Merge Zoom recording parts so the whole meeting reads as one transcript.
To merge Zoom recording parts, list them in a text file (one line per part, such as file 'part1.mp4') and run ffmpeg -f concat -safe 0 -i parts.txt -c copy meeting.mp4; if the parts differ in resolution, merge the sound only with -vn -c:a libmp3lame -b:a 64k meeting.mp3. Merging is optional for a transcript, because each part can go up on its own at the same price per minute, but one merged file gives one transcript whose timestamps run straight through the meeting.
From several parts to one
Pausing a Zoom recording usually keeps one file. Stopping and starting again usually does not. Here is how to put the pieces back together.
Gather the parts
For a local recording, open the meeting's folder in the Zoom documents folder; extra parts appear as more MP4 files with similar names. For a cloud recording, each stop and restart tends to show as its own item in the recordings list of the Zoom web portal; download each one. If you see a .zoom file and no MP4, the conversion did not finish, and Zoom usually offers to complete it when you open that file.
Write the list, in order
Create parts.txt with one line per file, in the order they were recorded: file 'part1.mp4', then file 'part2.mp4', and so on. File names and times shown in the folder tell you the order. The list order is the order of the merged meeting.
Merge without re-encoding
ffmpeg -f concat -safe 0 -i parts.txt -c copy meeting.mp4 joins the parts in seconds, because nothing is re-encoded. It works when the parts share the same settings, which recordings from one meeting usually do. If the result stutters at a seam, someone probably changed the screen-share resolution; merge the audio instead.
Merge only the sound
ffmpeg -f concat -safe 0 -i parts.txt -vn -c:a libmp3lame -b:a 64k -ac 1 meeting.mp3 ignores the picture. If the folder also holds M4A files, which Zoom writes when its audio-only option is on, list those and use -c copy for a merged M4A. Upload in the box above; over 500 MB continues on the upload page.
Where split meetings go wrong
Three files from one meeting become three separate transcripts, and nobody can find what was said after the break.
✗ Three parts, three transcripts
Each part is transcribed alone, the timestamps restart at zero three times, and the summary misses the thread.
- Three summaries for one meeting
- Timestamps that restart after each break
- Parts merged in the wrong order
- Re-encoding video just to join it
- An unfinished .zoom file left behind
- Recording without telling the participants
✓ One file, one brief
The parts are joined in order, the sound goes up once, and the brief covers the meeting from welcome to wrap-up.
- List the parts in recording order
- Join with -c copy, no re-encode
- Audio-only merge if a seam stutters
- Timestamps run through the whole meeting
- About 6 minutes for 3 hours
- 185 minutes on the $4 pack of 300 minutes
Sample
A workshop recorded in three Zoom parts, merged: the lines either side of the second seam.
Illustrative lines written for this page, not from a real meeting. After merging, timestamps continue across the seam instead of restarting at zero.
Export
One transcript. Five clean formats.
Every pack exports all five — no format is held back for a higher tier.
Plain text
De-ummed paragraphs. Ready to paste.
SRT captions
Timed to the speech. Every video editor reads this.
WebVTT
HTML5 player + YouTube uploads.
Show notes
Formatted with chapters and pull-quotes.
Machine-readable
Timestamped text for your own tools.
Pricing
Honest pricing, no surprises.
A pack from $4 (300 minutes) opens the full transcript. After that, no subscription and no auto-renew — every tier is a one-time minute pack, and credits never expire. Buy once, use the minutes whenever you need them.
Casual pack
$4/300 min
5 hours of audio — $0.80 an hour. One-time — credits never expire.
- 300 minutes of audio
- All export formats
- AI chat over the whole transcript
- Executive summary & key quote
Best value
$18/3,000 min
50 hours of audio — $0.36 an hour. Credits never expire.
- 3,000 minutes of audio
- Summary, chapters and key quotes
- All export formats
- AI chat over the whole transcript
Bulk pack
$32/6,000 min
100 hours of audio — $0.32 an hour. Credits never expire.
- 6,000 minutes of audio
- Summary, chapters and key quotes
- API access for batch pipelines
- All export formats
FAQ
Merging Zoom parts, answered.
Why did Zoom save my meeting in several parts?
Usually because the recording was stopped and started again rather than paused; each start begins a new file. Cloud recordings split the same way. Leaving and rejoining as the host can do it too.
Do I have to merge the parts to transcribe them?
No. Each part can be uploaded on its own and the minutes cost the same. Merging gives one transcript, one brief and one set of chapters for the whole meeting, which is easier to read and to search.
The concat command fails or the video jumps. What now?
The parts probably have different video settings. Merge the audio only with -vn and a 64 kbps MP3, which ignores the picture. For a transcript, the sound is all that matters.
How long does a merged meeting take?
About 2 minutes per audio hour: a 3-hour merged meeting returns in about 6 minutes. A merged file over 10 hours goes up as two files, and a file up to 5 GB uploads before your first pack.
What does it cost?
Packs start at $4 for 300 minutes, and credits never expire. Ten weekly workshops of the same length, 1,850 minutes, fit the $18 pack of 3,000 minutes. The opening minutes are free on a first visit, and credits keep indefinitely.
Anything to check before transcribing a call?
Recording a call needs the consent the law where you are requires; Zoom shows a recording notice, but tell people anyway. No bot joins the call: this works on the recording afterwards. Recordings are processed on our own servers and never used for training.
Related
Related pages
Merge the parts once. Read the meeting as one.
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