diff --git a/NEWS b/NEWS
index 5de07ec3c..cf29cbad6 100644
--- a/NEWS
+++ b/NEWS
@@ -46,6 +46,15 @@ ver 0.24 (not yet released)
 * remove Boost dependency
 * require libfmt 7 or later
 
+ver 0.23.14 (not yet released)
+* decoder
+  - flac: fix scanning files with non-ASCII names on Windows
+  - mad: fix calculation of LAME peak values
+* mixer
+  - wasapi: fix problem setting volume
+* more libfmt 10 fixes
+* fix auto-detected systemd unit directory
+
 ver 0.23.13 (2023/05/22)
 * input
   - curl: fix busy loop after connection failed
diff --git a/android/AndroidManifest.xml b/android/AndroidManifest.xml
index 68028d594..cbcc5f893 100644
--- a/android/AndroidManifest.xml
+++ b/android/AndroidManifest.xml
@@ -2,8 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="org.musicpd"
           android:installLocation="auto"
-          android:versionCode="71"
-          android:versionName="0.23.12">
+          android:versionCode="72"
+          android:versionName="0.23.14">
 
   <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="30"/>
 
diff --git a/doc/mpdconf.example b/doc/mpdconf.example
index 9d14bd642..4fc00dacd 100644
--- a/doc/mpdconf.example
+++ b/doc/mpdconf.example
@@ -314,6 +314,7 @@ input {
 ##	device		"Digital Audio (S/PDIF) (High Definition Audio Device)" # optional
 #		or
 ##	device		"0"		# optional
+##	mixer_type	"hardware"	# optional
 ## Exclusive mode blocks all other audio source, and get best audio quality without resampling.
 ##	exclusive	"no"		# optional
 ## Enumerate all devices in log.
diff --git a/doc/user.rst b/doc/user.rst
index 2206c3d1b..bf39aa19a 100644
--- a/doc/user.rst
+++ b/doc/user.rst
@@ -725,9 +725,11 @@ MPD enables MixRamp if:
 - Cross-fade is enabled
 - :ref:`mixrampdelay <command_mixrampdelay>` is set to a positive
   value, e.g.::
+
     mpc mixrampdelay 1
 - :ref:`mixrampdb <command_mixrampdb>` is set to a reasonable value,
   e.g.::
+
     mpc mixrampdb -17
 - both songs have MixRamp tags (or ``mixramp_analyzer`` is enabled)
 - both songs have the same audio format (or :ref:`audio_output_format`
diff --git a/python/build/libs.py b/python/build/libs.py
index a1cef8a0e..c0fae9b9e 100644
--- a/python/build/libs.py
+++ b/python/build/libs.py
@@ -158,7 +158,7 @@ gme = CmakeProject(
         '-DBUILD_SHARED_LIBS=OFF',
         '-DENABLE_UBSAN=OFF',
         '-DZLIB_INCLUDE_DIR=OFF',
-        '-DSDL2_DIR=OFF',
+        '-DCMAKE_DISABLE_FIND_PACKAGE_SDL2=ON',
     ],
 )
 
diff --git a/src/decoder/plugins/FlacDecoderPlugin.cxx b/src/decoder/plugins/FlacDecoderPlugin.cxx
index 7549722a3..a4ba22948 100644
--- a/src/decoder/plugins/FlacDecoderPlugin.cxx
+++ b/src/decoder/plugins/FlacDecoderPlugin.cxx
@@ -8,6 +8,7 @@
 #include "lib/xiph/FlacMetadataChain.hxx"
 #include "OggCodec.hxx"
 #include "input/InputStream.hxx"
+#include "input/LocalOpen.hxx"
 #include "fs/Path.hxx"
 #include "fs/NarrowPath.hxx"
 #include "Log.hxx"
@@ -54,13 +55,30 @@ static bool
 flac_scan_file(Path path_fs, TagHandler &handler) noexcept
 {
 	FlacMetadataChain chain;
-	if (!chain.Read(NarrowPath(path_fs))) {
+	const bool succeed = [&chain, &path_fs]() noexcept {
+		// read by NarrowPath
+		if (chain.Read(NarrowPath(path_fs))) {
+			return true;
+		}
+		if (std::is_same_v<Path::value_type, char> ||
+		    chain.GetStatus() != FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE) {
+			return false;
+		}
+		// read by InputStream
+		Mutex mutex;
+		auto is = OpenLocalInputStream(path_fs, mutex);
+		if (is && chain.Read(*is)) {
+			return true;
+		}
+		return false;
+	}();
+
+	if (!succeed) {
 		FmtDebug(flac_domain,
 			 "Failed to read FLAC tags: {}",
 			 chain.GetStatusString());
 		return false;
 	}
-
 	chain.Scan(handler);
 	return true;
 }
diff --git a/src/decoder/plugins/MadDecoderPlugin.cxx b/src/decoder/plugins/MadDecoderPlugin.cxx
index 4ed21a27f..f3687ef09 100644
--- a/src/decoder/plugins/MadDecoderPlugin.cxx
+++ b/src/decoder/plugins/MadDecoderPlugin.cxx
@@ -546,7 +546,21 @@ parse_lame(struct lame *lame, struct mad_bitptr *ptr, int *bitlen) noexcept
 
 	mad_bit_skip(ptr, 16);
 
