![]() The process is reversed in sound reproduction, and the variations stored on the medium are transformed back into sound waves.Īcoustic analog recording is achieved by a microphone diaphragm that senses changes in atmospheric pressure caused by acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as a phonograph record (in which a stylus cuts grooves on a record). Sound recording is the transcription of invisible vibrations in air onto a storage medium such as a phonograph disc. The two main classes of sound recording technology are analog recording and digital recording. Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. For the audio recording program computer software, see Windows Voice Recorder.įrances Densmore and Blackfoot chief Mountain Chief a recording project of the Bureau of American Ethnology (1916).
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