A revolution in summarization: Meet the new NotebookLM audio formats (Brief, Critique, Debate)

Sometimes, the sheer volume of articles, reports, and sources we have to read can be overwhelming. Hello to all readers of this article! If you’re a student, researcher, or writer like me, you’ve probably faced this challenge. The good news is that Google has an amazing tool to solve this problem. Today, we’re going to discuss the latest update to the NotebookLM tool, which has revolutionized the way we interact with content by introducing new NotebookLM audio formats.
This AI tool is no longer just a simple research assistant; it has evolved into a personal podcast production studio that can transform your sources into engaging audio discussions, concise summaries, or expert reviews. Let’s explore these new features and examine how they can benefit us.

Introducing NotebookLM Audio Formats: Four Approaches to One Goal

Previously, NotebookLM featured an audio format called “Deep Dive,” where two AI hosts would conduct an in-depth, analytical conversation about your content. However, Google has added three new and useful formats to the suite, catering to the diverse needs of its users. This means you can now choose the best way to summarize Google audio based on your needs.
These four formats are each designed for a specific scenario:
  • Brief: This format is great when you’re short on time and just need the key points. An AI presenter will provide a quick and helpful summary of your sources in about 1-3 minutes.
  • Critique: This format is a godsend for writers and researchers! One or two AI hosts will review your content (e.g., a draft article) and offer suggestions for improvement. This feature is a great tool for AI content analysis.
  • Debate: If you want to see a topic from different angles, this is the format for you. Two AI hosts, each with a different perspective, will debate and debate your sources, helping you gain a deeper understanding of different aspects of the topic.
  • Deep Dive: This is the original and popular format, where two hosts go into the details of your content in a friendly, in-depth conversation.

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Meet the new NotebookLM audio formats

Audio Format Comparison Table

To better understand the differences, let’s take a look at this table:
Meet the new NotebookLM audio formats

What are these new formats for?

You might be wondering what this variety is for? This Google AI tool has a wide range of uses by offering different options:
  • Students and researchers: You can quickly hear a summary of several scientific articles (Brief), hear the strengths and weaknesses of your research from an AI critic (Critique), or understand the pros and cons of a theory in a debate format (Debate).
  • Writers and content creators: Before publishing a blog post or article, upload it to the Critique section to receive valuable feedback to improve your text.
  • Professionals and managers: Turn long and complex reports into a short audio summary to get up to speed in the shortest possible time.
These features have transformed NotebookLM from a mere summary tool into an intelligent companion and advisor that can help us in our intellectual and creative processes.

How to Use the New Audio Formats?

Using these features is very simple. Just follow these steps:
  • Log in to your NotebookLM account and add your desired sources (PDF file, copied text, website link, etc.).
  • At the top of the page, click on the Audio Overview card.
  • Click on the pencil (edit) icon to open the options.
  • From the menu that opens, select one of the four formats (Brief, Critique, Debate, Deep Dive).
  • If you want, you can also adjust the language, voice, and length of the summary.
  • Finally, click the Generate button to create your audio file. You can listen to it online or download it for offline use.

Meet the new NotebookLM audio formats

Why is this update important for Iranian users?

One of the best news is that these updates come with support for over 80 languages, including Persian. This means you can feed your Persian resources to NotebookLM and get a high-quality Google audio summary in Persian. This feature makes Google’s AI tool a very valuable option for Iranian students, professors, and professionals.
Imagine being able to listen to an intelligent debate between two opposing viewpoints or hear a detailed summary of a book on your way to university or work instead of reading several long articles for your thesis. This update is not just a new feature, but a way to save time and increase productivity.
Ultimately, this update demonstrates that Google is particularly focused on transforming its tools into intelligent and personalized assistants. NotebookLM audio formats are a big step in this direction, making the research and learning experience more engaging and efficient for all of us. Which format do you prefer? We look forward to reading your thoughts in the comments section!

FAQ

1. What are the new audio formats in NotebookLM?
NotebookLM now offers four audio formats:

  • Brief: A 1–3 minute summary highlighting key points.
  • Critique: Constructive feedback and suggestions for improvement.
  • Debate: A discussion presenting multiple perspectives on a topic.
  • Deep Dive: An in-depth exploration of the content.

2. How do I use these audio formats?
To use these formats:

  1. Log in to your NotebookLM account.
  2. Upload your desired content (e.g., PDF, text, website).
  3. Click on the “Audio Overview” card.
  4. Select the pencil (edit) icon to open options.
  5. Choose one of the four formats.
  6. Adjust language, voice, and length settings as needed.
  7. Click “Generate” to create your audio file.

Two AI hosts in a podcast-style setup debating opposite sides of a topic, shown with speech bubbles or split-screen design. Engaging, clear, realistic but modern look.

4. Can I use audio files as sources in NotebookLM?
Yes, you can upload your own audio files. Supported formats include MP3, MP4, M4A, AIFF, AAC, CAF, AMR, WAV, and Opus. Note that unsupported formats, such as FLAC, OGG, and WebM, must be converted before importing.

5. Are these audio summaries available offline?
Yes, once generated, you can download the audio summaries and listen to them offline, making it convenient for on-the-go learning.

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