Quiz
Questions for Period 1
1What unit of measure is used to describe frequency?
2Define a tone.
3Sound _______ (power or pressure) is what our ears hear and is influenced by the surroundings.
Questions for Period 2
4Which of these two
5Which of the above mentioned descriptors is better for describing sound in an office space or classroom?
6What is the NC rating of a space with the following
octave | center | measured |
band | frequency | sound pressure |
| (Hz) | (dB ref 20 µPa) |
|
|
|
1 | 63 | 48 |
|
|
|
2 | 125 | 47 |
|
|
|
3 | 250 | 45 |
|
|
|
4 | 500 | 39 |
|
|
|
5 | 1,000 | 35 |
|
|
|
6 | 2,000 | 27 |
|
|
|
7 | 4,000 | 19 |
|
|
|
8 | 8,000 | 14 |
|
|
|
68 |
|
