How to convert OPUS to closed captions with automated transcription
Sign up for a free Sonix trial account—includes 30 minutes of free OPUS to captions conversion.
Upload the Opus Audio File file(s) (*.OPUS) from your computer, Dropbox, Google Drive, or by dragging it on the page.
Choose the language spoken in the uploaded OPUS file. We support over 37 different languages including Russian, Chinese, Spanish, and English. Click the 'Start Transcribing Now' button.
Sonix will then automatically transcribe the audio from your OPUS file and convert it to a simple text format. Grab a cupcake, it will take only a few minutes.
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.
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 OPUS file. You can also adjust the character length and time duration length of each caption.
That's it! Your OPUS 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 OPUS files
Convert OPUS audio or speech to subtitle
Frequently Asked Questions for Opus Audio File (*.OPUS)
What is a OPUS file?
The OPUS file is an audio file format that was created for use in Voice over IP (VoIP), video conferencing, or in-game chat. Since the OPUS codec is primarily used in Internet streaming applications, it isn't common. However, is it a lossy audio format that uses both SILK (used by Skype) and CELT (from Xiph.Org) codecs and supports variable bit rates from 6 kb/s to 510 kb/s.
Does Sonix transcribe audio files with a *.OPUS file extension?
Yes, Sonix does automatically transcribe audio files with a .OPUS file extension. Sonix is an online audio to text converter. Convert any audio (opus, mp3, m4a, wav, ...) or video (mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.OPUS files and converts them to text in a subtitle format.
Know anyone who needs to convert Opus Audio File (.OPUS) to subtitle?
We'd appreciate it if you tell them about Sonix—the best way to convert OPUS to subtitle.
Other ways to convert your OPUS audio files with Sonix
Create closed captions from your Opus Audio 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 Opus Audio File files to captions. Sign up today and start transcribing.
Includes 30 minutes of free transcription