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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
Transcript: Trump Impeachment Trial Tuesday February 4, 2020 Key Moments

Transcript: Trump Impeachment Trial Tuesday February 4, 2020 Key Moments

The Donald Trump Impeachment Trial continued on February 4, 2020, moving in the direction of an acquittal of the president’s actions. Senators spent the day explaining their votes. Read the transcripts of the key moments from today’s trial.

February 4, 2020
Democratic Response to State of the Union Transcript: Gretchen Whitmer Speech

Democratic Response to State of the Union Transcript: Gretchen Whitmer Speech

Michigan governor Gretchen Whitmer delivered the Democratic response to Donald Trump’s State of the Union Address. Read the full transcript of her speech right here on Rev.com.

February 4, 2020
Donald Trump State of the Union Speech: 2/4/20

Donald Trump State of the Union Speech: 2/4/20

Donald Trump gave his State of the Union Address on February 4, 2020. Trump highlighted things like the economy and conservative policies he supports. Read the full transcript of his speech right here.

February 4, 2020
Transcript: Trump Impeachment Trial Monday, February 3, 2020 Key Moments

Transcript: Trump Impeachment Trial Monday, February 3, 2020 Key Moments

The Donald Trump Impeachment Trial continued on Monday, February 3, 2020 after the Senate voted to not call witnesses. Read the transcript of the key moments here.

February 3, 2020
DonaldTrump Iowa Rally Transcript: Trump Holds Rally in Des Moines, Iowa

DonaldTrump Iowa Rally Transcript: Trump Holds Rally in Des Moines, Iowa

Donald Trump held a rally on January 30, 2020, in Des Moines, Iowa. The rally was held during his impeachment trial in the Senate. Read the full transcript right here.

January 30, 2020
Alan Dershowitz Defense Argument Transcript: Trump Impeachment Trial January 27

Alan Dershowitz Defense Argument Transcript: Trump Impeachment Trial January 27

Lawyer Alan Dershowitz, who was involved in famous cases like the OJ Simpson Trial, made his first appearance at the Donald Trump Impeachment Trial. He presented a defense argument for just over an hour. Read the full transcript right here on Rev.com.

January 28, 2020

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