Adding praat.

pkgs/applications/audio/praat/default.nix

@@ -0,0 +1,26 @@
+{stdenv, fetchurl, alsaLib, gtk, pkgconfig }:
+
+stdenv.mkDerivation {
+  name = "praat-5323";
+  src = fetchurl {
+    url = http://www.fon.hum.uva.nl/praat/praat5323_sources.tar.gz;
+    sha256 = "1m0m5165h74mw5xhmnnyzh5ans3cn78w5rs9572sa1512cams203";
+  };
+
+  configurePhase = ''
+    cp makefiles/makefile.defs.linux makefile.defs
+  '';
+
+  installPhase = ''
+    ensureDir $out/bin
+    cp praat $out/bin
+  '';
+
+  buildInputs = [ alsaLib gtk pkgconfig ];
+
+  meta = {
+    description = "Doing phonetics by computer";
+    homepage = http://www.fon.hum.uva.nl/praat/;
+    license = "GPLv2+"; # Has some 3rd-party code in it though
+  };
+}

pkgs/top-level/all-packages.nix

@@ -6960,6 +6960,8 @@ let
 
   libquvi = callPackage ../applications/video/quvi/library.nix { };
 
+  praat = callPackage ../applications/audio/praat { };
+
   quvi = callPackage ../applications/video/quvi/tool.nix { };
 
   quvi_scripts = callPackage ../applications/video/quvi/scripts.nix { };