Amazon patents smart audio detection that only listens when needed

1. A system, comprising: one or more processors; and non-transitory computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising: storing first data representing acoustic event detection (AED) models, a first AED model of the AED models configured to detect a first acoustic event when represented in audio data, a second AED model of the AED models configured to detect a second acoustic event when represented in the audio data; determining that user account data indicates devices associated with the user account data have been enrolled in one or more device functionalities associated with the first acoustic event; selecting, from second data indicating historic AED performed on the devices, a first device of the devices to be utilized to detect the first acoustic event; sending, to the first device and in response to the user account data indicating the devices have been enrolled in one or more device functionalities associated with the first acoustic event, third data representing the first AED model instead of the second AED model; determining, from fourth data indicating times of day when the first device detects the first acoustic event utilizing the first AED model, a time range for when the first AED model is to be activated, wherein the time range is determined from the times of day indicating a pattern of detecting the first acoustic event during the time range and from a pattern of lack of detections of the first acoustic event at times other than the time range; and sending fifth data to the first device, the fifth data indicating an activation schedule for when the first AED model is to be queried to analyze sample audio data to detect the first acoustic event.