Thousands of Sonix customers convert their Chinese (Cantonese) M4V files to text 
What's the best way to convert Chinese (Cantonese) M4V files to text? 
Use Sonix to convert Chinese (Cantonese) M4V files to text
Follow these six easy steps to quickly and easily convert your Chinese (Cantonese) 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 Chinese (Cantonese) M4V file
In Sonix, click “Upload” and locate the Chinese (Cantonese) M4V file on your computer.
Step 3: Choose language: Chinese (Cantonese)
Select Chinese (Cantonese) 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 Chinese (Cantonese) M4V file and converts it to Chinese (Cantonese) text.
Step 5: Polish your Chinese (Cantonese) transcript
Edit your Chinese (Cantonese) transcript by typing directly into your browser to correct any words that were not transcribed perfectly.
Step 6: Export Chinese (Cantonese) text
Export the Chinese (Cantonese) text to any format you want including MS Word, PDF, subtitles, or a simple text file.
All done! You have now successfully converted your Chinese (Cantonese) M4V file to text!
How to improve the accuracy of your Chinese (Cantonese) transcripts?
Start by improving the quality of the Chinese (Cantonese) 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 Chinese (Cantonese) M4V file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Chinese (Cantonese) 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 Chinese (Cantonese) with Sonix:
What customers say about Sonix's automated transcription 
I have tested your product among others, and I have to say, Sonix provides the best results, a really great product!!!
The UI is da bomb with so many great features including the one where I can highlight a passage and download as a clip. So very useful! It’s editing and transcription combined!!
The accuracy for the translation was the best from all the other sites and apps I tried.
Seriously the best transcript I’ve ever seen. And the synchronized editor is amazing. I will be using again and I will be sharing with my friends :)
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.
The accuracy of the AI voice recognition is amazing! Sonix is by far the most accurate of the 5 or 6 services that I tested.
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Convert Chinese (Cantonese) 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 Chinese (Cantonese) 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