I can certainly reproduce this issue on a stock installation of Ubuntu 18.04 where the default media player chokes on amr files:
There are a variety of ways to fix this issue but in my opinion you are best to install vlc from the Ubuntu Repository. Open a Terminal window and run the following:
sudo apt-get install vlc
This will play amr / 3gp files with no issues from the File --> Open
command but if you wish to open these files from a double click a little more work will be required.
Navigate to your amr file and:
- Right click on the file and select 'Properties'
- Select 'Open With...'
- Scroll down to 'vlc' and select it
- Click on 'Set as default...'
And then you should be able to double click on your amr file and have it play in vlc. Below is screenshot illustrating the final steps mentioned above:
And now you can play your amr files directly in vlc with a simple double click!
References:
- A sample amr file for experimentation can be found here...
sudo apt-get install ffmpeg
, also I recommend you mpv and vlc as a video players:sudo apt-get install vlc mpv
- choose one that fits you most