Reply to thread

Message

<blockquote data-quote="T3mpest" data-source="post: 2433273" data-attributes="member: 560148">Both of your ideas are valid as a matter of fact, they are the exact same thing.&nbsp; A Helmholtz Resonator has teh same physics behind it as the port of a subwoofer enclosure!&nbsp; On the negative stroke, pressure is increased in the box.&nbsp; Air is then forced out of the port, alot of it, very fast.&nbsp; So fast, as a matter of fact, the pressure on the inside of the box is below the pressure on the outside, for a small period of time.&nbsp; This causes the air to go back in to the box, the size of th hole will allow this to occur more or less often, due to the amount of air that can be released vs pressure inside of the box. (hence why both box size and tuning effect overall output)&nbsp; This is exactly how a Helmholtz Resonator works.&nbsp; Air passes over the bottle, some goes in, as soon as you stop blowing, it rushes out of the tiny hole, then back in, due to the overcompenation of the pressure difference.&nbsp; I think Frymans only mistake is that whoever explained a Helmholtz Resonator may have confused his understanding of WHY it works.In summation Helmholtz Resonator=bandpass effect!</blockquote>

[QUOTE="T3mpest, post: 2433273, member: 560148"] Both of your ideas are valid as a matter of fact, they are the exact same thing. A Helmholtz Resonator has teh same physics behind it as the port of a subwoofer enclosure! On the negative stroke, pressure is increased in the box. Air is then forced out of the port, alot of it, very fast. So fast, as a matter of fact, the pressure on the inside of the box is below the pressure on the outside, for a small period of time. This causes the air to go back in to the box, the size of th hole will allow this to occur more or less often, due to the amount of air that can be released vs pressure inside of the box. (hence why both box size and tuning effect overall output) This is exactly how a Helmholtz Resonator works. Air passes over the bottle, some goes in, as soon as you stop blowing, it rushes out of the tiny hole, then back in, due to the overcompenation of the pressure difference. I think Frymans only mistake is that whoever explained a Helmholtz Resonator may have confused his understanding of WHY it works. In summation Helmholtz Resonator=bandpass effect! [/QUOTE]

Verification