diff --git a/src/multimedia/qqtaudiomanager.cpp b/src/multimedia/qqtaudiomanager.cpp
index 9ab848a7..574a0269 100644
--- a/src/multimedia/qqtaudiomanager.cpp
+++ b/src/multimedia/qqtaudiomanager.cpp
@@ -41,14 +41,14 @@ void QQtAudioManager::startInput()
 {
     stopInput();
     mInputManager = new QAudioInput ( mInputDeviceInfo, mInputAudioFormat, this );
-    if ( QAudio::NoError != mInputManager->error() )
+    mInputDevice = mInputManager->start();
+    if ( !mInputDevice || QAudio::NoError != mInputManager->error() )
     {
         pline() << mInputDeviceInfo.deviceName() << mInputAudioFormat.sampleSize() << mInputAudioFormat.sampleRate() <<
                 mInputAudioFormat.channelCount() << "open failed, errcode:" << mInputManager->error();
         delete mInputManager;
         return;
     }
-    mInputDevice = mInputManager->start();
     connect ( mInputDevice, SIGNAL ( readyRead() ), this, SIGNAL ( readyRead() ) );
 }
 
@@ -83,14 +83,14 @@ void QQtAudioManager::startOutput()
 {
     stopOutput();
     mOutputManager = new QAudioOutput ( mOutputDeviceInfo, mOutputAudioFormat, this );
-    if ( QAudio::NoError != mOutputManager->error() )
+    mOutputDevice = mOutputManager->start();
+    if ( !mOutputDevice || QAudio::NoError != mOutputManager->error() )
     {
         pline() << mOutputDeviceInfo.deviceName() << mOutputAudioFormat.sampleSize() << mOutputAudioFormat.sampleRate() <<
                 mOutputAudioFormat.channelCount() << "open failed, errcode:" << mOutputManager->error();
         delete mOutputManager;
         return;
     }
-    mOutputDevice = mOutputManager->start();
 }
 
 void QQtAudioManager::stopOutput()