Thousands of Sonix customers convert their Japanese GSM files to text 
What's the best way to convert Japanese GSM files to text? 
Use Sonix to convert Japanese GSM files to text
Follow these six easy steps to quickly and easily convert your Japanese GSM 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 GSM file
In Sonix, click “Upload” and locate the Japanese GSM 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 GSM file
Sonix automatically transcribes your Japanese GSM 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 GSM file to text!
How to improve the accuracy of your Japanese transcripts?
Start by improving the quality of the Japanese GSM 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 GSM file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Japanese GSM file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from GSM, 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 
The accuracy for the translation was the best from all the other sites and apps I tried.
You saved me! I got everything done in three days and I was sure it will take me a month.
The fact that your service can export text as subtitles and can match the subtitles to the paragraphs in the transcript is just great! Also, the text editor is just awesome. The fact it bonds text and timing in the video so I can check and compare what was pronounced and what was recognized is truly fantastic.
This software is still the best one out there for the German language.
I absolutely loved how well the software was able to distinguish between individual speakers. Exceptional product and well-polished.
I have a 30-40 minute commute to work and like to dictate memos and other brief documents along the way–but I haven't had an easy way to get them transcribed...until now. Thanks Sonix!
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Convert Japanese GSM files to text 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 uses advanced transcription and translation algorithms to convert your Japanese GSM 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