The amount of absorption depends on the frequency of the sound. A high frequency sound has many cycles in a second, and the particles in the medium are therefore vibrating very rapidly . Just as when you rub your hands together very rapidly, this produces more heat than if you rub your hands together slowly.
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In general, as sounds of the same volume pass though a wall, the low bass frequencies will penetrate the wall more easily than the high frequencies . Low frequency sounds lose less energy as they pass through a solid object.
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One advantage of lower frequencies is that the signals have better penetration, meaning they pass through objects such as walls with less attenuation . This effect results in better in-building penetration.5 Mar 2012
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The lower the frequency, the fewer the oscillations . High frequencies produce more oscillations. The units of frequency are called hertz (Hz). Humans with normal hearing can hear sounds between 20 Hz and 20,000 Hz.
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A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.1 Kas 2012
Read moreDo high frequency waves penetrate better?
A higher frequency will have a shorter wavelength. … Smaller wavelengths are more easily reflected or refracted in the superficial tissues than longer wavelengths. As wavelength is increased (or frequency decreased) the ultrasound will penetrate deeper .7 Eyl 2021
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