System and method for providing a quiet zone
First Claim
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1. An audio system comprising:
- at least one module operable to, at least;
filter an audio signal to pass a frequency band of sound to be counteracted, wherein the frequency band is characterized by at least a lower bound;
identify an unwanted sound at a location, by, at least in part, operating to receive the unwanted sound using at least one sound sensor positioned at a distance away from the location at least one fourth of a wavelength of the lower bound of the frequency band of sound to be counteracted;
identify a loudspeaker to utilize to quiet the unwanted sound;
determine a counteracting sound that, when output by the loudspeaker, will quiet the unwanted sound at the location; and
output the counteracting sound at the loudspeaker.
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Abstract
A system and method for quieting unwanted sound. As a non-limiting example, various aspects of this disclosure provide a system and method, for example implemented in a premises-based or home audio system, for quieting unwanted sound at a particular location.
12 Citations
13 Claims
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1. An audio system comprising:
at least one module operable to, at least; filter an audio signal to pass a frequency band of sound to be counteracted, wherein the frequency band is characterized by at least a lower bound; identify an unwanted sound at a location, by, at least in part, operating to receive the unwanted sound using at least one sound sensor positioned at a distance away from the location at least one fourth of a wavelength of the lower bound of the frequency band of sound to be counteracted; identify a loudspeaker to utilize to quiet the unwanted sound; determine a counteracting sound that, when output by the loudspeaker, will quiet the unwanted sound at the location; and output the counteracting sound at the loudspeaker. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An audio system comprising:
at least one module operable to, at least; identify an unwanted sound to counteract; analyze the identified unwanted sound by, at least in part, analyzing a first amount of frequency content that the identified unwanted sound has in a first frequency band and analyzing a second amount of frequency content that the identified unwanted sound has in a second frequency band; select, based at least in part on the analysis of the identified unwanted sound, between a plurality of different types of countermeasure strategies for counteracting the unwanted sound; and implement the selected strategy, wherein the plurality of different types of countermeasure strategies comprises; a first countermeasure strategy comprising performing sound cancellation; and a second countermeasure strategy comprising performing sound masking. - View Dependent Claims (8, 9, 10, 11, 12, 13)
Specification