diff --git a/source/blood/src/osdcmd.cpp b/source/blood/src/osdcmd.cpp
index f7fa34ca6..926cca533 100644
--- a/source/blood/src/osdcmd.cpp
+++ b/source/blood/src/osdcmd.cpp
@@ -270,6 +270,7 @@ static int osdcmd_noclip(osdcmdptr_t UNUSED(parm))
     return OSDCMD_OK;
 }
 
+/*
 static int osdcmd_restartsound(osdcmdptr_t UNUSED(parm))
 {
     UNREFERENCED_CONST_PARAMETER(parm);
@@ -281,6 +282,7 @@ static int osdcmd_restartsound(osdcmdptr_t UNUSED(parm))
 
     return OSDCMD_OK;
 }
+*/
 
 void onvideomodechange(int32_t newmode)
 {
@@ -303,7 +305,6 @@ int32_t registerosdcommands(void)
     OSD_RegisterFunction("give","give <all|health|weapons|ammo|armor|keys|inventory>: gives requested item", osdcmd_give);
     OSD_RegisterFunction("god","god: toggles god mode", osdcmd_god);
     OSD_RegisterFunction("noclip","noclip: toggles clipping mode", osdcmd_noclip);
-	OSD_RegisterFunction("restartsound","restartsound: reinitializes the sound system",osdcmd_restartsound);
 
     OSD_RegisterFunction("vidmode","vidmode <xdim> <ydim> <bpp> <fullscreen>: change the video mode",osdcmd_vidmode);
 
diff --git a/source/common/gamecontrol.cpp b/source/common/gamecontrol.cpp
index 7fb1eed14..b5dff8451 100644
--- a/source/common/gamecontrol.cpp
+++ b/source/common/gamecontrol.cpp
@@ -45,6 +45,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #include "gstrings.h"
 #include "quotemgr.h"
 #include "mapinfo.h"
+#include "s_soundinternal.h"
 #ifndef NETCODE_DISABLE
 #include "enet.h"
 #endif
@@ -545,3 +546,11 @@ void CONFIG_InitMouseAndController()
 	inputState.keyFlushScans();
 }
 
+
+CCMD(snd_reset)
+{
+	Mus_Stop();
+	soundEngine->Reset();
+	MUS_ResumeSaved();
+}
+
diff --git a/source/common/sound/s_sound.cpp b/source/common/sound/s_sound.cpp
index d03fdf960..8444d4592 100644
--- a/source/common/sound/s_sound.cpp
+++ b/source/common/sound/s_sound.cpp
@@ -157,12 +157,8 @@ void SoundEngine::CacheMarkedSounds()
 
 void SoundEngine::CacheSound (sfxinfo_t *sfx)
 {
-	if (GSnd)
+	if (GSnd && !sfx->bTentative)
 	{
-		if (sfx->bPlayerReserve)
-		{
-			return;
-		}
 		sfxinfo_t *orig = sfx;
 		while (!sfx->bRandomHeader && sfx->link != sfxinfo_t::NO_LINK)
 		{
@@ -338,8 +334,7 @@ FString SoundEngine::ListSoundChannels()
 
 void SoundEngine::CalcPosVel(FSoundChan *chan, FVector3 *pos, FVector3 *vel)
 {
-	CalcPosVel(chan->SourceType, chan->Source, chan->Point,
-		chan->EntChannel, chan->ChanFlags, pos, vel);
+	CalcPosVel(chan->SourceType, chan->Source, chan->Point,	chan->EntChannel, chan->ChanFlags, chan->SoundID, pos, vel);
 }
 
 bool SoundEngine::ValidatePosVel(const FSoundChan* const chan, const FVector3& pos, const FVector3& vel)
@@ -403,7 +398,7 @@ FSoundChan *SoundEngine::StartSound(int type, const void *source,
 	chanflags = channel & ~7;
 	channel &= 7;
 
-	CalcPosVel(type, source, &pt->X, channel, chanflags, &pos, &vel);
+	CalcPosVel(type, source, &pt->X, channel, chanflags, sound_id, &pos, &vel);
 
 	if (!ValidatePosVel(type, source, pos, vel))
 	{
@@ -1101,8 +1096,9 @@ void SoundEngine::SetPitch(FSoundChan *chan, float pitch)
 // Is a sound being played by a specific emitter?
 //==========================================================================
 
-bool SoundEngine::GetSoundPlayingInfo (int sourcetype, const void *source, int sound_id)
+int SoundEngine::GetSoundPlayingInfo (int sourcetype, const void *source, int sound_id)
 {
+	int count = 0;
 	if (sound_id > 0)
 	{
 		for (FSoundChan *chan = Channels; chan != NULL; chan = chan->NextChan)
@@ -1111,11 +1107,11 @@ bool SoundEngine::GetSoundPlayingInfo (int sourcetype, const void *source, int s
 				(chan->SourceType == sourcetype &&
 				chan->Source == source)))
 			{
-				return true;
+				count++;
 			}
 		}
 	}
-	return false;
+	return count;
 }
 
 //==========================================================================
@@ -1543,14 +1539,11 @@ int SoundEngine::AddSoundLump(const char* logicalname, int lump, int CurrentPitc
 	newsfx.NearLimit = 2;
 	newsfx.LimitRange = 256 * 256;
 	newsfx.bRandomHeader = false;
-	newsfx.bPlayerReserve = false;
 	newsfx.bLoadRAW = false;
-	newsfx.bPlayerCompat = false;
 	newsfx.b16bit = false;
 	newsfx.bUsed = false;
 	newsfx.bSingular = false;
 	newsfx.bTentative = false;
-	newsfx.bPlayerSilent = false;
 	newsfx.ResourceId = resid;
 	newsfx.RawRate = 0;
 	newsfx.link = sfxinfo_t::NO_LINK;
diff --git a/source/common/sound/s_soundinternal.h b/source/common/sound/s_soundinternal.h
index a40df6a5c..1f246ca1c 100644
--- a/source/common/sound/s_soundinternal.h
+++ b/source/common/sound/s_soundinternal.h
@@ -40,11 +40,7 @@ struct sfxinfo_t
 	unsigned		bSingular:1;
 
 	unsigned		bTentative:1;
-	unsigned		bPlayerReserve : 1;
-	unsigned		bPlayerCompat : 1;
-	unsigned		bPlayerSilent:1;		// This player sound is intentionally silent.
-	unsigned		userFlags;
-	int				userdata;
+	TArray<uint8_t> UserData;
 
 	int		RawRate;				// Sample rate to use when bLoadRAW is true
 
@@ -57,6 +53,37 @@ struct sfxinfo_t
 	float		Attenuation;			// Multiplies the attenuation passed to S_Sound.
 
