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sound recording
(Encyclopedia)sound recording, process of converting the acoustic energy of sound into some form in which it can be permanently stored and reproduced at any time. In 1855 the inventor Leon Scott constructed a devic...echo sounder
(Encyclopedia)echo sounder, an older instrumentation system for indirectly determining ocean floor depth. Echo sounding is based on the principle that water is an excellent medium for the transmission of sound wave...decibel
(Encyclopedia)decibel dĕsˈəbĕlˌ, –bəl [key], abbr. dB, unit used to measure the loudness of sound. It is one tenth of a bel (named for A. G. Bell), but the larger unit is rarely used. The decibel is a measu...Sound, the
(Encyclopedia)Sound, the: see Øresund, Denmark and Sweden. ...sound barrier
(Encyclopedia)sound barrier: see aerodynamics. ...Plymouth Sound
(Encyclopedia)Plymouth Sound, deep inlet of the English Channel, Devon and Cornwall, SW England. It is a famous roadstead and forms a bay c.3 mi (5 km) wide. It receives the Tamar River through the Hamoaze estuary ...Scoresby Sound
(Encyclopedia)Scoresby Sound, arm of the Greenland Sea, E Greenland. It has numerous fjords that branch out generally westward to the ice cap. Some of the branches extend more than 180 mi (290 km) inland. At its mo...Parry Sound
(Encyclopedia)Parry Sound, town (1991 pop. 6,125), S Ont., Canada, on Parry Sound, an inlet of Georgian Bay of Lake Huron. It is an active port and the center of a popular vacation area. ...Lancaster Sound
(Encyclopedia)Lancaster Sound, arm of Baffin Bay, c.200 mi (320 km) long and 40 mi (60 km) wide, Nunavut Territory, Canada. It extends west between Devon and Baffin islands and is part of the shortest water route ...Pamlico Sound
(Encyclopedia)Pamlico Sound pămˈlĭkō [key], lagoon, 80 mi (129 km) long and 15 to 30 mi (24–48 km) wide, E N.C., separated from the Atlantic Ocean by a row of low, sandy barrier islands; largest lagoon along ...Browse by Subject
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