Thousands of Sonix customers convert their English AAC files to text 
What's the best way to convert English AAC files to text? 
Use Sonix to convert English AAC files to text
Follow these six easy steps to quickly and easily convert your English AAC 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 English AAC file
In Sonix, click “Upload” and locate the English AAC file on your computer.
Step 3: Choose language: English
Select English in the dropdown that asks 'What language was spoken?.' Then, click the “Transcribe” button.
Step 4: Sonix transcribes your AAC file
Sonix automatically transcribes your English AAC file and converts it to English text.
Step 5: Polish your English transcript
Edit your English transcript by typing directly into your browser to correct any words that were not transcribed perfectly.
Step 6: Export English text
Export the English text to any format you want including MS Word, PDF, subtitles, or a simple text file.
All done! You have now successfully converted your English AAC file to text!
How to improve the accuracy of your English transcripts?
Start by improving the quality of the English AAC 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 English AAC file that I upload?
Yes, please do not over-compress or over-filter the audio track of your English AAC file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from AAC, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in English with Sonix:
What customers say about Sonix's automated transcription 
I'm very happy with the experience. The Spanish translations are superb. I'm in awe!
I ran through your software and it is fantastic! For what we need it's a game-changer.
I’m convinced that Sonix at the moment is the best transcription service existing anywhere in the world.
The best service available for my language (Czech) - thank you very much for saving me a LOT of work!
Very impressed of your product. The general concept is ingenious for the task to be accomplished and the implementation is impressive. Your product gives great satisfaction.
I am very impressed with your program. The recording was not crystal clear and yet I received a perfect transcription...Wow! I would recommend this to anyone.
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Convert English AAC 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 English AAC 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
