The original aptX algorithm was developed in the 1980s by Dr. Stephen Smyth as part of his Ph.D research at Queen's University Belfast School of Electronics, Electrical Engineering and Computer Science; its design is based on time domain ADPCM principles and eschews psychoacoustic auditory masking techniques.
Along with the rest of the Hawaiian Islands, Oahu is one of the largest and northernmost islands of Polynesia. In the greatest dimension, this volcanic island is 44 miles (71 km) long and 30 miles (48 km) across. The length of the shoreline is 227 miles (365 km).
The Hawaiian Islands cover 6,459 square miles. Hawaii is ranked as the 47th largest of the 50 states ahead of Connecticut, Delaware, and Rhode Island.ohala is on the northern side of the island. Hualalai is in the west. Mauna Kea and Mauna Loa are toward the center of the island. Kilauea is located on the eastern side of Mauna Loa. Mauna Kea, at 13,796 feet above sea level, is the highest point in the state.