In digital audio data reduction technology, aptX (formerly apt-X) is a family of proprietary audio codec compression algorithms.
Oklahoma is the 20th-largest state in the United States, covering an area of 69,898 square miles (181,035 km 2), with 68,667 square miles (177847 km 2) of land and 1,281 square miles (3,188 km 2) of water.
Oklahoma has approximately 167,600 miles of rivers/streams.*. Oklahoma's longest river is the Beaver/North Canadian River (752 miles); the Red River is the second longest (570 miles).*. Oklahoma's largest lake in surface area is Eufaula (105,000 acres); Lake Texoma is second (88,000 acres). The state's largest lake in conservation storage is Texoma (2.6 million acre-feet of water); Eufaula is second (2.3 million acre-feet). Average annual lake evaporation in Oklahoma ranges from 48 inches in the extreme east to 65 inches in the southwest, numbers that far exceed the average yearly rainfall in those areas.