How to convert M4V 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 M4V file and help you create captions for your videos in minutes.

Convert M4V to captions
Free trial—30 minutes free credit included

How do I accurately convert my M4V files to closed captions? 📋

Sonix uses the latest automated transcription technology to convert your video files (*.m4v) to closed captions. Follow these six steps and see how magical it is:

Step 1: Create a free Sonix account to start converting your M4V file to a closed caption file

Step 1

Sign up for a free Sonix trial account—includes 30 minutes of free M4V to captions conversion.

Step 2: Upload your M4V files from your computer, Google Drive, Dropbox, or by dragging it on the page.

Step 2

Upload the iTunes Video File file(s) (*.M4V) from your computer, Dropbox, Google Drive, or by dragging it on the page.

Step 3: Select the language spoken in your M4V file, then click 'Start Transcribing Now.'

Step 3

Choose the language spoken in the uploaded M4V 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 M4V file and convert it to SRT.

Step 4

Sonix will then automatically transcribe the audio from your M4V file and convert it to a simple text format. Grab a cupcake, it will take only a few minutes.

Step 5: Once your M4V 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 M4V 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 M4V file. You can also adjust the character length and time duration length of each caption.

That's it! Your M4V file has now been converted to closed captioning and is ready for the next step in your workflow!🎉

Thousands of customers create closed captions from their M4V files with Sonix 💖

  • Google converts their M4V video files to closed captions with Sonix
  • Microsoft converts their M4V video files to closed captions with Sonix
  • NBC Universal converts their M4V video files to closed captions with Sonix
  • ESPN converts their M4V video files to closed captions with Sonix
  • Stanford University converts their M4V video files to closed captions with Sonix
  • Yale University converts their M4V video files to closed captions with Sonix
  • University of California in Los Angeles (UCLA) converts their M4V video files to closed captions with Sonix
  • ABC News converts their M4V video files to closed captions with Sonix
  • Quartz converts their M4V video files to closed captions with Sonix
  • CNBC converts their M4V video files to closed captions with Sonix
  • CIBC converts their M4V video files to closed captions with Sonix
  • Princeton University converts their M4V video files to closed captions with Sonix

Convert M4V video files to subtitle🎥

Frequently Asked Questions for iTunes Video File (*.M4V)

What is a M4V file?

M4V files were developed by Apple and are very similar to the MP4 file format. However, a file with the M4V file extension is called an iTunes Video file (MPEG-4 video file). Some of the M4V files that you’ll encounter may have DRM copyright protection to prevent unauthorized distribution and copying of the video. These files are typically downloaded from iTunes. You can try uploading them to Sonix and we’ll only be able to transcribe M4V files that do not have DRM protection.

Does Sonix transcribe video files with a *.M4V file extension?

Yes, Sonix does automatically transcribe video files with a .M4V file extension. Sonix is an online video to text converter. Convert any audio (mp3, m4a, wav, ...) or video (m4v, mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.M4V files and converts them to text in a subtitle format.

Know anyone who needs to convert iTunes Video File (.M4V) to subtitle?

We'd appreciate it if you tell them about Sonix—the best way to convert M4V to subtitle.

Tell your friends about Sonix:

Create closed captions from your iTunes Video File files with Sonix 🚀

Sonix automatically transcribes and translates your audio and video files in over 37 languages. Easily search, edit, and share your media files. Sonix is an online, fully-automated speech to text service that quickly converts iTunes Video File files to captions. Fast, accurate, and affordable. Millions of users from all over the world.

Fast, accurate automated transcription

Includes 30 minutes of free transcription

Let our support team help you with all of your automated transcription questions. Pictured: Christine Lee

Transcribe and translate confidently knowing you’re backed by our award-winning team who is ready to answer your questions. Get immediate help by visiting our Help Center, resources, tutorials, and Introduction to Sonix videos.

Visit our Help Center