jmeters software package provides multichannel audio level meter, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install jmeters
jmeters is installed in your system.
Make ensure the jmeters package were installed using the commands given below,
$ sudo dpkg-query -l | grep jmeters *
You will get with jmeters package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Sound |
| Package | jmeters |
| Version | 0.4.1-3 |
| Description | multichannel audio level meter |
| Sub Section | Sound |