Online M4A to OPUS, you can put the M4A to OPUS format on your computer, tablet or mobile phone without downloading any software!
Step 1
Upload M4A file
Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2
Select 'OPUS'
Select output OPUS or any other format as the conversion result (click the Convert button)
Step 3
Download your M4A file
After the conversion you can download your OPUS file and upload it to Google Drive, Dropbox.
m4a : MPEG-4 Audio Layer
M4A is an audio file format that is very similar to MP4. It is a proprietary file format of Apple. iTunes store contains the audios as M4A format. It uses MPEG-4 codec to contain audio files. One of the basic differences between M4A and MP4 is M4A does not contain videos like MP4.
Opus is a sound encoding format, and Opus's predecessor was the celt encoder. Developed by the IETF for real-time voice transmission over the network, the standard format is RFC 6716.