Construct · 1 fields · 2 citations

equal-loudness contour: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct in psychoacoustics Nearest construct by meaning·not indexed
equal-loudnesscontour1 CONSTRUCTEqual-loudness contourFLETCHER & MUNSON · 1933

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Psychoacoustics

a curve tracing, across frequency, the sound-pressure levels a listener judges equally loud.

An equal-loudness contour traces, across frequency, the sound-pressure levels that a listener judges equally loud, revealing that the ear is far less sensitive to low and very high frequencies than to the midrange, with the disparity greatest at low levels. Fletcher and Munson's 1933 Loudness, its definition, measurement and calculation produced the first widely used family of these curves, and Robinson and Dadson's 1956 A re-determination of the equal-loudness relations for pure tones refined them into the basis of later international standards. Loudness level along a contour is labelled in phons, set equal to the decibel level at one kilohertz. The referent is the frequency dependence of perceived loudness, measured by matching the loudness of test tones to a reference.[1][2]

Unit
Sound-pressure level versus frequency at constant loudness, labelled in phons
Recovery means
Not applicable
Measured by
Mapped by loudness-matching experiments, adjusting each tone's level to match a one-kilohertz reference

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Nearby constructs

critical band1 fields · 2 citationsanchor · a standalone construct in psychoacousticsbasis3 fields · 5 citationsjingle · one word, three constructs

References

  1. Fletcher, H., & Munson, W. A. (1933). Loudness, its definition, measurement and calculation. The Journal of the Acoustical Society of America, 5(2), 82-108. https://doi.org/10.1121/1.1915637
  2. Robinson, D. W., & Dadson, R. S. (1956). A re-determination of the equal-loudness relations for pure tones. British Journal of Applied Physics, 7(5), 166-181. https://doi.org/10.1088/0508-3443/7/5/302

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