This short video demonstrates the phenomenon of beats. Beats occur when two similar tones play at the same time.
The beat frequency is frequency of the volume oscillations and has a value of the difference between the two frequencies. fb =| f2 - f1 |
For this demo, a 110 Hz tone is played together with a 111 Hz tone, producing a beat frequency of 1 Hz.
Then a 110 Hz tone is played together with a 115 Hz tone, producing a beat frequency of 5 Hz.
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Негізгі бет Beat Frequency Physics Demonstration
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