Sound and Science

First experimental Kunstkopf

First Berlin Kunstkopf mounted on transport case, circa 1969. From left: Ralf Kürer, holding the front of a KU80 and the front of a preproduction model, Henning  [...]

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Advertisment: “The Delta Head”

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Measuring ear signals

Measuring ear signals with a probe microphone, circa 1972.

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The “Originalkopf”

The “Originalkopf” microphone array, circa 1975.

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Kunstkopf

Kunstkopf by Peter Laws and Hans-Joachim Platte with Originalkopf microphone array, circa 1976.

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Patentanmeldung in USA

Patentanmeldung in USA, 1971: Verfahren zur hörrichtigen Aufnahme und Wiedergabe von Schallereignissen und Vorrichtung zu seiner Durchführung.

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Offenlegungsschrift 1927 401

Offenlegungsschrift 1927 401 des deutschen Patentamts, 1970: Verfahren zur hörrichtigen Aufnahme und Wiedergabe von Schallereignissen und Vorrichtung zu seiner Durchführung.  [...]

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Offenlegungsschrift 2023 377

Offenlegungsschrift 2023 377 des deutschen Patentamts, 1971: Verfahren zur räumlichen Wiedergabe von Schallsignalen mittels Lautsprecher und Vorrichtung zu seiner Durchführung.

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Advertising for Western Electric non-directional mike

Further description of the microphone was done by the Harvard University. Link: http://waywiser.fas.harvard.edu/objects/17456/western-electric-model-630a-eightball-microphone;jsessionid=9F78F2805EECC90D33A12AD9759C647B?ctx=884dcf36-8145-42e8-b6cd-b104b0342d1d&idx=4  [...]

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Pierre Schaeffer

Son of a musician and a voice teacher, Pierre Schaeffer received a Catholic education, practiced theater as a boy scout, and learned to play the cello  [...]

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The Webster Chicago wire recorder

This set of pictures shows the Webster Chicago wire recorder (model 80-1) and related accessories, including a microphone, a collection of reels from different sources, and  [...]

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Der sprechende Flammenbogen und die Telephonie ohne Draht vermittelst Lichtstrahlen

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Der sprechende elektrische Flammenbogen und die Versuche, denselben praktisch zu verwerten

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Parabolic microphone

The parabolic microphone uses a parabolic reflector to collect and focus sound waves onto a receiver, ensuring great directional sensitivity along the axis to which the  [...]

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Random Noise Generator Type 1390-B

This picture shows the Random Noise Generator Type 1390-B produced by the General Radio Company in West Concord, MA. A random noise generator is a device  [...]

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Sound Waves. International Telephone Journal (1900-1910)

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The Bell System Technical Journal (1922-1983)

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Rotfuchs-Protokoll + Korsaks (ab 18.4.64), 23.09.1963 – 24.04.1967

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Polarfüchse-Protokoll kleine Freianlage, 08.11.1956-01.04.1960

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Rotfuchs-Protokoll große + kleine Freianlage, 04.03.1959 – 21.09.1963 + Polarfuchs, 21.04.1960-05.09.1961

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Rotfuchs-Protokoll große Freianlage (+ kleine Freianlage), 12.07.1957 – 03.03.1959

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XIV. Fuchs-Protokoll, große Freianlage, 28.07.1956 – 11.07.1957

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XIII. Fuchs-Protokoll, 21.01.1956 – 27.07.1956

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XII. Fuchs-Protokoll Freianlage, 28.02.55 – 20.01.1956

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XI. Füchse Tagesprotokolle, 06.05.1955 – 17.08.1955

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X. Fuchs-Protokoll, 23.12.54 – 05.05.1955

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IX. Fuchs-Protokoll, 13.05.1954 – 22.12.1954

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VIII. Fuchs-Protokoll, 18.12.1953 – 12.05.1954

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VII. Fuchs-Protokoll, 31.08.1953 – 17.12.1953

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VI. Fuchs-Protokoll, 22.06.53 – 30.08.1953

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V. Fuchs-Protokoll (II), 11.03.53 – 22.06.1953

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IV: Fuchs-Protokoll, 01.01.1953 – 10.03.1953

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The Bell System Technical Journal

The Bell System Technical Journal was a periodical intended for sharing the scientific and engineering developments of the Bell System. It was published between 1922 and 1983. Collecting  [...]

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Bell Telephone News

Bell Telephone News was the regional telephone magazine published by The Bell Telephone Company of Chicago.

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Peter Paul Kellogg

Peter Paul Kellogg was professor of ornithology and biological acoustics at Cornell University. Together with Arthur Allen and Albert Brand, he developed new techniques and instruments  [...]

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