Adaptive beam cancellation

A system comprising:

• at least one processor;
• and
• memory including instructions operable to be executed by the at least one processor to cause the system to:
• receive microphone audio data associated with a microphone array of a device;
• generate directional audio data using the microphone audio data, the directional audio data comprising:
• first audio data corresponding to a first direction relative to the device, and
• second audio data corresponding to a second direction relative to the device, the second direction different from the first direction;
• determine, using the second audio data and a first plurality of filter coefficient values associated with a first adaptive filter, first reference data;
• determine first error data using the first reference data and the first audio data;
• determine a first range of values associated with the microphone audio data and a first time window;
• determine, using the first range of values and the microphone audio data, a first step-size value of the first adaptive filter, wherein the first step-size value represents a rate at which the first adaptive filter updates filter coefficients over time;
• and
• determine, using the first error data, the first step-size value, the second audio data, and the first plurality of filter coefficient values, a second plurality of filter coefficient values associated with the first adaptive filter.