-	lame->peak = MAD_F(mad_bit_read(ptr, 32) << 5); /* peak */
+	/* The lame peak value is a float multiplied by 2^23 and stored as an
+	 * unsigned integer (it is always positive). MAD's fixed-point format uses
+	 * 28 bits for the fractional part, so shift the 23 bit fraction up before
+	 * converting to a float.
+	 */
+	unsigned long peak_int = mad_bit_read(ptr, 32);
+
+#define LAME_PEAK_FRACBITS 23
+#if MAD_F_FRACBITS > LAME_PEAK_FRACBITS
+	peak_int <<= (MAD_F_FRACBITS - LAME_PEAK_FRACBITS);
+#elif LAME_PEAK_FRACBITS > MAD_F_FRACBITS
+	peak_int >>= (LAME_PEAK_FRACBITS - MAD_F_FRACBITS);
+#endif
+
+	lame->peak = mad_f_todouble(peak_int); /* peak */
 	FmtDebug(mad_domain, "LAME peak found: {}", lame->peak);
 
 	lame->track_gain = 0;
diff --git a/src/output/plugins/wasapi/WasapiOutputPlugin.cxx b/src/output/plugins/wasapi/WasapiOutputPlugin.cxx
index c2a248724..af16c264d 100644
--- a/src/output/plugins/wasapi/WasapiOutputPlugin.cxx
+++ b/src/output/plugins/wasapi/WasapiOutputPlugin.cxx
@@ -1007,7 +1007,7 @@ WasapiOutput::EnumerateDevices(IMMDeviceEnumerator &enumerator)
 			continue;
 
 		FmtNotice(wasapi_output_domain,
-			  "Device \"{}\" \"{}\"", i, name);
+			  "Device \"{}\" \"{}\"", i, name.c_str());
 	}
 }
 
diff --git a/src/thread/WindowsFuture.hxx b/src/thread/WindowsFuture.hxx
index ed5672dc7..b7e123303 100644
--- a/src/thread/WindowsFuture.hxx
+++ b/src/thread/WindowsFuture.hxx
@@ -114,7 +114,7 @@ public:
 
 	void set_value(const T &value) {
 		std::unique_lock<CriticalSection> lock(mutex);
-		if (!std::holds_alternative<std::monostate>(&result)) {
+		if (!std::holds_alternative<std::monostate>(result)) {
 			throw WinFutureError(WinFutureErrc::promise_already_satisfied);
 		}
 		result.template emplace<T>(value);
diff --git a/src/win32/ComWorker.hxx b/src/win32/ComWorker.hxx
index 6e7306f3e..a51710b8e 100644
--- a/src/win32/ComWorker.hxx
+++ b/src/win32/ComWorker.hxx
@@ -40,17 +40,17 @@ public:
 		using R = std::invoke_result_t<std::decay_t<Function>>;
 		auto promise = std::make_shared<Promise<R>>();
 		auto future = promise->get_future();
-		Push([function = std::forward<Function>(function),
-			      promise = std::move(promise)]() mutable {
+		Push([func = std::forward<Function>(function),
+			      prom = std::move(promise)]() mutable {
 			try {
 				if constexpr (std::is_void_v<R>) {
-					std::invoke(std::forward<Function>(function));
-					promise->set_value();
+					std::invoke(std::forward<Function>(func));
+					prom->set_value();
 				} else {
-					promise->set_value(std::invoke(std::forward<Function>(function)));
+					prom->set_value(std::invoke(std::forward<Function>(func)));
 				}
 			} catch (...) {
-				promise->set_exception(std::current_exception());
+				prom->set_exception(std::current_exception());
 			}
 		});
 		return future;
diff --git a/systemd/system/meson.build b/systemd/system/meson.build
index 632ff420e..c6d676b7c 100644
--- a/systemd/system/meson.build
+++ b/systemd/system/meson.build
@@ -4,7 +4,7 @@ if systemd_system_unit_dir == ''
   if systemd.found()
       systemd_system_unit_dir = systemd.get_variable(
         pkgconfig: 'systemdsystemunitdir',
-        pkgconfig_define: ['prefix', get_option('prefix')],
+        pkgconfig_define: ['rootprefix', get_option('prefix')],
       )
   endif
 endif