Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
|
Decibels
|
The magnitude or strength of sound is measured in decibels.
Decibels are on a ratio and relative scale. On a physical parameter that can be measured. |
|
|
Linear Scale
|
All units are the same size.
Each incremental change at one end is equal the incremental change at the other end of the scale. Represented graphically. |
|
|
Logarithimic Scale
|
Each unit on scale is larger than the preceding unit.
We perceive changes in sound intensity on a logarithmic scale. |
|
|
Geometric Progression
|
Sound does not change in a linear fashion.
|
|
|
Absolute Scale
|
0 point represents absence of what is being measured.
|
|
|
Relative Scale
|
No true zero point. Zero is arbitrarily chosen.
|
|
|
Ratio Scale
|
A measurement scale in which a certain distance along the scale means the same thing no matter where on the scale you are, and where "0" represents the absence of what is being measured.
|
