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Beat frequency

  1. Jan 12, 2005 #1


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    if i play two pure tones together, i create a beat frequency. if i increase, any of the two pure tones, what happens to the beat frequency?

    heres my logic as to why the beat frequency can go either way: Fb = F1-F2, so if you increase F1 it increases and the opposite if you increase F2.

    how wrong am I?
  2. jcsd
  3. Jan 12, 2005 #2

    you are correct.

  4. Jan 12, 2005 #3


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    Science Advisor

    In other words, it is a matter of whether changing the frequency of one note moves the frequencies close together or further apart.
  5. Jan 12, 2005 #4


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    that means I got the question right on the test!!!! YAY
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