Device, system and method of noise control

A method of active noise control, the method comprising:

• determining a noise control pattern to control acoustic noise within a predefined noise-control zone, based on a plurality of noise inputs representing acoustic noise at a plurality of predefined noise sensing locations, which are defined with respect to said predefined noise-control zone, and acoustic residual-noise at a plurality of predefined residual-noise sensing locations, which are located within said predefined noise-control zone, wherein determining the noise control pattern comprises extracting from the plurality of noise inputs a plurality of disjoint reference acoustic patterns, which are statistically independent, selecting at least one disjoint reference acoustic pattern from said plurality of disjoint reference acoustic patterns based on one or more predefined acoustic pattern attributes of at least one predefined noise pattern to be controlled within said noise-control zone, and determining said noise control pattern based on the at least one disjoint reference acoustic pattern selected from the plurality of disjoint reference acoustic patterns;
• and
• outputting said noise control pattern to at least one acoustic transducer.

A product including a non-transitory storage medium having stored thereon instructions that, when executed by a machine, result in:

• determining a noise control pattern to control acoustic noise within a predefined noise-control zone, based on a plurality of noise inputs representing acoustic noise at a plurality of predefined noise sensing locations, which are defined with respect to said predefined noise-control zone, and acoustic residual-noise at a plurality of predefined residual-noise sensing locations, which are located within said predefined noise-control zone, wherein determining the noise control pattern comprises extracting from the plurality of noise inputs a plurality of disjoint reference acoustic patterns, which are statistically independent, selecting at least one disjoint reference acoustic pattern from said plurality of disjoint reference acoustic patterns based on one or more predefined acoustic pattern attributes of at least one predefined noise pattern to be controlled within said noise-control zone, and determining said noise control pattern based on the at least one disjoint reference acoustic pattern selected from the plurality of disjoint reference acoustic patterns;
• and
• outputting said noise control pattern to at least one acoustic transducer.