 	void		MarkUsed();				// Marks this sound as used.
+
+	void Clear()
+	{
+		data.Clear();
+		data3d.Clear();
+		lumpnum = -1;				// lump number of sfx
+		next = -1;
+		index = 0;			// [RH] For hashing
+		Volume = 1.f;
+		ResourceId = -1;
+		PitchMask = 0;
+		NearLimit = 4;				// 0 means unlimited
+		LimitRange = 256*256;
+
+		bRandomHeader = false;
+		bLoadRAW = false;
+		b16bit= false;
+		bUsed = false;
+		bSingular = false;
+
+		bTentative = true;
+
+		RawRate = 0;				// Sample rate to use when bLoadRAW is true
+
+		LoopStart = 0;				// -1 means no specific loop defined
+
+		link = NO_LINK;
+
+		Rolloff = {};
+		Attenuation = 1.f;
+	}
 };
 
 // Rolloff types
@@ -256,7 +283,7 @@ private:
 
 	bool IsChannelUsed(int sourcetype, const void* actor, int channel, int* seen);
 	// This is the actual sound positioning logic which needs to be provided by the client.
-	virtual void CalcPosVel(int type, const void* source, const float pt[3], int channel, int chanflags, FVector3* pos, FVector3* vel) = 0;
+	virtual void CalcPosVel(int type, const void* source, const float pt[3], int channel, int chanflags, FSoundID chanSound, FVector3* pos, FVector3* vel) = 0;
 	// This can be overridden by the clent to provide some diagnostics. The default lets everything pass.
 	virtual bool ValidatePosVel(int sourcetype, const void* source, const FVector3& pos, const FVector3& vel) { return true; }
 
@@ -313,7 +340,7 @@ public:
 	bool IsSourcePlayingSomething(int sourcetype, const void* actor, int channel, int sound_id);
 
 	// Stop and resume music, during game PAUSE.
-	bool GetSoundPlayingInfo(int sourcetype, const void* source, int sound_id);
+	int GetSoundPlayingInfo(int sourcetype, const void* source, int sound_id);
 	void UnloadAllSounds();
 	void Reset();
 	void MarkUsed(int num);
@@ -329,10 +356,6 @@ public:
 	{
 		return object && listener.ListenerObject == object;
 	}
-	bool isPlayerReserve(int snd_id)
-	{
-		return S_sfx[snd_id].bPlayerReserve;	// Later this needs to be abstracted out of the engine itself. Right now that cannot be done.
-	}
 	void SetListener(SoundListener& l)
 	{
 		listener = l;
@@ -369,17 +392,22 @@ public:
 	{
 		S_rnd.Clear();
 	}
-	int GetUserFlags(int snd)
+	void *GetUserData(int snd)
 	{
-		return S_sfx[snd].userFlags;
-	}
-	int GetUserData(int snd)
-	{
-		return S_sfx[snd].userdata;
+		return S_sfx[snd].UserData.Data();
 	}
 	bool isValidSoundId(int id)
 	{
-		return id > 0 && id < (int)S_sfx.Size();
+		return id > 0 && id < (int)S_sfx.Size() && !S_sfx[id].bTentative;
+	}
+
+	template<class func> bool EnumerateChannels(func callback)
+	{
+		for (FSoundChan* chan = Channels; chan; chan = chan->NextChan)
+		{
+			if (callback(chan)) return true;
+		}
+		return false;
 	}
 
 	void ChannelVirtualChanged(FISoundChannel* ichan, bool is_virtual);
diff --git a/source/duke3d/src/actors.cpp b/source/duke3d/src/actors.cpp
index d7e43c61f..04af80cb0 100644
--- a/source/duke3d/src/actors.cpp
+++ b/source/duke3d/src/actors.cpp
@@ -1492,7 +1492,8 @@ ACTOR_STATIC void G_MoveFX(void)
             else if (pSprite->lotag < 999 && (unsigned)sector[pSprite->sectnum].lotag < 9 &&  // ST_9_SLIDING_ST_DOOR
                          snd_ambience && sector[SECT(spriteNum)].floorz != sector[SECT(spriteNum)].ceilingz)
             {
-                if (g_sounds[pSprite->lotag].m & SF_MSFX)
+                auto flags = S_GetUserFlags(pSprite->lotag);
+                if (flags & SF_MSFX)
                 {
                     int playerDist = dist(&sprite[pPlayer->i], pSprite);
 
@@ -1505,10 +1506,10 @@ ACTOR_STATIC void G_MoveFX(void)
                     }
 #endif
 
-                    if (playerDist < spriteHitag && T1(spriteNum) == 0 && FX_VoiceAvailable(g_sounds[pSprite->lotag].pr-1))
+                    if (playerDist < spriteHitag && T1(spriteNum) == 0)// && FX_VoiceAvailable(g_sounds[pSprite->lotag].pr-1))
                     {
                         // Start playing an ambience sound.
-
+#if 0 // let the sound system handle this internally.
                         char om = g_sounds[pSprite->lotag].m;
                         if (g_numEnvSoundsPlaying == snd_numvoices)
                         {
@@ -1525,10 +1526,8 @@ ACTOR_STATIC void G_MoveFX(void)
                             if (j == -1)
                                 goto next_sprite;
                         }
-
-                        g_sounds[pSprite->lotag].m |= SF_LOOP;
-                        A_PlaySound(pSprite->lotag,spriteNum);
-                        g_sounds[pSprite->lotag].m = om;
+#endif
+                        A_PlaySound(pSprite->lotag,spriteNum, true);
                         T1(spriteNum) = 1;  // AMBIENT_SFX_PLAYING
                     }
                     else if (playerDist >= spriteHitag && T1(spriteNum) == 1)
@@ -1541,7 +1540,7 @@ ACTOR_STATIC void G_MoveFX(void)
                     }
                 }
 
-                if ((g_sounds[pSprite->lotag].m & (SF_GLOBAL|SF_DTAG)) == SF_GLOBAL)
+                if ((flags & (SF_GLOBAL|SF_DTAG)) == SF_GLOBAL)
                 {
                     // Randomly playing global sounds (flyby of planes, screams, ...)
 
diff --git a/source/duke3d/src/game.cpp b/source/duke3d/src/game.cpp
index 6231b2f7c..e60fe0b52 100644
--- a/source/duke3d/src/game.cpp
+++ b/source/duke3d/src/game.cpp
@@ -4745,43 +4745,6 @@ void G_HandleLocalKeys(void)
     }
 }
 
-static int32_t S_DefineAudioIfSupported(char **fn, const char *name)
-{
-#if !defined HAVE_FLAC || !defined HAVE_VORBIS
-    const char *extension = Bstrrchr(name, '.');
-# if !defined HAVE_FLAC
-    if (extension && !Bstrcasecmp(extension, ".flac"))
-        return -2;
-# endif
-# if !defined HAVE_VORBIS
-    if (extension && !Bstrcasecmp(extension, ".ogg"))
-        return -2;
-# endif
-#endif
-    realloc_copy(fn, name);
-    return 0;
-}
-
-static int32_t S_DefineSound(int sndidx, const char *name, int minpitch, int maxpitch, int priority, int type, int distance, float volume)
-{
-    if ((unsigned)sndidx >= MAXSOUNDS || S_DefineAudioIfSupported(&g_sounds[sndidx].filename, name))
-        return -1;
-
-    auto &snd = g_sounds[sndidx];
-
-    snd.ps     = clamp(minpitch, INT16_MIN, INT16_MAX);
-    snd.pe     = clamp(maxpitch, INT16_MIN, INT16_MAX);
-    snd.pr     = priority & 255;
-    snd.m      = type & ~SF_ONEINST_INTERNAL;
-    snd.vo     = clamp(distance, INT16_MIN, INT16_MAX);
-    snd.volume = volume;
-
-    if (snd.m & SF_LOOP)
-        snd.m |= SF_ONEINST_INTERNAL;
-
-    return 0;
-}
-
 // Returns:
 //   0: all OK
 //  -1: ID declaration was invalid:
@@ -5399,10 +5362,6 @@ static void G_Cleanup(void)
         Xfree(g_player[i].input);
     }
 
