Elements of acoustics Flashcards
1
Q
What formula is used to predict the transmission loss of single-layer, impermeable materials?
A
Mass law
2
Q
What is the Sound Transmission Class (STC) range for ADEQUATE privacy
A
40 - 55
3
Q
What is the Sound Transmission Class (STC) range for SOME privacy, voices can be heard
A
20 - 40
4
Q
What is the Sound Transmission Class (STC) range for COMPLETE privacy
A
55 - 65
5
Q
The transmission of sound resulting from impacts, footfalls, is quantified by
A
Impact Insulation Class (IIC)
6
Q
What is the effect when the reflected sound is withing the integration interval?
A
An increase in loudness
7
Q
Which device is used to measure areas of high and low energy distribution?
A
A spectrum analyzer
