
Andy Walker / Android Authority
TL;DR
- NotebookLM is including new Audio Overview codecs: Transient, Critique, and Debate.
- Every format modifications how two AI hosts current your notes, from summaries to arguments.
- The replace is rolling out now.
NotebookLM has rapidly turn out to be a favourite of ours. We’ve used it to chop by way of the whole lot from house contracts to automotive manuals, and it’s persistently confirmed to be certainly one of Google’s most sensible AI instruments. But it surely’s additionally bought a artistic aspect, particularly with its podcast-style Audio Overviews. Coinciding with its big courtroom victory, Google simply added some additional aptitude to make that function much more versatile.
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NotebookLM’s official account introduced on X that NotebookLM Audio Overviews now are available in 4 distinct codecs: Deep Dive, Transient, Critique, and Debate. A demo video reveals the desktop app switching between every format, with the AI voices shifting tone accordingly. The replace is rolling out now.

Every new format brings one thing totally different to the desk. Deep Dive is the long-form choice we have been already accustomed to, with hosts unpacking your materials at size. Transient squeezes it into a fast one- or two-minute abstract, Critique frames it as expert-style suggestions, and Debate levels a back-and-forth to focus on competing viewpoints.
This replace follows Google’s current push to develop NotebookLM Audio and Video Overview capabilities. They have been lately upgraded to help greater than 80 non-English languages, making them simply as detailed because the English variations. Google has clearly realized that it’s onto factor with the device and is set to fine-tune it.
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