-    for (i=MAXSOUNDS-1; i>=0; i--)
-    {
-        Xfree(g_sounds[i].filename);
-    }
 #if !defined LUNATIC
     if (label != (char *)&sprite[0]) Xfree(label);
     if (labelcode != (int32_t *)&sector[0]) Xfree(labelcode);
@@ -5432,7 +5391,6 @@ static void G_Cleanup(void)
 
 void G_Shutdown(void)
 {
-	S_SoundShutdown();
     engineUnInit();
     G_Cleanup();
 }
@@ -6031,7 +5989,6 @@ int GameInterface::app_main()
         }
 
         videoSetPalette(0, myplayer.palette, 0);
-        S_SoundStartup();
     }
 
     // check if the minifont will support lowercase letters (3136-3161)
diff --git a/source/duke3d/src/gamedef.cpp b/source/duke3d/src/gamedef.cpp
index 1f2718dff..65b892fb5 100644
--- a/source/duke3d/src/gamedef.cpp
+++ b/source/duke3d/src/gamedef.cpp
@@ -5361,86 +5361,74 @@ repeatcase:
             continue;
 
         case CON_DEFINESOUND:
+        {
+            FString filename;
+            int ps, pe, vo, pr, m;
+            float volume;
+
             g_scriptPtr--;
             C_GetNextValue(LABEL_DEFINE);
 
             // Ideally we could keep the value of i from C_GetNextValue() instead of having to hash_find() again.
             // This depends on tempbuf remaining in place after C_GetNextValue():
-            j = hash_find(&h_labels,tempbuf);
+            j = hash_find(&h_labels, tempbuf);
 
             k = g_scriptPtr[-1];
-            if (EDUKE32_PREDICT_FALSE((unsigned)k >= MAXSOUNDS-1))
+            if ((unsigned)k >= MAXSOUNDS - 1)
             {
-                initprintf("%s:%d: error: sound index exceeds limit of %d.\n",g_scriptFileName,g_lineNumber, MAXSOUNDS-1);
+                initprintf("%s:%d: error: sound index exceeds limit of %d.\n", g_scriptFileName, g_lineNumber, MAXSOUNDS - 1);
                 g_errorCnt++;
-                k = MAXSOUNDS-1;
+                k = MAXSOUNDS - 1;
             }
-            else if (EDUKE32_PREDICT_FALSE(g_sounds[k].filename != NULL))
+            /*else if (g_sounds[k].filename != NULL)
             {
-                initprintf("%s:%d: warning: sound %d already defined (%s)\n",g_scriptFileName,g_lineNumber,k,g_sounds[k].filename);
+                initprintf("%s:%d: warning: sound %d already defined (%s)\n", g_scriptFileName, g_lineNumber, k, g_sounds[k].filename);
                 g_warningCnt++;
-            }
+            }*/
 
             g_scriptPtr--;
             i = 0;
             C_SkipComments();
 
-            if (g_sounds[k].filename == NULL)
-                g_sounds[k].filename = (char *)Xcalloc(BMAX_PATH,sizeof(uint8_t));
+            TArray<char> buffer;
 
             if (*textptr == '\"')
             {
                 textptr++;
                 while (*textptr && *textptr != '\"')
                 {
-                    g_sounds[k].filename[i++] = *textptr++;
-                    if (EDUKE32_PREDICT_FALSE(i >= BMAX_PATH-1))
-                    {
-                        initprintf("%s:%d: error: sound filename exceeds limit of %d characters.\n",g_scriptFileName,g_lineNumber,BMAX_PATH-1);
-                        g_errorCnt++;
-                        C_SkipComments();
-                        break;
-                    }
+                    buffer.Push(*textptr++);
                 }
                 textptr++;
             }
             else while (*textptr != ' ' && *textptr != '\t' && *textptr != '\r' && *textptr != '\n')
             {
-                g_sounds[k].filename[i++] = *textptr++;
-                if (EDUKE32_PREDICT_FALSE(i >= BMAX_PATH-1))
-                {
-                    initprintf("%s:%d: error: sound filename exceeds limit of %d characters.\n",g_scriptFileName,g_lineNumber,BMAX_PATH-1);
-                    g_errorCnt++;
-                    C_SkipComments();
-                    break;
-                }
+                buffer.Push(*textptr++);
             }
-            g_sounds[k].filename[i] = '\0';
+            buffer.Push(0);
 
             C_GetNextValue(LABEL_DEFINE);
-            g_sounds[k].ps = g_scriptPtr[-1];
+            ps = g_scriptPtr[-1];
             C_GetNextValue(LABEL_DEFINE);
-            g_sounds[k].pe = g_scriptPtr[-1];
+            pe = g_scriptPtr[-1];
             C_GetNextValue(LABEL_DEFINE);
-            g_sounds[k].pr = g_scriptPtr[-1];
+            pr = g_scriptPtr[-1];
 
             C_GetNextValue(LABEL_DEFINE);
-            g_sounds[k].m = g_scriptPtr[-1] & ~SF_ONEINST_INTERNAL;
-            if (g_scriptPtr[-1] & SF_LOOP)
-                g_sounds[k].m |= SF_ONEINST_INTERNAL;
+            m = g_scriptPtr[-1];
 
             C_GetNextValue(LABEL_DEFINE);
-            g_sounds[k].vo = g_scriptPtr[-1];
+            vo = g_scriptPtr[-1];
             g_scriptPtr -= 5;
 
-            g_sounds[k].volume = 1.f;
+            int res = S_DefineSound(k, filename, ps, pe, pr, m, vo, 1.f);
 
