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 
Sonix is a godsend service boosting my productivity and alleviating a major source of stress in my life.
Your UI and UX was one of the best I've seen. And I've seen a lot of them. Clean, simple, and pretty easy to edit.
Very high quality transcription - very accurate - only took a quick scan/sweep to manually correct/clean up the text.
Sonix is by far the best transcription tool I have ever used.
I've tried your service, and I love it.
I tried Sonix for the first time and I was astonished by the incredibile conversion accuracy.
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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