How do I accurately convert my MXF files to closed captions? 
Sonix uses the latest automated transcription technology to convert your video files (*.mxf) to closed captions. Follow these six steps and see how magical it is:
Step 1
Sign up for a free Sonix trial account—includes 30 minutes of free MXF to captions conversion.
Step 2
Upload the Material Exchange Format File file(s) (*.MXF) from your computer, Dropbox, Google Drive, or by dragging it on the page.
Step 3
Choose the language spoken in the uploaded MXF file. We support over 38 different languages including Russian, Chinese, Spanish, and English. Click the 'Start Transcribing Now' button.
Step 4
Sonix will then automatically transcribe the audio from your MXF file and convert it to a simple text format. Grab a cupcake, it will take only a few minutes.
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
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 MXF file. You can also adjust the character length and time duration length of each caption.
That's it! Your MXF 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 MXF files with Sonix 
Frequently Asked Questions for Material Exchange Format File (*.MXF) to subtitle 
What is a MXF file?
MXF files were designed by the Society of Motion Picture and Television Engineers. These MXF files, also known as Material Exchange Format files, are the digital equivalent of video tape. These files contain both audio and video data (and can contain other data in parallel bitstreams). You’ll usually encounter MXF files created by cameras, camcorders, video recorders, and on computers. Special codecs are typically required to decode MXF files, as they aren’t as common as other file formats.
Does Sonix transcribe video files with a *.MXF file extension?
Yes, Sonix does automatically transcribe video files with a .MXF file extension. Sonix is an online video to text converter. Convert any audio (mp3, m4a, wav, ...) or video (mxf, mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.MXF files and converts them to text in a subtitle format.
Know anyone who needs to convert Material Exchange Format File (.MXF) to subtitle?
We'd appreciate it if you tell them about Sonix—the best way to convert MXF to subtitle.
Other ways to convert your MXF video files with Sonix
MXF to text
Use the most accurate speech-to-text technology to convert files: MXF to text.
MXF to docx
Accurately transcribe your MXF file to Microsoft Word Format (docx) so you can bring the transcript into your workflow.
MXF to PDF
Easily transcribe your MXF file to Adobe's Portable Document Format (pdf) so you can share them with colleagues.
MXF to subtitles
Create subtitles for your MXF files to make them more accessible for your audience.
MXF to srt
Quickly create subtitles from your MXF files and save them as SRTs, one of the most widely supported subtitle formats.
MXF to VTT
Create more advanced captions for your MXF files by using the latest caption format VTT (Video Text Tracks).
Add subtitles to MXF files
Quickly and easily add subtitles to your MP4 video files with the power of automated transcription.
Create closed captions from your Material Exchange Format File files with Sonix 
Sonix automatically transcribes and translates your audio/video files in 38+ languages. Easily search, edit, and share your media files. Sonix is an online, fully-automated speech to text service that quickly converts Material Exchange Format File files to captions. Fast, accurate, and affordable. Millions of users from all over the world.
Includes 30 minutes of free transcription
