How To Install freedv on Ubuntu 22.04

In this tutorial we learn how to install freedv on Ubuntu 22.04. freedv is Digital Voice mode for ham radio

Introduction

In this tutorial we learn how to install freedv on Ubuntu 22.04.

What is freedv

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.

There are three methods to install freedv on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install freedv Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install freedv using apt-get by running the following command:

sudo apt-get -y install freedv

Install freedv Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install freedv using apt by running the following command:

sudo apt -y install freedv

Install freedv Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install freedv using aptitude by running the following command:

sudo aptitude -y install freedv

How To Uninstall freedv on Ubuntu 22.04

To uninstall only the freedv package we can use the following command:

sudo apt-get remove freedv

Uninstall freedv And Its Dependencies

To uninstall freedv and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove freedv

Remove freedv Configurations and Data

To remove freedv configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge freedv

Remove freedv configuration, data, and all of its dependencies

We can use the following command to remove freedv configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge freedv

References

Summary

In this tutorial we learn how to install freedv package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.