How to Transcribe Deposition Prep Recordings

The week before a deposition, a paralegal I know records every prep session with the witness on her phone. Not to file anything. Just so the attorney can hear how the witness answers a hard question the second and third time, and so nobody has to trust memory about what was said in the conference room on Tuesday. By Friday she has six hours of audio and no time to sit and replay all of it. That's the exact problem AI transcription solves well: it turns those prep recordings into text you can skim, search, and quote back to the team in minutes instead of an afternoon.

Deposition transcription in the courtroom sense is a job for a court reporter. What follows is about the other thing lawyers deal with constantly — the informal recordings around a case that nobody swears to but everyone needs to read.

What "deposition prep" recordings actually are

When people say deposition transcription, they usually mean the official record a certified reporter produces during the deposition itself. That's not what this guide covers, and it's worth being blunt about the line. Transkio does not produce certified or sworn court transcripts, and its output should never be filed or offered as the official record. What it does is take the unofficial audio and video around your prep — mock questioning, witness coaching sessions, strategy debriefs, a quick voice memo after a call — and give you clean, timestamped text.

If you want the background on what a deposition is and how the formal process works, the Wikipedia overview of depositions) is a solid, neutral primer to hand a junior team member.

Why teams record prep in the first place

There are a few honest reasons this audio piles up:

• Witness rehearsal. You run the witness through likely questions and want to compare answers across sessions.
• Consistency checks. A witness who says "around 9" on Monday and "before 8" on Wednesday is a problem you'd rather catch before opposing counsel does.
• Delegation. The associate who couldn't attend prep can read what happened without booking another hour with the partner.
• Fact capture. Sometimes the witness mentions a document or a name in passing, and you need to find that moment later.

Text makes all four faster. You can search a transcript for a name in one second. You cannot search an audio file at all.

Setting up a clean recording

The quality of your transcript is decided before you ever upload anything. AI handles clear speech well and struggles with the same things a human ear struggles with — crosstalk, mumbling, a fan running under the table.

Get the microphone close

Phone on the table works, but closer is better. If the witness and the attorney are three feet apart, put the recording device between them, not in front of one person. For a video call prep session, record the meeting audio directly rather than pointing a phone at a laptop speaker. Recording browser-tab or meeting audio is a paid feature (Pro+) in Transkio, and it's worth it here because you skip a whole layer of room noise.

Control the room

Close the door. Turn off the noisy HVAC vent if you can. Ask people not to shuffle papers next to the mic. None of this is fussy — every bit of background noise is a word the model might guess wrong, and in a legal context a wrong guess costs you review time.

A quick pre-record checklist

Before you hit record on a prep session, run through this:

1. One device, placed centrally, battery charged.
2. Everyone states their name once at the top ("This is prep for the Reyes matter, present are…"). This gives you natural anchors in the transcript.
3. Phones on silent, not vibrate — a buzzing phone on a wooden table is loud on tape.
4. If it's a video call, confirm the platform lets you capture audio and that everyone knows they're being recorded.

That last point matters legally and ethically. Recording-consent rules vary by jurisdiction and by who's in the room. Know your rules before you record anyone.

Transcribing the recording, step by step

Once you have the file, the actual transcription is the easy part.

Upload or record in the browser

You can drag an existing file — an MP3, WAV, or M4A from your phone or recorder — straight into Transkio, or record the session live in the browser. The free plan accepts files up to 100 MB and in-browser recordings up to 30 minutes, which covers a short debrief but not a full afternoon of prep. Longer sessions are where a paid plan and the higher limits earn their place.

Transkio works across 50+ languages, so a prep session with a witness who's more comfortable in another language isn't a dead end.

Turn on speaker detection

In a prep session with three or four people, you want to know who said what. Speaker detection (Elite+) labels the different voices so the transcript reads like a script instead of a wall of text. It won't know that Speaker 2 is your witness — it guesses at speaker boundaries, not identities — so you'll relabel "Speaker 2" as "Witness" during review. That's a two-minute find-and-replace, not a rewrite.

Review before you rely on it

This is the step nobody should skip in legal work. AI-generated transcripts may contain errors — please review before relying on them.

AI transcription guesses at proper nouns, case numbers, and unusual names — the exact things that matter most in a legal file. Read the transcript against the audio at the spots that matter: names, dates, dollar figures, and any quote you plan to use with the attorney. For a deeper look at where machine transcripts and human ones each shine, this breakdown of AI versus human transcription is worth ten minutes.

What to fix first

Prioritize your review time instead of reading every line with equal attention:

• Names and places — the model's most common miss.
• Numbers — dates, amounts, times, docket references.
• Negations — "did not" versus "did" changes everything, and fast speech can blur it.
• Anything you'll quote — if it's going in a memo, verify it word for word.

Turning the transcript into something usable

A raw transcript is a starting point, not the deliverable.

Export to the format your team uses

Free exports cover TXT, SRT, VTT, which is fine for a quick read. If you want a formatted document the associate can mark up, exporting to a Word file (audio to Word, DOCX at Pro+) drops the transcript into an editable doc with speakers and timestamps intact. From there it behaves like any other case document — comments, redlines, the usual.

Pull an AI summary for the partner

Nobody senior wants to read forty pages of prep transcript. An AI summary (Elite+) gives you a short digest of the session — the themes, the shaky answers, the open questions — that you can drop into an email. Treat it the way you'd treat a junior's summary: useful, and something you spot-check before forwarding.

A note on interview-style sessions

A lot of prep is really a structured interview — you ask, the witness answers. If that's your setup, the same techniques that work for interview transcription apply here: clean turns, one speaker at a time, and a habit of restating names. And if your practice handles a broader mix of case audio, the legal transcription overview walks through the wider set of use cases beyond prep.

Where AI helps and where it stops

Let me be direct about the trade-offs, because overselling this to a legal team would be a mistake.

AI transcription is fast, cheap relative to a human transcriptionist, and genuinely good at clear speech. For prep recordings — internal, unofficial, read by people who know the case — it's a strong fit. You get searchable text in minutes and you keep the file inside a workflow you control.

What it is not: it isn't a court reporter, it isn't a sworn record, and it makes mistakes exactly where legal work is least forgiving of them. Transkio offers no compliance certification, so use judgment about what you upload and whether you're cleared to put a given recording into any third-party tool. For the official record, you hire a certified reporter. For everything around it, transcription like this saves your team hours a week — as long as a human reads it before anyone relies on it.

That balance is the whole point. Use the machine for speed on the informal stuff, keep a person in the loop for accuracy, and never blur the line between prep notes and the sworn record.