SonaFactEvidence from audio
SonaFactEvidence from audio

Convert 3GP to MP3

Older phones and many Android voice recorders save 3GP — sometimes with video, sometimes sound only. Here you get the sound as an MP3 (128 kb/s).

Your file never leaves your device. It is converted right here, in your browser — nothing is uploaded.

or drop it here

Want the text of this recording?

Upload it to SonaFact: the file you just made goes straight there, no need to choose it again. Speakers are separated and every line plays back from its moment. 3 transcriptions a day free, no card.

Get the transcript

How to convert 3GP to MP3

  1. Choose your 3GP file with the button above, or drop it onto the box.
  2. Press “Convert to MP3”. The file is converted on your device, and a progress bar shows how far along it is.
  3. Listen to the result and download the MP3 file.

Questions

What sound is inside a 3GP file?
Usually AMR (voice recorders and calls) or AAC (videos and newer recorders). The tool reads both.
My 3GP file is a video — does that work?
Yes. The tool takes only the sound; the picture is left out.
Will the MP3 sound better than the 3GP?
No. AMR is made for phone calls and keeps only a narrow band of the voice; MP3 keeps what was recorded but can’t add what wasn’t. It will play everywhere, though.
Are my files uploaded anywhere?
Your file never leaves your device. It is converted right here, in your browser — nothing is uploaded.

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