Lecture Transcription: A Recording You Can Actually Study From
Upload a recorded lecture, video or audio, and get a timestamped transcript you can search, skim and correct. Download TXT for study notes, or SRT to caption the lecture video for class.
Lecture Transcription: A Recording You Can Actually Study From Features
EchoWave's transcription tools are used by students, lecturers and course teams worldwide
From lecture to revision
A transcript is searchable. A three-hour recording is not.
Lecture transcription in EchoWave starts with the recording file: upload the video or the audio, a lecture-capture export, a screen recording or a phone clip from the back of the hall, and the AI transcribes the whole session with word-level timing. Every word is stamped to its moment, so clicking a cue jumps playback straight there, and each row stays editable for the technical terms, names and formulae an automatic transcript will not always spell right. Export TXT and you have searchable study notes; export SRT or VTT and you have captions for the lecture video. Video lectures run through the same engine as video to text and audio recordings through audio to text; for work calls rather than classes, meeting transcription frames the same tool around minutes.
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TXT, SRT, VTT
Plain-text study notes, or subtitle files to caption the lecture video
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Word-level
Every word is timed, so clicking a cue jumps playback straight to that moment
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50+ languages
Auto-detects the spoken language, with a manual override for non-English lectures
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Video or audio
Transcribe a lecture-capture video or a plain voice recording through the same flow
What you get
Everything between the recording and revision
Transcription is the first step; the tools around it turn a lecture into notes you revise from.
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Upload Any Lecture Recording
The lecture-capture video, a screen recording of the slides, or a plain audio file from a phone on the desk. If it plays as video or audio, EchoWave can transcribe it, no special export needed.
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Word-Timed Transcription
The AI transcribes the full lecture and stamps every word with its position in the recording, across 50+ languages with automatic detection. That timing is what links the text back to the audio.
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Click a Cue to Jump
Every transcript row has its own play button. A formula or a name looks wrong? Click the cue, hear exactly what was said, and jump-check it against the recording without scrubbing a timeline.
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Fix Technical Terms in Place
Lectures are full of jargon, drug names, equations read aloud and unusual surnames an automatic transcript can mangle. Each cue is an editable row, so you correct the term once and it flows into every export.
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Captions for the Whole Class
Export SRT or VTT and the recorded lecture gains captions for deaf and hard-of-hearing students, note-takers and anyone revising with the sound off. Same corrected text, formatted like an SRT generator output.
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TXT Notes You Can Search
Export the transcript as plain text and it drops into any notes doc or study set, searchable with find. Sharing the recording too? The same transcript drives the silence remover to cut dead air first.
How it works
How to transcribe a lecture
Four steps from a recorded lecture to study notes or captions.
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Upload the Lecture Recording
Drag the lecture file into the EchoWave editor: the capture video, a screen recording or a phone audio clip. Video and audio-only recordings both transcribe.
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Auto-Transcribe the Lecture
Click auto-transcribe. The AI processes the full recording and returns timestamped rows with word-level timing, in the order the lecturer spoke.
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Correct Terms and Jump-Check by Cue
Play any row with one click to hear the moment, fix jargon, names and formulae in place, and confirm a passage against the audio before you trust it.
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Export TXT Notes or SRT Captions
Download plain text for study notes you can search and skim, or SRT and VTT to caption the lecture video for the class. Same corrected transcript, either format.
Who uses it
Wherever lectures get recorded
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University Students
Turn a three-hour lecture block into notes you skim the night before an exam instead of rewatching the whole recording.
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Lecturers and Professors
Publish the recording with captions so every student can follow, including those who read faster than they listen.
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Disability and Access Services
Produce accurate SRT captions and transcripts for deaf and hard-of-hearing students in-house, without outsourcing every single recording.
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Online Course Creators
Give each video lesson a searchable transcript and captions, so learners jump straight to the exact concept they need.
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Exchange and Language Students
Transcribe a lecture delivered in another language, override the detected language when needed, and read it back at your own pace.
