diff --git a/source/common/sound/backend/oalsound.cpp b/source/common/sound/backend/oalsound.cpp
index 2f8157efa..327129335 100644
--- a/source/common/sound/backend/oalsound.cpp
+++ b/source/common/sound/backend/oalsound.cpp
@@ -2366,5 +2366,4 @@ void I_BuildALResamplersList(FOptionValues* opt)
 #endif
 }
 
-
 #endif // NO_OPENAL
diff --git a/source/common/sound/s_sound.cpp b/source/common/sound/s_sound.cpp
index 60aeeb2cb..af9bcb1de 100644
--- a/source/common/sound/s_sound.cpp
+++ b/source/common/sound/s_sound.cpp
@@ -39,6 +39,7 @@
 #include "s_soundinternal.h"
 #include "m_swap.h"
 #include "superfasthash.h"
+#include "c_cvars.h"
 
 #ifdef _WIN32
 #undef DrawText
@@ -1725,6 +1726,22 @@ void SoundEngine::AddRandomSound(int Owner, TArray<uint32_t> list)
 	S_sfx[Owner].NearLimit = -1;
 }
 
+extern ReverbContainer* ForcedEnvironment;
+
+CVAR(Bool, snd_reverb, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
+void FX_SetReverb(int strength)
+{
+	if (snd_reverb)
+	{
+		// todo: optimize environments. The original "reverb" was garbage and not usable as reference.
+		if (strength < 64) strength = 0x1400;
+		else if (strength < 192) strength = 0x1500;
+		else strength = 0x1900;
+		ForcedEnvironment = S_FindEnvironment(strength);
+	}
+}
+
+
 #include "basics.h"
 #include "stats.h"
 #include "v_text.h"
diff --git a/source/common/sound/s_soundinternal.h b/source/common/sound/s_soundinternal.h
index ae56ca038..2241ffede 100644
--- a/source/common/sound/s_soundinternal.h
+++ b/source/common/sound/s_soundinternal.h
@@ -430,10 +430,7 @@ inline void FX_StopAllSounds(void)
 	soundEngine->StopAllChannels();
 }
 
-inline void FX_SetReverb(int strength)
-{
-	// todo: investigate how this works and set a proper environment.
-}
+void FX_SetReverb(int strength);
 
 inline void FX_SetReverbDelay(int delay) 
 {