Which audio and video formats a browser can transcribe, what each carries inside, what is discarded before the speech model hears it, and when converting is worth it.
Alain.
Builds and runs FreeTranscribe.
Legal transcription software gives you a searchable draft of a deposition or hearing, not a certified transcript. Here is where the line sits.
Interview transcription after you promise a source confidentiality: map every copy of the recording, keep companies out of the chain, be honest about the rest.
Audio transcription without uploading is a claim you can check. What a deletion promise covers, how to verify it in the network panel, and what stays yours.
Therapy session transcription usually involves special category health data. What Article 28 asks before you send audio out, and what changes if you don't.
What HHS says about PHI, business associates and the Security Rule, and why HIPAA compliant transcription looks different when the audio stays on your device.
Plain-words GDPR transcription guide for people who record meetings: which parts of a transcript are personal data, what to tell attendees, how long to keep it.
Secure transcription checklist for consultants, lawyers and therapists: eight questions to ask before uploading a client call, and a local alternative.
Whisper model sizes from tiny to large and turbo: what parameters mean, the VRAM and speed figures from OpenAI's own table, and what each costs in a browser.
WebGPU lets web pages use your graphics card for maths, not just drawing. Which browsers have it, what can block it, and why it matters for speech recognition.
Speech recognition accents come from the training data, not from the speaker. What the research measures, what it does not, and what actually helps accuracy.
Pick your route: transcribe a meeting from Zoom, Teams or Meet with the platform guide, or handle a plain phone recording with no platform behind it.
Whisper speaker diarization is a separate task the model does not do, so a two-speaker interview comes back as one block. Here is how to add the labels.
Whisper hallucination is when the model writes a sign-off or a looping phrase over a pause. Here is why a speech model does that, and five ways to stop it.
How to edit a transcript fast: the seven mistakes speech recognition makes most, the quickest search for each, the fix, and a time budget per hour of audio.
Nine recording habits that improve transcription accuracy: mic distance, one voice at a time, echo, levels, phone placement, file format and a 10-second test.
Subtitle timing off usually means one of three things: a constant offset, drift that grows through the file, or a few cues out on their own. How to fix each.
Subtitles for Reels, TikTok and Shorts: what YouTube's help pages document, what we could not verify, and how to cut cues short enough to read on a phone.
How to transcribe a focus group when six people overlap and the transcript has no speaker labels: what to record, how to moderate, and when to pay a human.
Burn subtitles into video free with HandBrake or one ffmpeg command: the exact steps, the one-track limit, how styling gets chosen, and what it costs you.
Three free ways to add subtitles to video without uploading it: a sidecar SRT that VLC loads itself, a caption file for YouTube, or HandBrake burning them in.
There's no batch transcription button: the tool takes one file at a time. Here's how to get through a folder of recordings in one sitting, uploading nothing.
Going from podcast transcript to blog post is a rewrite, not a clean-up. A working method: find the claims, build a structure, quote only where words matter.
A seven-step student workflow to transcribe lecture recordings free in your browser, turn the text into notes and search a whole term's lectures at once.
How to transcribe podcast episodes free in your browser, then turn the transcript into show notes: summary, chapters with timestamps, links and a quote.
How to transcribe a research interview without breaking what you promised: consent wording, pseudonyms, and a file your coding software can actually read.
Getting the M4A off the phone is the hard part. Four routes Apple documents to a Mac or Windows PC, then how to transcribe a voice memo in your browser.
Download your own upload from YouTube Studio, transcribe the MP4 in your browser, and turn the result into a YouTube transcript, show notes or captions.
Teams transcription locked? The recording is still a video file in OneDrive. Who can download it and how to transcribe a Teams recording in your browser.
How to transcribe an interview end to end: choose verbatim, clean verbatim or notes, record two people well, run the file, then edit and timestamp quotes.
Where Zoom saves a recording on Windows and Mac, which file to use, how to download a cloud one, and how to transcribe a Zoom recording without uploading it.
A repeatable twenty minute test for any free subtitle generator: one hard two minute clip, eight questions to ask it, and what a good answer looks like.
Transcription cost per minute at nine vendors: developer APIs from $0.0025, consumer plans from $0.005, human work from $1.99. Prices dated 15 September 2026.
What an hour of transcription costs on Otter, Rev, Descript, the speech APIs, and a model running on your own laptop. Every price checked 15 September 2026.
Free transcription tiers stop at 30, 45 or 60 minutes for a reason you can calculate: what a free user costs, what an ad pays, and why local changes it.
A plain guide to the WCAG captions rules: which success criteria are Level A, which are AA, what captions must contain, and how to produce the file.
Converting SRT to VTT, VTT back to SRT, or a subtitle file into plain text or a document: the exact edits, what each one loses, and when to use an editor.
Transcribe a TikTok video you made yourself: start from your source file, keep the whole job in the browser, and reuse the text as a description or a post.
The exact SRT format, three ways to make a file, the timing rules broadcasters use, and the five small mistakes that make YouTube or VLC reject it.
SRT vs VTT vs plain text, settled: what a cue is, why SRT carries no styling, what breaks in the wrong player, and which export to take for each job.
Getting the audio off your phone is the hard part. The routes WhatsApp documents, then how to transcribe a WhatsApp voice message without uploading it.
Where Google Meet saves a recording in Drive, who can download it, what editions include transcripts, and how to transcribe a Google Meet recording locally.
Transcribe MP4 to text without uploading it. Only the audio track is read, so a 4 GB video is not 4 GB of work, and MOV files go through the same path.
Transcribe WebM to text in the browser. What Opus audio, a missing duration and a screen recording with no audio track mean for the file you were handed.
Transcribe M4A to text in your browser. What Apple's extension really means, where M4A files come from, and why a purchased track refuses to open.
Transcribe WAV to text in the browser, with the arithmetic behind a 600 MB hour and why an uncompressed studio file reaches the model as 16 kHz mono.
Transcribe MP3 to text in your browser, and see what bitrate, mono or stereo and re-encoding really cost you once the audio is mixed down to 16 kHz mono.
How to convert audio to text three ways: type it yourself, upload to a cloud service, or run speech recognition in your browser. Costs, speed and privacy.