diff --git a/pkgs/applications/audio/mpg123/default.nix b/pkgs/applications/audio/mpg123/default.nix
index 3eb2cf20ee77..36c8a2409abb 100644
--- a/pkgs/applications/audio/mpg123/default.nix
+++ b/pkgs/applications/audio/mpg123/default.nix
@@ -3,7 +3,7 @@
 , fetchurl
 , makeWrapper
 , pkg-config
-, perl
+, libOnly ? false # whether to build only the library
 , withAlsa ? stdenv.hostPlatform.isLinux
 , alsa-lib
 , withPulse ? stdenv.hostPlatform.isLinux
@@ -14,29 +14,36 @@
 , withJack ? stdenv.hostPlatform.isUnix
 , jack
 , withConplay ? !stdenv.hostPlatform.isWindows
+, perl
 }:
 
+assert withConplay -> !libOnly;
+
 stdenv.mkDerivation rec {
-  pname = "mpg123";
+  pname = "${lib.optionalString libOnly "lib"}mpg123";
   version = "1.31.2";
 
   src = fetchurl {
-    url = "mirror://sourceforge/${pname}/${pname}-${version}.tar.bz2";
+    url = "mirror://sourceforge/mpg123/mpg123-${version}.tar.bz2";
     sha256 = "sha256-sX8ikF4x9DtrQB399qce0Ru30Fb2jbRJ1wufmug5x94=";
   };
 
-  outputs = [ "out" ] ++ lib.optionals withConplay [ "conplay" ];
+  outputs = [ "out" ] ++ lib.optional withConplay "conplay";
 
-  nativeBuildInputs = lib.optionals withConplay [ makeWrapper ]
-    ++ lib.optionals (withPulse || withJack) [ pkg-config ];
+  nativeBuildInputs = lib.optionals (!libOnly) (
+    lib.optionals withConplay [ makeWrapper ]
+    ++ lib.optionals (withPulse || withJack) [ pkg-config ]
+  );
 
-  buildInputs = lib.optionals withConplay [ perl ]
+  buildInputs = lib.optionals (!libOnly) (
+    lib.optionals withConplay [ perl ]
     ++ lib.optionals withAlsa [ alsa-lib ]
     ++ lib.optionals withPulse [ libpulseaudio ]
     ++ lib.optionals withCoreAudio [ AudioUnit AudioToolbox ]
-    ++ lib.optionals withJack [ jack ];
+    ++ lib.optionals withJack [ jack ]
+  );
 
-  configureFlags = [
+  configureFlags = lib.optionals (!libOnly) [
     "--with-audio=${lib.strings.concatStringsSep "," (
       lib.optional withJack "jack"
       ++ lib.optional withPulse "pulse"
diff --git a/pkgs/development/libraries/libsndfile/default.nix b/pkgs/development/libraries/libsndfile/default.nix
index a319de5ce6b2..0dc795a96d84 100644
--- a/pkgs/development/libraries/libsndfile/default.nix
+++ b/pkgs/development/libraries/libsndfile/default.nix
@@ -1,20 +1,22 @@
-{ lib, stdenv, fetchFromGitHub, autoreconfHook, autogen, flac, libogg, libopus, libvorbis, pkg-config, python3
-, Carbon, AudioToolbox
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, autogen, pkg-config, python3
+, flac, lame, libmpg123, libogg, libopus, libvorbis
+, alsa-lib, Carbon, AudioToolbox
 }:
 
 stdenv.mkDerivation rec {
   pname = "libsndfile";
-  version = "1.1.0";
+  version = "1.2.0";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     rev = version;
-    sha256 = "sha256-bhIXVSKuUnUzs5aaLDHt21RcnqekEpLU414sFtl2Lro=";
+    hash = "sha256-zd0HDUzVYLyFjhIudBJQaKJUtYMjZeQRLALSkyD9tXU=";
   };
 
   nativeBuildInputs = [ autoreconfHook autogen pkg-config python3 ];
-  buildInputs = [ flac libogg libopus libvorbis ]
+  buildInputs = [ flac lame libmpg123 libogg libopus libvorbis ]
+    ++ lib.optionals stdenv.isLinux [ alsa-lib ]
     ++ lib.optionals stdenv.isDarwin [ Carbon AudioToolbox ];
 
   enableParallelBuilding = true;
@@ -34,6 +36,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "A C library for reading and writing files containing sampled sound";
     homepage    = "https://libsndfile.github.io/libsndfile/";
+    changelog   = "https://github.com/libsndfile/libsndfile/releases/tag/${version}";
     license     = licenses.lgpl2Plus;
     maintainers = with maintainers; [ lovek323 ];
     platforms   = platforms.unix;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6bdc275e473c..3701d04c59d7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -31850,6 +31850,11 @@ with pkgs;
     jack = libjack2;
   };
 
+  libmpg123 = mpg123.override {
+    libOnly = true;
+    withConplay = false;
+  };
+
   mpg321 = callPackage ../applications/audio/mpg321 { };
 
   mpc-cli = callPackage ../applications/audio/mpc {