Online 3GP to CVSD, you can put the 3GP to CVSD format on your computer, tablet or mobile phone without downloading any software!
Step 1
Upload 3GP file
Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2
Select 'CVSD'
Select output CVSD or any other format as the conversion result (click the Convert button)
Step 3
Download your 3GP file
After the conversion you can download your CVSD file and upload it to Google Drive, Dropbox.
3gp : 3GP Multimedia File
3GP is an audio and video container format that is generally used in 3G cell phones. But it can also work in 2G and 4G cell phones. This MP4 based container broadcasts multimedia files between cell phones over internet.
Continuously Variable Slope Delta modulation is a voice coding method. It is a delta modulation with variable step size (adaptive delta modulation), first proposed by Greefkes and Riemens in 1970