Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello, last year under Windows 8.1 and an ASUS Xonar DGX Soundcard my sound was all fine. I recently upgraded to Windows 10 64bit Pro and An Asus Stix Soar Soundcard and now im experiencing very heavy distortion in wow, sometimes i hear sounds very quiet and distorted and when i hear them, they sound like coming straight out of a tin can, like, VERY distorted. cant describe it properly, it sounds really awful.

i already set wow.exe in compatibility-mode, ran as administrator, done the things mentioned in this thread: https://forum.nostalrius.org/viewtopic.php?f=45&t=7305 and checked my sound.log file, which says:

2/29 04:07:32.832 Sound::Initialize()
2/29 04:07:32.832 fmod.dll version 3.75 loaded
2/29 04:07:32.854 memory system configured: SMem wrappers
2/29 04:07:32.912 Output system: 2 'Direct Sound'
2/29 04:07:32.912 Driver: 0 'Primärer Soundtreiber' 00000000
2/29 04:07:32.912 Mixer: 0 'MMXP6'
2/29 04:07:32.912 Buffer size: 50ms
2/29 04:07:32.912 Channels: 128 (128 software, 0 2D hardware(dsound), 0 3D hardware)
2/29 04:07:32.912 Output rate: 44100 Hz
2/29 04:07:32.912 Initialization flags: 00000082
2/29 04:07:32.912 Sound::Initialize() complete


but nothing seems to help. please help me :/

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