Question #dc913

1 Answer
Gió
Jul 20, 2015

A slight difference in frequency between two sound waves can cause the effect of beats.

Explanation:

This effect is used, for example, in tuning a musical instrument. Say a guitar, you set up the basic note (La, using a tuning fork) then you tighten the cord until you hear, plucking it, an effect of "weavy" sound" changing intensity periodically (the same as saying "a" opening and closing your mouth).
https://keterehsky.wordpress.com/2011/03/22/

I found this clip that can be interesting:

Hope it helps!

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