Sound And Ear Flashcards
1
Q
What does the ear respond to?
A
Rapid pressure fluctuations of air
2
Q
Frequency range of human hearing?
A
20Hz to 20kHz
3
Q
How is sound intensity usually expressed?
A
Decibels on a log scale
4
Q
What is the equation relating decibel on a log scale?
A
dB SPL = 20 logP/Po
5
Q
Typical sound level for a normal conversation?
A
70 dB SPL
