diff --git a/src/general_menus.cpp b/src/general_menus.cpp
index 3295561d4..923bc6ad5 100644
--- a/src/general_menus.cpp
+++ b/src/general_menus.cpp
@@ -307,7 +307,7 @@ void menuProcSetup(uint8_t event)
         lcd_outdezAtt(GENERAL_PARAM_OFS,y,g_eeGeneral.contrast, attr|LEFT);
         if(attr) {
           CHECK_INCDEC_GENVAR(event, g_eeGeneral.contrast, 10, 45);
-          lcdSetRefVolt(g_eeGeneral.contrast);
+          lcdSetContrast();
         }
         break;
 
diff --git a/src/lcd.cpp b/src/lcd.cpp
index 593ae60be..aacb1f1fa 100644
--- a/src/lcd.cpp
+++ b/src/lcd.cpp
@@ -1032,3 +1032,7 @@ void refreshDisplay()
 }
 #endif
 
+void lcdSetContrast()
+{
+  lcdSetRefVolt(g_eeGeneral.contrast);
+}
diff --git a/src/lcd.h b/src/lcd.h
index 30723516d..5ae2b63a9 100644
--- a/src/lcd.h
+++ b/src/lcd.h
@@ -166,6 +166,7 @@ extern void lcd_img(uint8_t x, uint8_t y, const pm_uchar * img, uint8_t idx, uin
 extern void lcdSetRefVolt(unsigned char val);
 extern void lcd_init();
 extern void lcd_clear();
+extern void lcdSetContrast();
 
 extern void refreshDisplay();
 
diff --git a/src/open9x.cpp b/src/open9x.cpp
index 33d1b08b0..87e13ac09 100644
--- a/src/open9x.cpp
+++ b/src/open9x.cpp
@@ -954,7 +954,11 @@ void checkBacklight()
     BACKLIGHT_OFF;
 
 #if defined(PCBSTD) && defined(VOICE)
-  Voice.voice_process();
+  static uint8_t tmr10ms ;
+  if (tmr10ms != g_blinkTmr10ms) {
+    tmr10ms = g_blinkTmr10ms ;
+    Voice.voice_process() ;
+  }
 #endif
 }
 
@@ -981,7 +985,7 @@ void doSplash()
     AUDIO_TADA();
 
 #if defined(PCBSTD)
-    lcdSetRefVolt(g_eeGeneral.contrast);
+    lcdSetContrast();
 #else
     tmr10ms_t curTime = get_tmr10ms() + 10;
     uint8_t contrast = 10;
@@ -1171,7 +1175,7 @@ void message(const pm_char *title, const pm_char *t, const char *last MESSAGE_SO
     AUDIO_ERROR_MESSAGE(sound);
   }
   refreshDisplay();
-  lcdSetRefVolt(g_eeGeneral.contrast);
+  lcdSetContrast();
   clearKeyEvents();
 }
 
@@ -3151,7 +3155,7 @@ inline void open9xInit(OPEN9X_INIT_ARGS)
   }
 #endif
 
-  lcdSetRefVolt(g_eeGeneral.contrast);
+  lcdSetContrast();
   backlightOn();
 
 #if defined(PCBARM)