The timbre, tone color or characteristic quality of the human voice is analyzed by isolating the lowest harmonics during playback.

The recording features the open front unrounded vowel “a” (IPA) toned constantly by a male for about 12 seconds. The frequency is not steady; the fundamental harmonic varies constantly between 99 and 101 Hz, while all other harmonics follow it accordingly. Even an experienced singer would have trouble holding a tone at a machine-perfect constant frequency.

This type of representation, as it appears left on the screen, is called "spectrogram" and displays frequency vertically, time horizontally, while intensity is given by the colors. The short-term view on the right is called "spectrum" and it shows the same frequencies vertically, while on the horizontal axis are depicted intensities. At the bottom, the "timeline" displays the change in intensity (or volume) of the recording over time.

0:22 the 2nd harmonic (also 4th, 8th, etc.) is called "octave"
0:47 harmonics (3,) 4, 5 & 6 are known as "major chord"

This clip is part of the "Learn to Hear the Dissonances of Equal Temperament" e-course, in which contemporary music theory nomenclature like the above has been avoided:

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This clip was made with VoceVista Video by Sygyt Software: [ Ссылка ] If you like the software and my work, and would like to see more vids like this, please use the affiliation links below when purchasing your copy.

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Consulting and online sessions about Harmonic Theory with Bo Constantinsen are available at discounted prices for a limited time. Students will be the first to get access to the course when it's ready, at a ridiculous low price or even for free — depending on their involvement.

To get in touch, please write an email to the address published at the bottom of Bo's website:
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