Transcribe long interviews from a Tascam DR-10L the lavalier recorder's WAV, uploaded whole.
A 2.5-hour interview recorded on a Tascam DR-10L lavalier recorder comes back as text in about 5 minutes when you upload its WAV file. The first 20 minutes are free, the 150 minutes fit a $6 pack of 500, and an oral history project of twenty such interviews fits the $24 pack of 5,000 minutes.
Clipped on, recorded, uploaded
The DR-10L records the voice right at the collar. That makes long interviews clear, and a little one-sided.
Where the file lands
The DR-10L records to a microSD card. Connect it by USB to copy the take, or read the card in a reader, then drop the WAV here. Some settings leave an extra safety copy recorded at a lower level; if one take clipped on a loud laugh, upload the other.
One mic, two voices
A lavalier on the guest records them clearly and the interviewer from across the table, more quietly. The quieter voice is usually still transcribed, but a second DR-10L on the interviewer gives two files. Line them up and mix them in an editor so both voices are equal in one upload.
A size check
A mono WAV at 24-bit, 48 kHz is 48,000 × 3 bytes per second, about 518 MB an hour, so a 2.5-hour interview is roughly 1.3 GB. That uploads before any pack. A mixed stereo file of two recorders is about 2.6 GB at the same settings and starts once a pack is on the account.
From interview to project file
Each interview comes back with a brief, chapters with timestamps, the names, places and dates mentioned, and the key quotes with the speakers named. For an oral history project, the twenty transcripts become a searchable set, and the chat finds every mention of one street or year.
Long lavalier interviews elsewhere
A body-worn recorder runs for hours without fuss. The upload is where it gets fussy.
✗ Common hold-ups
A clear voice at the collar, stuck behind file limits.
- The OpenAI Whisper API allows 25 MB per file
- Long WAVs re-encoded just to fit
- Two recorders transcribed as two documents
- Interviewer's questions missing from one track
- Dates and names checked by listening again
- Projects that stop at the fifth interview
✓ Each interview whole
One file in, one document out.
- DR-10L WAV accepted as it is
- Two and a half hours back in about 5 minutes
- Names and places pulled out for you
- Each quote tied to the narrator who said it
- First 20 minutes of an interview free
- Twenty interviews on a $24 pack
Sample
An oral history interview on a lavalier recorder, as it comes back.
This sample is illustrative: it was written for this page, and no real narrator said it. The narrator and interviewer are roles, not real people.
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
Tascam DR-10L recordings, the common questions.
How long does a 2.5-hour DR-10L interview take?
About 5 minutes of processing. On the proof page, a 2.48-hour file came back in 200 seconds.
What does an oral history project cost?
Twenty interviews of 150 minutes are 3,000 minutes, on the $24 pack of 5,000 minutes with 2,000 left. A single interview fits the $6 pack of 500 minutes, and the first 20 minutes on your first visit are free.
Should I mix the guest's and interviewer's recorders?
If both wore a DR-10L, yes. Align the two files in an audio editor, mix them to one, and upload that so the questions and answers sit in one transcript.
How big may one interview file be?
A DR-10L file may reach 10 hours or 5 GB. Before you buy a pack, files to 2 GB upload; bigger ones start once a pack is on the account.
What if the interview is in another language?
Detection covers 99 languages, so there is nothing to pick for a narrator. A narrator who speaks Afrikaans, Spanish or Japanese needs no setting, and an interview that switches language is detected on the main one.
Which formats come back, and who can hear the interview?
Each interview downloads as TXT, DOCX, SRT, VTT and JSON. Narrators' stories stay out of anyone's model: recordings are transcribed on our own servers and are never used for training.
Related
Interview recorders and long interviews
Send the interview from the DR-10L. A narrator's first 20 minutes are free.
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