Some taxes are inadvertently hidden, but others are consciously designed that way to disguise the cost of government. Itâs easy to see why: the total U.S. tax burden is equal to 56 percent of annual personal consumption spending.
Thus, the volume is proportional to the amplitude of the sound wave. The frequency of a sound wave is perceived as pitch. Humans can detect pitches within the acoustic range of 20 to 20,000 Hz, but we can't detect ultrasound or infrasound.
Best Answer: Hz = Hertz (measure of sound frequency) For example, Middle A on a piano is at 440Hz Low E on a 4 string bass guitar is at 41Hz Your stereo splits the audio track into a low-frequency part, and a high-frequency part.