103.252.201.21: Removed an "s"

2024-11-12T07:40:15Z

Removed an "s"

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{{Short description|Sound recording device that converts sounds into images}}
{{no footnotes|date=December 2021}}
The '''Phonodeik''' is a [[sound]] recording apparatus [[invent]]ed by [[Dayton Miller]] in 1908. The Phonodeik converts sound waves into visual images. The name was suggested by [[Edward Morley|Edward W. Morley]]. Before electronic oscilloscopes, this device was used for analyzing sound [[wave]]s. The Phonodeik can be modified to project sound waves on a screen for public demonstration.

==Description==

The Phonodeik used [[photograph]]ic material to record sound. A [[diaphragm (acoustics)|diaphragm]] receiver of thin glass is at the end of a resonator horn. Behind the diaphragm is a [[steel]] [[pulley]] [[spindle (tool)|spindle]] mounted in jeweled bearings with an attached [[mirror]] and oscillating tension spring. Wrapped on the pulley spindle are thin [[silk]] [[fiber]]s or [[platinum]] [[wire]] turning around the mirror with amplitude. The sound vibrates the diaphragm on the bottom and a light beam is reflected to the sensitive photographic paper (or a projection screen).

==See also==

* [[Oscilloscope]]
* [[Sonograph]]
* [[Phonautograph]]
* [[Kymograph]]

==External links and references==

* "''Lecture III -- Methods of recording and photographing sound waves -- [https://web.archive.org/web/20030621192009/http://www.srm.com/1916/lecture3phonodeik.html Phonodeik]''". The science of musical sounds.
* Hoekje, Peter L. and William Fickinger, "''[http://adsabs.harvard.edu/cgi-bin/nph-bib_query?2001ASAJ..115.2492H Acoustic teaching apparatus before 1929 at the Case School of Applied Science]''".
* Gilliam, L., and W. Lichtenwanger, "''[http://memory.loc.gov/ammem/dcmhtml/dmbio.html The Dayton C. Miller Flute Collection: A Checklist of the Instruments]''". Washington, D.C.: Library of Congress. 1961. [via American Memory]
* Greenslade, Jr., Thomas B., "''[http://physics.kenyon.edu/EarlyApparatus/Acoustics/Sonograph/Sonograph.html The Sonograph ]''". [http://physics.kenyon.edu/EarlyApparatus/index.html Instruments for Natural Philosophy], Kenyon College, Gambier, Ohio.
* "''[http://www.sapere.it/gr/ArticleViewServletOriginal?otid=GEDEA_fonodeik&orid=GEDEA_fonodeik&todo=LinkToFree fonodèik]''". Enciclopedia Generale. (Italian)
* Miller, Dayton, ''[http://vax.vmi.edu/MARION/AAD-1840 Sound Waves: Their Shape and Speed]''. 1937.
* Miller, Dayton. ''[http://www.srm.com/1916/ The Science of Musical Sounds]''. 1916.
* [http://cultureandcommunication.org/deadmedia/index.php/Phonodeik The Dead Media Archive's entry on the Phonodeik]
* Lindon W Bates. {{US Patent|1294861}}, Method of and apparatus for recording sounds.

[[Category:Laboratory equipment]]
[[Category:Sound recording technology]]

Phonodeik - Revision history

103.252.201.21: Removed an "s"