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Merge from Standard test tone following unopposed 2014 merge proposal which seems to be reasonable; see Talk:Pure tone#Merge, noting that other parts of the complex merge were opposed |
Adding short description: "Pure audio tone at stable frequency and volume" |
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{{Short description|Pure audio tone at stable frequency and volume}}
A '''reference tone''' is a [[pure tone]] corresponding to a known frequency, and produced at a stable [[sound pressure level]] (volume), usually by specialized equipment.
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For standardized test signal levels and frequencies, see [[MIL-STD-188]]-100 for [[United States Department of Defense]] (DOD) use, and the [[Code of Federal Regulations]] Title 47, [[part 68]] for other Government agencies.
==References==
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==External links==
*[http://www.freesound.org/packsViewSingle.php?id=2103 Downloadable reference tones], from [[The Freesound Project
[[Category:Audio engineering]]
[[Category:Music production]]
[[Category:Telecommunications standards]]
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