Audio Summarizer: Turn a Recording into a Mind Map
Upload a recording and get the transcript’s key points as an editable mind map
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Every input has its own tool page: see all mind map tools and their free limits
How to summarize an audio file in 4 steps
Upload the Recording
Drop in an MP3, M4A, WAV, AAC, FLAC, OGG, WMA, or OPUS file up to 20 MB
AI Transcribes the Speech
Check the credit estimate before generating. Pro or Max is required; final billing uses the recording’s measured duration
Key Points Become a Map
Speech is transcribed and mapped into branches. Compare important names, numbers and decisions with the recording
Edit, Export, Share
Correct the draft, add or delete nodes on your paid plan, and save before exporting Markdown, PNG, SVG or XMind
Why use MindLM as your audio summarizer
8 Audio Formats
MP3, M4A, WAV, AAC, FLAC, OGG, WMA, and OPUS. Video files are not accepted.
Speech In, Structure Out
Speech is transcribed before the map is generated. Transcription and summarization can both miss details; replay the source to check important points.
Clear, Per-Minute Pricing
1.5 credits to start plus 1.5 credits per minute, rounded up to the minute. A 20-minute recording costs 31.5 credits.
Editable and Exportable
Rename a misheard name or remove an unwanted branch, then save and export. Markdown opens as a text outline in your notes app; it does not synchronize back to MindLM.
What people summarize with audio to mind map
Examples of tasks you can use this input for.
Turn a lecture recording into study notes
Upload a lecture recording and organize its speech into topics. Check technical terms against the recording and course materials before using the map for revision.
Recap a meeting you only half heard
Generate a draft from the recording, then verify decisions, owners and deadlines against the audio before sharing. Missing or ambiguous assignments still need confirmation.
Organize a rambling voice memo
Upload the memo, check that the branches reflect what you meant, and rename or edit them. Save and export Markdown to continue writing in your notes app.
What the audio summarizer does
A recording is the least searchable thing you own. An hour-long lecture or a meeting you only half followed sits in your files as a single blob, and the only way back into it is to listen again.
MindLM transcribes the audio first, then summarizes the transcript as a mind map. The topics that came up become the first-level branches, and the arguments, decisions, and examples sit underneath. You end up with an outline of what was said, one you can skim in a minute and keep editing.
Supported formats
MP3, M4A, WAV, AAC, FLAC, OGG, WMA, and OPUS files are accepted. That covers phone voice memos, Zoom and Teams audio recordings, and recorder apps. Video files such as MP4 or WEBM are not accepted; export the audio first.
How long a recording can be
The limit is the file size, 20 MB, so how many minutes fit depends on the bitrate:
| Bitrate | Typical source | Fits in 20 MB |
|---|---|---|
| 128 kbps | Music-quality MP3 | about 20 minutes |
| 64 kbps | Voice memo apps, podcasts | about 40 minutes |
| 32 kbps, mono | Speech-only export | about 80 minutes |
Speech stays clear at low bitrates, so for a long lecture, export it as mono at 32–64 kbps before uploading.
What it costs
Audio upload is part of the Pro and Max plans. Each recording costs 1.5 credits to start plus 1.5 credits per minute, rounded up to the next minute, and the charge is based on the length MindLM measures from the file:
| Recording | Credits |
|---|---|
| 5-minute voice memo | 9 |
| 20-minute interview | 31.5 |
| 40-minute lecture | 61.5 |
Pro includes 200 credits a month and Max includes 600.
Audio summarizer vs podcast summarizer
The podcast summarizer works differently: you search a public show, pick an episode, and MindLM maps it from the episode's show notes without transcribing anything. That's quicker when a show publishes detailed notes. Use the audio summarizer for your own recordings, or for any episode whose notes are too thin to summarize, by downloading the file and uploading it here.
Export formats
- PNG for slides and notes
- SVG for a vector that stays sharp at any size
- Markdown for Notion, Obsidian, or any outliner
- XMind for opening and editing further in XMind
- Share link for a read-only page you can send to anyone
There is no direct PDF export yet.
Audio summarizer FAQ
Which audio formats are supported?
MP3, M4A, WAV, AAC, FLAC, OGG, WMA, and OPUS. Video files such as MP4 or WEBM are not accepted; export the audio first. The file must be 20 MB or smaller.
How long can a recording be?
Start with the 20 MB upload limit. How much audio fits depends on its format and bitrate, so file size alone does not guarantee a particular recording length or successful transcription. For a large file, split it into labeled parts or compress it, then check that speech remains intelligible. Processing time varies.
Is the audio summarizer free?
Audio upload requires Pro or Max and enough credits. If you already have a transcript or your own notes, paste that text into Text to Mind Map on Free. Free includes 10 signup credits, 1 daily login credit and up to 3 credit-funded generations a day. Renaming nodes and Markdown export are included; adding or deleting nodes requires Pro or Max.
How many credits does a recording cost?
1.5 credits to start plus 1.5 per minute, with partial minutes rounded up. Ten minutes costs 16.5 credits; ten minutes and one second costs 18. The upload page shows an estimate and final billing uses the measured duration. Pro includes 200 credits per month and Max 600.
How is this different from the podcast summarizer?
The podcast summarizer searches public shows and maps an episode from its show notes, with no transcription. The audio summarizer transcribes a file you upload, so use it for your own recordings or for episodes whose notes are too short.
Templates that use this tool
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Ready to Get Started?
Upload a recording and get the transcript’s key points as an editable mind map. Available on Pro and Max.
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