How to convert 3GP to closed captions with Sonix

Sonix converts your audio-to-text using the latest artificial intelligence algorithms—it's fast, easy, beautiful, and affordable. We extract the speech from your 3GP file and help you create captions for your videos in minutes.

Convert 3GP to captions
Free trial—30 minutes free credit included

How to convert 3GP to closed captions with automated transcription 📋

Step 1: Create a free Sonix account to start converting your 3GP file to a closed caption file

Step 1

Sign up for a free Sonix trial account—includes 30 minutes of free 3GP to captions conversion.

Step 2: Upload your 3GP files from your computer, Google Drive, Dropbox, or by dragging it on the page.

Step 2

Upload the 3GPP Multimedia File file(s) (*.3GP) from your computer, Dropbox, Google Drive, or by dragging it on the page.

Step 3: Select the language spoken in your 3GP file, then click 'Start Transcribing Now.'

Step 3

Choose the language spoken in the uploaded 3GP file. We support over 37 different languages including Russian, Chinese, Spanish, and English. Click the 'Start Transcribing Now' button.

Step 4: Sonix does all the work so grab a tasty cupcake. Our servers will extract the audio from your 3GP file and convert it to SRT.

Step 4

Sonix will then automatically transcribe the audio from your 3GP file and convert it to a simple text format. Grab a cupcake, it will take only a few minutes.

Step 5: Once your 3GP was converted to text, you might need to polish up the transcript. Now, you can easily do that with our AudioText Editor.

Step 5

Use the Sonix AudioText Editor to polish your transcript before we convert it to a caption file. Simply type in your browser to correct any words in your transcript.

Step 6: Download a SRT version of your 3GP file by clicking Export and selecting 'Subrip caption file (.srt).'

Step 6

Click the 'Export' button. Choose either 'Subrip subtitle file (.srt)' or 'WebVTT file (.vtt)' from the dropdown to download the closed caption version of your 3GP file. You can also adjust the character length and time duration length of each caption.

That's it! Your 3GP file has now been converted to closed captioning and is ready for the next step in your workflow!🎉

Thousands of incredible customers use SOnix to create closed captions from their 3GP files 💖

  • Google converts their 3GP video files to closed captions with Sonix
  • Microsoft converts their 3GP video files to closed captions with Sonix
  • NBC Universal converts their 3GP video files to closed captions with Sonix
  • ESPN converts their 3GP video files to closed captions with Sonix
  • Stanford University converts their 3GP video files to closed captions with Sonix
  • Yale University converts their 3GP video files to closed captions with Sonix
  • University of California in Los Angeles (UCLA) converts their 3GP video files to closed captions with Sonix
  • ABC News converts their 3GP video files to closed captions with Sonix
  • Quartz converts their 3GP video files to closed captions with Sonix
  • CNBC converts their 3GP video files to closed captions with Sonix
  • CIBC converts their 3GP video files to closed captions with Sonix

Convert 3GP video files to subtitle🎥

Frequently Asked Questions for 3GPP Multimedia File (*.3GP)

What is a 3GP file?

The 3GP file was created by the 3rd Generation Partnership Project Group (3GPP). It is primarily designed for transmitting multimedia files taken by cell phone videos and sending them over the Internet. 3GP is the required, standard format for media files sent using Multimedia Messaging Service (MMS) and Multimedia Broadcast Multicast Services (MBMS). Thus, the 3GP video container format was developed with the intention to save on disk space, bandwidth, and data usage, which is why they're often seen created from, and transferred between, mobile devices.

Does Sonix transcribe video files with a *.3GP file extension?

Yes, Sonix does automatically transcribe video files with a .3GP file extension. Sonix is an online video to text converter. Convert any audio (mp3, m4a, wav, ...) or video (3gp, mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.3GP files and converts them to text in a subtitle format.

Know anyone who needs to convert 3GPP Multimedia File (.3GP) to subtitle?

We'd appreciate it if you tell them about Sonix—the best way to convert 3GP to subtitle.

Tell your friends about Sonix:

Create closed captions from your 3GPP Multimedia File files with Sonix 🚀

Sonix transcribes your audio and video files in over 37 languages so they are easy to search, edit, and share. Sonix is an online, fully-automated speech to text service that quickly converts 3GPP Multimedia File files to captions. Sign up today and start transcribing.

Fast, accurate automated transcription

Includes 30 minutes of free transcription

Transcribe and translate confidently knowing you’re backed by our award-winning team who is ready to answer your questions. You can also visit our Support Center for tips, articles, and videos.

Visit our Help Center