freedv command not found

Introduction

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

freedv: command not found

or when using sudo you get the following error message

sudo: freedv: command not found

Solutions to freedv: command not found

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

In Ubuntu freedv is provided by freedv package.

freedv is:

FreeDV is a digital voice mode intended for transmission and reception over high-frequency (HF) radio. It uses a frequency division multiplex (FDM) modem with 15 carriers and no forward error correction (FEC). A low bit-rate voice coder-decoder (Codec 2) provides voice quality without the listener fatigue caused by noise and interference normally associated with analog single sideband (SSB) voice. A HF SSB transceiver, personal computer and two sound cards are required. Path simulation and on-the-air HF testing have shown that decoding voice is possible at a signal-to-noise ratio of 4 dB.

The FreeDV software was developed by David Rowe (Codec 2, FDM modem implementation, integration) and David Witten (GUI, architecture design). The FreeDV design and user interface was based on the earlier FDMDV program which was developed by Francesco Lanza. The FDM modem design and development was supported from Peter Martinez.

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

sudo apt-get -y install freedv

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

You can also use apt command to install freedv.

sudo apt -y install freedv

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

sudo aptitude install freedv

Summary

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