Part 2 Flashcards
1
Q
How is sound created?
A
Force is applied to a sound source and the molecules compress when they travel and create waves of pressure
2
Q
What are the 4 properties of sound?
A
Intensity, frequency, phase, and spectrum/duration
3
Q
What is the decibel
A
It is a logarithmic unit used to meaure intensity to a reference pressure
4
Q
What are the types of decibels
A
dB SPL:measure threshold of pain and calibrates audiology equipment
dB HL: used for testing hearing and for audiograms
dB SL: 1% component of audiogram and used for speech audiometry.
4
Q
What is the normal hearing range in adults
A
-10 dB to 25 dB
5
Q
What is frequency
A
The speed of vibration of a sound wave
