Google's NotebookLM keeps quietly becoming the most useful AI app on my phone. Its latest trick, rolling out on Android and iOS: a built-in audio recorder that captures up to 60 minutes and turns the recording into a source you can chat with.
How it works
- Tap the mic icon on the homepage or in the Sources tab.
- Record straight from your phone — lectures, meetings, interviews, voice memos — with pause and resume, even in the background.
- When you stop, NotebookLM transcribes the audio and adds it as a source alongside your docs and links.
- From there, everything NotebookLM does applies: ask questions, get summaries, and every answer cites the exact part of the transcript it came from.
Why this is a bigger deal than it sounds
The feature, announced in Google's September 2026 back-to-school update, closes a loop. Before, getting spoken information into NotebookLM meant recording elsewhere, transcribing with another tool, and uploading text. Now the whole pipeline lives in one app — capture, transcribe, query.
For students, it turns a lecture into a study guide you can interrogate. For researchers and journalists, an interview becomes searchable the moment it ends. And because the transcript is a first-class source, the cited-answers model that makes NotebookLM trustworthy extends to audio too.
The catch, as ever: transcription quality depends on audio quality, and you'll want to check anything critical against the original recording. But as a workflow upgrade, it's hard to beat.
Full walkthrough at Rohan Tech Official: Gemini Notebook Can Now Record Audio on Your Phone: How It Works.
Adapted from the original — the complete guide lives at the link above.
Top comments (0)