AI & Speech Recognition
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Build Speech-To-Text API Into Your Applications: Easy How to Guide
A speech-to-text API lets you integrate an ASR engine into your application with direct, automated access to transcription services.

What Is Speaker Diarization? (How It Works With Real-Life Examples)
Discover what speaker diarization is and how it separates voices in an audio file for clearer, more accurate transcription.

What is a Ground-Truth Transcript?
Learn how a ground-truth transcript helps measure the accuracy of an automated speech recognition (ASR) system's output.

The Podcast Challenge: Testing Rev.ai’s Speech Recognition Accuracy
We tested our Rev.ai Speech Recognition Technology's accuracy on a wide range of podcasts. Spoiler alert: we beat our competition.
Closed Captioning REST API: How to Use a Speech Recognition API for Captions
Learn how to use a speech-to-text API for captioning online videos. We wrote this guide using Postman and the Rev AI workspace.
Automatic Speech Recognition: How Rev’s AI and Human Transcriptionists Work Together
One of the most rapidly advancing areas of technology today is automatic speech recognition (ASR). Essentially, ASR systems use various algorithmic
What Are Machine Generated Closed Captions?
Learn more about how machine-generated closed captions work and when they are most useful.
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