Multilingual support

• Emotion analysis

• Law enforcement tools

• Telecom integration

DhvaniKavach: Your Real-Time Digital Shield

An AI-powered, scalable solution that prevents scams before damage occurs—protecting millions of users across India.

TEAM CRANKERHUNTERS

BUILDING SAFER CONVERSATIONS WITH AI