Transcribe long shoot days from a Zoom F6 32-bit float, sized to fit.
A 5-hour interview day recorded on a Zoom F6 transcribes in about 10 minutes, but a 32-bit float stereo mix of that length is about 6.9 GB, so export a 16-bit or MP3 copy under 5 GB first. The first 20 minutes are free, and the 300 minutes leave 200 on a $6 pack of 500.
Float in, text out
32-bit float means nothing clipped on set. It also means files twice the size of 16-bit.
How float files grow
Each 32-bit float sample is 4 bytes. At 48 kHz that is 192,000 bytes a second per channel, about 691 MB an hour for one ISO track and 1.38 GB an hour for a stereo mix. Five hours of stereo mix is about 6.9 GB, more than the 5 GB a single upload can be.
The copy to send
In an editor, bring the quiet voices up, then export the mix as 16-bit WAV (about 3.5 GB for five hours of stereo) or as a 128 kbps MP3 (about 288 MB). The transcript reads the speech, and the extra headroom in the float file adds nothing to it. If the upload refuses a file, convert it to MP3 first.
Mix or ISO tracks
The F6 records to an SD card and, depending on settings, saves a WAV per input, a polyphonic file, and a left-right mix. Upload a mix that holds every lavalier and the boom, not one ISO, or the transcript will hear a single person clearly and everyone else faintly.
Material for the edit room
The day returns as chapters with timestamps, key quotes with the interviewees named, and the names, numbers and dates said on camera. Download SRT or VTT for the timeline, or DOCX for a paper edit. A production that records every week may prefer the $19/month Workspace.
Float recordings elsewhere
The safest way to record a long day leaves the largest file to transcribe.
✗ What slows a shoot day down
Clean audio, oversized files.
- The OpenAI Whisper API refuses files above 25 MB
- Float WAVs refused by size alone
- A day cut into dozens of short clips
- Timecode lost across the pieces
- One ISO track sent by mistake
- Paper edits written from a scrub-through
✓ One day, one document
A mix sized to fit, transcribed in one run.
- 16-bit or MP3 mix under 5 GB
- Five hours of interviews back in about 10 minutes
- Interviewees named in the quotes
- SRT and VTT that sit on the edit timeline
- Opening 20 minutes of the day at no cost
- 200 minutes left on a $6 pack
Sample
A documentary interview day on a field mixer, as it comes back.
This sample is illustrative, written for this page rather than drawn from a real production. Roles take the place of the people filmed.
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 $6 (500 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
$6/500 min
8 hours of audio — $0.72 an hour. One-time — credits never expire.
- 500 minutes of audio
- All export formats
- Unlimited AI chat per transcript
- Executive summary & key quote
Best value
$12/2,000 min
33 hours of audio — $0.36 an hour. Credits never expire.
- 2,000 minutes of audio
- Priority queue
- All export formats
- Unlimited AI chat per transcript
Bulk pack
$24/5,000 min
83 hours of audio — $0.29 an hour. Credits never expire.
- 5,000 minutes of audio
- Priority queue
- API access for batch pipelines
- All export formats
FAQ
Zoom F6 recordings, the common questions.
How long does a 5-hour F6 day take to transcribe?
About 10 minutes. The 4.94-hour file on the proof page finished in 372 seconds, a little over six minutes.
What does a 5-hour shoot day cost?
After the first 20 free minutes on a first visit, the 300 minutes come from the $6 pack of 500, leaving 200. A twelve-day shoot of five hours a day is 3,600 minutes and fits the $24 pack of 5,000.
Will a 32-bit float WAV upload?
Yes, if it is under 5 GB; files up to 2 GB go before a pack, larger ones once a pack is on the account. A long stereo float mix passes 5 GB in under four hours, so export a 16-bit or MP3 copy.
Should I split the day into several files?
Splitting works, with one transcript per file. One sized-down mix of the whole day keeps a single timeline, which is easier when you search for a quote.
Which languages are supported?
99, detected automatically. Interviews in Swedish, Korean, Hebrew or Zulu need no setting, and a recording that switches language is detected on its main one.
What can I download, and is the footage audio private?
The shoot day exports to TXT, DOCX, SRT, VTT and JSON. Unreleased interviews stay unreleased: recordings are transcribed on our own servers and are never used for training.
Related
Float recorders and documentary work
Export the mix, send the day. The shoot day's first 20 minutes are free.
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