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File:A-major-triad-equal-temperament-compared-to-just-intonation-6-2008C.ogg

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A-major-triad-equal-temperament-compared-to-just-intonation-6-2008C.ogg (Ogg Vorbis sound file, length 33 s, 110 kbps, file size: 439 KB)

Summary

Description
English: Comparison of A major triad under equal temperament and just intonation.

8 seconds: A major triad, equal temperament (.25 seconds silence) 8 seconds: A major triad, just intonation (.25 seconds silence) 4 seconds: A major triad, equal temperament (click) 8 seconds: transition from equal temperament to just intonation (click) 4 seconds: A major triad, just intonation In the equal temperament triad, beats of 0.8 Hz (just under one per second) and 4.4 Hz can be heard. The representing the difference between the equal and just intonation of the 5th of the triad (329.6 Hz vs 330 Hz) and the 3rd of the triad (275 Hz vs 277.2 Hz). The beats sound at twice the frequency of the pitch difference, so a pitch difference of 0.4 Hz leads to a beat of 0.8 Hz and a pitch difference of 2.2 Hz leads to a beat rate of 4.4 Hz. In the just intonation triad, these beats are not present, resulting in a noticeably different sound quality.

A major triad with equal temperament: 220 Hz, 277.2 Hz, 329.6 Hz
A major triad with just intonation: 220 Hz, 275 Hz, 330 Hz
Sound used is a square waveform.
File created by Brent Hugh using Audacity software.
Date

29 June 2008 (original upload date)

(Original text: 29 June 2008)
Source Own work (Original text: I created this work entirely by myself.)
Author Brent Hugh

Licensing

Public domain This work has been released into the public domain by its author, Bhugh at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Bhugh grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

Transferred from en.wikipedia to Commons by Closedmouth.

The original description page was here. All following user names refer to en.wikipedia.
  • 2008-06-29 06:56 Bhugh 0×0× (449221 bytes) Created by Brent Hugh, released into public domain.
  • 2008-06-29 06:01 Bhugh 0×0× (340508 bytes) Comparison of A major triad under equal temperament and just intonation. 4 seconds: A major triad, equal temperament 4 seconds: A major triad, just intonation 4 seconds: A major triad, equal temperament 8 seconds: transition from equal temperament to jus
  • 2008-06-29 05:51 Bhugh 0×0× (450863 bytes) {{Information |Description= |Source=I created this work entirely by myself. |Date=29 June 2008 |Author=Brent Hugh |other_versions= }}

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29 June 2008

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4db7284c71753203e9cb5e7ba3fbf63203abf614

449,221 byte

32.6666439909297 second

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Date/TimeThumbnailDimensionsUserComment
current13:42, 23 March 200933 s (439 KB)Closedmouth{{Information |Description={{en|Comparison of A major triad under equal temperament and just intonation. 8 seconds: A major triad, equal temperament (.25 seconds silence) 8 seconds: A major triad, just intonation (.25 seconds silence) 4 seconds: A major

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