Thousands of Sonix customers convert their Spanish MK3D files to text 
What's the best way to convert Spanish MK3D files to text? 
Use Sonix to convert Spanish MK3D files to text
Follow these six easy steps to quickly and easily convert your Spanish MK3D 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 Spanish MK3D file
In Sonix, click “Upload” and locate the Spanish MK3D file on your computer.
Step 3: Choose language: Spanish
Select Spanish in the dropdown that asks 'What language was spoken?.' Then, click the “Transcribe” button.
Step 4: Sonix transcribes your MK3D file
Sonix automatically transcribes your Spanish MK3D file and converts it to Spanish text.
Step 5: Polish your Spanish transcript
Edit your Spanish transcript by typing directly into your browser to correct any words that were not transcribed perfectly.
Step 6: Export Spanish text
Export the Spanish text to any format you want including MS Word, PDF, subtitles, or a simple text file.
All done! You have now successfully converted your Spanish MK3D file to text!
How to improve the accuracy of your Spanish transcripts?
Start by improving the quality of the Spanish MK3D 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 Spanish MK3D file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Spanish MK3D file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from MK3D, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Spanish with Sonix:
What customers say about Sonix's automated transcription 
Faster than my captioning department and so easy to create subtitles!
Sonix is light years ahead of all the other solutions I researched and tried!
It’s super easy to use and I was so impressed how fast the transcription came back. I love that you can listen to the recording while following along with the transcripts. I also like you can download the transcripts.
Sonix is simple and very easy to use and the results were very nearly perfect. I would definitely recommended the site to anyone who asks me.
You saved me! I got everything done in three days and I was sure it will take me a month.
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.
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Convert Spanish MK3D 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 Spanish MK3D 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