Active noise cancellation

An active noise cancellation (ANC) method, comprising:

• receiving, in one or more processors, reference sensor signals related to a noise source from each of at least one reference sensor situated in relation to a noise source;
• generating, by the one or more processors, an anti-noise waveform for the noise source based on the received reference sensor signals;
• transmitting, by the one or more processors to one or more speakers to be broadcast from one or more speakers situated in relation to a quiet zone, the generated anti-noise waveform;
• receiving, by the one or more processors, at least one error signal ep, related to residual noise, from each of one or more error microphone array unit situated in relation to the quiet zone, each error microphone array unit comprising a plurality of error microphones;
• and
• adapting, by the one or more processors, the anti-noise waveform based on the error signal to cancel noise from the noise source in the quiet zone.

A non-transitory computer-readable medium storing computer executable instructions, the instructions when executed by one or more processors in a network is operative to:

• receive reference sensor signals related to a noise source from each of at least one reference sensor situated in relation to a noise source;
• generate, by the one or more processors, anti-noise for the noise source based on the received reference sensor signals;
• transmit, by the one or more processors to one or more speakers to be broadcast from one or more speakers situated in relation to a quiet zone, the generated anti-noise;
• receive, by the one or more processors, at least one error signal ep, related to residual noise, from each of one or more error microphone array unit situated in relation to the quiet zone, each error microphone array unit comprising a plurality of error microphones;
• and
• adapt, by the one or more processors, the anti-noise based on the error signal to cancel noise from the noise source in the quiet zone.

A vehicle, comprising:

• at least one reference sensor;
• at least one speaker;
• at least one error microphone array unit, each error microphone array unit comprising at least two error microphones;
• a memory storing instructions therein;
• and
• one or more processors:
• communicatively coupled with i) the memory, ii) each reference sensor, iii) each speaker, and iv) each error microphone array unit;
• and
• configured to execute the instructions to:
• receive reference sensor signals related to a noise source from each reference sensor situated in relation to the noise source;
• generate anti-noise for the noise source based on the received reference sensor signals;
• transmit the generated anti-noise from the speaker situated in relation to a quiet zone;
• receive at least one error signal ep, related to residual noise, from each error microphone array unit situated in relation to the quiet zone;
• and
• adapt the anti-noise based on the error signal to cancel noise from the noise source in the quiet zone.