-            if (k > g_highestSoundIdx)
-                g_highestSoundIdx = k;
+            volume = 1.f;
 
             if (g_dynamicSoundMapping && j >= 0 && (labeltype[j] & LABEL_DEFINE))
-                G_ProcessDynamicSoundMapping(label+(j<<6), k);
+                G_ProcessDynamicSoundMapping(label + (j << 6), k);
             continue;
+        }
 
         case CON_ENDEVENT:
 
diff --git a/source/duke3d/src/global.h b/source/duke3d/src/global.h
index bfb84f74c..49e1a1e14 100644
--- a/source/duke3d/src/global.h
+++ b/source/duke3d/src/global.h
@@ -149,7 +149,6 @@ G_EXTERN int32_t g_noEnemies;
 G_EXTERN int32_t g_restorePalette;
 G_EXTERN int32_t g_screenCapture;
 G_EXTERN projectile_t SpriteProjectile[MAXSPRITES];
-G_EXTERN sound_t g_sounds[MAXSOUNDS];
 G_EXTERN uint32_t everyothertime;
 G_EXTERN uint32_t g_moveThingsCount;
 G_EXTERN double g_gameUpdateTime;
diff --git a/source/duke3d/src/osdcmds.cpp b/source/duke3d/src/osdcmds.cpp
index 92004f793..5279c2748 100644
--- a/source/duke3d/src/osdcmds.cpp
+++ b/source/duke3d/src/osdcmds.cpp
@@ -172,19 +172,6 @@ static int osdcmd_noclip(osdcmdptr_t UNUSED(parm))
     return OSDCMD_OK;
 }
 
-static int osdcmd_restartsound(osdcmdptr_t UNUSED(parm))
-{
-    UNREFERENCED_CONST_PARAMETER(parm);
-    S_SoundShutdown();
-
-    S_SoundStartup();
-
-    FX_StopAllSounds();
-    S_ClearSoundLocks();
-
-    return OSDCMD_OK;
-}
-
 int osdcmd_restartmap(osdcmdptr_t UNUSED(parm))
 {
     UNREFERENCED_CONST_PARAMETER(parm);
@@ -812,7 +799,6 @@ int32_t registerosdcommands(void)
     OSD_RegisterFunction("printtimes", "printtimes: prints VM timing statistics", osdcmd_printtimes);
 
     OSD_RegisterFunction("restartmap", "restartmap: restarts the current map", osdcmd_restartmap);
-    OSD_RegisterFunction("restartsound","restartsound: reinitializes the sound system",osdcmd_restartsound);
 	OSD_RegisterFunction("addlogvar","addlogvar <gamevar>: prints the value of a gamevar", osdcmd_addlogvar);
     OSD_RegisterFunction("setvar","setvar <gamevar> <value>: sets the value of a gamevar", osdcmd_setvar);
     OSD_RegisterFunction("setvarvar","setvarvar <gamevar1> <gamevar2>: sets the value of <gamevar1> to <gamevar2>", osdcmd_setvar);
diff --git a/source/duke3d/src/sector.cpp b/source/duke3d/src/sector.cpp
index 7fd818867..388701303 100644
--- a/source/duke3d/src/sector.cpp
+++ b/source/duke3d/src/sector.cpp
@@ -70,9 +70,10 @@ int A_CallSound(int sectNum, int spriteNum)
         if (spriteNum == -1)
             spriteNum = SFXsprite;
 
+        auto flags = S_GetUserFlags(soundNum);
         if (T1(SFXsprite) == 0)
         {
-            if ((g_sounds[soundNum].m & (SF_GLOBAL|SF_DTAG)) != SF_GLOBAL)
+            if ((flags & (SF_GLOBAL|SF_DTAG)) != SF_GLOBAL)
             {
                 if (soundNum)
                 {
@@ -93,7 +94,7 @@ int A_CallSound(int sectNum, int spriteNum)
             if (SHT(SFXsprite))
                 A_PlaySound(SHT(SFXsprite), spriteNum);
 
-            if ((g_sounds[soundNum].m & SF_LOOP) || (SHT(SFXsprite) && SHT(SFXsprite) != soundNum))
+            if ((flags & SF_LOOP) || (SHT(SFXsprite) && SHT(SFXsprite) != soundNum))
                 S_StopEnvSound(soundNum, T6(SFXsprite));
 
             T6(SFXsprite) = spriteNum;
@@ -1465,7 +1466,9 @@ int P_ActivateSwitch(int playerNum, int wallOrSprite, int switchType)
                 S_PlaySound3D(SWITCH_ON, (switchType == SWITCH_SPRITE) ? wallOrSprite : g_player[playerNum].ps->i, &davector);
             else if (hitag)
             {
-                if (switchType == SWITCH_SPRITE && (g_sounds[hitag].m & SF_TALK) == 0)
+                auto flags = S_GetUserFlags(hitag);
+
+                if (switchType == SWITCH_SPRITE && (flags & SF_TALK) == 0)
                     S_PlaySound3D(hitag, wallOrSprite, &davector);
                 else
                     A_PlaySound(hitag, g_player[playerNum].ps->i);
@@ -1968,7 +1971,7 @@ void A_DamageObject_Duke3D(int spriteNum, int const dmgSrc)
             sprite[dmgSrc].xvel = (sprite[spriteNum].xvel>>1)+(sprite[spriteNum].xvel>>2);
             sprite[dmgSrc].ang -= (SA(spriteNum)<<1)+1024;
             SA(spriteNum) = getangle(SX(spriteNum)-sprite[dmgSrc].x,SY(spriteNum)-sprite[dmgSrc].y)-512;
-            if (g_sounds[POOLBALLHIT].num < 2)
+            if (S_CheckSoundPlaying(POOLBALLHIT) < 2)
                 A_PlaySound(POOLBALLHIT, spriteNum);
         }
         else
diff --git a/source/duke3d/src/sounds.cpp b/source/duke3d/src/sounds.cpp
index a54e0c679..55352a625 100644
--- a/source/duke3d/src/sounds.cpp
+++ b/source/duke3d/src/sounds.cpp
@@ -25,145 +25,35 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #include "compat.h"
 
 #include "duke3d.h"
-#include "renderlayer.h" // for win_gethwnd()
-#include "al_midi.h"
-#include "openaudio.h"
 #include "z_music.h"
 #include "mapinfo.h"
 #include "sound/s_soundinternal.h"
-#include <atomic>
 
 BEGIN_DUKE_NS
 
+int32_t g_highestSoundIdx;
 
-#define DQSIZE 256
 
-int32_t g_numEnvSoundsPlaying, g_highestSoundIdx;
-
-static char *MusicPtr;
-
-static int32_t MusicIsWaveform;
-static int32_t MusicVoice = -1;
-
-static bool MusicPaused;
-static bool SoundPaused;
-
-static std::atomic<uint32_t> dnum, dq[DQSIZE];
-static mutex_t m_callback;
-
-static inline void S_SetProperties(assvoice_t *snd, int const owner, int const voice, int const dist, int const clock)
+class DukeSoundEngine : public SoundEngine
 {
-    snd->owner = owner;
-    snd->id    = voice;
-    snd->dist  = dist;
-    snd->clock = clock;
-}
+    // client specific parts of the sound engine go in this class.
+    void CalcPosVel(int type, const void* source, const float pt[3], int channum, int chanflags, FSoundID chanSound, FVector3* pos, FVector3* vel) override;
+    TArray<uint8_t> ReadSound(int lumpnum);
 
