diff --git a/src/engine/engine.h b/src/engine/engine.h
index 63250acce..8d8588d12 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -52,10 +52,10 @@ class DivWorkPool;
 #define EXTERN_BUSY_BEGIN_SOFT e->softLocked=true; e->isBusy.lock();
 #define EXTERN_BUSY_END e->isBusy.unlock(); e->softLocked=false;
 
-//#define DIV_UNSTABLE
+#define DIV_UNSTABLE
 
-#define DIV_VERSION "0.6.8.1"
-#define DIV_ENGINE_VERSION 228
+#define DIV_VERSION "dev229"
+#define DIV_ENGINE_VERSION 229
 // for imports
 #define DIV_VERSION_MOD 0xff01
 #define DIV_VERSION_FC 0xff02
diff --git a/src/engine/fileOps/fur.cpp b/src/engine/fileOps/fur.cpp
index 47e2c5d38..c8ace42c9 100644
--- a/src/engine/fileOps/fur.cpp
+++ b/src/engine/fileOps/fur.cpp
@@ -2100,6 +2100,12 @@ bool DivEngine::loadFur(unsigned char* file, size_t len, int variantID) {
           ds.systemFlags[i].set("chipType",1);
         }
       }
+    } else if (ds.version<229) {
+      for (int i=0; i<ds.systemLen; i++) {
+        if (ds.system[i]==DIV_SYSTEM_VERA) {
+          ds.systemFlags[i].set("chipType",2);
+        }
+      }
     }
 
     // SNES no anti-click
diff --git a/src/engine/platform/sound/vera_psg.c b/src/engine/platform/sound/vera_psg.c
index 597aa5974..d7367c3b8 100644
--- a/src/engine/platform/sound/vera_psg.c
+++ b/src/engine/platform/sound/vera_psg.c
@@ -81,7 +81,7 @@ render(struct VERA_PSG* psg, int16_t *left, int16_t *right)
 		if ((psg->chipType >= 1) && (!ch->left && !ch->right)) {
 			new_phase = 0;
 		}
-		if ((ch->phase & 0x10000) != (new_phase & 0x10000)) {
+		if ((psg->chipType < 3) ? (ch->phase & 0x10000) != (new_phase & 0x10000) : (ch->phase & 0x10000) && !(new_phase & 0x10000)) {
 			ch->noiseval = (psg->chipType < 1) ? psg->noiseOut : (psg->noiseState >> 1) & 0x3f;
 		}
 		ch->phase = new_phase;
diff --git a/src/engine/platform/vera.cpp b/src/engine/platform/vera.cpp
index 9a7692039..29f6df07d 100644
--- a/src/engine/platform/vera.cpp
+++ b/src/engine/platform/vera.cpp
@@ -543,7 +543,7 @@ void DivPlatformVERA::poke(std::vector<DivRegWrite>& wlist) {
 }
 
 void DivPlatformVERA::setFlags(const DivConfig& flags) {
-  psg->chipType=flags.getInt("chipType",2);
+  psg->chipType=flags.getInt("chipType",3);
   chipClock=25000000;
   CHECK_CUSTOM_CLOCK;
   rate=chipClock/512;
diff --git a/src/gui/sysConf.cpp b/src/gui/sysConf.cpp
index df9ee8e37..6243e4021 100644
--- a/src/gui/sysConf.cpp
+++ b/src/gui/sysConf.cpp
@@ -2552,7 +2552,7 @@ bool FurnaceGUI::drawSysConf(int chan, int sysPos, DivSystem type, DivConfig& fl
       break;
     }
     case DIV_SYSTEM_VERA: {
-      int chipType=flags.getInt("chipType",2);
+      int chipType=flags.getInt("chipType",3);
 
       ImGui::Text(_("Chip revision:"));
       ImGui::Indent();
@@ -2568,6 +2568,10 @@ bool FurnaceGUI::drawSysConf(int chan, int sysPos, DivSystem type, DivConfig& fl
         chipType=2;
         altered=true;
       }
+      if (ImGui::RadioButton(_("X16 Emu R49 (Noise freq fix)"),chipType==3)) {
+        chipType=3;
+        altered=true;
+      }
       ImGui::Unindent();
 
       if (altered) {