Thousands of Sonix customers convert their Japanese OPUS files to text 
What's the best way to convert Japanese OPUS files to text? 
Use Sonix to convert Japanese OPUS files to text
Follow these six easy steps to quickly and easily convert your Japanese OPUS files to text:
Step 1: Log into your Sonix account
If you don't have one, you can sign up for Sonix's free account—30 minutes of free transcription/translation.
Step 2: Upload your Japanese OPUS file
In Sonix, click “Upload” and locate the Japanese OPUS file on your computer.
Step 3: Choose language: Japanese
Select Japanese in the dropdown that asks 'What language was spoken?.' Then, click the “Transcribe” button.
Step 4: Sonix transcribes your OPUS file
Sonix automatically transcribes your Japanese OPUS file and converts it to Japanese text.
Step 5: Polish your Japanese transcript
Edit your Japanese transcript by typing directly into your browser to correct any words that were not transcribed perfectly.
Step 6: Export Japanese text
Export the Japanese text to any format you want including MS Word, PDF, subtitles, or a simple text file.
All done! You have now successfully converted your Japanese OPUS file to text!
How to improve the accuracy of your Japanese transcripts?
Start by improving the quality of the Japanese OPUS file that you upload to Sonix. Please use high quality recording equipment, recording in a quiet environment, and ensure that your speakers are speaking clearly to ensure that your transcript is as accurate as possible.
Any advice for the Japanese OPUS file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Japanese OPUS file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from OPUS, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Japanese with Sonix:
What customers say about Sonix's automated transcription 
I had been using Dragon voice recognition software, but Sonix eliminates that step all together. I absolutely love Sonix.
I'm very impressed about the accuracy. The transcript needs a little editing, but just minor correction. I think the interface is straightforward and user-friendly. I also like the audio-transcript matching playback functionality. I've been very deterred to use recording during my interviews because it takes a tremendous amount of time to transcribe.
I loved my experience cause Sonix has a really good tutorial and it got the words from the audio pretty well. It really did it what I needed really fast, even if it was the first time using it.
After trying a few other trial software, Sonix was by far the best and most correct.
The recording I transcribed was poor quality at best, so I was pleasantly surprised by how accurately Sonix captured the text. And your editor is absolutely brilliant!
The accuracy of the AI voice recognition is amazing! Sonix is by far the most accurate of the 5 or 6 services that I tested.
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Convert Japanese OPUS files to text with Sonix 
Sonix automatically transcribes and translates your audio/video files in 53+ languages. Easily search, edit, and share your media files. Sonix uses advanced transcription and translation algorithms to convert your Japanese OPUS files to text both fast and accurate. Fast, accurate, and affordable. Millions of users from all over the world.
Includes 30 minutes of free transcription