Patent ID: 11900909
Assignee: SOUND UNITED, LLC.
Field: Other consumer goods (Other fields)
Classification: CPC G  H | IPC G  H

Claim 7:
8. An audio system comprising:
a plurality of microphones configured to receive a plurality of remote audio signals, wherein:
the plurality of remote audio signals comprise an unwanted sound emanating from a particular location,
the unwanted sound comprises frequencies in a predetermined frequency band,
each of the plurality of microphones is positioned at least one fourth of a particular wavelength away from the particular location, and
the particular wavelength corresponds to a lowest frequency of the predetermined frequency band;

a processor configured to:
filter the plurality of remote audio signals to pass the predetermined frequency band,
determine a relationship between a local audio signal and the filtered remote audio signals, and
generate, according to the local audio signal and the relationship, a cancellation signal; and

a loudspeaker configured to output the cancellation signal to counteract, at least in part, the unwanted sound.