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#96722 - 05/30/05 05:08 PM Frequency lengths
mhj Offline
frequent flier

Registered: 03/13/05
Posts: 11
Loc: Dallas TX
Help me settle an argument. Does anyone know the lenghts in feet and inches of 20 Hz, 200 Hz, 2000 Hz, 20,000 Hz.
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#96723 - 05/30/05 05:14 PM Re: Frequency lengths
BrenR Offline
connoisseur

Registered: 12/10/03
Posts: 3602
Loc: Winnipeg MB Canada
In reply to:

Help me settle an argument. Does anyone know the lenghts in feet and inches of 20 Hz, 200 Hz, 2000 Hz, 20,000 Hz.


Uh, you can't make that calculation. Hertz is chronological (time - more accurately, events in a length of time)... that's like asking how wide 13 minutes is.

Bren R.

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#96724 - 05/30/05 05:22 PM Re: Frequency lengths
mhj Offline
frequent flier

Registered: 03/13/05
Posts: 11
Loc: Dallas TX
the frequency wavelenghts is what i am looking for
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#96725 - 05/30/05 05:26 PM Re: Frequency lengths
BrenR Offline
connoisseur

Registered: 12/10/03
Posts: 3602
Loc: Winnipeg MB Canada
If we're talking based on the speed of sound (~1125 ft/s) you'd just take that and divide by frequency.

20Hz - ~56 ft
200Hz - ~5.265 ft, etc...

I'm rounding off... you can google the speed of sound for more accurate measurements.

Bren R.

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#96726 - 05/30/05 05:46 PM Re: Frequency lengths
mhj Offline
frequent flier

Registered: 03/13/05
Posts: 11
Loc: Dallas TX
Thats the calculation i was looking for Thanks I was not sure what it was
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#96727 - 05/30/05 07:47 PM Re: Frequency lengths
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10359
Mark, it depends on what the argument is about. If it's about sound waves of those frequencies in air, then the calculation is as Bren described. If it's about electrical signals at those frequencies going along a wire, the calculation would be based on a speed approaching the speed of light(about 186,000 miles per second)rather than the speed of sound, and would be many miles for all audio frequencies.
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#96728 - 05/30/05 08:03 PM Re: Frequency lengths
mhj Offline
frequent flier

Registered: 03/13/05
Posts: 11
Loc: Dallas TX
sound waves in air
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" If a man has an opinion and his wife is not there to hear it is he still wrong? "

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#96729 - 05/31/05 12:35 AM Re: Frequency lengths
BrenR Offline
connoisseur

Registered: 12/10/03
Posts: 3602
Loc: Winnipeg MB Canada
In reply to:

Mark, it depends on what the argument is about. If it's about sound waves of those frequencies in air, then the calculation is as Bren described.


At I think 20 celsius, at sea level, under the new moon *insert caveats here*

In reply to:

If it's about electrical signals at those frequencies going along a wire, the calculation would be based on a speed approaching the speed of light(about 186,000 miles per second)rather than the speed of sound, and would be many miles for all audio frequencies.


Thanks for clearing that up, I originally had a paragraph in my message about just that but I couldn't word it without confusing the subject more. You did very well.

Bren R.



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