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Review a recorded lecture without replaying every minute.

Find the main concepts in a spoken class, seminar or course recording. Read an organized summary, then listen to a shorter version when you want to revisit the explanation.

Technical beta. Processing your own source uses balance; review the estimate before confirming.

Source speech
3:46
Generated audio
0:47
Shorter listening time
79%
Detected concepts retained
5 / 5

A recording is a source. A useful summary helps you study it.

When several lectures are waiting, restarting each one can consume the time you meant to spend practising. MinuteMinds helps you review the argument and identify where the full explanation still matters.

Review concepts together

A structured summary keeps related ideas in context. Use it to orient your revision and identify the sections you need to study more carefully.

Use listening time for revision

Generate a short spoken summary in English or Spanish. Listen between study sessions, with the written result available when you need to check the wording.

Know when to return to the class

Concept coverage and quality signals are automated guidance. Worked examples, diagrams and mathematical notation may still require the original recording and your course materials.

How it works

  1. Pick one recorded class

    Upload an audio or video recording you have permission to process. A clear explanation is more useful than slides without narration.

  2. Set your revision language

    Choose English or Spanish and review the estimated balance usage. Confirm only when the source and output choices are correct.

  3. Use the result as a starting point

    Read the concepts, listen to the audio and make your own notes. Return to the original for evidence, solve the exercises and check anything used in assessed work.

One source. A result you can check.

This is a saved result from an original test talk about decision-making under limited attention. Play the source, compare the five ideas and listen to the generated summary. No account or upload is needed to explore it.

Decision quality when attention is limited

Original MP4 · 3:48 video, 3:46 speech · English

Read the original source transcript (English)
Decision quality when attention is limited People often assume that better decisions require more information. In practice, information competes for a limited attention budget. A founder can watch ten interviews about hiring, an investor can read twenty market reports, and a student can collect dozens of lectures, yet still fail to identify the few ideas that change the decision. Attention is not an unlimited container. Every additional source has an opportunity cost: the time spent consuming it cannot be used to test an assumption, compare alternatives, or rest. A useful system therefore does more than shorten content. It preserves decision-relevant evidence and makes the cost of further attention visible. The first distinction is between reversible and irreversible decisions. A reversible decision can be changed cheaply after new evidence appears. Choosing the order of two experiments or trying a meeting format for one week usually belongs in this group. An irreversible decision is expensive or impossible to undo, such as signing a long contract, publishing sensitive data, or closing a product line. Reversible decisions should move quickly with a modest evidence threshold. Irreversible decisions deserve more analysis, more independent evidence, and an explicit review of downside. Treating every choice as irreversible creates paralysis; treating every choice as reversible creates avoidable damage. Expected value provides a common language for comparing options. It combines the size of a possible outcome with the probability that the outcome occurs. A small chance of a very large loss can matter more than a high chance of a minor benefit. Expected value is not a promise and it is not a substitute for judgment. The probabilities may be uncertain and some outcomes cannot be reduced to money. Its role is to expose hidden assumptions. When two people disagree, they can ask whether they disagree about the possible outcomes, the probability estimates, the time horizon, or the value assigned to each result. Base rates protect the decision from a compelling but unrepresentative story. A team may hear about one company that doubled growth after a rebrand and assume the same action will work for them. The base rate asks what usually happens across comparable cases. Specific evidence still matters, especially when the current case differs in a meaningful way, but it should update a baseline rather than replace it. Starting from the outside view reduces overconfidence. The strongest analysis states both the base rate and the concrete reasons why this case might perform better or worse than the reference group. A pre-mortem reveals risks before commitment. The team imagines that the decision has failed six months in the future and asks what caused the failure. This framing makes it socially easier to mention concerns that sound disloyal during an enthusiastic planning session. A useful pre-mortem produces specific failure mechanisms, not vague pessimism. For each mechanism, the team identifies an early warning signal and a mitigation. If a product launch might fail because onboarding is confusing, the warning signal could be a low completion rate in a small pilot, and the mitigation could be a guided setup tested before public release.
Charged to balance for this test
USD 0.28

Historical charge for this source, not a flat rate or the provider's internal cost. New processing depends on duration, options and actual usage; the app shows an estimate first.

Generated audio

Saved English audio · 47 seconds · No new processing

The five ideas in the summary

  1. Attention limits make information costly

    Attention is scarce; extra information has opportunity costs, so preserve decision-relevant evidence and show marginal cost.

  2. Calibrate rigor to reversibility

    Cheap-to-reverse choices need modest evidence; irreversible ones need more analysis. Miscalibration causes paralysis or careless damage.

  3. Expected value guides uncertain comparisons

    Expected value weights outcomes by probability, highlights assumptions, but never guarantees results or replaces judgment.

  4. Base rates anchor case judgment

    Start with outside-view base rates to avoid overconfidence, then update them with evidence explaining why this case differs.

  5. Premortems surface actionable risks

    Premortems ask how a plan could fail, make dissent easier, and should yield specific mechanisms, warning signals, and mitigations.

Read the listening script (English)

Better decisions do not always come from more information, because attention is limited and every extra source has an opportunity cost. A useful system preserves decision-relevant evidence and makes the cost of more attention visible. Calibrate the amount of analysis to how reversible the choice is: move quickly with modest evidence when a decision is easy to undo, but use more analysis, more independent evidence, and an explicit look at downside when it is hard or impossible to reverse. Expected value helps compare uncertain options by weighing outcomes against probabilities, but it is not a promise or a substitute for judgment. Start with base rates, then update them with evidence about why this case differs. Finally, use a premortem to identify specific failure mechanisms, early warning signals, and mitigations.

The source and generated voice are in English. This is one MP4-upload test, not three separate tests or a full university lecture.

The automatic assessment found all five detected concepts in this result. It is not an independent accuracy guarantee. The 79% reduction compares source speech with generated audio; the MP4 includes a brief silent tail. Other sources can produce different results.

Before you upload

Does it read slides, PDFs or handwritten equations?

This workflow uses spoken audio from an uploaded recording. It does not read PDFs, slide images or the board. If an equation or diagram is not explained aloud, consult the original material.

Does it replace attending or studying the lecture?

No. It is a revision aid, not a substitute for the course, practice or your teacher's instructions. Summaries can omit nuance or contain errors; check important points against the source.

Is the demo a full university lecture?

No. It is a short, original test talk about making decisions under limited attention. The saved result shows the workflow and its measurements without implying that the same result applies to a whole course.

Can I keep summaries from several classes?

Completed results remain in your account library for later reading and listening. This page does not promise automatic cross-course analysis, flashcards, quizzes or live classroom recording.

Make your next recording easier to revisit.

Start with a source you can use. Check the estimate, then decide whether to process it.

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