KMix
Volume control and mixer
KMix is a sound channel mixer and volume control.
KMix is an audio device mixer, used to adjust volume, select recording inputs, and set other hardware options. . This package is part of the KDE multimedia module.
How to install KMix in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install kmix in Ubuntu
sudo apt install kmix