Because that is how harmonics are defined!
Harmonics.
They're called "harmonics".
A series of frequencies that includes the fundamental frequency and integral multiples of it is called the harmonic series. These harmonics are produced when a wave is broken down into its constituent frequencies, with the fundamental frequency being the lowest and the higher harmonics being integer multiples of the fundamental frequency.
The fundamental = 1st harmonic is not an overtone!Fundamental frequency = 1st harmonic.2nd harmonic = 1st overtone.3rd harmonic = 2nd overtone.4th harmonic = 3rd overtone.5th harmonic = 4th overtone.6th harmonic = 5th overtone.Look at the link: "Calculations of Harmonics from FundamentalFrequency".
The fundamental = 1st harmonic is not an overtone!Fundamental frequency = 1st harmonic.The following tones have a higher frequency:2nd harmonic = 1st overtone.3rd harmonic = 2nd overtone.4th harmonic = 3rd overtone.5th harmonic = 4th overtone.6th harmonic = 5th overtone.Look at the link: "Calculations of Harmonics from Fundamental Frequency".
Harmonics.
They're called "harmonics".
Harmonics are multiples of the fundamental frequency of the wave.
A series of frequencies that includes the fundamental frequency and integral multiples of it is called the harmonic series. These harmonics are produced when a wave is broken down into its constituent frequencies, with the fundamental frequency being the lowest and the higher harmonics being integer multiples of the fundamental frequency.
These are known as harmonics, or overtones.
That are harmonics: fundamental + overtones. Calculations of harmonics from fundamental frequency. Look down to the related links: "Harmonics Calculator".
For a waveform containing harmonics, the harmonic frequencies are multiples of what is known as the 'fundamental' frequency. For example, for a waveform that contains 'third harmonics', the fundamental frequency is one-third the frequency of the harmonics. The fundamental frequency of vocal folds the speech mechanism as sound generator.
The fundamental = 1st harmonic is not an overtone!Fundamental frequency = 1st harmonic.2nd harmonic = 1st overtone.3rd harmonic = 2nd overtone.4th harmonic = 3rd overtone.5th harmonic = 4th overtone.6th harmonic = 5th overtone.Look at the link: "Calculations of Harmonics from FundamentalFrequency".
The fundamental = 1st harmonic is not an overtone!Fundamental frequency = 1st harmonic.The following tones have a higher frequency:2nd harmonic = 1st overtone.3rd harmonic = 2nd overtone.4th harmonic = 3rd overtone.5th harmonic = 4th overtone.6th harmonic = 5th overtone.Look at the link: "Calculations of Harmonics from Fundamental Frequency".
It depends on the fundamental frequency. If for example you wanted to find how many harmonics a 20 Hz sound has then its all the integer multiples of that frequency which are still within hearing range, i.e 20000 Hz. For 20 Hz this is 20000/20 = 1000 harmonics.
The multiples of the fundamental frequency created by plucking a string very quickly several times in a row are called harmonics. These harmonics contribute to the overall timbre or tone quality of the sound produced by the string.
The natural frequencies of an object are the frequencies at which the object tends to vibrate easily. Harmonics are frequencies that are integer multiples of the fundamental frequency. When an object is excited at its natural frequencies, it tends to resonate and produce harmonics of those frequencies.