This simple script can make your kali linux machine's sound louder than the default maximum volume.
● git clone https://github.com/SOUROVKHANNAHID/SoundBooster-Kali.git
● cd SoundBooster-Kali
● chmod 777 soundup.sh
● cp soundup.sh /bin/
Here we copied the script to the directory bin. By this way we can execute this script from any location.
Open terminal and execute the script using the following command
● soundup.sh