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Noise reduction is the technique involved in extraction of the desired information from a signal.The received signal is usually a mixture of information and noise. It is important to reduce the attenuation caused by random noise, since it produces the errors in information and lowers quality of the signal. One of the most challenging problems in…
Code that implements the Least Mean Squares algorithm on a Teensy 4.0 with the corresponding audio shield to create Active Noise Cancellation in 1 dimension. A prototype was built using the Teensy device, 2 microphones, 1 speaker and a cylindrical apparatus. The prototype was able to reduce the perceived sound intensity from a constant 500 Hz no…