diff --git a/src/output/MultipleOutputs.cxx b/src/output/MultipleOutputs.cxx
index c2f26ac7d..fa66b5770 100644
--- a/src/output/MultipleOutputs.cxx
+++ b/src/output/MultipleOutputs.cxx
@@ -35,12 +35,12 @@
 #include <assert.h>
 #include <string.h>
 
-MultipleOutputs::MultipleOutputs(MixerListener &_mixer_listener)
+MultipleOutputs::MultipleOutputs(MixerListener &_mixer_listener) noexcept
 	:mixer_listener(_mixer_listener)
 {
 }
 
-MultipleOutputs::~MultipleOutputs()
+MultipleOutputs::~MultipleOutputs() noexcept
 {
 	/* parallel destruction */
 	for (auto *i : outputs)
@@ -177,14 +177,14 @@ MultipleOutputs::WaitAll() noexcept
 }
 
 void
-MultipleOutputs::AllowPlay()
+MultipleOutputs::AllowPlay() noexcept
 {
 	for (auto *ao : outputs)
 		ao->LockAllowPlay();
 }
 
 bool
-MultipleOutputs::Update(bool force)
+MultipleOutputs::Update(bool force) noexcept
 {
 	bool ret = false;
 
@@ -199,7 +199,7 @@ MultipleOutputs::Update(bool force)
 }
 
 void
-MultipleOutputs::SetReplayGainMode(ReplayGainMode mode)
+MultipleOutputs::SetReplayGainMode(ReplayGainMode mode) noexcept
 {
 	for (auto *ao : outputs)
 		ao->SetReplayGainMode(mode);
@@ -292,7 +292,7 @@ MultipleOutputs::IsChunkConsumed(const MusicChunk *chunk) const noexcept
 
 inline void
 MultipleOutputs::ClearTailChunk(const MusicChunk *chunk,
-				bool *locked)
+				bool *locked) noexcept
 {
 	assert(chunk->next == nullptr);
 	assert(pipe->Contains(chunk));
@@ -315,7 +315,7 @@ MultipleOutputs::ClearTailChunk(const MusicChunk *chunk,
 }
 
 unsigned
-MultipleOutputs::Check()
+MultipleOutputs::Check() noexcept
 {
 	const MusicChunk *chunk;
 	bool is_tail;
@@ -363,7 +363,7 @@ MultipleOutputs::Check()
 }
 
 void
-MultipleOutputs::Pause()
+MultipleOutputs::Pause() noexcept
 {
 	Update(false);
 
@@ -374,7 +374,7 @@ MultipleOutputs::Pause()
 }
 
 void
-MultipleOutputs::Drain()
+MultipleOutputs::Drain() noexcept
 {
 	for (auto *ao : outputs)
 		ao->LockDrainAsync();
@@ -383,7 +383,7 @@ MultipleOutputs::Drain()
 }
 
 void
-MultipleOutputs::Cancel()
+MultipleOutputs::Cancel() noexcept
 {
 	/* send the cancel() command to all audio outputs */
 
@@ -408,7 +408,7 @@ MultipleOutputs::Cancel()
 }
 
 void
-MultipleOutputs::Close()
+MultipleOutputs::Close() noexcept
 {
 	for (auto *ao : outputs)
 		ao->LockCloseWait();
@@ -429,7 +429,7 @@ MultipleOutputs::Close()
 }
 
 void
-MultipleOutputs::Release()
+MultipleOutputs::Release() noexcept
 {
 	for (auto *ao : outputs)
 		ao->LockRelease();
@@ -450,7 +450,7 @@ MultipleOutputs::Release()
 }
 
 void
-MultipleOutputs::SongBorder()
+MultipleOutputs::SongBorder() noexcept
 {
 	/* clear the elapsed_time pointer at the beginning of a new
 	   song */
diff --git a/src/output/MultipleOutputs.hxx b/src/output/MultipleOutputs.hxx
index 65748a9be..26d63d431 100644
--- a/src/output/MultipleOutputs.hxx
+++ b/src/output/MultipleOutputs.hxx
@@ -73,8 +73,8 @@ public:
 	 * Load audio outputs from the configuration file and
 	 * initialize them.
 	 */
-	MultipleOutputs(MixerListener &_mixer_listener);
-	~MultipleOutputs();
+	MultipleOutputs(MixerListener &_mixer_listener) noexcept;
+	~MultipleOutputs() noexcept;
 
 	void Configure(EventLoop &event_loop,
 		       const ReplayGainConfig &replay_gain_config,
@@ -96,13 +96,13 @@ public:
 	/**
 	 * Returns the "i"th audio output device.
 	 */
-	const AudioOutputControl &Get(unsigned i) const {
+	const AudioOutputControl &Get(unsigned i) const noexcept {
 		assert(i < Size());
 
 		return *outputs[i];
 	}
 
-	AudioOutputControl &Get(unsigned i) {
+	AudioOutputControl &Get(unsigned i) noexcept {
 		assert(i < Size());
 
 		return *outputs[i];
@@ -135,15 +135,15 @@ public:
 	/**
 	 * Closes all audio outputs.
 	 */
-	void Close();
+	void Close() noexcept;
 
 	/**
 	 * Closes all audio outputs.  Outputs with the "always_on"
 	 * flag are put into pause mode.
 	 */
-	void Release();
+	void Release() noexcept;
 
-	void SetReplayGainMode(ReplayGainMode mode);
+	void SetReplayGainMode(ReplayGainMode mode) noexcept;
 
 	/**
 	 * Enqueue a #MusicChunk object for playing, i.e. pushes it to a
@@ -161,28 +161,28 @@ public:
 	 *
 	 * @return the number of chunks to play left in the #MusicPipe
 	 */
-	unsigned Check();
+	unsigned Check() noexcept;
 
 	/**
 	 * Puts all audio outputs into pause mode.  Most implementations will
 	 * simply close it then.
 	 */
-	void Pause();
+	void Pause() noexcept;
 
 	/**
 	 * Drain all audio outputs.
 	 */
-	void Drain();
+	void Drain() noexcept;
 
 	/**
 	 * Try to cancel data which may still be in the device's buffers.
 	 */
-	void Cancel();
+	void Cancel() noexcept;
 
 	/**
 	 * Indicate that a new song will begin now.
 	 */
-	void SongBorder();
+	void SongBorder() noexcept;
 
 	/**
 	 * Returns the "elapsed_time" stamp of the most recently finished
@@ -238,7 +238,7 @@ private:
 	/**
 	 * Signals all audio outputs which are open.
 	 */
-	void AllowPlay();
+	void AllowPlay() noexcept;
 
 	/**
 	 * Opens all output devices which are enabled, but closed.
@@ -246,7 +246,7 @@ private:
 	 * @return true if there is at least open output device which
 	 * is open
 	 */
-	bool Update(bool force);
+	bool Update(bool force) noexcept;
 
 	/**
 	 * Has this chunk been consumed by all audio outputs?
@@ -258,7 +258,7 @@ private:
 	 * audio outputs have consumed it already.  Clear the
 	 * reference.
 	 */
-	void ClearTailChunk(const MusicChunk *chunk, bool *locked);
+	void ClearTailChunk(const MusicChunk *chunk, bool *locked) noexcept;
 };
 
 #endif