Field recorders write uncompressed audio, so the files are large and the only real question is which route they take. Up to 500 MB goes straight into the box below; anything bigger continues on the upload page, which allows 10 hours or 5 GB per file. The transcript comes back with every word timed. A pack from $4 opens the full transcript · packs from $4 for 500 minutes.
How it works
The only thing to plan for is size.
Most field recorders write to an SD or microSD card, and a card reader is faster than the cable. The files sit in a folder the recorder made.
Under 500 MB goes into the box on this page. Over that, use the upload page, which takes files up to 10 hours or 5 GB.
Every word is timed, so you can click a line and hear it. Export TXT, DOCX, SRT, VTT, MD or JSON.
Size arithmetic
WAV is uncompressed, so this is arithmetic rather than a surprise.
For a long interview, recording at 24-bit/48 kHz rather than 96 kHz halves the file and costs the transcript nothing.
Field recorder specifics
Tascam, Zoom, Sony and the rest all behave this way.
A plain WAV file cannot exceed 4 GB, so recorders switch to Broadcast Wave or RF64 for long takes. Both upload the same way — see BWF and RF64.
A recorder with several inputs may write one file holding four or more tracks. The transcript covers the recording as a whole; to work from one microphone, mix down to stereo or mono first.
Speaker labels come from the voices in the audio and appear in the transcript view, not from which input someone was plugged into. TXT, DOCX, SRT and VTT download without them; JSON keeps them.
Wind, a hand on the body of the recorder and a knock on the table cost more accuracy than a higher sample rate buys back.
Pricing
A pack from $4 opens the full transcript. After that, one-time packs: $8 for 1,000 minutes, $12 for 2,000 minutes and $24 for 5,000 minutes. Credits never expire.
A two-hour session is $0.96 on the $8 pack. You pay for length, not file size.
FAQ
The box on this page accepts files up to 500 MB, and an hour of stereo WAV is usually more than that. Use the upload page instead, which allows up to 10 hours or 5 GB per file.
No. WAV uploads as it is, and so do Broadcast Wave and RF64 files, which recorders use for takes past WAV's own 4 GB limit.
It is transcribed as one recording. If you need the transcript of one microphone in particular, mix that channel down and upload that instead.
Not meaningfully. 24-bit at 48 kHz is ample for speech and halves the file against 96 kHz. Microphone placement matters far more.
No, for its length. An hour costs the same whether it arrives as a 2 GB WAV or a 100 MB MP3.
The transcript view marks turns with numbered speaker labels, taken from the voices themselves. TXT, DOCX, SRT and VTT download without labels; JSON records the speaker of each segment.
Up to 10 hours or 5 GB, whichever comes first. At 24-bit/96 kHz stereo the 5 GB limit arrives at about two and a half hours.
Instant preview, no signup. A pack from $4 opens the full transcript.