-void S_SoundStartup(void)
+public:
+    DukeSoundEngine() = default;
+};
+
+//==========================================================================
+//
+// This is to avoid hardscoding the dependency on Wads into the sound engine
+// 
+//==========================================================================
+
+TArray<uint8_t> DukeSoundEngine::ReadSound(int lumpnum)
 {
-#ifdef _WIN32
-    void *initdata = (void *) win_gethwnd(); // used for DirectSound
-#else
-    void *initdata = NULL;
-#endif
-
-    initprintf("Initializing sound... ");
-
-    int status = FX_Init(snd_numvoices, snd_numchannels, snd_mixrate, initdata);
-    if (status != FX_Ok)
-    {
-        initprintf("failed! %s\n", FX_ErrorString(status));
-        return;
-    }
-
-	initprintf("%d voices, %d channels, 16-bit %d Hz\n", *snd_numvoices, *snd_numchannels, *snd_mixrate);
-
-    for (int i = 0; i <= g_highestSoundIdx; ++i)
-    {
-        for (auto & voice : g_sounds[i].voices)
-        {
-            g_sounds[i].num = 0;
-            S_SetProperties(&voice, -1, 0, UINT16_MAX, 0);
-        }
-    }
-
-	snd_fxvolume.Callback();
-
-	snd_reversestereo.Callback();
-    //FX_SetCallBack(S_Callback);
-    FX_SetPrintf(OSD_Printf);
-}
-
-void S_SoundShutdown(void)
-{
-    int status = FX_Shutdown();
-    if (status != FX_Ok)
-    {
-        Bsprintf(tempbuf, "S_SoundShutdown(): error: %s", FX_ErrorString(status));
-        G_GameExit(tempbuf);
-    }
-}
-
-void S_PauseSounds(bool paused)
-{
-    if (SoundPaused == paused)
-        return;
-
-    SoundPaused = paused;
-
-    for (int i = 0; i <= g_highestSoundIdx; ++i)
-    {
-        for (auto & voice : g_sounds[i].voices)
-            if (voice.id > 0)
-                FX_PauseVoice(voice.id, paused);
-    }
-}
-
-// returns number of bytes read
-int32_t S_LoadSound(int num)
-{
-    if ((unsigned)num > (unsigned)g_highestSoundIdx || EDUKE32_PREDICT_FALSE(g_sounds[num].filename == NULL))
-        return 0;
-
-    auto &snd = g_sounds[num];
-
-    auto fp = S_OpenAudio(snd.filename, 0, 0);
-
-    if (!fp.isOpen())
-    {
-        OSD_Printf(OSDTEXT_RED "Sound %s(#%d) not found!\n", snd.filename, num);
-        return 0;
-    }
-
-	int32_t l = fp.GetLength();
-    snd.siz = l;
-    cacheAllocateBlock((intptr_t *)&snd.ptr, l, nullptr);
-    l = fp.Read(snd.ptr, l);
-
-    return l;
-}
-
-void cacheAllSounds(void)
-{
-    for (int i=0, j=0; i <= g_highestSoundIdx; ++i)
-    {
-        if (g_sounds[i].ptr == 0)
-        {
-            j++;
-            if ((j&7) == 0)
-                gameHandleEvents();
-
-            S_LoadSound(i);
-        }
-    }
-}
-
-static inline int S_GetPitch(int num)
-{
-    auto const &snd   = g_sounds[num];
-    int const   range = klabs(snd.pe - snd.ps);
-
-    return (range == 0) ? snd.ps : min(snd.ps, snd.pe) + rand() % range;
+    auto wlump = fileSystem.OpenFileReader(lumpnum);
+    return wlump.Read();
 }
 
 //==========================================================================
@@ -172,24 +62,104 @@ static inline int S_GetPitch(int num)
 //
 //==========================================================================
 
+void S_PauseSounds(bool paused)
+{
+    soundEngine->SetPaused(paused);
+}
+
+//==========================================================================
+//
+// 
+//
+//==========================================================================
+
+void cacheAllSounds(void)
+{
+    for (int i=0, j=0; i < MAXSOUNDS; ++i)
+    {
+        soundEngine->CacheSound(i);
+        if ((i&31) == 0)
+            gameHandleEvents();
+    }
+}
+
+//==========================================================================
+//
+// 
+//
+//==========================================================================
+
+static inline int S_GetPitch(int num)
+{
+    auto const* snd = (sound_t*)soundEngine->GetUserData(num);
+    int const   range = abs(snd->pitchEnd - snd->pitchStart);
+
+    return (range == 0) ? snd->pitchStart : min(snd->pitchStart, snd->pitchEnd) + rand() % range;
+}
+
 float S_ConvertPitch(int lpitch)
 {
     return pow(2, lpitch / 1200.);   // I hope I got this right that ASS uses a linear scale where 1200 is a full octave.
 }
 
+int S_GetUserFlags(int sndnum)
+{
+    return ((sound_t*)soundEngine->GetUserData(sndnum + 1))->flags;
+}
+
 //==========================================================================
 //
 // 
 //
 //==========================================================================
 
-static int S_CalcDistAndAng(int spriteNum, int soundNum, int sectNum, int angle,
+int S_DefineSound(unsigned index, const char *filename, int minpitch, int maxpitch, int priority, int type, int distance, float volume)
+{
+    if ((unsigned)index >= MAXSOUNDS)
+        return -1;
+
+    auto& S_sfx = soundEngine->GetSounds();
+    index++;
+    unsigned oldindex = S_sfx.Size();
+    if (index >= S_sfx.Size())
+    {
+        S_sfx.Resize(index + 1);
+        for (; oldindex <= index; oldindex++)
+        {
+            S_sfx[oldindex].Clear();
+        }
+    }
+    auto sfx = &S_sfx[index];
+    bool alreadydefined = !sfx->bTentative;
+    sfx->UserData.Resize(sizeof(sound_t));
+    auto sndinf = (sound_t*)sfx->UserData.Data();
+    sndinf->flags = type & ~SF_ONEINST_INTERNAL;
+    if (sndinf->flags & SF_LOOP)
+        sndinf->flags |= SF_ONEINST_INTERNAL;
+
+    sndinf->pitchStart = clamp(minpitch, INT16_MIN, INT16_MAX);
+    sndinf->pitchEnd = clamp(maxpitch, INT16_MIN, INT16_MAX);
+    sndinf->priority = priority & 255;
+    sndinf->volAdjust = clamp(distance, INT16_MIN, INT16_MAX);
+    sfx->Volume = volume;
+    return 0;
+}
+
+
+//==========================================================================
+//
+// 
+//
+//==========================================================================
+
+static int S_CalcDistAndAng(int spriteNum, int soundNum, int sectNum,
                              const vec3_t *cam, const vec3_t *pos, int *distPtr, FVector3 *sndPos)
 {
     // Todo: Some of this hackery really should be done using rolloff and attenuation instead of messing around with the sound origin.
     int orgsndist = 0, sndang = 0, sndist = 0, explosion = 0;
-    int userflags = soundEngine->GetUserFlags(soundNum);
-    int dist_adjust = soundEngine->GetUserData(soundNum);
+    auto const* snd = (sound_t*)soundEngine->GetUserData(soundNum);
+    int userflags = snd->flags;
+    int dist_adjust = snd->volAdjust;
 
     if (PN(spriteNum) == APLAYER && P_Get(spriteNum) == screenpeek)
         goto sound_further_processing;
@@ -256,67 +226,93 @@ boost:
 //
 //==========================================================================
 
