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3GP to text

3GP to text

Upload a 3GP file and read the speech in it. 3GP is the small mobile container from feature phones and early smartphones, for both video and audio. It is accepted directly, and old family or interview clips are the usual reason to have one.

Free preview: one file up to 15 minutes and 25 MB, 3 tries a day, no account needed.

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What 3GP is

3GP was made for the first mobile networks, where space and bandwidth were tight. It is a cut-down MP4: small, low resolution video with narrowband audio (often AMR). Some audio-only voice recordings are saved as .3gp too. Because the audio is narrowband, treat results the same way as for AMR files.

Why people still have them

  • Old phone video of events, interviews and family memories being digitised.
  • Voice recorders on older Android phones.
  • Archives from feature phones that are only now being transcribed.

Steps

  1. Copy the .3gp from the phone, memory card or backup.
  2. Choose it above; no conversion.
  3. Listen back while reading, correct the text, export.

Limits and expectations

The files are small, usually well under the 25 MB size cap, so the 15-minute no-account length limit is the one to watch. Old recordings also tend to be noisy and quiet, so accuracy will be below a modern recording of the same voice. For heritage material it is worth a human pass on names and places.

How it works

  1. Add a recording

    Drop in a video or audio file, choose one from your device, or record from the microphone. Nothing to install.

  2. It transcribes

    Speech becomes timestamped text, with speaker labels when more than one person talks.

  3. Read, fix, export

    Click any line to correct it, then download TXT, subtitles, Markdown, JSON or CSV.

Questions

Do I need to convert 3GP to MP4?
No.
Why is the picture ignored?
Only the audio track is transcribed.
Can it handle a very quiet old recording?
It will try; very quiet or distorted audio produces gaps and guesses. Increasing the volume in an editor first can help a little.
Is it free?
Yes — one file up to 15 minutes and 25 MB with no account, up to 3 tries a day. A free account keeps your transcripts in a library and lifts the guest limits; the current limits and paid plans are on the pricing page.
What can I export?
Plain text, timestamped text, SRT, VTT, Markdown, JSON with word timings and CSV, all from the same edited transcript.

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