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).
Hawaii -- also known as the Big Island -- is not only the largest of the Hawaiian islands, it is also the largest island in the United States. The Big Island is 4,028 square miles and is the third most visited by tourists each year. When visiting the Big Island, you'll want to see the Maunaloa volcanoes, Kau desert, Puna Fern Forest, Hawaii Volcanoes National Park and Kealakekua Bay. Maui is 727 square miles, making it the second largest island.