 Quote by DeepThunker
When a piano is played, say 440 hertz, the strings around it, as well as the wood box, resonate. That is to say vibrate. The other string's notes will never be as loud as the 440 hertz note you played. This makes sense as you have energy transfer loss. Because the notes are resonating the other notes are in phase with the Original note.
The waves blend together and create a fourier note.
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I am familiar with
Jean Baptiste Joseph Fourier. He pioneered what is known today as
Fourier Analysis, while experimenting with the propagation of heat, along the shores of the Nile, while serving in army of Napoleon.
I've never heard it called a fourier note. I must amend my earlier post, where I said only harmonics are generated. The other frequencies are
overtones of the fundamental 440Hz. Overtones are made up of harmonics, which are integral multiples of the fundamental, plus non_integral multiples or inharmonic overtones.They are (as you mentioned) lower in amplitude. If you were to input those frequencies to a spectrum analyzer (which plots freq versus amplitude), you would see a nice graph of that relationship.
I have heard that our brain may
believe it is hearing the fundamental, when only overtones are present. I haven't personally tried this but do know other musicians who have confirmed this.