Ask for CART in writing, to the recruiting coordinator, at the moment the interview is being scheduled. Of the four options below it is the only one that is reliably accurate on proper nouns and technical vocabulary, and the only one you can prime with a glossary beforehand. Platform auto-captions are free and need nobody's permission, but they break on exactly the words a technical round turns on. An interpreter is the right ask if a signed language is your first language, and personal on-device transcription is a self-help layer you run for yourself, never a substitute for the accommodation you were entitled to request.
This is practical wording, not legal advice. In the United States the ADA treats CART and interpreting as reasonable accommodations that the employer arranges and pays for, and it is not lawful to push the cost onto the candidate. In the UK these are reasonable adjustments under the Equality Act 2010, and the Access to Work scheme has historically funded communication support at interview even before you are anyone's employee, so check the current terms rather than assuming. Either way, do not book a captioner on your own card and hope to claim it back.
The four options, scored on what actually decides a round
Latency and cost are the columns people ask about. Accuracy on names and jargon is the column that decides whether you answer the question that was asked, and consent is the column that decides whether you have any recourse when it fails.
| Platform auto-captions | CART | Sign language interpreter | On-device transcription | |
|---|---|---|---|---|
| Lag behind the speaker | Roughly one to three seconds, and displayed words rewrite themselves as the model hears more of the phrase | A couple of seconds. Text is committed rather than rewritten, so a correction arrives as a fresh line instead of the sentence changing under you | About a sentence, because the interpreter waits for enough grammar to render it, plus turn-taking overhead when you answer | About a second end to end, arriving as punctuated sentences |
| Names, acronyms and jargon | Weakest of the four. Framework names, internal product names and the interviewer's own name are precisely what a general speech model gets wrong | Strongest, and the only one you can prime. A captioner loads your glossary into their dictionary before the session starts | Accurate, but unfamiliar technical terms get fingerspelled letter by letter unless you agree signs in advance, which costs seconds each time | Same class of error as platform captions. There is nowhere to submit a glossary |
| Does the employer have to agree | No. You switch it on yourself and nothing is announced to the room | Yes. This is a formal accommodation request, booked and paid for by them | Yes, same route, and the harder of the two to source at short notice | No. Nothing joins the call and nothing appears in the participant list |
| Cost, and who carries it | Free, bundled with the meeting platform | Billed hourly to the employer, commonly with a minimum booking and a cancellation window measured in days | Billed hourly to the employer. Long assignments often need two interpreters working in relay, so a full loop costs more than a single round | Your own subscription. See pricing, including a free daily allowance |
| Lead time to arrange | None, but confirm the feature exists on their account before the day | Several working days is realistic. An agency has to find a captioner free in that exact slot | Longer still, especially for a specific language or a technical specialism | Install and rehearse with it beforehand |
| Where it sits on screen | Inside the meeting window, competing for space with the shared code editor | Usually a separate streaming text window, which is the more robust setup because it does not depend on their account tier | A pinned video tile you have to watch, which is the real cost during live coding | Your own overlay, excluded from screen capture at the operating system level |
| Most common way it fails | Absent on the day because an admin policy disabled it, or accuracy collapses the moment two panellists talk over each other | The captioner is booked for one round of a four round loop, or never receives the joining link | The loop overruns and the booking ends before the last session does | Audio routed away from the PC, or a speech model writing fluent text that nobody said |
| Where it fits best | A short recruiter screen, and as the fallback behind everything else | Technical and behavioural rounds where the exact wording is the thing being scored | Any round, if a signed language is your first language, and behavioural rounds in particular | Rehearsal, and the round where your primary option fails at nine in the morning |
The glossary is the reason CART is accurate, so send one
This is the step most candidates skip, and it is the difference between a transcript you can answer from and one you spend the round decoding. Captioners write from a personal dictionary built up over years, and unfamiliar proper nouns are the known weak point. Every agency will accept a prep pack. Most want it at least a day ahead, so it is loaded before the session rather than during it.
- Names and roles from the calendar invite. Attendee names as they are spelled, plus job titles. A mangled surname in the transcript is a small thing until you have to use it in a thank-you email.
- The company's own vocabulary. Internal product names, team names, anything from the careers page that would not appear in a general dictionary.
- The stack, copied verbatim from the job advert. Kubernetes, Kafka, gRPC, Terraform, whatever is listed. Paste it rather than retyping from memory, so the spelling is theirs.
- The acronyms in your own resume. You will say them out loud, and the interviewer will repeat them back with a follow-up question attached.
- Ask for verbatim CART, not meaning-for-meaning. Condensed services such as TypeWell and C-Print are excellent in a lecture, where the point is the gist. In a system design round the clause that gets condensed away is the constraint the answer is scored on. Put the word verbatim in the request.
- Ask whether you get the transcript afterwards. Often you can, and it makes a specific follow-up email trivial to write. Ask rather than assume, because a saved transcript raises a consent question the coordinator has to settle first.
The booking sequence, and where it breaks
At scheduling, name the service and the format
Not "I have hearing loss", which invites a well-meaning guess. "Verbatim CART, delivered as a streaming text link I open in a second window" is a request a coordinator can forward to a vendor without a single follow-up email.
