Target likelihood fusion

Abstract

A system configured to improve SSL processing and/or target goal detection by fusing SSL data with object information to generate a combined target likelihood estimate that takes into account what the device knows about the surrounding environment. For example, the device may generate object information by performing object detection, floorplan estimation, distance measurements, and/or the like. Using this object information, the device may calculate a likelihood estimate value for each direction around the device, with known objects (e.g., walls) corresponding to low likelihood values. In response to an acoustic event (e.g., wakeword detection), the device may fuse the target likelihood estimates generated using SSL data and/or object information to generate the combined target likelihood estimate. Thus, the combined target likelihood estimate enables the device to accurately associate the acoustic event with a corresponding SSL track (e.g., direct sound) and ignore reflections caused by objects in the environment.