LectureSift

LECTURE VIDEO AND AUDIO

Turn a lecture into text. Summarize it and test yourself.

Finding one definition in a long recording can interrupt a study session. Turn an uploaded lecture video or audio file into a pack with a transcript, a topic summary and questions you can practise with.

Explore the example first ↓

FROM SOURCE TO STUDY NOTE

A transcript and a summary serve different purposes

The text and answers below are teaching examples, not the result of a live processing job.

Example lecture passage

We give an object with a mass of 2 kilograms an acceleration of 3 metres per second squared. To find the net force, use F equals m times a: 2 times 3 is 6 newtons. Remember that this calculation gives the net force acting on the object.

What to look for in a transcript

The spoken sequence: the given values and the lecturer's emphasis on net force. If a term was misheard, you have text to compare with the recording.

What to look for in a summary

F = m × a. With m = 2 kg and a = 3 m/s², the net force is 6 N. Keep the units alongside mass, acceleration and force.

What is the net force if the mass becomes 4 kg and acceleration stays the same?

F = 4 × 3 = 12 N. The condition that acceleration stays the same matters: holding the other value constant is what allows this comparison.

From a recording to a study pack

  1. Upload your recording

    Add a video or audio file. If a lecture has several parts, arrange the files in the order they were taught.

  2. Choose your outputs

    Set transcript, summary, quiz and flashcard options. For videos containing a presentation, you can also select slide images.

  3. Study with the source

    Listen again to uncertain terms and numbers. Review the topic through its summary, then attempt the questions before reading their answers.

Audio recordings and presentation videos

An audio study pack starts with the spoken content. A video containing a presentation can also supply actual slide images; an audio-only file cannot supply slide pictures. A visual change in a video is not necessarily a lecture slide.

Timestamps and recording quality

The fast default uses approximate audio-chunk start times. You can select precise timestamps separately; this can increase processing time. Noise, overlapping voices and specialist terms may cause transcription errors, so replay important passages.

Frequently asked questions

Can I combine lecture video and audio files?

You can arrange video and audio sources in lesson order. Create separate study packs for document sources and media sources rather than mixing them in one job.

Can I paste a YouTube link?

This workflow uses file uploads. Select a video or audio file you are entitled to use from your device; processing a YouTube link is not offered in this workflow.

How is a transcript different from a summary?

A transcript helps you follow the spoken content as text. A summary organizes its main concepts and relationships into a shorter study structure. Check missing or uncertain information against the recording.

Can I get notes in another language?

Yes. Source and output languages are separate selections. Choose from 13 supported output languages and set transcript translation independently.

Bring your recording into your next review.

Upload the lecture, choose the outputs you need and check the finished pack against its source. See Plans for current usage allowances.

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