Same issue here, I can’t get audio through my monitor (ASUSVX238) on 3x/4x, yet I can hear it on 2x. My capture card (pexhdcap60L) gets audio just fine though with 3x/4x. Was there ever a fix for it? I know I can use the 3.5mm output, but the convenience of hdmi is so good. This is just for SNES by the way. I haven’t had a chance to test ps1/2.