Microphone crackling when Big Box is open (HID Polling Issue)

[xitanul]

Hello. It took me a while to understand why my microphone was crackling when I was using Big Box but I finally found the culprit (thanks to the AI), the crackling is disappearing when I totally disable controller detection in Big Box. It seems like Big Box’s HID Polling/Controller Scanning is saturating my USB bus or creating DPC latency spikes that conflict with my USB microphone even when the software is in the background, any solution if I want to keep gamepads enabled ?

 

What I have already tested (without success):

• Changed Process Priorities (Big Box to "Below Normal", OBS to "Above Normal").

• Locked Big Box at 60 FPS and disabled all overlays (Nvidia/Discord).

• Matched sample rates (all devices set to 48kHz/16-bit)

• Changed USB ports (tried USB 2.0 and 3.0).

• Set Windows Power Plan to "High Performance" (Minimum CPU state at 100%) and GPU at high performance.

• Tried both Windows Media Player and FFmpeg video engines in Big Box.

 

My setup:

• Windows 10 (22H2)

• LaunchBox/Big Box (13.26-beta-2)

• Samson Meteor USB Microphone

• Controller: [8bitdo adapter + SNES classic controller]

• Inte core i5-4460

• RTX 4060

• 16GB DDR3

• ASROCK B85 pro 4