Unreal Engine 4.8 doesn't produce any sound

Hi there,

Engine ver. 4.8.3-2634408
Windows 7

I can’t hear any sound, though I could a while back. Since then I don’t know what have changed. The engine doesn’t seem to produce any sound in my system - even when I play a sound cue, or an in-game SFX/Music Score.

I tried other solutions, including the real-time in editor, and made sure real-time audio (under settings tab) is maximized.


after looking at this I got to the line:

	if (DeviceProperties->XAudio2Dll == nullptr)

then, the debug printed:

‘UE4Editor.exe’ (Win32): Loaded ‘C:\Windows\System32\XAudio2_7.dll’. Cannot find or open the PDB file.

Also, the following if-condition was carried out:

if (XAudio2Create(&DeviceProperties->XAudio2, Flags, AUDIO_HWTHREAD) != S_OK)
		UE_LOG(LogInit, Log, TEXT( "Failed to create XAudio2 interface" ) );
		return( false );

with printing:

[2016.03.05-18.55.57:459][ 0]LogInit: Failed to create XAudio2 interface

Fixed it by installing DX End User Runtimes from June '10