See ideas beyond the timeline
Group explanations by hierarchy, cause, sequence, contrast, or example even when the speaker returns to the same concept at several points in the recording.
Audio study tools
Turn a study recording into a mind map you can explain
Spoken explanations unfold in time, which makes their hierarchy difficult to see during revision. Upload a permitted lecture, tutorial, or spoken summary to BrainDen, check the transcript and structured note, and open its mind map to organize the central idea, major relationships, examples, and conditions.
Free to start No card required Your material stays connected
Keep the recording available
Use the map for relationships and the checked transcript or audio for exact wording, qualifications, tone, and extended examples that do not fit in short nodes.
Restore missing visual context
Add descriptions from the slide, board, or demonstration whenever the speaker uses phrases that the microphone captures without their visual meaning.
Workflow fit
What this workflow starts with and produces
Supported starting material
- Audio files containing a lecture, tutorial, seminar explanation, or your own spoken study summary
- Recordings with clear speech, a coherent topic, and enough context to identify important relationships
- Material you have permission to record, upload, and use for personal study
Useful outputs
- A searchable transcript and editable note for checking the spoken source
- A mind map showing the verified central topic, branches, examples, and relationships
- A connected audio-based study item ready for course folders, links, quizzes, and flashcards
From source to active study
Recover the concept structure inside a recording
- 01
Choose one map-sized recording
Upload a coherent lesson or section, confirm permission, and split a long recording when it contains several unrelated objectives that need separate structures.
- 02
Check the transcript and hierarchy
Correct names, terminology, numbers, and sequence. Mark whether each idea is a cause, stage, contrast, example, or condition before relying on the map.
- 03
Explain each branch aloud
Follow the map from the central topic, state why every connection belongs, and return to the recording when a node is vague or missing an important qualification.
A concrete example
Example: mapping a recorded ecology lecture
A 47-minute lecture connecting energy flow, trophic levels, productivity, nutrient cycles, and two ecosystem examples shown on slides.
A useful result could include
- A central ecosystem-function node with energy-flow and nutrient-cycle branches
- Sub-branches separating trophic transfer from primary and secondary productivity
- A checked note marking which examples require the original slide diagrams for complete interpretation
Generated material is a study aid. Review important terminology, notation, and claims against your source.
Make the result better
Use AI as the beginning of your study process
BrainDen removes repetitive setup work. Your judgement, course context, and retrieval practice are what turn the result into learning.
Map meaning instead of chronology
A speaker may introduce, leave, and revisit an idea. Combine those passages under one concept rather than copying the recording order into separate branches.
Use precise relationship labels
When two nodes connect, identify whether one causes, enables, limits, contrasts with, or exemplifies the other instead of relying on proximity alone.
Rebuild a branch from memory
Close the map, sketch one branch, and explain its links before checking the result. Use any difference to guide the next transcript or audio review.
Questions and answers
Frequently asked questions
Can BrainDen turn an audio recording into a mind map?
Yes. Upload a supported audio file, review the transcript and structured note, and open its connected mind map after correcting key relationships.
Does the mind map include everything in the audio?
The map is a simplified relationship view. Keep the transcript, note, and original audio available for fuller wording, examples, and qualifications.
How should I handle slides mentioned in the recording?
Add the visual context from your permitted course material and verify graph, diagram, equation, and label details before studying the map.
Can I link the audio map to other notes?
Yes. File the source note in its course folder and link it to related slides, readings, examples, or prerequisite topics in BrainDen.
Continue in your connected library
BrainDen features for the next step
Connect related ideas
Link notes and follow the backlinks
Folders tell you where a note belongs. Links show how its ideas relate to the rest of what you know. Connect a concept to another lecture, reading, or course and use backlinks to find the relationship from either side.
Explore this featureOrganize your libraryUse nested folders for courses, modules, and topics
A growing study library should match the way your course is actually structured. Build folders inside folders so lectures, readings, assignments, and revision topics stay easy to find.
Explore this featureKeep building your study system
Related study workflows
Use the material you already have.
Start with a focused lecture, tutorial, or study audio file, create a connected note, and choose the study tools that help you understand and remember it.