diff --git a/Source/Core/AudioCommon/CubebStream.cpp b/Source/Core/AudioCommon/CubebStream.cpp
index e602691a389..1f7fb5cf450 100644
--- a/Source/Core/AudioCommon/CubebStream.cpp
+++ b/Source/Core/AudioCommon/CubebStream.cpp
@@ -40,14 +40,11 @@ CubebStream::CubebStream()
 #ifdef _WIN32
     : m_work_queue("Cubeb Worker")
 {
-  Common::Event sync_event;
-  m_work_queue.Push([this, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this] {
     auto const result = CoInitializeEx(nullptr, COINIT_MULTITHREADED | COINIT_DISABLE_OLE1DDE);
     m_coinit_success = result == S_OK;
     m_should_couninit = result == S_OK || result == S_FALSE;
   });
-  sync_event.Wait();
 }
 #else
     = default;
@@ -60,11 +57,8 @@ bool CubebStream::Init()
 #ifdef _WIN32
   if (!m_coinit_success)
     return false;
-  Common::Event sync_event;
-  m_work_queue.Push([this, &return_value, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this, &return_value] {
 #endif
-
     m_ctx = CubebUtils::GetContext();
     if (m_ctx)
     {
@@ -98,7 +92,6 @@ bool CubebStream::Init()
 
 #ifdef _WIN32
   });
-  sync_event.Wait();
 #endif
 
   return return_value;
@@ -111,9 +104,7 @@ bool CubebStream::SetRunning(bool running)
 #ifdef _WIN32
   if (!m_coinit_success)
     return false;
-  Common::Event sync_event;
-  m_work_queue.Push([this, running, &return_value, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this, running, &return_value] {
 #endif
     if (running)
       return_value = cubeb_stream_start(m_stream) == CUBEB_OK;
@@ -121,7 +112,6 @@ bool CubebStream::SetRunning(bool running)
       return_value = cubeb_stream_stop(m_stream) == CUBEB_OK;
 #ifdef _WIN32
   });
-  sync_event.Wait();
 #endif
 
   return return_value;
@@ -130,9 +120,7 @@ bool CubebStream::SetRunning(bool running)
 CubebStream::~CubebStream()
 {
 #ifdef _WIN32
-  Common::Event sync_event;
-  m_work_queue.Push([this, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this] {
 #endif
     cubeb_stream_stop(m_stream);
     cubeb_stream_destroy(m_stream);
@@ -144,7 +132,6 @@ CubebStream::~CubebStream()
     }
     m_coinit_success = false;
   });
-  sync_event.Wait();
 #endif
   m_ctx.reset();
 }
@@ -154,13 +141,10 @@ void CubebStream::SetVolume(int volume)
 #ifdef _WIN32
   if (!m_coinit_success)
     return;
-  Common::Event sync_event;
-  m_work_queue.Push([this, volume, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this, volume] {
 #endif
     cubeb_stream_set_volume(m_stream, volume / 100.0f);
 #ifdef _WIN32
   });
-  sync_event.Wait();
 #endif
 }
diff --git a/Source/Core/Core/HW/EXI/EXI_DeviceMic.cpp b/Source/Core/Core/HW/EXI/EXI_DeviceMic.cpp
index 995376486e0..0c336073002 100644
--- a/Source/Core/Core/HW/EXI/EXI_DeviceMic.cpp
+++ b/Source/Core/Core/HW/EXI/EXI_DeviceMic.cpp
@@ -36,14 +36,11 @@ void CEXIMic::StreamInit()
 #ifdef _WIN32
   if (!m_coinit_success)
     return;
-  Common::Event sync_event;
-  m_work_queue.Push([this, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this] {
 #endif
     m_cubeb_ctx = CubebUtils::GetContext();
 #ifdef _WIN32
   });
-  sync_event.Wait();
 #endif
 }
 
@@ -56,14 +53,11 @@ void CEXIMic::StreamTerminate()
 #ifdef _WIN32
     if (!m_coinit_success)
       return;
-    Common::Event sync_event;
-    m_work_queue.Push([this, &sync_event] {
-      Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+    m_work_queue.PushBlocking([this] {
 #endif
       m_cubeb_ctx.reset();
 #ifdef _WIN32
     });
-    sync_event.Wait();
 #endif
   }
 }
@@ -104,9 +98,7 @@ void CEXIMic::StreamStart()
 #ifdef _WIN32
   if (!m_coinit_success)
     return;
-  Common::Event sync_event;
-  m_work_queue.Push([this, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this] {
 #endif
     // Open stream with current parameters
     stream_size = buff_size_samples * 500;
@@ -142,7 +134,6 @@ void CEXIMic::StreamStart()
     INFO_LOG_FMT(EXPANSIONINTERFACE, "started cubeb stream");
 #ifdef _WIN32
   });
-  sync_event.Wait();
 #endif
 }
 
@@ -151,9 +142,7 @@ void CEXIMic::StreamStop()
   if (m_cubeb_stream)
   {
 #ifdef _WIN32
-    Common::Event sync_event;
-    m_work_queue.Push([this, &sync_event] {
-      Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+    m_work_queue.PushBlocking([this] {
 #endif
       if (cubeb_stream_stop(m_cubeb_stream) != CUBEB_OK)
         ERROR_LOG_FMT(EXPANSIONINTERFACE, "Error stopping cubeb stream");
@@ -161,7 +150,6 @@ void CEXIMic::StreamStop()
       m_cubeb_stream = nullptr;
 #ifdef _WIN32
     });
-    sync_event.Wait();
 #endif
   }
 
@@ -217,14 +205,11 @@ CEXIMic::CEXIMic(Core::System& system, int index)
   next_int_ticks = 0;
 
 #ifdef _WIN32
-  Common::Event sync_event;
-  m_work_queue.Push([this, &sync_event] {
-    Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+  m_work_queue.PushBlocking([this] {
     auto result = ::CoInitializeEx(nullptr, COINIT_MULTITHREADED | COINIT_DISABLE_OLE1DDE);
     m_coinit_success = result == S_OK;
     m_should_couninit = result == S_OK || result == S_FALSE;
   });
-  sync_event.Wait();
 #endif
 
   StreamInit();
@@ -237,13 +222,10 @@ CEXIMic::~CEXIMic()
 #ifdef _WIN32
   if (m_should_couninit)
   {
-    Common::Event sync_event;
-    m_work_queue.Push([this, &sync_event] {
-      Common::ScopeGuard sync_event_guard([&sync_event] { sync_event.Set(); });
+    m_work_queue.PushBlocking([this] {
       m_should_couninit = false;
       CoUninitialize();
     });
-    sync_event.Wait();
   }
   m_coinit_success = false;
 #endif