The human ear responds more to frequencies between 500 Hz and 8 kHz and is less sensitive to very low-pitch or high-pitch noises. The frequency weightings used in sound level meters are often related to the response of the human ear, to ensure that the meter is measuring pretty much what you actually hear. It is extremely important that sound level measurements are made using the correct frequency weighting - usually A-weighting.
'Bonanza,' 'Trapper John, M.D.' star Pernell Roberts dies. Pernell Roberts portrayed Dr. John McIntyre on Trapper John, M.D..
She was made a regular in Scrubs ' Season 9. In March 2009, Coupe was cast as Callie in the ABC pilot, No Heroics, an adaptation of the UK series of the same name. In 2012, Coupe played the female lead and love interest to Daniel Henney in the independent film Shanghai Calling, filmed in Shanghai, China.