Get the delivery method confirmed in writing
In-meeting captioning depends on the employer's account settings and on whether an admin has enabled third-party captions at all. A separate streaming text window depends on nothing but a browser. If they offer both, take the browser link as primary and treat the in-meeting version as the spare.
Send the glossary two days out
To the coordinator, with an explicit ask to forward it to the captioning agency. Coordinators file attachments and forget them, so name the deadline: "could this reach the captioner by Thursday so it can be loaded in advance".
Join fifteen minutes early for a caption check
Test the link, the font size and the window position while it is still housekeeping. Fifteen minutes is enough to escalate to a phone call if the link is dead. Two minutes is not.
Re-confirm per round, and ask about overrun
The classic failure on a four round loop is coverage for round one only. Ask two questions in one message: is the captioner booked for every session including the gaps, and what happens if the loop runs thirty minutes long.
The request email
Subject: Interview accommodation request, [Role], [date]
Hi [Name],
Thanks for setting this up. I am hard of hearing and I would like to request CART captioning for the interview. Is there an accommodations contact I should copy in, or are you the right person to arrange it?
What I need is verbatim CART, ideally delivered as a streaming text link I can open in a second browser window, since that works regardless of the meeting platform. If the captioner can be booked for all four sessions rather than the first one, that covers the whole loop in one go.
I will send a short glossary of names and technical terms two days beforehand so it can be loaded in advance. Could you confirm the vendor once it is booked? I will join fifteen minutes early to test the link.
Best regards,
[Your name]
Three things that email does deliberately. It names a service rather than a difficulty, so nobody has to research what to buy. It offers the glossary, which reads as helpful and is the single biggest lever on accuracy. And it raises the whole loop up front, before an agency quote has been signed off for one hour only.
Before you rely on platform captions
Auto-captions are worth switching on in every call, including the ones that already have CART, because they cost nothing and cover the seconds where a human misses. Two specifics decide whether they can be your primary. First, the feature can simply be missing: on a locked-down corporate account an administrator can disable captions, so open a test meeting on the exact platform named in the invite and confirm the control is there. Second, they degrade badly on a panel. Two people finishing each other's sentences is the situation every automatic system handles worst, and it is also the situation you most need help with. Find the caption control before the call starts, because hunting through a menu during a live question costs you the question.
Where a personal transcription tool fits, and where it does not
Say this part plainly: a personal transcription tool is a self-help layer, not an accommodation. It is never a substitute for a formally requested CART service, and it should not become your reason for skipping the email above. The request is the thing that changes the process, creates a record, and gives you something to point at when a round is run without access. Software on your own laptop does none of that, and if you quietly use it instead of asking, the next employer's process has exactly the same gap in it.
The honest limits of the on-device option, ours included:
- It produces an English transcript. If BSL or ASL is your first language, text in a second language is not equivalent access, and no amount of speed changes that. Ask for the interpreter.
- Speech models invent things. Whisper can emit fluent, confident text during silence or noise that nobody said. If a line surprises you, treat it as unverified and ask, rather than answering the sentence you read.
- Crosstalk defeats it, exactly as it defeats platform captions. Separating simultaneous speakers is the hard part of the problem and none of the automatic options solve it.
- The audio has to come through the computer. Loopback capture reads system playback, so headphones and AirPods are fine, but a phone dial-in is out. If a round moves to a phone line the transcript stops.
- Windows 10 and 11 only. No macOS, no Linux, no mobile, no browser extension, so an in-person interview or a MacBook is outside what this can do at all.
- Capture exclusion is a privacy property, not an anti-detection one. The overlay is excluded from screen capture at the operating system level, so it does not appear in Zoom, Teams, Meet, OBS or a screenshot. That covers screen sharing and recording only. It does nothing about a webcam, a lockdown browser, eye tracking, a second-device camera, or someone watching you in the room.
Where it does earn a place is the morning the primary option fails, which happens more often than any vendor page admits: the captioner never appears, the streaming link is dead, the caption button is greyed out on their managed account. OfferPilot AI transcribes the interviewer's audio on-device with Whisper and puts a speakable draft on screen in about a second, grounded in your resume, so you have something to read while the coordinator is being paged. Metering counts listening time only, so a round that stalls costs you nothing. The two quieter uses are probably worth more: rehearsing against unfamiliar phrasing from a question list, and building a company bank with the Q&A generator, which doubles as the glossary you send the captioner. The Interview Copilot page has the rest of the mechanics.
If the answer is no, or is silence
Get it in writing, then narrow the ask. A refusal to fund CART is rarely a refusal to do anything at all, and the cheaper adjustments need no vendor: one interviewer speaking at a time rather than a panel, each question also pasted into the chat as it is asked, a written technical prompt instead of a spoken one, the agenda and attendee list in advance, next steps confirmed by email. Ask them to enable the platform's own captions if an admin policy is blocking them, which is a settings change rather than a purchase. And say the sentence that removes the fairness objection before it gets raised: none of this changes the content of the interview or the time you spend answering.
Related guides
- Interview Accommodation Request Emails: 6 Copy-Paste Templates
- ADHD Interview Accommodations: 9 Asks and the Exact Wording
- Can't Understand Your Interviewer's Accent? Scripts and Captions
- Job Interview With a Stutter: Disclosure and Accommodations
- Panic Attack During an Interview: What to Say in the Moment