Thousands of Sonix customers convert their Japanese M4A files to text 
What's the best way to convert Japanese M4A files to text? 
Use Sonix to convert Japanese M4A files to text
Follow these six easy steps to quickly and easily convert your Japanese M4A 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 M4A file
In Sonix, click “Upload” and locate the Japanese M4A 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 M4A file
Sonix automatically transcribes your Japanese M4A 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 M4A file to text!
How to improve the accuracy of your Japanese transcripts?
Start by improving the quality of the Japanese M4A 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 M4A file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Japanese M4A file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from M4A, 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 tried 4 other services, and Sonix is the easiest to use, most accurate, and more reasonably priced for the quality.
I was surprised in the accuracy from the audio to script. Out of 3 transcripts, only one had to be adjusted. Perfect!!
This is the greatest transcription service I've ever seen. I am so pleased with the results and I am recommending your services 100 out of 10.
Sonix saves me 60% of the time editing. No more manual trascription nightmare with writing down timecodes, and sending emails. I think you are changing the game here! Bravo :)
I LOVE Sonix.
Very cool and fascinating too. Ahh the power of algorithms. I can tell you that I love the overall UI experience because it's pretty, dumbed down, and very easy for me to use. I've done a lot of radio and this service would be invaluable for that kind of work.
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Convert Japanese M4A 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 M4A 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