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..
His first ex-wife and second wife overall, Diane Sterling (Melinda McGraw), married FBI Senior Special Agent Tobias Fornell (Joe Spano). As she did with Gibbs, Diane drained Fornell's bank account upon leaving him. Fornell and Diane have a daughter, Emily, forcing him to interact with her.