diff --git a/src/RageSound.cpp b/src/RageSound.cpp
index d3dd0c2a0e..5943b86116 100644
--- a/src/RageSound.cpp
+++ b/src/RageSound.cpp
@@ -583,7 +583,7 @@ void RageSound::ApplyParams()
 	m_pSource->SetProperty( "FadeInSeconds", m_Param.m_fFadeInSeconds );
 	m_pSource->SetProperty( "FadeSeconds", m_Param.m_fFadeOutSeconds );
 
-	float fVolume = m_Param.m_Volume * SOUNDMAN->GetMixVolume();
+	float fVolume = m_Param.m_Volume;
 	if( !m_Param.m_bIsCriticalSound )
 		fVolume *= m_Param.m_fAttractVolume;
 	m_pSource->SetProperty( "Volume", fVolume );
diff --git a/src/RageSoundManager.cpp b/src/RageSoundManager.cpp
index bc6750a746..edb006771a 100644
--- a/src/RageSoundManager.cpp
+++ b/src/RageSoundManager.cpp
@@ -18,6 +18,7 @@
 #include "Foreach.h"
 #include "LocalizedString.h"
 #include "Preference.h"
+#include "RageSoundReader_PostBuffering.h"
 
 #include "arch/Sound/RageSoundDriver.h"
 
@@ -35,7 +36,7 @@ static Preference<RString> g_sSoundDrivers( "SoundDrivers", "" ); // "" == DEFAU
 
 RageSoundManager *SOUNDMAN = NULL;
 
-RageSoundManager::RageSoundManager(): m_pDriver(NULL), m_fMixVolume(1.0f),
+RageSoundManager::RageSoundManager(): m_pDriver(NULL),
 	m_fVolumeOfNonCriticalSounds(1.0f) {}
 
 static LocalizedString COULDNT_FIND_SOUND_DRIVER( "RageSoundManager", "Couldn't find a sound driver that works" );
@@ -187,9 +188,7 @@ static Preference<float> g_fSoundVolume( "SoundVolume", 1.0f );
 
 void RageSoundManager::SetMixVolume()
 {
-	g_SoundManMutex.Lock(); /* lock for access to m_fMixVolume */
-	m_fMixVolume = clamp( g_fSoundVolume.Get(), 0.0f, 1.0f );
-	g_SoundManMutex.Unlock(); /* finished with m_fMixVolume */
+	RageSoundReader_PostBuffering::SetMasterVolume( g_fSoundVolume.Get() );
 }
 
 void RageSoundManager::SetVolumeOfNonCriticalSounds( float fVolumeOfNonCriticalSounds )
diff --git a/src/RageSoundManager.h b/src/RageSoundManager.h
index b5677f188f..a732fa06f2 100644
--- a/src/RageSoundManager.h
+++ b/src/RageSoundManager.h
@@ -29,7 +29,6 @@ public:
 
 	void Init();
 
-	float GetMixVolume() const { return m_fMixVolume; }
 	void SetMixVolume();
 	float GetVolumeOfNonCriticalSounds() const { return m_fVolumeOfNonCriticalSounds; }
 	void SetVolumeOfNonCriticalSounds( float fVolumeOfNonCriticalSounds );
@@ -54,7 +53,6 @@ private:
 	RageSoundDriver *m_pDriver;
 
 	/* Prefs: */
-	float m_fMixVolume;
 	float m_fVolumeOfNonCriticalSounds;
 	// Swallow up warnings. If they must be used, define them.
 	RageSoundManager& operator=(const RageSoundManager& rhs);
diff --git a/src/RageSoundReader_PostBuffering.cpp b/src/RageSoundReader_PostBuffering.cpp
index a93da53e20..2d7a124d55 100644
--- a/src/RageSoundReader_PostBuffering.cpp
+++ b/src/RageSoundReader_PostBuffering.cpp
@@ -1,12 +1,16 @@
 #include "global.h"
 #include "RageSoundReader_PostBuffering.h"
 #include "RageSoundUtil.h"
+#include "RageThreads.h"
+#include "RageUtil.h"
 
 /*
  * This filter is normally inserted after extended buffering, implementing
  * properties that do not seek the sound, allowing these properties to be
  * changed with low latency.
  */
+RageMutex g_Mutex("PostBuffering");
+static float g_fMasterVolume = 1.0f;
 
 RageSoundReader_PostBuffering::RageSoundReader_PostBuffering( RageSoundReader *pSource ):
 	RageSoundReader_Filter( pSource )
@@ -14,6 +18,10 @@ RageSoundReader_PostBuffering::RageSoundReader_PostBuffering( RageSoundReader *p
 	m_fVolume = 1.0f;
 }
 
+void RageSoundReader_PostBuffering::SetMasterVolume(float fVolume) {
+	LockMut(g_Mutex);
+	g_fMasterVolume = fVolume;
+}
 
 int RageSoundReader_PostBuffering::Read( float *pBuf, int iFrames )
 {
@@ -21,8 +29,14 @@ int RageSoundReader_PostBuffering::Read( float *pBuf, int iFrames )
 	if( iFrames < 0 )
 		return iFrames;
 
-	if( m_fVolume != 1.0f )
-		RageSoundUtil::Attenuate( pBuf, iFrames * this->GetNumChannels(), m_fVolume );
+	// Combine the sound's volume with master volume.
+	g_Mutex.Lock();
+	float fVolume = m_fVolume * g_fMasterVolume;
+	fVolume = clamp( fVolume, 0, 1 );
+	g_Mutex.Unlock();
+
+	if( fVolume != 1.0f )
+		RageSoundUtil::Attenuate( pBuf, iFrames * this->GetNumChannels(), fVolume );
 
 	return iFrames;
 }
diff --git a/src/RageSoundReader_PostBuffering.h b/src/RageSoundReader_PostBuffering.h
index 28668256c4..4994da571c 100644
--- a/src/RageSoundReader_PostBuffering.h
+++ b/src/RageSoundReader_PostBuffering.h
@@ -10,6 +10,7 @@ class RageSoundReader_PostBuffering: public RageSoundReader_Filter
 public:
 	RageSoundReader_PostBuffering( RageSoundReader *pSource );
 	RageSoundReader_PostBuffering *Copy() const { return new RageSoundReader_PostBuffering(*this); }
+	static void SetMasterVolume( float fVolume );
 	virtual int Read( float *pBuf, int iFrames );
 	virtual bool SetProperty( const RString &sProperty, float fValue );