2007-01-01 01:30:03 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Interference but mostly attenuation of first and second fundamental frequencies.
A noise is a complex sound that consists of single or many frequencies. The key to understanding is in realization that a complex waveform is a superposition of many simple sine waves of varied magnitudes and frequencies. Such is the complex waveform of noise coming say from your typical vehicle exhaust. The side branch resonator is tuned to reduce the amplitude of the first few (usually the first two components).
I hope it helps
2007-01-01 01:52:24 · answer #1 · answered by Edward 7 · 0⤊ 0⤋
This is a guess.
Introduced before amplification and at the noise frequency the inputted noise is changed to zero before being passed to the amplifier.
2007-01-01 02:01:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
to be honest i know nothing about this but isnt sound as we no it only a vibration resonating on the air around us ? and interperated as a "noise as we know it?" like i said i havent a clue but surely there is no sound in a vacum ... is there? i hear ( pardon the pu) that there is no sound in space
2007-01-04 10:42:26 · answer #3 · answered by fragmaster3sum 2 · 0⤊ 0⤋