Check Your Understanding
Q: Bass guitars are more difficult to absorb than lead guitars.
A: True. Bass guitars emit low bass tones. The sound waves are longer and flatter, and able to pass through surfaces or absorption products over less distance and time. Lead guitars can be higher pitched, with taller frequency waves that forced to travel over greater distance and time, making them easier to contain and absorb.
Q: Bats are blind and rely on acute hearing. They can detect sounds up to 120,000 Hertz while humans can detect sounds from 20 to 20,000 Hertz. Bats can hear 6X higher pitched sounds than humans.
A: True. Hertz are not algorithmic like the decibel scale. 120,000 Hertz indicates 120,000 cycles per second, while 20,000 Hertz indicates 20,000 cycles per second. Bats can detect sounds 6 times the frequency over humans.
Q: It is a greater challenge to isolate a machine with low bass frequency noise than a machine with high pitch sound.
A: True. Low bass tones have longer, flatter sound waves that make it more difficult to absorb, reflect, or block. This means it's a much easier task to soundproof a high pitched machine than one emitting a low bass tone.