Bell Telephone Laboratories
The science of sound [sound recording] / produced by the Bell Telephone Laboratories, Inc.
Program notes (12 pages) inserted in container. Track information: 101. How we hear; 102. Frequency; 103. Pitch; 104. Intensity; 105. The doppler effect; 201. Echo and reverberation; 202. Delay distortion; 203. Fundamentals and overtones; 204. Quality; 205. Filtered music and speech.
In 1925 Western Electric Research Laboratories and part of the engineering department of the American Telephone & Telegraph company (AT&T) were consolidated to form Bell Telephone Laboratories, Inc. The ownership of Bell Laboratories was evenly split between AT&T and the Western Electric Company, and its principal work was to design and support the equipment that Western Electric built for Bell System operating companies, including telephone exchange switches. A few workers were assigned to basic research, and this attracted much attention, especially since they produced several Nobel Prize winners.
Music -- Acoustics and physics.
Phonograph records. aat
AIP-ICOS
Smithsonian Institution. Center for Folklife and Cultural Heritage. Ralph Rinzler Folklife Archives and Collections. 600 Maryland Ave SW, Suite 2001, Washington, DC 20560, USA