Thousands of Sonix customers convert their Portuguese MP4 files to text 
What's the best way to convert Portuguese MP4 files to text? 
Use Sonix to convert Portuguese MP4 files to text
Follow these six easy steps to quickly and easily convert your Portuguese MP4 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 Portuguese MP4 file
In Sonix, click “Upload” and locate the Portuguese MP4 file on your computer.
Step 3: Choose language: Portuguese
Select Portuguese in the dropdown that asks 'What language was spoken?.' Then, click the “Transcribe” button.
Step 4: Sonix transcribes your MP4 file
Sonix automatically transcribes your Portuguese MP4 file and converts it to Portuguese text.
Step 5: Polish your Portuguese transcript
Edit your Portuguese transcript by typing directly into your browser to correct any words that were not transcribed perfectly.
Step 6: Export Portuguese text
Export the Portuguese text to any format you want including MS Word, PDF, subtitles, or a simple text file.
All done! You have now successfully converted your Portuguese MP4 file to text!
How to improve the accuracy of your Portuguese transcripts?
Start by improving the quality of the Portuguese MP4 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 Portuguese MP4 file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Portuguese MP4 file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from MP4, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Portuguese with Sonix:
What customers say about Sonix's automated transcription 
I'm very impressed about the accuracy. The transcript needs a little editing, but just minor correction. I think the interface is straightforward and user-friendly. I also like the audio-transcript matching playback functionality. I've been very deterred to use recording during my interviews because it takes a tremendous amount of time to transcribe.
Sonix is so easy to use, and the quality is impressive in almost all languages we have tested so far. Punctuation is especially amazing compared to other platforms, even the tech giants (Google, Microsoft…).
Easy to use and it saved me SO much time transcribing.
Amazed by the software even in quite mixed audio!
I loved how accurate you are even in Dutch!
Thank you for all of your help with my dissertation!!! Ya'll rock!!
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Convert Portuguese MP4 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 Portuguese MP4 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