Static noise during playback, especially at low volumes or during start/stop of streams. Cause: Inefficient power management transitions. The ACP HDA Node enters a low-power state too aggressively. Fix (Linux): Disable power-saving for the HDA node:
Think of the ACP HDA Node as a middle manager between your CPU and your speakers/headphones: acp hda node
The ACP HDA Node is found in various systems, but its implementation can differ based on the system's requirements and design. For instance: Static noise during playback, especially at low volumes