This is a file from the Wikimedia Commons

File:Phonogene.jpg

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Phonogene.jpg(312 × 406 pixels, file size: 20 KB, MIME type: image/jpeg)
Description
English: The chromatic phonogene.

The phonogene was a machine capable of modifying sound structure significantly and it provided composers with a means to adapt sound to meet specific compositional contexts. The initial phonogenes were manufactured in 1953 by two subcontractors: the chromatic phonogene by a company called Tolana, and the sliding version by the SAREG Company (Poullin 1999). A third version was developed later at ORTF.

  • Chromatic: The chromatic phonogene was controlled through a one-octave keyboard. Multiple capstans of differing diameters vary the tape speed over a single stationary magnetic tape head. A tape loop was put into the machine, and when a key was played, it would act on an individual pinch roller / capstan arrangement and the tape played at the specified speed. The machine worked with short sounds only (Poullin 1999).
  • Sliding: The sliding phonogene (also called continuous variation phonogene) provided continuous variation of tape speed using a control rod (Poullin 1999). The range allowed the motor to arrive at almost a stop position, always through a continuous variation. It was basically a normal tape recorder but with the ability to control its speed, so it could modify any length of tape. One of the earliest examples of its use can by heard in Voile d’Orphee by Pierre Henry (1953), where a lengthy glissando is used to symbolise the removal of Orpheus's veil as he enters hell.
  • Universal: A final version called the universal phonogene was completed in 1963. The device's main ability was that it enabled the dissociation of pitch variation from time variation. This was the starting point for methods that would later become widely available using digital technology, for instance harmonising (transposing sound without modifying duration) and time stretching (modifying duration without pitch modification). This was obtained through a rotating magnetic head called the Springer temporal regulator, an ancestor of the rotating heads used in video machines.
Date
Source Own work (Original text: I created this work entirely by myself.)
Author Semitransgenic (talk)

Licensing[edit]

Semitransgenic at English Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Semitransgenic at English Wikipedia
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

Original upload log[edit]

Transferred from en.wikipedia to Commons by Clusternote using CommonsHelper.

The original description page was here. All following user names refer to en.wikipedia.
  • 2008-10-21 21:28 Semitransgenic 312×406× (20762 bytes) {{Information |Description= phonogene |Source=I created this work entirely by myself. |Date= 21-10-2008 |Author=~~~ |other_versions= none }}

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current03:00, 13 March 2010Thumbnail for version as of 03:00, 13 March 2010312 × 406 (20 KB)File Upload Bot (Magnus Manske) {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|phonogene}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]; transferred to Commons by
The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file: