North American Time Capsule
Encyclopedia
North American Time Capsule is a 1967 composition by American experimental composer Alvin Lucier
. The piece was composed at the invitation of Sylvania Applied Research Laboratories, which offered Lucier the use of a prototype vocoder
. The vocal content of the piece was provided by the Brandeis University
Chamber Chorus, of which Lucier was then the director. The score calls for members of the Chorus to “prepare a plan of activity using speech, singing, musical instruments, or any other sound producing means that might describe—to beings very far from the earth’s environment either in space or in time—the physical, social, spiritual, or any other situation in which we find ourselves at the present time.” Along with Sylvania engineer Calvin Howard, Lucier used the vocoder to isolate and manipulate elements of speech in real time. Eight separate tracks were recorded and subsequently mixed by Lucier. The piece is available on Vespers and Other Early Works (New World Records).
Alvin Lucier
Alvin Lucier is an American composer of experimental music and sound installations that explore acoustic phenomena and auditory perception. A long-time music professor at Wesleyan University, Lucier was a member of the influential Sonic Arts Union, which included Robert Ashley, David Behrman, and...
. The piece was composed at the invitation of Sylvania Applied Research Laboratories, which offered Lucier the use of a prototype vocoder
Vocoder
A vocoder is an analysis/synthesis system, mostly used for speech. In the encoder, the input is passed through a multiband filter, each band is passed through an envelope follower, and the control signals from the envelope followers are communicated to the decoder...
. The vocal content of the piece was provided by the Brandeis University
Brandeis University
Brandeis University is an American private research university with a liberal arts focus. It is located in the southwestern corner of Waltham, Massachusetts, nine miles west of Boston. The University has an enrollment of approximately 3,200 undergraduate and 2,100 graduate students. In 2011, it...
Chamber Chorus, of which Lucier was then the director. The score calls for members of the Chorus to “prepare a plan of activity using speech, singing, musical instruments, or any other sound producing means that might describe—to beings very far from the earth’s environment either in space or in time—the physical, social, spiritual, or any other situation in which we find ourselves at the present time.” Along with Sylvania engineer Calvin Howard, Lucier used the vocoder to isolate and manipulate elements of speech in real time. Eight separate tracks were recorded and subsequently mixed by Lucier. The piece is available on Vespers and Other Early Works (New World Records).