Thousands of Sonix customers convert their Portuguese M4V files to text 
What's the best way to convert Portuguese M4V files to text? 
Use Sonix to convert Portuguese M4V files to text
Follow these six easy steps to quickly and easily convert your Portuguese M4V 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 M4V file
In Sonix, click “Upload” and locate the Portuguese M4V 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 M4V file
Sonix automatically transcribes your Portuguese M4V 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 M4V file to text!
How to improve the accuracy of your Portuguese transcripts?
Start by improving the quality of the Portuguese M4V 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 M4V file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Portuguese M4V file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from M4V, 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 
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.
The entire process is extremely straightforward and what I liked most was the accuracy of the transcriptions and translations. I must say, I had some doubts as to what the quality would be like since it was in French, but I was not disappointed in the least.
I was surprised in the accuracy from the audio to script. Out of 3 transcripts, only one had to be adjusted. Perfect!!
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.
I have a 30-40 minute commute to work and like to dictate memos and other brief documents along the way–but I haven't had an easy way to get them transcribed...until now. Thanks Sonix!
The UI experience is fantastic! It's quick and easy to understand. Plus it's web based so I can switch between my desktop and laptop easily.
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Convert Portuguese M4V 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 M4V 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