jaaa software package provides audio signal generator and spectrum analyser, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install jaaa
jaaa is installed in your system.
Make ensure the jaaa package were installed using the commands given below,
$ sudo dpkg-query -l | grep jaaa *
You will get with jaaa package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Sound |
| Package | jaaa |
| Version | 0.8.4-1build1 |
| Description | audio signal generator and spectrum analyser |
| Sub Section | Sound |