I am not sure exactly what you mean by "sound recorder" but
Audacity can record sounds and save them to a variety of formats. With it you can record your own sounds, manipulate them later all sorts of things. I even made an audio CD with my wife using song tracks and a microphone and mixer. It is a great program.
If you want to give it a try it is in the Ubuntu repositories just do a
Code:
sudo apt install audacity
to get it.