When someone returns from a heavy metal concert they don’t usually comment loudly about how many Watts per meter squared they experienced. Decibels might make sense. People tend to know that 120 …
Sound Level Terminology
Absorption Coefficient- Denoted by alpha (units of inverse meters) and "a" (dB/m). This constant measures the sound-absorbing ability of a material. The values go from about 0.01 for marble slate to …