6 sessions · 3 speakers · every answer is a clip
Ask your recordings.
Watch the answer.
Every lecture and talk in this library — searchable by what was said, answerable in plain language, with every answer a clip of the moment it came from.
How it works
- 01
Upload a recording
Cloudinary transcribes it word by word, chapters it with AI and streams it adaptively. No editing.
- 02
Ask in plain language
Answers come only from your library, and every claim is a clip of the moment it was said.
- 03
Share the moment
One tap makes a vertical, speaker-tracked, subtitled clip, built by Cloudinary as a URL.
Library · 6 sessions
2:35From AdaGrad to RMSProp
Prof. Prabir Kumar Biswas, IIT Kharagpur
2:55Gradient Descent Variants and Momentum
IIT Madras (NPTEL)
2:40Learning Rate Decay
IIT Madras (NPTEL)
2:49Underfitting and Overfitting in Practice
NPTEL: Practical ML with TensorFlow
2:52The Bias–Variance Trade-off
IIT Madras (NPTEL)
2:45Overfitting, Underfitting and Regularization
Prof. Prabir Kumar Biswas, IIT Kharagpur
Who it's for
Built for places that record more than anyone rewatches
Colleges & departments
Revision the night before the exam
Students ask a question and get the moment their own professor explained it, not a generic answer from the internet.
Coaching institutes
Doubt-solving at 2 a.m.
Every class becomes an askable archive in English or Hindi. A retention tool parents can see and a sales tool for new batches.
Clubs & communities
Every talk, findable forever
Workshops, guest talks and fests turn into a library that grows with each event, and Moments carry it onto WhatsApp.
Why Pravaha
ChatGPT gives you text. Pravaha gives you the moment your professor said it.
| Capability | Pravaha | General AI chatbot | Typical lecture-capture platform |
|---|---|---|---|
| Answers come only from your recordings | Yes, and it refuses otherwise | No, it answers from the open web | Varies |
| Every claim plays the source moment | Yes, as a clip | No | Timestamp links |
| One video stitched from several speakers | Answer Reels | No | No |
| Vertical, subtitled shorts for sharing | One tap | No | Separate editing |
| Ask in Hindi about English lectures | Yes | Yes, without your sources | Rare |
| What learners couldn't find (gaps) | Knowledge-gap insights | No | View analytics |
Built on Cloudinary
Cloudinary does the media. Pravaha does the knowledge.
Every video, clip, short, reel, subtitle and thumbnail is delivered by Cloudinary, mostly as a URL. No render servers of our own.
Upload Widget
Signed browser uploads
AI transcription
Word-timed transcripts
AI chaptering
Chapters on the seek bar
Adaptive streaming
HLS for slow mobile data
g_auto
Speaker-tracking crops
fl_splice
Answer Reels from many clips
Text overlays
Burned-in subtitles and labels
Webhooks
Ready without polling
Translation
Hindi subtitle tracks
f_auto, q_auto
Right format and size per device
Trust
Built to pass an institute's review
What IT and legal teams ask before a pilot, answered in the product rather than in a sales call.
Grounded, or it says so
Answers come only from your recordings. The server rejects any citation the model wasn't given, and Pravaha refuses rather than guess.
No learner accounts
Students never sign up. Questions are stored without identity; saved moments and history stay on their own device.
Your recordings stay yours
Organizers confirm rights before upload, sessions start unlisted, and nothing is public until you publish it.
Secure by default
Signed uploads only, verified webhooks, rate limits, security headers, and IPs kept only as salted hashes for a day.
Details: Privacy · Terms · Security model
Pricing
Free for clubs. Simple for institutes.
Planned pricing for launch. Media and AI costs scale with use, so plans stay predictable.
Club
Student clubs and departments starting out
Free
- Up to 10 hours of recordings
- Watch, Find, Ask and Moments
- Shareable answers
- Community support
- Most popular
Institute
Coaching institutes and colleges
₹4,999/month
- Up to 200 hours of recordings
- Study Packs and quizzes
- Knowledge-gap insights
- Hindi subtitles and Hindi Ask
- Priority support
Enterprise
Universities and companies
Custom
- Unlimited hours
- Single sign-on (planned)
- LMS integration (planned)
- Dedicated success manager
FAQ
Questions people ask
Does Pravaha make things up?
It answers only from the transcript excerpts it retrieved, and the server rejects any citation that wasn't among them. If your library doesn't cover a question, Pravaha says so instead of guessing.
Do learners need an account?
No. Learners watch, search and ask without signing up; saved moments and history stay on their own device. Only organizers who upload recordings sign in.
What do I need to upload?
Any recorded lecture or talk: a phone video is fine. Cloudinary transcribes it, chapters it and makes it streamable automatically. There is no editing step. You can try it now with the first minute of any video, no account needed.
Which languages work?
Recordings are transcribed in their own language. Learners can ask in Hindi about English lectures and get a Hindi answer with the English clips, and sessions can carry Hindi subtitles.
Who owns the recordings?
You do. Organizers confirm they have the right to publish each recording, sessions start unlisted, and nothing is public until you publish it.
Your recordings already hold the answers.
Ask one now, or upload a short video and ask it in about a minute.