Index: source/soundmanager/scripting/SoundGroup.cpp
===================================================================
--- source/soundmanager/scripting/SoundGroup.cpp
+++ source/soundmanager/scripting/SoundGroup.cpp
@@ -36,16 +36,21 @@
 #include "ps/Filesystem.h"
 #include "ps/Util.h"
 #include "ps/XML/Xeromyces.h"
+#include "simulation2/system/Component.h"
+#include "simulation2/components/ICmpVisual.h"
 #include "soundmanager/items/ISoundItem.h"
 #include "soundmanager/SoundManager.h"
 
 #include <algorithm>
+#include <boost/random/mersenne_twister.hpp>
+#include <boost/random/uniform_real.hpp>
 
 
 extern CGame *g_Game;
 
 #define PI 3.14126f
 
+typedef boost::mt19937 rng_t;
 
 static const bool DISABLE_INTENSITY = true; // disable for now since it's broken
 
@@ -96,9 +101,10 @@
 }
 
 #if CONFIG2_AUDIO
-static float RandFloat(float min, float max)
+static float RandFloat(rng_t& rng, float min, float max)
 {
-	return float(rand(min*100.0f, max*100.0f) / 100.0f);
+	boost::uniform_real<> uni_dist(min, max);
+	return float(uni_dist(rng));
 }
 #endif // CONFIG2_AUDIO
 
@@ -199,13 +205,21 @@
 		hSound->SetRollOff(itemRollOff);
 	}
 
+	rng_t rng;
+	if (TestFlag(eRandPitch) || TestFlag(eRandGain))
+	{
+		// Seed random number generator
+		CmpPtr<ICmpVisual> cmpVisual(*g_Game->GetSimulation2(), source);
+		rng.seed(cmpVisual ? cmpVisual->GetActorSeed() : rand(0, 1000));
+	}
+
 	if (TestFlag(eRandPitch))
-		hSound->SetPitch(RandFloat(m_PitchLower, m_PitchUpper));
+		hSound->SetPitch(RandFloat(rng, m_PitchLower, m_PitchUpper));
 	else
 		hSound->SetPitch(m_Pitch);
 
 	if (TestFlag(eRandGain))
-		m_Gain = RandFloat(m_GainLower, m_GainUpper);
+		m_Gain = RandFloat(rng, m_GainLower, m_GainUpper);
 
 	hSound->SetCone(m_ConeInnerAngle, m_ConeOuterAngle, m_ConeOuterGain);
 	static_cast<CSoundManager*>(g_SoundManager)->PlayGroupItem(hSound, m_Gain);