-void S_Update(void)
+void S_GetCamera(vec3_t** c, int32_t* ca, int32_t* cs)
 {
-    if ((g_player[myconnectindex].ps->gm & (MODE_GAME | MODE_DEMO)) == 0)
-        return;
-
-    g_numEnvSoundsPlaying = 0;
-
-    const vec3_t* c;
-    int32_t ca, cs;
-
     if (ud.camerasprite == -1)
     {
         if (ud.overhead_on != 2)
         {
-            c = &CAMERA(pos);
-            cs = CAMERA(sect);
-            ca = fix16_to_int(CAMERA(q16ang));
+            if (c) *c = &CAMERA(pos);
+            if (cs) *cs = CAMERA(sect);
+            if (ca) *ca = fix16_to_int(CAMERA(q16ang));
         }
         else
         {
             auto pPlayer = g_player[screenpeek].ps;
-            c = &pPlayer->pos;
-            cs = pPlayer->cursectnum;
-            ca = fix16_to_int(pPlayer->q16ang);
+            if (c) *c = &pPlayer->pos;
+            if (cs) *cs = pPlayer->cursectnum;
+            if (ca) *ca = fix16_to_int(pPlayer->q16ang);
         }
     }
     else
     {
-        c = &sprite[ud.camerasprite].pos;
-        cs = sprite[ud.camerasprite].sectnum;
-        ca = sprite[ud.camerasprite].ang;
+        if (c) *c = &sprite[ud.camerasprite].pos;
+        if (cs) *cs = sprite[ud.camerasprite].sectnum;
+        if (ca) *ca = sprite[ud.camerasprite].ang;
     }
+}
 
-    int       sndnum = 0;
-    int const highest = g_highestSoundIdx;
+//=========================================================================
+//
+// CalcPosVel
+//
+// The game specific part of the sound updater.
+//
+//=========================================================================
 
-    do
+void DukeSoundEngine::CalcPosVel(int type, const void* source, const float pt[3], int channum, int chanflags, FSoundID chanSound, FVector3* pos, FVector3* vel)
+{
+    if (pos != nullptr)
     {
-        if (g_sounds[sndnum].num == 0)
-            continue;
+        vec3_t* campos;
+        int32_t camsect;
 
-        for (auto& voice : g_sounds[sndnum].voices)
+        S_GetCamera(&campos, nullptr, &camsect);
+        if (vel) vel->Zero();
+
+        // [BL] Moved this case out of the switch statement to make code easier
+        //      on static analysis.
+        if (type == SOURCE_Unattached)
         {
-            int const spriteNum = voice.owner;
-
-            if ((unsigned)spriteNum >= MAXSPRITES || voice.id <= FX_Ok || !FX_SoundActive(voice.id))
-                continue;
-
-            int sndist, sndang;
-
-            S_CalcDistAndAng(spriteNum, sndnum, cs, ca, c, (const vec3_t*)&sprite[spriteNum], &sndist, nullptr);
-
-            if (S_IsAmbientSFX(spriteNum))
-                g_numEnvSoundsPlaying++;
-
-            // AMBIENT_SOUND
-            //FX_Pan3D(voice.id, sndang >> 4, sndist >> 6);
-            voice.dist = sndist >> 6;
-            voice.clock++;
+            pos->X = pt[0];
+            pos->Y = campos && !(chanflags & CHAN_LISTENERZ) ? pt[1] : campos->z / 256.f;
+            pos->Z = pt[2];
         }
-    } while (++sndnum <= highest);
+        else
+        {
+            switch (type)
+            {
+            case SOURCE_None:
+            default:
+                break;
+
+            case SOURCE_Actor:
+            {
+                auto actor = (spritetype*)source;
+                assert(actor != nullptr);
+                if (actor != nullptr)
+                {
+                    S_CalcDistAndAng(int(actor - sprite), chanSound - 1, camsect, campos, &actor->pos, nullptr, pos);
+                    /*
+                    if (vel)
+                    {
+                        vel->X = float(actor->Vel.X * TICRATE);
+                        vel->Y = float(actor->Vel.Z * TICRATE);
+                        vel->Z = float(actor->Vel.Y * TICRATE);
+                    }
+                    */
+                }
+                break;
+            }
+
+            }
+
+            if ((chanflags & CHAN_LISTENERZ) && campos != nullptr)
+            {
+                pos->Y = campos->z / 256.f;
+            }
+        }
+    }
 }
 
 
@@ -326,7 +322,47 @@ void S_Update(void)
 //
 //==========================================================================
 
-int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos)
+void S_Update(void)
+{
+    SoundListener listener;
+    vec3_t* c;
+    int32_t ca, cs;
+
+    S_GetCamera(&c, &ca, &cs);
+
+    if (c != nullptr)
+    {
+        listener.angle = (float)ca * pi::pi() / 2048; // todo: Check value range for angle.
+        listener.velocity.Zero();
+        listener.position = { c->x / 16.f, c->z / 256.f, c->y / 16.f };
+        listener.underwater = false; 
+        // This should probably use a real environment instead of the pitch hacking in S_PlaySound3D.
+        // listenactor->waterlevel == 3;
+        //assert(primaryLevel->Zones.Size() > listenactor->Sector->ZoneNumber);
+        listener.Environment = 0;// primaryLevel->Zones[listenactor->Sector->ZoneNumber].Environment;
+        listener.valid = true;
+    }
+    else
+    {
+        listener.angle = 0;
+        listener.position.Zero();
+        listener.velocity.Zero();
+        listener.underwater = false;
+        listener.Environment = nullptr;
+        listener.valid = false;
+    }
+    listener.ListenerObject = ud.camerasprite == -1 ? nullptr : &sprite[ud.camerasprite];
+    soundEngine->SetListener(listener);
+}
+
+
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos, bool looped)
 {
     int32_t j = VM_OnEventWithReturn(EVENT_SOUND, spriteNum, screenpeek, num);
 
@@ -336,7 +372,7 @@ int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos)
     if (!soundEngine->isValidSoundId(sndnum) || !SoundEnabled() || (unsigned)spriteNum >= MAXSPRITES || (pPlayer->gm & MODE_MENU) ||
         (pPlayer->timebeforeexit > 0 && pPlayer->timebeforeexit <= GAMETICSPERSEC * 3)) return -1;
 
-    int userflags = soundEngine->GetUserFlags(sndnum);
+    int userflags = S_GetUserFlags(sndnum);
     if ((!(snd_speech & 1) && (userflags & SF_TALK)) || ((userflags & SF_ADULT) && adult_lockout))
         return -1;
 
@@ -351,10 +387,15 @@ int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos)
         else if ((snd_speech & 1) != 1)
             return -1;
 
