Driver conflict with another audio enhancer (Nahimic, Sonic Studio, or Voicemeeter). Fix:

The DAX API service is a vehicle, not a destination. Install the Dolby Access app or the official Dolby Atmos SDK , and the service will come along for the ride.

The service typically runs as an executable named or DAX2API.exe , depending on the version of the Dolby software installed. It is not a core Windows system file but is digitally signed and often comes pre-installed on devices from manufacturers like Lenovo , Dell , or Sony . Common Issues and Management

Dolby Laboratories is synonymous with premium sound. To bring their decades of audio engineering to the developer community, they offer the (often accessed via the Dolby.io platform).