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The subfield of electrical engineering that focusses on analysing, modifying, and synthesizing signals such as sound, images, and scientific measurements.

2 votes

Why does a wall act as a low-pass filter?

Any type of force waveform f(t) applied to the wall surface can be represented by the sum (integral if f(t) is not a periodic function) of sinusoidal vibration forces with different frequencies. Sound …
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