The equal loudness contours fordiscrete frequency bands of the complex sound.3. The rule by which loudness addsas the discrete frequency bands of thecomplex sound are added.If speciï¬cations 1, 2 and 3 can beestablished, then the loudness of the Fig. 3âThe frequency response characteristics of the octave band pass filters.
Ideally, you want the tip of the thermometer to be in the center of the roast. Remove the roast when the meat's internal temperature reaches 160 degrees F. A four-pound roast may take one-and-three-quarters of an hour to two hours to cook.Let the roast set for about 15 minutes after removing it from the oven and before carving. If the pork roast is done, the meat will be whitish, not pink. four-pound roast may take one-and-three-quarters of an hour to two hours to cook. Let the roast set for about 15 minutes after removing it from the oven and before carving. If the pork roast is done, the meat will be whitish, not pink.
It is not the time in the oven but the internal temperature of the roast that will determine if it is cooked properly. According to the USDA and Minnesota Pork Board, âPork is best when cooked to medium doneness â 160 degrees F. on a meat thermometer.tâs difficult to say. WIth a roast, you generally want to cook to an internal temperature, not a time. But, when you lay it out butterflied, itâs thinner and more of the meat is exposed to heat, so if you were to cook it at 350 degrees at a 1/2 hour/lb. a 6 lb roast would end up ruinously overdone.