Video to text converter for lectures, webinars and tutorials
A 90-minute lecture or webinar is hard to search and slow to rewatch. Send the video to your todo.is agent: it transcribes what was said, reads text shown on the slides, adds timestamps, and gives you notes you can study from, plus a subtitle file if you want one.
The prompt
- Turn the attached video into text: [ATTACH THE VIDEO]. It is [WHAT IT IS]. Transcribe everything that is said with a timestamp every paragraph, and include text from the slides or screen as (Slide: ...) where it adds something. Then write [NOTES STYLE]. Also make an SRT subtitle file. Deliver [FORMAT] and tell me the 3 parts most worth rewatching, with times.
What to change
- [ATTACH THE VIDEO]: Attach the video (MP4, MOV, WebM and more, up to 50 MB). For a longer one, send just the audio or ask your agent to compress it first.
- [WHAT IT IS]: E.g. "a university lecture on cell biology", "a sales webinar" or "a software tutorial".
- [NOTES STYLE]: E.g. "study notes with headings and key terms", "a 1-page summary" or "step-by-step instructions".
- [FORMAT]: E.g. "a Word file", "Markdown" or "PDF".
Example result
- Lecture 7: Cell signalling
- Video: 74 min · transcript 11,300 words · 31 slides read · SRT included
- Study notes
- 1. What a signal is (00:02 to 12:30)
- • Cells talk using ligands: hormones, growth factors and neurotransmitters
- • A ligand binds a receptor, which changes shape and passes the message inside
- • [Slide 4] Four types of signalling: autocrine, paracrine, endocrine, direct contact
- 2. Receptor types (12:30 to 31:15)
- • G protein-coupled receptors (GPCRs): the largest family; activate G proteins that switch on second messengers
- • Receptor tyrosine kinases: pair up and phosphorylate each other when a ligand binds
- • Ion channel receptors: open to let ions through, very fast (milliseconds)
- 3. Second messengers (31:15 to 52:40)
- • cAMP made by adenylyl cyclase; activates protein kinase A
- • Calcium ions released from the ER
- • The lecturer stressed amplification: one ligand can trigger thousands of responses (39:10)
- 4. Switching signals off (52:40 to 70:05)
- • Phosphatases remove phosphates; GTP is hydrolysed; receptors are taken into the cell
- Key terms
- Ligand, receptor, GPCR, kinase, phosphorylation, second messenger, cAMP, amplification, desensitization
- Worth rewatching
- • 24:50 the animated GPCR diagram
- • 39:10 the amplification worked example
- • 68:30 "this will be on the exam" moment about signal termination
- Also delivered
- • Full transcript with timestamps and slide text
- • Lecture_07.srt, subtitles timed to the video
How to do it with todo.is
- Copy the prompt and describe the video, the notes you want and the format.
- Attach the video in todo.is, or send it to your agent on WhatsApp, Telegram or Slack.
- Your agent transcribes the speech, reads the slides and writes your notes and subtitles.
- Ask follow-ups like "make 20 flashcards from this" or "quiz me on section 3".
Tips for a better result
- Slide text often holds formulas and definitions the speaker does not say out loud. Ask for it to be included.
- For long videos, sending just the audio is quicker; ask for slide reading only if the slides matter.
- Ask for "worth rewatching" times so you only replay the hard parts.
- Only transcribe videos you have permission to use, such as your own recordings or course material for your personal study.
video to text converter: FAQ
- Can I convert a video to text without the audio being perfect? Yes, but noise and echo reduce accuracy. Your agent marks unclear parts with the time so you can check them.
- Does it read text shown on screen? Yes. Your agent can look at frames of the video and include slide or screen text in the transcript.
- Can I get subtitles from a video? Yes. Ask for an SRT file, and your agent can also burn the subtitles into a copy of the video.
- What if my video is bigger than 50 MB? Send the audio only, a compressed copy, or split it into parts. Your agent can tell you how.
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