SonaFactEvidence from audio
SonaFactEvidence from audio

Convert MP3 to text

Upload an MP3 recording and get a transcript with speakers told apart and a timestamp on every word. Check it in the editor while the audio plays, then export it.

Upload your file

The file stays in your browser until you create a free account — no card needed.

Drop audio or video here
MP3 · WAV · M4A · MP4 · MKV · OGG · FLAC · WMA · OPUS · OGA · AMR · 3GP · WEBM · MOV · AAC · M4V
Upload only recordings you have the right to use. Record other people only with their consent.
45 min ≈ 4 min

Three transcripts a day on the free plan, up to 30 minutes each.

About MP3 recordings

MP3 is the most common compressed audio format — voice recorders, podcast downloads and call recordings often come as MP3. Upload the file as it is; there is nothing to convert first.

Three steps from recording to finished work

  1. Upload anything recorded. Audio or video — up to 30 minutes per file on Free, 3 hours on Starter, 6 on Pro and 10 on Studio. The language and the number of speakers are detected for you, or you set them yourself when you already know. You can also record straight in the browser.
  2. Review in the editor. Play it back with the line highlighted, fix a word, rename a speaker everywhere, move a line to the right person.
  3. Turn it into finished work. Export DOCX or PDF, generate minutes, action items, subtitles, chapters or a call report.

Pricing →

Other formats