Thousands of Sonix customers convert their Bulgarian M4A files to text 
What's the best way to convert Bulgarian M4A files to text? 
Use Sonix to convert Bulgarian M4A files to text
Follow these six easy steps to quickly and easily convert your Bulgarian 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 Bulgarian M4A file
In Sonix, click “Upload” and locate the Bulgarian M4A file on your computer.
Step 3: Choose language: Bulgarian
Select Bulgarian 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 Bulgarian M4A file and converts it to Bulgarian text.
Step 5: Polish your Bulgarian transcript
Edit your Bulgarian transcript by typing directly into your browser to correct any words that were not transcribed perfectly.
Step 6: Export Bulgarian text
Export the Bulgarian text to any format you want including MS Word, PDF, subtitles, or a simple text file.
All done! You have now successfully converted your Bulgarian M4A file to text!
How to improve the accuracy of your Bulgarian transcripts?
Start by improving the quality of the Bulgarian 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 Bulgarian M4A file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Bulgarian 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 Bulgarian with Sonix:
What customers say about Sonix's automated transcription 
I really enjoyed how quickly and accurate the transcription system was. Will definitely use again in the future. I have recommended you to a friend.
The whole thing is the best I've ever seen! I was amazed at how well this worked at transcribing and translating!
Sonix provided the best transcription of all the platforms I have tested so far.
Way better than other transcription services I've tried. It will save me a lot of time. I'd recommend it to everyone I know.
I have tested your product among others, and I have to say, Sonix provides the best results, a really great product!!!
Sonix is easy to use. Ridiculously easy. And even though the accuracy wasn't perfect it saved several days in a typical transcription cycle and the hourly cost we usually pay.
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Convert Bulgarian M4A files to text with Sonix 
Sonix automatically transcribes and translates your audio and video files in over 38 languages. Easily search, edit, and share your media files. Sonix uses advanced transcription and translation algorithms to convert your Bulgarian 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