The fundamentals of active noise cancellation and how it varies from passive treatment
Whenever I am asked what I do in a social environment, I give many blank looks. This was always followed by a long silence. Whenever any layman hear the word “noise cancellation”, they reminisce their past experience to assist them decide what they should do, that usually implies insulation and they start looking for a noise cancelling wall . In the past few years, active noise cancellation has become more common due to the incredible efforts of the branded companies in creating soundproof door blanket . There is still a vital amount of confusion and how active noise cancellation is different from passive noise cancellation products like insulation. The purpose of this document is to try and describe those differences in a way that is both understandable and accessible to all. The Fundamentals In simple words, passive noise cancellation treatments are all about absorption and deflection. They are a barrier between the noise source and the observer. Passive treatments are lik...