diff --git a/pkgs/applications/radio/freedv/default.nix b/pkgs/applications/radio/freedv/default.nix
new file mode 100644
index 000000000000..b369a5475e53
--- /dev/null
+++ b/pkgs/applications/radio/freedv/default.nix
@@ -0,0 +1,49 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, codec2
+, libsamplerate
+, libsndfile
+, lpcnetfreedv
+, portaudio
+, speexdsp
+, hamlib
+, wxGTK31-gtk3
+}:
+
+stdenv.mkDerivation rec {
+  pname = "freedv";
+  version = "1.6.1";
+
+  src = fetchFromGitHub {
+    owner = "drowe67";
+    repo = "freedv-gui";
+    rev = "v${version}";
+    sha256 = "1dzhf944vgla9a5ilcgwivhzgdbfaknqnwbpb071a0rz8rajnv0q";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [
+    codec2
+    libsamplerate
+    libsndfile
+    lpcnetfreedv
+    portaudio
+    speexdsp
+    hamlib
+    wxGTK31-gtk3
+  ];
+
+  cmakeFlags = [
+    "-DUSE_INTERNAL_CODEC2:BOOL=FALSE"
+    "-DUSE_STATIC_DEPS:BOOL=FALSE"
+  ];
+
+  meta = with lib; {
+    homepage = "https://freedv.org/";
+    description = "Digital voice for HF radio";
+    license = licenses.lgpl21;
+    maintainers = with maintainers; [ mvs ];
+  };
+}
diff --git a/pkgs/development/libraries/lpcnetfreedv/default.nix b/pkgs/development/libraries/lpcnetfreedv/default.nix
new file mode 100644
index 000000000000..ac12d3a5fd6b
--- /dev/null
+++ b/pkgs/development/libraries/lpcnetfreedv/default.nix
@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchFromGitHub, fetchurl, cmake, codec2 }:
+
+let
+  dataVersion = "191005_v1.0";
+  data = fetchurl {
+    url = "http://rowetel.com/downloads/deep/lpcnet_${dataVersion}.tgz";
+    sha256 = "1j1695hm2pg6ri611f9kr3spm4yxvpikws55z9zxizai8y94152h";
+  };
+in stdenv.mkDerivation rec {
+  pname = "lpcnetfreedv";
+  version = "unstable-2021-06-29";
+
+  src = fetchFromGitHub {
+    owner = "drowe67";
+    repo = "LPCNet";
+    rev = "0dc5935bbf49ff3ba3c9654cc2f802838ebbaead";
+    sha256 = "0r6488z40fkar11ync8achpg5l6qz7y7cbh7cs3b3w4fsxn58q9i";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ codec2 ];
+
+  postPatch = ''
+    mkdir build
+    ln -s ${data} build/lpcnet_${dataVersion}.tgz
+  '';
+
+  meta = with lib; {
+    homepage = "https://freedv.org/";
+    description = "Experimental Neural Net speech coding for FreeDV";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ mvs ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index aa996e5adfb0..4e7b4a913750 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6798,6 +6798,8 @@ with pkgs;
 
   lottieconverter = callPackage ../tools/misc/lottieconverter { };
 
+  lpcnetfreedv = callPackage ../development/libraries/lpcnetfreedv { };
+
   lsd = callPackage ../tools/misc/lsd { };
 
   lsdvd = callPackage ../tools/cd-dvd/lsdvd {};
@@ -24995,6 +24997,8 @@ with pkgs;
       shiboken2;
   };
 
+  freedv = callPackage ../applications/radio/freedv { };
+
   freemind = callPackage ../applications/misc/freemind {
     jdk = jdk8; # TODO: remove override https://github.com/NixOS/nixpkgs/pull/89731
     jre = jre8; # TODO: remove override https://github.com/NixOS/nixpkgs/pull/89731