US Patent 9622013 Directional sound modification

A sound modification system is disclosed that includes one or more audio sensors coupled with a processing device and arranged to detect sounds within an environment, and one or more audio output devices coupled with the processing device. The processing device operates to generate an audio signal based on sounds detected from within one or more selected directions for sound modification within the environment, and to output the generated audio signal using the one or more audio output devices. The output generated audio signal combines with the detected sounds to produce a desired sound modification.