fft-float command not found

Introduction

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

fft-float: command not found

or when using sudo you get the following error message

sudo: fft-float: command not found

Solutions to fft-float: command not found

How To Fix fft-float: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu fft-float is provided by kissfft-tools package.

kissfft-tools is:

There are many great fft libraries already around. Kiss FFT is not trying to be better than any of them. It only attempts to be a reasonably efficient, moderately useful FFT that can use fixed or floating data types and can be incorporated into someone’s C program in a few minutes with trivial licensing.

This package installs CLI tools by kissfft.

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

sudo apt-get -y install kissfft-tools

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

You can also use apt command to install kissfft-tools.

sudo apt -y install kissfft-tools

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

sudo aptitude install kissfft-tools

Summary

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