qpaeq command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

qpaeq: command not found

or when using sudo you get the following error message

sudo: qpaeq: command not found

Solutions to qpaeq: command not found

How To Fix qpaeq: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu qpaeq is provided by pulseaudio-equalizer package.

pulseaudio-equalizer is:

PulseAudio, previously known as Polypaudio, is a sound server for POSIX and WIN32 systems. It is a drop in replacement for the ESD sound server with much better latency, mixing/re-sampling quality and overall architecture.

This package provides an equalizer sink and an interface to configure the equalizer, qpaeq.

The module is called module-equalizer-sink.

To fix this problem, we can install more using the command below.

sudo apt-get -y install pulseaudio-equalizer

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install pulseaudio-equalizer.

sudo apt -y install pulseaudio-equalizer

Or if you have aptitude installed you can use the following command.

sudo aptitude install pulseaudio-equalizer

Summary

In this tutorial we learn how to fix qpaeq command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.