✳flâneur — a map of the web's best reading

Mel scale - Wikipedia

en.wikipedia.org · 1,843 words · saved by 1 readers

Join us to Celebrate Women! Help close the knowledge gender gap on Wikimedia this March: click here and see what you can do. The mel scale (after the word melody)[1] is a perceptual scale of pitches judged by listeners to be equal in distance from one another. The reference point between this scale and normal frequency measurement is defined by assigning a perceptual pitch of 1000 mels to a 1000 Hz tone, 40 dB above the listener's threshold. Above about 500 Hz, increasingly large intervals are judged by listeners to produce equal pitch increments. A formula (O'Shaughnessy 1987) to convert f hertz into m mels is:[2] The formula from O'Shaughnessy's book can be expressed with different logarithmic bases: The corresponding inverse expressions are: There were published curves and tables on psychophysical pitch scales since Steinberg's 1937[3] curves based on just-noticeable differences of pitch. More curves soon followed in Fletcher and Munson's 1937[4] and Fletcher's 1938[5] and Stevens'

Mel scale - Wikipedia Jump to content From Wikipedia, the free encyclopedia Conceptual scale Plots of pitch mel scale versus hertz scale A440 Play ⓘ . 440 Hz = 549.64 mels The mel scale (after the word melody ) [ 1 ] is a perceptual scale of pitches judged by listeners to be equal in distance from one another. The reference point between this scale and normal frequency measurement is defined by assigning a perceptual pitch of 1000 mels to a 1000 Hz tone, 40 dB above the listener's threshold. Above about 500 Hz, increasingly large intervals are judged by listeners to produce equal pitch increme

Explore this link on the map →

related reading