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NotebookLM adds audio and YouTube support, plus easier sharing of Audio Overviews
Raiza Martin, Google Blog, 2024
Read the originalRead on October 17, 2026
- What it is
- Google's announcement, dated September 26, 2024, that NotebookLM accepts public YouTube URLs and audio files as sources. It describes how people were using the new source types.
- How much weight it carries
- Google's own product announcement, so it is reliable on what NotebookLM accepted at launch. It is a 2024 post and gives no current size or format limits.
Facts taken from this source
- Google announced in September 2024 that users could add public YouTube URLs and audio files to a NotebookLM notebook.
“You can now add public YouTube URLs and audio files to your notebook for an even deeper understanding of your sources.” (Opening paragraph)
- Google's 2024 announcement says that when you add audio recordings to NotebookLM, it can search across the transcribed conversations to find specific information.
“adding audio recordings and having NotebookLM search across the transcribed conversations to locate specific information” (New source types section)
- Google's launch post says that when a YouTube video is added to NotebookLM, it summarizes key concepts and links its citations to the video's transcript.
“When you upload YouTube videos to NotebookLM, it summarizes key concepts and allows for in-depth exploration through inline citations linked directly to the video’s transcript.” (Analyzing videos and lectures)