If audio is disabled, don't play background audio.

UI/BackgroundAudio.cpp

@@ -9,6 +9,7 @@
 #include "Core/HLE/__sceAudio.h"
 #include "Common/FixedSizeQueue.h"
 #include "GameInfoCache.h"
+#include "Core/Config.h"
 
 // Really simple looping in-memory AT3 player that also takes care of reading the file format.
 // Turns out that AT3 files used for this are modified WAVE files so fairly easy to parse.
@@ -176,6 +177,10 @@ void SetBackgroundAudioGame(const std::string &path) {
 		return;
 	}
 
+	if (!g_Config.bEnableSound) {
+		return;
+	}
+
 	gameLastChanged = time_now_d();
 	if (at3Reader) {
 		at3Reader->Shutdown();