Tutorial 39: Real-Time Call Transcription & Sentiment Dashboard

Build a Live Monitoring System That Transcribes Active Calls and Displays Sentiment Analysis in Real-Time

Build a live transcription and sentiment analysis system that processes active calls in real-time, displaying agent conversations, customer sentiment, and keyword alerts on a web dashboard — enabling supervisors to monitor call quality as it happens.

Table of Contents

Introduction

Architecture Overview

Prerequisites

Audio Capture Methods

Streaming Transcription Engine

Sentiment Analysis

Message Broker — Redis Pub/Sub

WebSocket Server

Dashboard Frontend

Alert System

Production Deployment

Integration with ViciDial

Troubleshooting

Difficulty: Advanced

Reading Time: ~75 minutes

Technologies: Python, FastAPI, Faster-Whisper, Deepgram, VADER, Redis, WebSocket, Chart.js, Asterisk, AudioSocket

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