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A magnifying glass magnifying the word "topic" on a yellow background
Speech to Text Technology

Extract Topics from Transcribed Speech with Node.js

Rev AI's Topic Extraction API identifies the main topics in a speech transcript. Learn how to get started with our guide.

Vikram Vaswani
|
June 15, 2022
A man looks a tablet while standing in a data center
Artificial Intelligence

Rev AI Expands Its Presence in the European Union

Rev AI has launched our very first European data processing center in Frankfurt, Germany, so customers can store and process data in the US or EU.

Ajita Mishra
|
June 6, 2022
Six images in a grid pattern of microphones
Rev Spotlight

Get Started with Rev AI using PHP

To help developers integrate our APIs into their applications, we offer SDKs for Node, Java and Python. Learn more about how to use Rev AI with PHP.

Vikram Vaswani
|
May 30, 2022
An illustration of a blue speech bubble with the word "hello" in several different languages
Rev Spotlight

Transcribe Audio with Automatic Language Identification using Node.js and Rev AI Webhooks

Learn how our AI webhooks and Node.js can help you transcribe audio with automatic language identification.

Vikram Vaswani
|
May 16, 2022

Open vs. Closed Captions: What's the Difference? Why Does It Matter?

Understand open captions vs. closed captions, how each supports accessibility, and which option works best for your video content.

March 4, 2026

How to Record Audio on an iPhone in Three Different Ways

Master iPhone audio recording with our complete guide. Learn to use Voice Memos, Rev's recorder app, and online tools—plus how to get your audio transcribed.

December 18, 2025

Transcript to Trial: Leveraging Deposition Technology

Discover how firms are saving 12 hours per week and per attorney by switching to deposition technology with this whitepaper from Rev. Click to download.

November 20, 2025

Building a Speech Recognition System vs. Buying or Using an API

Pros and cons of building your own speech recognition engine or system vs using a pre built service or API that converts speech to text

November 5, 2025
Barack Obama Speech Transcript on George Floyd Death & Protests

Barack Obama Speech Transcript on George Floyd Death & Protests

Barack Obama participated in a virtual town hall in which he spoke about George Floyd’s death and the following protests. Obama said every mayor should push for police reform in his statement. Read the full transcript here.

June 3, 2020
Joe Biden Philadelphia Speech Transcript on Protests for George Floyd

Joe Biden Philadelphia Speech Transcript on Protests for George Floyd

Joe Biden gave a June 2 speech in Philadelphia in which he addressed the nationwide protests & demonstrations for George Floyd. He said Donald Trump is fanning “the flames of hate.” Read his full speech transcript here.

June 2, 2020
Minnesota Governor Tim Walz June 2 Press Conference Transcript

Minnesota Governor Tim Walz June 2 Press Conference Transcript

Minnesota Governor Tim Walz held a June 2 press conference. He provided updates on the George Floyd protests and efforts to end further violence and looting.

June 2, 2020
Cory Booker & Kamala Harris Speech Transcript on George Floyd & Racial Injustice

Cory Booker & Kamala Harris Speech Transcript on George Floyd & Racial Injustice

African American Senators Cory Booker and Kamala Harris gave emotional speeches at a press conference on the George Floyd death, racial injustice & a new bill to combat it, and Donald Trump’s DC photo op. Read the full transcript here.

June 2, 2020
Donald Trump Phone Call Transcript With Governors After Protests: "You Have to Dominate" & "Most of You Are Weak"

Donald Trump Phone Call Transcript With Governors After Protests: "You Have to Dominate" & "Most of You Are Weak"

Donald Trump held a call with the US state governors where he said, “Most of you are weak.” Read the transcript from the call here.

June 1, 2020
Governor Tim Walz June 1 Press Conference Transcript on Minneapolis Protests

Governor Tim Walz June 1 Press Conference Transcript on Minneapolis Protests

After the 6th night of Minneapolis protests over the death of George Floyd, Minnesota Governor Tim Walz held a June 1 press conference. Read the full transcript here.

June 1, 2020

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