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I observed that the coded algorithm for active noise cancellation is not able to cancel some of the signals like a human voice. Is there any solution for this? Can we really cancel non-periodic signals at least at the software level correctly? What changes do I need to make in the code?

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Thats wideband and nonstationary interference cancellation. Using LMS adaptive filter and different adaptive filtering structures, you can also eliminate nonstationary and/or wideband interferences too. Not always possible though.

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  • $\begingroup$ Can I use the same transverse structures which are used in general? Suppose if I give my voice signal as input, can I get exact 180 out of phase signal, so that when they mix with each other, destructive interference will happen. $\endgroup$ – Ramakrishna Feb 3 at 6:32
  • $\begingroup$ yes same structures can be used $\endgroup$ – Fat32 Feb 3 at 9:51

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