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Documentation Index

Fetch the complete documentation index at: https://google-40.mintlify.app/llms.txt

Use this file to discover all available pages before exploring further.

Audio Overview converts your notebook’s sources into a podcast-style conversation between two AI hosts. The hosts discuss the main themes and ideas from your material in a back-and-forth format, making it easier to absorb information when reading isn’t practical or when you want a quick orientation before going deeper into the sources themselves.

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Use cases

Audio Overview is well-suited for:
  • Commuting or multitasking — listen to your material while on the go
  • Getting oriented — hear a high-level discussion before reading your sources in full
  • Sharing with teammates — send the audio file to colleagues who need a quick overview of the material

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Generate an Audio Overview

1

Open a notebook with sources

Make sure your notebook has at least one source added. Audio Overview draws on all sources currently in your notebook, so add everything you want covered before generating.
2

Open the Notebook Guide panel

Click the Notebook Guide button or tab on the right side of your notebook.
3

Click Generate

Click the Audio Overview button, then click Generate. Processing takes approximately 1–3 minutes depending on the number and length of your sources.
4

Play the overview

When the audio is ready, click Play to start listening directly in the browser.
Add all your sources before generating. Audio Overview is created from everything in your notebook at the time you click Generate—if you add more sources later, regenerate to include them.

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Listening controls

Use the playback controls in the Audio Overview panel to:
  • Play / Pause — start or stop the audio
  • Scrub the timeline — click or drag on the progress bar to jump to a specific point in the conversation

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Download the audio file

Click the Download button to save the audio file to your device. You can then share it, play it in any audio app, or archive it for later.

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Regenerate

Click Generate again to create a new version of the Audio Overview. The previous version is replaced—there is no way to retrieve an older generation after you regenerate.

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Language

Audio Overview is generated in the language of your sources. If your sources are in English, the hosts speak English. Notebooks with mixed-language sources may produce an overview in the predominant language.
Audio Overview covers the main themes and ideas from your sources. It does not read every word of every source—some details, data, or passages may not be mentioned.
Do not rely on Audio Overview as a substitute for reading primary sources in critical, professional, or academic contexts. Listen to it as an orientation tool, then verify key information by reading the original source material.

Notebook Guide

Generate summaries, FAQs, study guides, and more from your sources.

Adding sources

Learn what you can add to a notebook and how.

Research workflow

A guide to using NotebookLM throughout a research project.

Sharing notebooks

Share your notebook or its outputs with others.