How to uninstall libao4 from Ubuntu

Uninstall libao4

To uninstall just libao4 package itself from Ubuntu execute on terminal:

sudo apt-get remove libao4

Uninstall libao4 and it's dependent packages

To uninstall the libao4 package and any other dependant package which are no longer needed on Ubuntu.

sudo apt-get autoremove libao4

Purging libao4

If you also want to delete configuration and/or data files of libao4 from Ubuntu then this will work:

sudo apt-get purge libao4

To delete configuration and/or data files of libao4 and it's dependencies from Ubuntu then execute:

sudo apt-get autoremove --purge libao4

libao4 package information

name libao4
section libs
description

Cross Platform Audio Output Library

website www.xiph.org/ ao/ 
maintainer ubuntu-devel-discuss@lists.ubuntu.com

More information about apt-get remove

Advanced Package Tool, or APT, is a free software user interface that works with core libraries to handle the installation and removal of software on Debian, Ubuntu and other Linux distributions. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software packages, either from precompiled files or by compiling source code.

apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT library.

apt-get remove is identical to install except that packages are removed instead of installed. Note that removing a package leaves its configuration files on the system. If a plus sign is appended to the package name (with no intervening space), the identified package will be installed instead of removed.

See Also

How to install libao4 package on Ubuntu