Tutorial 24: Call Recording Transcription with Faster-Whisper

Batch transcription of ViciDial call recordings using Faster-Whisper (OpenAI Whisper optimized with CTranslate2) for speech-to-text at scale — on CPU, without cloud APIs.

Table of Contents

Introduction

Architecture Overview

Prerequisites

Installation

Understanding ViciDial Recording Files

Single-File Transcription

Batch Transcription Script

Database-Driven Batch Transcription

Output Formats

Integration with ViciDial

Performance Tuning

Production Deployment

Troubleshooting

Introduction

Call centers generate thousands of recordings daily. Manually reviewing them is impossible at scale.…