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harmonics
Vibrations at frequencies which are integer multiples of that of a fundamental vibration: the ascending notes C, G, E, C', E', G' comprise a fundamental with its first five higher harmonics. Apart from their musical consonance, they are important because any periodically repeated signal – a vowel sound, for example – can be produced by superposing the harmonics of the fundamental frequency, each with the appropriate intensity and time lag.
Related category
• ACOUSTICS AND MUSIC
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