diff --git a/packages/default.nix b/packages/default.nix
index 48d8d61..0c3d3ec 100644
--- a/packages/default.nix
+++ b/packages/default.nix
@@ -145,4 +145,7 @@ key-mapper = prev.callPackage ./tools/games/key-mapper {};
 
     buildInputs = old.buildInputs ++ [ prev.taglib prev.libsForQt5.qtkeychain ];
   });
+
+  sound-gambit = prev.callPackage tools/audio/sound-gambit {};
+  ebu-norm = prev.callPackage tools/audio/ebu-norm {};
 }
diff --git a/packages/tools/audio/ebu-norm/0000-remove-dep-check.patch b/packages/tools/audio/ebu-norm/0000-remove-dep-check.patch
new file mode 100644
index 0000000..5c9ae4f
--- /dev/null
+++ b/packages/tools/audio/ebu-norm/0000-remove-dep-check.patch
@@ -0,0 +1,111 @@
+diff --git a/ebu-norm b/ebu-norm
+index ab5fdfe..57d4ca8 100755
+--- a/ebu-norm
++++ b/ebu-norm
+@@ -12,21 +12,6 @@ THR=-1
+ # sound-gambit release time (default 10, range 1 to 1000)
+ REL=10
+ 
+-# Check availability of dependencies
+-function checkAvail()
+-{
+-	which "$1" >/dev/null 2>&1
+-	ret=$?
+-	if [ $ret -ne 0 ]
+-	then
+-		echo "tool \"$1\" not found." >&2
+-		exit 1
+-	fi
+-}
+-
+-for tool in {ffmpeg,bc,sound-gambit}; \
+-	do checkAvail "$tool"; done
+-
+ #Check for audio files
+ NUMARG=0
+ for file in "$@"; do
+diff --git a/ebu-plot b/ebu-plot
+index 5fb7438..4612fff 100755
+--- a/ebu-plot
++++ b/ebu-plot
+@@ -23,21 +23,6 @@ then
+ fi
+ done
+ 
+-# Check availability of dependencies
+-function checkAvail()
+-{
+-	which "$1" >/dev/null 2>&1
+-	ret=$?
+-	if [ $ret -ne 0 ]
+-	then
+-		echo "tool \"$1\" not found." >&2
+-		exit 1
+-	fi
+-}
+-
+-for tool in {pwsh,ffmpeg,gnuplot}; \
+-	do checkAvail "$tool"; done
+-
+ # Command usage check
+ if [ $# -eq 0 ]
+ then
+@@ -82,4 +67,4 @@ echo "Done!"
+ echo
+ echo "Skipped items: $SKIPPED"
+ cat $SKIPFILE
+-rm $SKIPFILE
+\ No newline at end of file
++rm $SKIPFILE
+diff --git a/ebu-scan b/ebu-scan
+index 11736d6..8190223 100755
+--- a/ebu-scan
++++ b/ebu-scan
+@@ -4,21 +4,6 @@
+ 
+ # Usage: ebu-scan <input files>.                          
+ 
+-# Check availability of dependencies
+-function checkAvail()
+-{
+-	which "$1" >/dev/null 2>&1
+-	ret=$?
+-	if [ $ret -ne 0 ]
+-	then
+-		echo "tool \"$1\" not found." >&2
+-		exit 1
+-	fi
+-}
+-
+-for tool in ffmpeg ; \
+-	do checkAvail "$tool"; done
+-
+ #Check for audio files and enumerate
+ NUMARG=0
+ for file in "$@"; do
+diff --git a/tp-norm b/tp-norm
+index b8e4997..894f440 100755
+--- a/tp-norm
++++ b/tp-norm
+@@ -6,21 +6,6 @@
+ # Option: 
+ #  -t   Specify true peak target, e.g. -t -2 
+ 
+-# Check availability of dependencies
+-function checkAvail()
+-{
+-	which "$1" >/dev/null 2>&1
+-	ret=$?
+-	if [ $ret -ne 0 ]
+-	then
+-		echo "tool \"$1\" not found." >&2
+-		exit 1
+-	fi
+-}
+-
+-for tool in {ffmpeg,bc}; \
+-	do checkAvail "$tool"; done
+-
+ #Check for audio files
+ NUMARG=0
+ for file in "$@"; do
diff --git a/packages/tools/audio/ebu-norm/default.nix b/packages/tools/audio/ebu-norm/default.nix
new file mode 100644
index 0000000..2e5f49a
--- /dev/null
+++ b/packages/tools/audio/ebu-norm/default.nix
@@ -0,0 +1,41 @@
+{ stdenv, ffmpeg, sound-gambit, gawk, bc, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "ebu-norm";
+  version = "2.2";
+
+  src = fetchFromGitHub {
+    owner = "chrismhampson";
+    repo = "ebu-norm";
+    rev = "v${version}";
+    sha256 = "120rpi0k3rq0v50ia9cyailgnx5wvpgkzbp8vi74xmr3c0lf26r4";
+  };
+
+  patches = [ ./0000-remove-dep-check.patch ];
+
+  buildInputs = [
+    ffmpeg sound-gambit gawk bc
+  ];
+
+  postPatch = ''
+    for file in ebu-scan ebu-plot ebu-norm tp-norm; do
+        sed --in-place \
+            -e "s|ffmpeg|${ffmpeg}/bin/ffmpeg|g" \
+            -e "s|bc|${bc}/bin/bc|g" \
+            -e "s|sound-gambit|${sound-gambit}/bin/sound-gambit|g" \
+            $file
+    done
+  '';
+  
+  installPhase = ''
+    mkdir -p $out/bin
+    cp {ebu-scan,ebu-plot,ebu-norm,tp-norm} $out/bin/
+  '';
+
+  meta = with lib; {
+    description = "An advanced, professional batch normalizer and scanner for EBU R 128 and other target levels.";
+    homepage = "https://github.com/chrismhampson/ebu-norm";
+    license = licenses.gpl3;
+    maintainers = [ ];
+  };
+}
diff --git a/packages/tools/audio/sound-gambit/default.nix b/packages/tools/audio/sound-gambit/default.nix
new file mode 100644
index 0000000..4424167
--- /dev/null
+++ b/packages/tools/audio/sound-gambit/default.nix
@@ -0,0 +1,26 @@
+{ stdenv, lib, libsndfile, gnumake, pkg-config, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "sound-gambit";
+  version = "0.6";
+
+  src = fetchFromGitHub {
+    owner = "x42";
+    repo = "sound-gambit";
+    rev = "v${version}";
+    sha256 = "18yf7sp6r8gqlifs9zq23ddsi5d46i6sadnh6jnvll3mhgm0h8bv";
+  };
+
+  buildInputs = [ libsndfile pkg-config ];
+
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+  ];
+
+  meta = with lib; {
+    description = "Audio File Peak Limiter";
+    homepage = "https://github.com/x42/sound-gambit";
+    license = licenses.gpl3;
+    maintainers = [ ];
+  };
+}