milliseconds/decimal placement

[thunderdome2001]

I'm referencing Absorption Coefficients from a Acoustic Techniques book. Numbers given display such as 0.03 0.12 0.15 0.27 0.37 0.42 and even (0.015). Do these numbers translate/convert to 3ms 12ms 15ms 27ms 37 ms 42ms and even (""""")? Thanks, Rob

[dpd]

1 millisecond = .001 second

Years ago, Formula 1 broadcaster David Hobbs kept confusing hundredths (.01) of a second with thousandths (.001) of a second - I kept complaining to Bob Varsha that David needed to go back to math class....

[michaelhoddy]

Absorption coefficients do not refer to milliseconds at all. Rather, it's a decimal/percentage system, where a coefficient of 0 means that no sound is absorbed by a given surface (and all of it is reflected) at a given frequency center. A coefficient of 1 means that 100 percent of the sound at the given frequency center is absorbed.

So, a coefficient of .5 would mean that 50 percent is absorbed, and so on.