+
+        bool foundone =  soundEngine->EnumerateChannels([&](FSoundChan* chan)
+            {
+                auto sid = chan->SoundID;
+                auto flags = ((sound_t*)soundEngine->GetUserData(sid))->flags;
+                return !!(flags & SF_TALK);
+            });
         // don't play if any Duke talk sounds are already playing
-        for (j = 0; j <= g_highestSoundIdx; ++j)
-            if ((g_sounds[j].m & SF_TALK) && g_sounds[j].num > 0)
-                return -1;
+        if (foundone) return -1;
     }
     else if ((userflags & (SF_DTAG | SF_GLOBAL)) == SF_DTAG)  // Duke-Tag sound
     {
@@ -364,7 +405,12 @@ int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos)
 
     int32_t    sndist;
     FVector3 sndpos;    // this is in sound engine space.
-    int const  explosionp = S_CalcDistAndAng(spriteNum, sndnum, CAMERA(sect), fix16_to_int(CAMERA(q16ang)), &CAMERA(pos), pos, &sndist, &sndpos);
+
+    vec3_t* campos;
+    int32_t camsect;
+
+    S_GetCamera(&campos, nullptr, &camsect);
+    int const  explosionp = S_CalcDistAndAng(spriteNum, sndnum, camsect, campos, pos, &sndist, &sndpos);
     int        pitch = S_GetPitch(sndnum);
     auto const pOther = g_player[screenpeek].ps;
 
@@ -387,7 +433,7 @@ int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos)
             pitch = -768;
     }
 
-    bool is_playing = soundEngine->GetSoundPlayingInfo(SOURCE_Any, nullptr, sndnum);
+    bool is_playing = soundEngine->GetSoundPlayingInfo(SOURCE_Any, nullptr, sndnum+1);
     if (is_playing &&  PN(spriteNum) != MUSICANDSFX)
         S_StopEnvSound(sndnum, spriteNum);
 
@@ -399,7 +445,8 @@ int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos)
     }
 
     // Now 
-    auto chan = soundEngine->StartSound(SOURCE_Actor, &sprite[spriteNum], &sndpos, CHAN_AUTO, sndnum, 1.f, 1.f, nullptr, S_ConvertPitch(pitch));
+    auto chflg = ((userflags & SF_LOOP) || looped) ? CHAN_AUTO | CHAN_LOOP : CHAN_AUTO;
+    auto chan = soundEngine->StartSound(SOURCE_Actor, &sprite[spriteNum], &sndpos, chflg, sndnum+1, 1.f, 1.f, nullptr, S_ConvertPitch(pitch));
     if (!chan) return -1;
     return 0;
 }
@@ -410,19 +457,20 @@ int S_PlaySound3D(int num, int spriteNum, const vec3_t* pos)
 //
 //==========================================================================
 
-int S_PlaySound(int num)
+int S_PlaySound(int num, bool looped)
 {
     int sndnum = VM_OnEventWithReturn(EVENT_SOUND, g_player[screenpeek].ps->i, screenpeek, num);
 
-    if (!soundEngine->isValidSoundId(sndnum) || !SoundEnabled()) return -1;
+    if (!soundEngine->isValidSoundId(sndnum+1) || !SoundEnabled()) return -1;
 
-    int userflags = soundEngine->GetUserFlags(sndnum);
+    int userflags = S_GetUserFlags(sndnum);
     if ((!(snd_speech & 1) && (userflags & SF_TALK)) || ((userflags & SF_ADULT) && adult_lockout))
         return -1;
 
-    int const pitch = S_GetPitch(num);
+    int const pitch = S_GetPitch(sndnum);
 
-    soundEngine->StartSound(SOURCE_None, nullptr, nullptr, (userflags & SF_LOOP)? CHAN_AUTO|CHAN_LOOP : CHAN_AUTO, sndnum, 1.f, ATTN_NONE, nullptr, S_ConvertPitch(pitch));
+    auto chflg = ((userflags & SF_LOOP) || looped) ? CHAN_AUTO | CHAN_LOOP : CHAN_AUTO;
+    soundEngine->StartSound(SOURCE_None, nullptr, nullptr, chflg, sndnum + 1, 1.f, ATTN_NONE, nullptr, S_ConvertPitch(pitch));
     /* for reference. May still be needed for balancing later.
        : FX_Play3D(snd.ptr, snd.siz, FX_ONESHOT, pitch, 0, 255 - LOUDESTVOLUME, snd.pr, snd.volume,
         (num * MAXSOUNDINSTANCES) + sndnum);
@@ -436,18 +484,18 @@ int S_PlaySound(int num)
 //
 //==========================================================================
 
-int A_PlaySound(int soundNum, int spriteNum)
+int A_PlaySound(int soundNum, int spriteNum, bool looped)
 {
-    return (unsigned)spriteNum >= MAXSPRITES ? S_PlaySound(soundNum) :
-        S_PlaySound3D(soundNum, spriteNum, &sprite[spriteNum].pos);
+    return (unsigned)spriteNum >= MAXSPRITES ? S_PlaySound(soundNum, looped) :
+        S_PlaySound3D(soundNum, spriteNum, &sprite[spriteNum].pos, looped);
 }
 
 void S_StopEnvSound(int sndNum, int sprNum)
 {
     if (sprNum < -1 || sprNum >= MAXSPRITES) return;
 
-    if (sprNum == -1) soundEngine->StopSoundID(sndNum);
-    else soundEngine->StopSound(SOURCE_Actor, &sprite[sprNum], -1, sndNum);
+    if (sprNum == -1) soundEngine->StopSoundID(sndNum+1);
+    else soundEngine->StopSound(SOURCE_Actor, &sprite[sprNum], -1, sndNum+1);
 }
 
 void S_ChangeSoundPitch(int soundNum, int spriteNum, int pitchoffset)
@@ -456,11 +504,11 @@ void S_ChangeSoundPitch(int soundNum, int spriteNum, int pitchoffset)
     double expitch = pow(2, pitchoffset / 1200.);   // I hope I got this right that ASS uses a linear scale where 1200 is a full octave.
     if (spriteNum == -1)
     {
-        soundEngine->ChangeSoundPitch(SOURCE_Unattached, nullptr, CHAN_AUTO, expitch, soundNum);
+        soundEngine->ChangeSoundPitch(SOURCE_Unattached, nullptr, CHAN_AUTO, expitch, soundNum+1);
     }
     else
     {
-        soundEngine->ChangeSoundPitch(SOURCE_Actor, &sprite[spriteNum], CHAN_AUTO, expitch, soundNum);
+        soundEngine->ChangeSoundPitch(SOURCE_Actor, &sprite[spriteNum], CHAN_AUTO, expitch, soundNum+1);
     }
 }
 