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Researchers and Note-Takers
Seminar and guest-talk recordings become quotable text with timestamps, ready to cite in your literature notes.
Stop rewatching lectures
Upload the recording, correct the transcript, export TXT notes or SRT captions. Free to start.
How creators use EchoWave in real projects
About the EchoWave team
EchoWave is a browser-based video and audio editor built by Lemon Vault LLC since 2018. The people who build the editor write these guides and test every step in the production app before publishing.
Lecture transcription FAQ
How do I transcribe a lecture?
Upload the recording to EchoWave and click auto-transcribe. Use whatever you have: the lecture-capture video, a screen recording of the slides, or an audio file from a phone on the desk. The AI transcribes the whole session with word-level timing and lays it out as timestamped rows, each with its own play button. Correct any technical terms in place, then download TXT for study notes, or SRT and VTT to caption the lecture video for the class. Video and audio recordings both run through the same flow, so a plain voice memo is fine when there is no video.
Can I study from the transcript instead of rewatching?
That is the whole point of it. A transcript is searchable and skimmable in a way a recording is not: open the TXT in any doc, use find to jump to a keyword, and read the ten minutes that matter instead of scrubbing through ninety. On screen, the timestamped rows link text to audio, so if a sentence is dense you click its cue and hear it again. The transcript is a single timestamped stream rather than lines split by speaker, which fits a lecture where one person is talking; in a Q&A section, note who is asking as you correct the rows.
How do I fix technical terms the transcript gets wrong?
Every transcript row is editable. Automatic transcription is strong on ordinary speech but can misspell domain jargon, drug names, equations read aloud, citations and unusual surnames. Click into the cue, play it with the row's own button to confirm what was said, and type the correction. Fix a recurring term in each place it appears and it flows into every export, TXT, SRT and VTT alike. For a subject with heavy notation, correcting the key terms first is what makes the whole transcript trustworthy as a revision source rather than a rough draft.
Can I caption the lecture video for accessibility?
Yes. Export the corrected transcript as SRT or VTT and the recorded lecture carries captions, which many institutions require for deaf and hard-of-hearing students and which help everyone revising with the sound off or in a second language. Because the captions come from the transcript you already corrected, the technical terms are right rather than machine-guessed. The output matches a dedicated subtitle generator, so you can either keep the captions as a sidecar file for the course platform or burn them into the video.
Can it transcribe a lecture that is not in English?
Yes. EchoWave transcribes 50+ languages and detects the spoken language automatically, but you can override the detection when a lecture is delivered in another language or when auto-detect guesses wrong, which happens more with heavy accents or a lecturer who switches between two languages mid-sentence. Set the language yourself and run it again. Once the transcript is right, you can also translate it into 80+ languages with editable output, so an international cohort reads the same lecture in the language each student needs.
Will it handle a long recording?
Yes, and long recordings are the normal case here: full lectures, double periods and three-hour seminars. Processing time scales with the length of the file, so a two-hour recording takes longer to transcribe than a twenty-minute tutorial, but the flow is identical, upload, transcribe, correct, export. The timestamped rows stay navigable as the count grows, and because you can jump straight to a section by clicking its cue, you never have to read a long transcript top to bottom to find the part you actually need.
Are my lecture recordings private?
Uploads go into your own EchoWave library and are processed there to produce the transcript. Nothing you upload is published or listed anywhere, and the recording and its transcript are reachable only from your account. Sharing happens only if you choose to download an export and hand it on, say an SRT to the course team or a TXT to a study group. For a recording of a class, that keeps the model simple to reason about: the file goes in, the transcript comes out, and both stay under your control.
Is lecture transcription free?
Transcribing and downloading the transcript are free to start: upload the lecture, run the transcription, edit the rows and export TXT, SRT or VTT for your notes and captions. The free plan's limits apply to video exports, which carry a small watermark and cap at 720p; paid plans remove the watermark and export up to 4K. If all you need is the recording turned into searchable text and caption files, you can get a long way without paying anything.
Turn the lecture into study notes
Timestamped, editable transcription and captions for recorded lectures. Free to start.
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