Frequency of a quacking Duck

  • Thread starter timejim
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Main Question or Discussion Point

I recorded the sound of a Duck quack (kwack), then, using my frequency meter I was able to determine that the duck quacked at 479 Hertz, for this particular Duck. I am thinking of trying to determine the frequency of a Geese "honk" next. Stay tuned.
 

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  • #2
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u ahve way too much time on your hands! but its very interesting none the less.
 
  • #3
Njorl
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I would think that a duck's quack would have a very noisy signature. I bet the 479 hertz is just the largest component. Can you filter it out and repeat the measurement?

Njorl
 
  • #4
Monique
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Do female Ducks quack at a higher frequency?
 
  • #5
Ivan Seeking
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Originally posted by Monique
Do female Ducks quack at a higher frequency?
Only if you pull their tail

timejim,
Yes, our quack is made up of many frequencies. You can actually hear this since the duck does not produce a perfect tone. Listen to a 479 Hz tone, say using a tone generator chip or a 555 timer from Radio Shack; this sounds nothing like our duck...even if modulated in a quacking manner.

You could determine the dominate frequencies with the right equipment; you might consider a tuned, resonant circuit to check for the strength of each frequency - really the sound version of a radio which selects specific frequencies in the radio part of the EM spectrum. Your frequency meter is likely showing the RMS average of all frequencies present; with the dominant frequency(s) being the largest contributor(s).
 
  • #6
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Then you can let us know if they really do or do not echo.
If not, you can figure out why.
 
  • #7
Ivan Seeking
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  • #9
Originally posted by timejim
I recorded the sound of a Duck quack (kwack), then, using my frequency meter I was able to determine that the duck quacked at 479 Hertz, for this particular Duck. I am thinking of trying to determine the frequency of a Geese "honk" next. Stay tuned.
just give me the sound file. I'll post the FFT for everybody...
 
  • #10
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Originally posted by Monique
Do female Ducks quack at a higher frequency?
They don't quack unless the male duck gives them "quacking" permission! Har har har.
 

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