LESS REWATCHING. MORE UNDERSTANDING.
Your lecture.
The missing steps.
Finally connected.
Go beyond replaying a recording. Discover the knowledge it assumes, learn the steps you need, and find your way back—with the original evidence beside you.
One missing step. A whole new perspective.
A lecture uses ratios. Equivalent fractions might be the step you need first.
FROM RECORDING TO CONNECTION
A little clarity changes everything.
Keep what you know.
Build what comes next.
Find the missing step
See what was explained, assumed, or covered elsewhere in the recording.
Make it click
Try a short diagnostic. Get a focused explanation and worked example when you need one.
Keep moving forward
Try another question and resume your lecture. The original excerpts stay within reach.
BUILT FOR ACTIVE LEARNING
Every feature designed for active learning.
From raw lecture recordings to interactive learning,
backed by verifiable instructor receipts.
Multi-Source Ingestion
Bring your lectures in whatever format works best for you without tedious conversion.
- Direct file upload: MP4, WebM, MP3, WAV, M4A and FLAC; current limits appear in the upload workspace.
- YouTube video import: Paste public YouTube URLs with auto stream extraction.
- Direct media links: Ingest direct HTTPS audio and MP4 lecture streams.
- Live in-browser recording: Capture webcam and microphone with live audio meters.
Exact-Point Resume
Completed transcripts and eligible AI responses are reused where available.
- Staged processing: Ingestion → Transcription → Pedagogical compilation → Checkpoints.
- Stage-level retry: Retries reuse saved work; unfinished or invalid generation steps may repeat.
- Transcript & response caching: Completed transcripts and concept extractions persist on disk.
- Transparent diagnostics: Clear error messages with actionable resolution guidance.
Multi-Channel Alerts
Stay updated on compilation progress without staring at a progress bar.
- In-app live polling: Real-time progress percentage, stage cues, and animated states.
- Spoken voice cues: Web Audio synthesis announces when your lecture is ready.
- Amazon SES emails: Receive a completion email with direct link to your workspace.
- In-app error cues: Clear visual breakdown if media has unreadable audio or formatting errors.
Gap Detection & Q&A
Identify what the lecture assumed vs. what it explained, and test your readiness.
- Inferred prerequisites: Uncover hidden concept dependencies before tough topics.
- Diagnostic checkpoints: Interactive multiple-choice questions for each phase.
- Worked pedagogical feedback: Instant, step-by-step reasoning for all answers.
- Check status tracking: Checkpoint evidence updates from Unchecked to Passed.
Player & Transcripts
Listen, read, and cross-reference every concept with the original instructor's words.
- Verbatim synchronized transcript: Click any segment timestamp to seek playback.
- Read-along narration: Follow lesson text while listening, with browser speech highlighting where supported.
- Inspect lecture evidence: 1-click jump from concept cards to source timestamps.
- Amazon Polly narration: Switch between browser voice and studio voices (Joanna & Matthew).
Frictionless Workspace
Zero sign-up barrier, no password fatigue, and private learner workspaces.
- Anonymous learner sessions: Progress and answers saved safely in your browser.
- Public lecture library: Pre-compiled lectures in CS and Math ready to study.
- Interactive waveform: Dynamic scrubbing, frequency bars, and preview loops.
- No behavioral tracking: Your recordings are processed strictly for your study session.
PRODUCTION CLOUD ARCHITECTURE
Engineered with AWS & Modern AI Infrastructure
Blindspot Edu couples state-of-the-art speech models and pedagogical reasoning with a hardened AWS backend to support interactive learning.