--- a/src/app/virtualbox/src/VBox/Devices/Audio/HDAStreamPeriod.cpp
+++ b/src/app/virtualbox/src/VBox/Devices/Audio/HDAStreamPeriod.cpp
@@ -176,7 +176,9 @@
  */
 void hdaStreamPeriodEnd(PHDASTREAMPERIOD pPeriod)
 {
+#ifdef DEBUG
     Log3Func(("[SD%RU8] Took %zuus\n", pPeriod->u8SD, (RTTimeNanoTS() - pPeriod->Dbg.tsStartNs) / 1000));
+#endif
 
     if (!(pPeriod->fStatus & HDASTREAMPERIOD_FLAG_ACTIVE))
         return;
--- a/src/app/virtualbox/src/VBox/Devices/Audio/DrvAudio.cpp
+++ b/src/app/virtualbox/src/VBox/Devices/Audio/DrvAudio.cpp
@@ -1638,8 +1638,10 @@
 #endif
         uint32_t cbAvail             = AUDIOMIXBUF_S2B(&pHstStrmOut->MixBuf, AudioMixBufUsed(&pHstStrmOut->MixBuf));
 
+#ifdef DEBUG
         Log2Func(("[%s] %RU64ms (%zu bytes) elapsed, %zu bytes available\n",
                   pHstStrmOut->MixBuf.pszName, tsLastPlayedDeltaMs, cbElapsed, cbAvail));
+#endif
 
         if (!cbAvail) /* Nothing to play back? Skip. */
             continue;
--- a/src/app/virtualbox/src/VBox/Devices/Audio/DevHDA.cpp
+++ b/src/app/virtualbox/src/VBox/Devices/Audio/DevHDA.cpp
@@ -1393,7 +1393,9 @@
     if (   HDA_REG_FLAG_VALUE(pThis, INTCTL, GIE)
         && ((HDA_REG(pThis, INTSTS) & ~HDA_INTSTS_FLAG_GIS) & HDA_REG(pThis, INTCTL)))
     {
+#ifdef DEBUG
         Log3Func(("Asserted (%s)\n", pszSource));
+#endif
 
         PDMDevHlpPCISetIrq(pThis->CTX_SUFF(pDevIns), 0, 1 /* Assert */);
         pThis->u8IRQL = 1;
@@ -1405,7 +1407,9 @@
     }
     else
     {
+#ifdef DEBUG
         Log3Func(("Deasserted (%s)\n", pszSource));
+#endif
 
         PDMDevHlpPCISetIrq(pThis->CTX_SUFF(pDevIns), 0, 0 /* Deassert */);
         pThis->u8IRQL = 0;
@@ -1976,7 +1980,7 @@
         /* Make sure to also update the stream's DMA counter (based on its current LPIB value). */
         hdaStreamSetPosition(pThis, pStream, HDA_STREAM_REG(pThis, LPIB, pStream->u8SD));
 
-#ifdef LOG_ENABLED
+#ifdef DEBUG
         hdaBDLEDumpAll(pThis, pStream->u64BDLBase, pStream->u16LVI + 1);
 #endif
     }
@@ -2331,9 +2335,11 @@
 
     const uint64_t u64WalClkNew = hdaWalClkGetCurrent(pThis);
 
+#ifdef VBOX_STRICT
     Log3Func(("Cur: %RU64, New: %RU64 (force %RTbool) -> %RU64 %s\n",
               u64WalClkCur, u64WalClk, fForce,
               u64WalClkNew, u64WalClkNew == u64WalClk ? "[OK]" : "[DELAYED]"));
+#endif
 
     return (u64WalClkNew == u64WalClk);
 }
@@ -2658,7 +2664,7 @@
     PHDASTREAM pStream = hdaStreamFromID(pThis, HDA_SD_NUM_FROM_REG(pThis, STS, iReg));
     if (!pStream)
     {
-        AssertMsgFailed(("[SD%RU8] Warning: Writing SDSTS on non-attached stream (0x%x)\n",
+        Log3Func(("[SD%RU8] Warning: Writing SDSTS on non-attached stream (0x%x)\n",
                          HDA_SD_NUM_FROM_REG(pThis, STS, iReg), u32Value));
 
         DEVHDA_UNLOCK_BOTH(pThis);
@@ -3474,7 +3480,7 @@
 }
 # endif /* HDA_USE_DMA_ACCESS_HANDLER */
 
-# ifdef LOG_ENABLED
+# ifdef DEBUG
 static void hdaBDLEDumpAll(PHDASTATE pThis, uint64_t u64BDLBase, uint16_t cBDLE)
 {
     LogFlowFunc(("BDLEs @ 0x%x (%RU16):\n", u64BDLBase, cBDLE));
@@ -5230,11 +5236,13 @@
         RTCircBufReleaseReadBlock(pStrm->State.pCircBuf, 0 /* Don't advance read pointer -- see comment above */);
     }
 
+#ifdef VBOX_STRICT
     Log2Func(("[SD%RU8] LPIB=%RU32, CBL=%RU32, LVI=%RU32\n",
               pStrm->u8SD,
               HDA_STREAM_REG(pThis, LPIB, pStrm->u8SD), HDA_STREAM_REG(pThis, CBL, pStrm->u8SD), HDA_STREAM_REG(pThis, LVI, pStrm->u8SD)));
+#endif
 
-#ifdef LOG_ENABLED
+#ifdef DEBUG
     hdaBDLEDumpAll(pThis, pStrm->u64BDLBase, pStrm->u16LVI + 1);
 #endif
 
@@ -5645,7 +5653,7 @@
                     Log2Func(("[SD%RU8] LPIB=%RU32, CBL=%RU32, LVI=%RU32\n",
                               uStreamID,
                               HDA_STREAM_REG(pThis, LPIB, uStreamID), HDA_STREAM_REG(pThis, CBL, uStreamID), HDA_STREAM_REG(pThis, LVI, uStreamID)));
-#ifdef LOG_ENABLED
+#ifdef DEBUG
                     hdaBDLEDumpAll(pThis, pStrm->u64BDLBase, pStrm->u16LVI + 1);
 #endif
                 }
@@ -5855,7 +5863,7 @@
         Log2Func(("[SD%RU8] LPIB=%RU32, CBL=%RU32, LVI=%RU32\n",
                   uStreamID,
                   HDA_STREAM_REG(pThis, LPIB, uStreamID), HDA_STREAM_REG(pThis, CBL, uStreamID), HDA_STREAM_REG(pThis, LVI, uStreamID)));
-#ifdef LOG_ENABLED
+#ifdef DEBUG
         hdaBDLEDumpAll(pThis, pStrm->u64BDLBase, pStrm->u16LVI + 1);
 #endif
         /** @todo (Re-)initialize active periods? */