Online ASF to AMR, you can put the ASF to AMR format on your computer, tablet or mobile phone without downloading any software!
Step 1
Upload ASF file
Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2
Select 'AMR'
Select output AMR or any other format as the conversion result (click the Convert button)
Step 3
Download your ASF file
After the conversion you can download your AMR file and upload it to Google Drive, Dropbox.
asf : Advanced Systems Format
Is a multimedia container format from Microsoft, which stores video and audio file streams. Distinctive feature is a the lack of information on the coding data. The container defines the structure of the stream so it can, like AVI, contain videos with different codecs, as well as operate during synchronization of streams.
AMR files are compressed audio files which are often used by cell phones. This files can contain voice recordings or voicebox messages for example. The format was developed by Ericsson.