Methods and systems for broad-band active noise reduction

A speaker system configured for broad-band reduction of noise in a target space, the speaker system comprising:

• an enclosure;
• a speaker, comprising a front side and a rear side, wherein the front side is configured to generate an audio reducing sound in the target space, wherein the rear side is coupled to and extends into the enclosure, and wherein the rear side and the enclosure define a first space;
• and
• a resonator, comprising a second space in fluid communication with the first space, wherein the first space and the second space are fully enclosed from an outside environment, and wherein the resonator is specifically configured to reduce amplitude of the audio reducing sound in a first frequency range.

A method for broad-band reduction of noise in a target space, the method comprising:

• generating, using a feedback microphone, a microphone signal;
• transmitting the microphone signal to a system controller;
• generating, with the system controller, a speaker signal based on the microphone signal;
• transmitting the speaker signal to a speaker, wherein the speaker comprises a front side and a rear side, wherein the front side is configured to generate an audio reducing sound in the target space based on the speaker signal, wherein the rear side is coupled to and extends into an enclosure, and wherein the rear side and the enclosure define a first space;
• generating an audio reducing sound in the target space, wherein the audio reducing sound is generated by the speaker based on the speaker signal;
• and
• reducing amplitude of unwanted amplification in a first frequency range using a resonator, the resonator comprising a second space in fluid communication with the first space, wherein the first space and the second space are fully enclosed from the target space.