How to transcribe a legal deposition (accurate, fast, confidential)

Court reporters are the official record. AI transcription is the working copy.

That distinction matters for understanding where automated deposition transcription fits in legal workflows. It is not a replacement for a certified transcript submitted to a court. It is a faster way to get searchable text from recorded depositions, client interviews, witness statements, and internal calls for internal use: case preparation, timeline building, finding key quotes, and reviewing what was actually said.

Here is how the process works and what to watch for.

When AI transcription is useful in legal work

Case preparation. You have a recording of a deposition but the official transcript won't arrive for two weeks. An AI transcript takes 10 minutes and gives you searchable text for building your case in the meantime.

Client interviews. Recorded intake calls, client consultations, and witness interviews are often not formally transcribed. AI transcription turns them into searchable documents without sending every file to a transcription service.

Reviewing depositions before hearings. Before a hearing, attorneys often re-read depositions to find inconsistencies. A text document is faster to scan than re-watching the video recording.

Discovery review. Sorting through large volumes of recorded audio in discovery is time-consuming. AI transcription makes search-and-review feasible at scale.

Non-court documentation. In-house legal teams, compliance departments, and HR investigations record conversations that are never going to court but still benefit from a written record.

Privacy: what to look for in a transcription tool

Deposition recordings are confidential. They typically contain information covered by attorney-client privilege, litigation strategy, and personal details about witnesses and deponents.

The critical question when choosing a tool is what happens to the audio file after processing.

Avoid tools that retain audio for "service improvement" or "model training." That language means your confidential recording sits on someone's server indefinitely.

Prefer tools that delete audio after processing. TranscribTxt deletes uploaded files after processing; the one exception is a free-preview upload, kept up to 24 hours so the rest of the file can be finished. Transcripts aren't stored on its servers.

Local alternative. OpenAI Whisper running on your own machine never sends data anywhere. It requires Python setup and is slower without a GPU, but it is the maximum-privacy option for sensitive material. If your firm handles high-volume confidential recordings, the setup cost is worth it.

How to transcribe a deposition with TranscribTxt

Step 1: Locate your audio or video file. Zoom and Teams save recordings in MP4 or M4A format. Court reporters sometimes provide audio files in WAV or MP3. All of these work with TranscribTxt.

Step 2: Go to transcribtxt.com. No installation. Works in any browser.

Step 3: Upload the file. Drag the file into the upload area. The language is detected automatically across 99 languages, so there's nothing to select; if a witness testifies in another language, review those passages closely. The free plan covers files up to 30 minutes; a longer deposition gets its first 30 minutes free, and Pro or a $5 Week Pass covers the whole recording.

Step 4: Wait for processing. In October 2026, half of the files on our servers were transcribed in 14 seconds or less, and a 145-minute recording took 2 minutes 45 seconds. Times don't include uploading, which depends on your connection.

Step 5: Review the transcript. The transcript appears on screen. Scan for proper nouns, case-specific names, and technical terms that may need correction. These are the most common error points in AI transcription.

Step 6: Download. Every plan exports TXT and SRT; the SRT has timestamps, which is useful for cross-referencing specific moments in the recording. Pro ($10/month) adds JSON with word-level timestamps.

Speaker labels for depositions

Most depositions involve multiple speakers: the attorney taking the deposition, the deponent, and sometimes opposing counsel or an interpreter.

TranscribTxt doesn't offer speaker diarization (automatic speaker labeling), so its transcript is continuous text. In a deposition, the question-and-answer rhythm makes marking attorney and deponent manageable during review; use the SRT timestamps to check any exchange against the recording.

If you need automatic labels, choose a tool with diarization. With two or three clearly distinct voices recorded cleanly, diarization works well; with multiple speakers in a conference room, some manual review is needed.

Accuracy expectations for legal recordings

AI transcription is not verbatim-perfect the way a certified court reporter is. Here is what to expect from different audio conditions:

At 96% accuracy on a 60-minute deposition — roughly 8,000 to 9,000 words — you are looking at around 320-360 words that need review. That is 20 to 35 minutes of proofreading, compared to 4 to 6 hours to transcribe from scratch.

At 90% accuracy on challenging audio, the correction load is heavier, around 900 words, but still significantly faster than manual transcription.

Timestamps and navigation

SRT format (every plan, free included) includes timestamps for every segment of the transcript. This lets you jump directly to a specific moment in the recording when you need to verify context or find a specific exchange.

Plain TXT format is clean text without timestamps, useful for reading and searching but harder to cross-reference against the original recording.

AI transcription vs human transcription for depositions

For most legal work that does not need a certified transcript, AI transcription is faster and cheaper by an order of magnitude. A paralegal reviewing 10 hours of recorded depositions per week would pay $10 a month on Pro (well inside its 100 hours of audio a month) versus hundreds of dollars a week for the same volume from a human transcription service.

What TranscribTxt does not do

It does not certify transcripts. For official court exhibits, a certified human court reporter is required.

It does not do real-time transcription during a live deposition. You upload a file after the fact. For live captioning during the deposition itself, other tools handle that.

It does not label speakers at all, by name or by number. You mark who is speaking during review.

Getting started

The free plan at transcribtxt.com covers 3 files a day, up to 30 minutes each, with no credit card required, and includes SRT timestamp export. For regular deposition review, Pro at $10/month removes the per-file length cap (up to 100 hours of audio a month) and adds JSON export for document management workflows. A one-time $5 Week Pass gives you 7 days of Pro for a single case.

The audio file is deleted after processing, and the transcript isn't stored on our servers.