Thousands of Sonix customers convert their Czech M4V files to text 
What's the best way to convert Czech M4V files to text? 
Use Sonix to convert Czech M4V files to text
Follow these six easy steps to quickly and easily convert your Czech 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 Czech M4V file
In Sonix, click “Upload” and locate the Czech M4V file on your computer.
Step 3: Choose language: Czech
Select Czech 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 Czech M4V file and converts it to Czech text.
Step 5: Polish your Czech transcript
Edit your Czech transcript by typing directly into your browser to correct any words that were not transcribed perfectly.
Step 6: Export Czech text
Export the Czech text to any format you want including MS Word, PDF, subtitles, or a simple text file.
All done! You have now successfully converted your Czech M4V file to text!
How to improve the accuracy of your Czech transcripts?
Start by improving the quality of the Czech 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 Czech M4V file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Czech 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 Czech with Sonix:
What customers say about Sonix's automated transcription 
The accuracy, that's what I like the most.
This software is still the best one out there for the German language.
I am impressed by the almost perfect accuracy of the conversion and the speed by which the transcription was completed. Your web display is also impressive with clear and easy-to-use links.
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.
Your product is amazing and transcribed my files almost all accurately!
I tried several programs and Sonix was by far the best one.It gave me very accurate scripts
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Convert Czech 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 Czech 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