@@ -472,9 +520,9 @@ void S_ChangeSoundPitch(int soundNum, int spriteNum, int pitchoffset)
 
 int A_CheckSoundPlaying(int spriteNum, int soundNum)
 {
-    if (spriteNum == -1) return soundEngine->GetSoundPlayingInfo(SOURCE_Any, nullptr, soundNum);
+    if (spriteNum == -1) return soundEngine->GetSoundPlayingInfo(SOURCE_Any, nullptr, soundNum+1);
     if ((unsigned)spriteNum >= MAXSPRITES) return false;
-    return soundEngine->IsSourcePlayingSomething(SOURCE_Actor, &sprite[spriteNum], CHAN_AUTO, soundNum);
+    return soundEngine->IsSourcePlayingSomething(SOURCE_Actor, &sprite[spriteNum], CHAN_AUTO, soundNum+1);
 }
 
 // Check if actor <i> is playing any sound.
@@ -486,7 +534,7 @@ int A_CheckAnySoundPlaying(int spriteNum)
 
 int S_CheckSoundPlaying(int soundNum)
 {
-    return soundEngine->GetSoundPlayingInfo(SOURCE_Any, nullptr, soundNum);
+    return soundEngine->GetSoundPlayingInfo(SOURCE_Any, nullptr, soundNum+1);
 }
 
 //==========================================================================
diff --git a/source/duke3d/src/sounds.h b/source/duke3d/src/sounds.h
index d9cdd16fb..9111a4c48 100644
--- a/source/duke3d/src/sounds.h
+++ b/source/duke3d/src/sounds.h
@@ -36,38 +36,20 @@ BEGIN_DUKE_NS
 
 // KEEPINSYNC lunatic/con_lang.lua
 #define MAXSOUNDS           4096
-#define MAXSOUNDINSTANCES   8
 #define LOUDESTVOLUME       111
-#define MUSIC_ID            -65536
 
 typedef struct
 {
-    int16_t  owner;
-    int16_t  id;
-    uint16_t dist;
-    uint16_t clock;
-} assvoice_t;
-
-typedef struct
-{
-    char *    ptr, *filename;                // 8b/16b
-    int32_t   length, num, siz;              // 12b
-    float     volume;                        // 4b
-    assvoice_t voices[MAXSOUNDINSTANCES];  // 64b
-    int16_t   ps, pe, vo;                    // 6b
-    char      pr, m;                         // 2b
+    int pitchStart, pitchEnd, volAdjust;
+    int priority, flags;
 } sound_t;
 
-extern sound_t g_sounds[MAXSOUNDS];
-extern int32_t g_numEnvSoundsPlaying,g_highestSoundIdx;
-
 int A_CheckSoundPlaying(int spriteNum,int soundNum);
-int A_PlaySound(int soundNum, int spriteNum);
+int A_PlaySound(int soundNum, int spriteNum, bool looped = false);
 void S_Callback(intptr_t num);
 int A_CheckAnySoundPlaying(int spriteNum);
 int S_CheckSoundPlaying(int soundNum);
 inline void S_ClearSoundLocks(void) {}
-int32_t S_LoadSound(uint32_t num);
 void cacheAllSounds(void);
 void S_MenuSound(void);
 void S_PauseMusic(bool paused);
@@ -76,14 +58,14 @@ void S_PlayLevelMusicOrNothing(unsigned int);
 int S_TryPlaySpecialMusic(unsigned int);
 void S_PlaySpecialMusicOrNothing(unsigned int);
 void S_ContinueLevelMusic(void);
-int S_PlaySound(int num);
-int S_PlaySound3D(int num, int spriteNum, const vec3_t *pos);
-void S_SoundShutdown(void);
-void S_SoundStartup(void);
+int S_PlaySound(int num, bool looped = false);
+int S_PlaySound3D(int num, int spriteNum, const vec3_t *pos, bool looped = false);
 void S_StopEnvSound(int sndNum,int sprNum);
 void S_StopAllSounds(void);
 void S_Update(void);
 void S_ChangeSoundPitch(int soundNum, int spriteNum, int pitchoffset);
+int S_GetUserFlags(int sndnum);
+int S_DefineSound(unsigned index, const char* filename, int ps, int pe, int pr, int m, int vo, float vol);
 
 static inline bool S_IsAmbientSFX(int spriteNum)
 {
diff --git a/source/rr/src/osdcmds.cpp b/source/rr/src/osdcmds.cpp
index 57b59fec9..66eecd058 100644
--- a/source/rr/src/osdcmds.cpp
+++ b/source/rr/src/osdcmds.cpp
@@ -169,19 +169,6 @@ static int osdcmd_noclip(osdcmdptr_t UNUSED(parm))
     return OSDCMD_OK;
 }
 
-static int osdcmd_restartsound(osdcmdptr_t UNUSED(parm))
-{
-    UNREFERENCED_CONST_PARAMETER(parm);
-    S_SoundShutdown();
-
-    S_SoundStartup();
-
-    FX_StopAllSounds();
-    S_ClearSoundLocks();
-
-    return OSDCMD_OK;
-}
-
 int osdcmd_restartmap(osdcmdptr_t UNUSED(parm))
 {
     UNREFERENCED_CONST_PARAMETER(parm);
@@ -669,7 +656,6 @@ int32_t registerosdcommands(void)
     OSD_RegisterFunction("printtimes", "printtimes: prints VM timing statistics", osdcmd_printtimes);
 
     OSD_RegisterFunction("restartmap", "restartmap: restarts the current map", osdcmd_restartmap);
-    OSD_RegisterFunction("restartsound","restartsound: reinitializes the sound system",osdcmd_restartsound);
 
     OSD_RegisterFunction("spawn","spawn <picnum> [palnum] [cstat] [ang] [x y z]: spawns a sprite with the given properties",osdcmd_spawn);
 
diff --git a/source/thirdparty/include/fix16.h b/source/thirdparty/include/fix16.h
index 54a31acc1..f02a4d41f 100644
--- a/source/thirdparty/include/fix16.h
+++ b/source/thirdparty/include/fix16.h
@@ -37,7 +37,7 @@ static FORCE_INLINE CONSTEXPR fix16_t fix16_from_int(int a)     { return a * fix
 static FORCE_INLINE CONSTEXPR float   fix16_to_float(fix16_t a) { return (float)a / fix16_one; }
 static FORCE_INLINE CONSTEXPR double  fix16_to_dbl(fix16_t a)   { return (double)a / fix16_one; }
 
-static inline int fix16_to_int(fix16_t a)
+static inline constexpr int fix16_to_int(fix16_t a)
 {
 #ifdef FIXMATH_NO_ROUNDING
     return (a >> 16);
diff --git a/wadsrc/static/demolition/menudef.txt b/wadsrc/static/demolition/menudef.txt
index 944b77c4e..de63e8a1e 100644
--- a/wadsrc/static/demolition/menudef.txt
+++ b/wadsrc/static/demolition/menudef.txt
@@ -1344,7 +1344,7 @@ OptionMenu AdvSoundOptions //protected
 	Submenu "$SNDMNU_MIDIPLAYER",		"MidiPlayerOptions"
 	Submenu "$SNDMNU_MODREPLAYER",		"ModReplayerOptions"
 	StaticText " "
-	Command "$SNDMNU_RESTART",			"restartsound"
+	Command "$SNDMNU_RESTART",			"snd_reset"
 }