diff --git a/src/core/hle/DSOUND/DirectSound/DSStream_PacketManager.cpp b/src/core/hle/DSOUND/DirectSound/DSStream_PacketManager.cpp
index 0c0cd65de..af9731ee7 100644
--- a/src/core/hle/DSOUND/DirectSound/DSStream_PacketManager.cpp
+++ b/src/core/hle/DSOUND/DirectSound/DSStream_PacketManager.cpp
@@ -349,17 +349,14 @@ void DSStream_Packet_FlushEx_Reset(
     )
 {
     // Remove flags only (This is the only place it will remove other than FlushEx perform set/remove the flags.)
-    pThis->EmuFlags &= ~(DSE_FLAG_FLUSH_ASYNC | DSE_FLAG_ENVELOPE | DSE_FLAG_ENVELOPE2 | DSE_FLAG_PAUSE);
+    pThis->EmuFlags &= ~(DSE_FLAG_FLUSH_ASYNC | DSE_FLAG_ENVELOPE | DSE_FLAG_ENVELOPE2);
     pThis->Xb_rtFlushEx = 0LL;
-    pThis->Xb_Status = 0;
 }
 
 bool DSStream_Packet_Flush(
     XTL::X_CDirectSoundStream* pThis
     )
 {
-    DSStream_Packet_FlushEx_Reset(pThis);
-
     // If host's audio is still playing then return busy-state until buffer has stop playing.
     DWORD dwStatus;
     pThis->EmuDirectSoundBuffer8->GetStatus(&dwStatus);
@@ -376,5 +373,9 @@ bool DSStream_Packet_Flush(
     for (auto buffer = pThis->Host_BufferPacketArray.begin(); buffer != pThis->Host_BufferPacketArray.end();) {
         DSStream_Packet_Clear(buffer, XMP_STATUS_FLUSHED, pThis->Xb_lpfnCallback, pThis->Xb_lpvContext, pThis);
     }
+    // Clear flags and set status to zero.
+    DSStream_Packet_FlushEx_Reset(pThis);
+    pThis->EmuFlags &= ~DSE_FLAG_PAUSE;
+    pThis->Xb_Status = 0;
     return false;
 }
diff --git a/src/core/hle/DSOUND/DirectSound/DirectSoundStream.cpp b/src/core/hle/DSOUND/DirectSound/DirectSoundStream.cpp
index fcca1d21e..cf5c0e953 100644
--- a/src/core/hle/DSOUND/DirectSound/DirectSoundStream.cpp
+++ b/src/core/hle/DSOUND/DirectSound/DirectSoundStream.cpp
@@ -110,7 +110,7 @@ void DirectSoundDoWork_Stream(xboxkrnl::LARGE_INTEGER& time)
             if (pThis->Xb_rtFlushEx == 0LL) {
                 EmuLog(LOG_LEVEL::WARNING, "Attempted to flush without Xb_rtFlushEx set to non-zero");
             }
-            while(DSStream_Packet_Flush(pThis));
+            DSStream_Packet_Flush(pThis);
         } else {
             DSStream_Packet_Process(pThis);
         }
@@ -393,10 +393,14 @@ HRESULT WINAPI XTL::EMUPATCH(CDirectSoundStream_FlushEx)
     }
     // Remaining flags require X_DSSFLUSHEX_ASYNC to be include.
     else if ((dwFlags & X_DSSFLUSHEX_ASYNC) > 0) {
-
-        pThis->EmuFlags |= DSE_FLAG_FLUSH_ASYNC;
-        // If rtTimeStamp is zero'd, then it must be flush in worker thread right away.
+        // If rtTimeStamp is zero'd, then call flush once and allow process flush in worker thread.
         if (rtTimeStamp == 0LL) {
+            bool isBusy = DSStream_Packet_Flush(pThis);
+            if (!isBusy) {
+                // testcase: Obscure will crash after new game's video if not call DSStream_Packet_Flush in same thread.
+                // If flush is not busy, then we don't need worker thread to continue flushing.
+                return hRet;
+            }
             xboxkrnl::LARGE_INTEGER getTime;
             xboxkrnl::KeQuerySystemTime(&getTime);
             pThis->Xb_rtFlushEx = getTime.QuadPart;
@@ -405,6 +409,8 @@ HRESULT WINAPI XTL::EMUPATCH(CDirectSoundStream_FlushEx)
             pThis->Xb_rtFlushEx = rtTimeStamp;
         }
 
+        pThis->EmuFlags |= DSE_FLAG_FLUSH_ASYNC;
+
         // Set or remove flags (This is the only place it will set/remove other than flush perform remove the flags.)
         if ((dwFlags & X_DSSFLUSHEX_ENVELOPE) > 0) {
             pThis->Xb_rtFlushEx += (pThis->Xb_EnvolopeDesc.dwRelease * 512) / 48000;