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 Multi-Way Conventional loudspeakers with crossovers

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Sonusthree
diyAudio Member

Join Date: Dec 2005
Location: Sussex, UK
Quote:
 Originally posted by y8s nah a pendulum of a given length will always swing at the same frequency, regardless of amplitude. unless of course the amplitude is zero. high school physics.
I don't remember mentioning amplitude? I referred to altering the frequency of a pendulum.

Svante
diyAudio Member

Join Date: Feb 2004
Location: Stockholm
Quote:
 Originally posted by darkfenriz approx. 1003 hPa
__________________
Simulate loudspeakers: Basta!
Simulate the baffle step: The Edge

 15th June 2007, 11:58 PM #33 Svante   diyAudio Member     Join Date: Feb 2004 Location: Stockholm Actually 0 Hz can be interpreted in many different ways. One would be like the professor next door to me says: "frequency is the same as 'often-ness'". From that definition, 0 Hz would mean that the event that we study has never happened. Like: At what frequency has God created earths (ok, bad example for religous people ). Another one would be Fourier analysis. A signal only containing 0 Hz would be a signal that has been and will be forever "on" at a fixed value. Even before big bang, it was on. This is of course not possible. Yet another way would be to make Fourier analysis of a snippet of a signal (this is the way we usually do it). By doing so we limit the frequency resolution and each frequency bin will have a non-zero width. In this case, the DC of the signal comes out in the 0 Hz bin. __________________ Simulate loudspeakers: Basta! Simulate the baffle step: The Edge
Cal Weldon
Speakerholic
diyAudio Moderator

Join Date: Jan 2004
Location: Near Vancouver
Quote:
 Originally posted by Sonusthree I don't remember mentioning amplitude? I referred to altering the frequency of a pendulum.
If I remember correctly, and I think it's what y8s is referring to, is that as a pendulum reduces it's amplitude, the frequency does not change. In order to change the frequency, you must change the length of the pendulum.

Did I get that right?
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Let's help Ruth and Dave

MJL21193
Account disabled at member's request

Join Date: Mar 2007
Quote:
 Originally posted by Cal Weldon In order to change the frequency, you must change the length of the pendulum. Did I get that right?

Yes.

 16th June 2007, 01:38 AM #36 bear expert in tautology diyAudio Member     Join Date: Apr 2002 Location: New York State USA The fan works for me. Unidirectional flow = DC = No Hertz at all. With laminar air flow, if you want to get into it deeper. Thus, by extrapolation we have those woofers that actually use a fan. _-_-bear __________________ _-_-bear http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- every once in a while I say something that makes sense... ]
 16th June 2007, 03:59 AM #37 Hartono   diyAudio Member   Join Date: Nov 2002 Location: currently in China Hi Bear, "Thus, by extrapolation we have those woofers that actually use a fan." you mean THAT woofer ? I'll go with aircon, much cooler and cheaper. Hartono

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