diff --git a/pkgs/applications/audio/freqtweak/default.nix b/pkgs/applications/audio/freqtweak/default.nix
new file mode 100644
index 000000000000..046c8c8aac8a
--- /dev/null
+++ b/pkgs/applications/audio/freqtweak/default.nix
@@ -0,0 +1,30 @@
+{ stdenv, fetchFromGitHub, autoconf, automake, pkg-config, fftwFloat, libjack2, libsigcxx, libxml2, wxGTK }:
+
+stdenv.mkDerivation rec {
+  pname = "freqtweak";
+  version = "unstable-2019-08-03";
+
+  src = fetchFromGitHub {
+    owner = "essej";
+    repo = pname;
+    rev = "d4205337558d36657a4ee6b3afb29358aa18c0fd";
+    sha256 = "10cq27mdgrrc54a40al9ahi0wqd0p2c1wxbdg518q8pzfxaxs5fi";
+  };
+
+  nativeBuildInputs = [ autoconf automake pkg-config ];
+  buildInputs = [ fftwFloat libjack2 libsigcxx libxml2 wxGTK ];
+
+  preConfigure = ''
+    sh autogen.sh
+  '';
+
+  enableParallelBuilding = true;
+
+  meta = with stdenv.lib; {
+    homepage = http://essej.net/freqtweak/;
+    description = "Realtime audio frequency spectral manipulation";
+    maintainers = [ maintainers.magnetophon ];
+    platforms = platforms.linux;
+    license = licenses.gpl2Plus;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 37c4d5ab633b..8c6d61f7099a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3675,6 +3675,10 @@ in
 
   freetds = callPackage ../development/libraries/freetds { };
 
+  freqtweak = callPackage ../applications/audio/freqtweak {
+    wxGTK = wxGTK31-gtk2;
+  };
+
   frescobaldi = python3Packages.callPackage ../misc/frescobaldi {};
 
   frostwire = callPackage ../applications/networking/p2p/frostwire { };