1Electronics and Communications Department, El-Azhar University
2Electronics and Communications Department, National Center for Housing& Building Research
Online published on 9 March, 2017.
A proposed model is set up for a Noise-cancelling of air conditioning by means of active noise control. Essentially, this involves using a microphone, placed near the fan, and an electronic circuitry which generates an "anti-noise" sound wave with the opposite polarity of the sound wave of the microphone. This results in destructive interference, which cancels out the noise within the enclosed volume of the fan. The best sat is factory result was obtained at 2000 Hz equal 11 dB.
Active noise, Noise cancelling, Electronic system, Sound pressure level
