Triticum Agricolam Posted November 14, 2013 Author Report Share Posted November 14, 2013 A hot wire anemometer has been used to measure airspeed in ports, however I believe most of the research on this topic has already been done before. Much of this research have been presented and maybe available from aes.org. I'm sure you are right, I just wish I didn't have to pay to get the information. But I guess that's how it works. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
Chris Hammer Posted November 14, 2013 Report Share Posted November 14, 2013 Love seeing threads like this. Makes SMD such a great place...and all the positive reinforcement and questions building on the base test...I forsee a great thread. Sub'd MY BUILD *****http://tinyurl.com/gmcbuild***** Vehicles 2005 GMC Canyon CB1000r - Currently where any future funds are going. (exhasut,bazzaz, ohlins shock, screen, etc.) crf250r - Used to be race bike..now I just trail ride..practice at the track on it. CH80 - Daily beater (when nice weather)best 150$ ever spent. 100+mpg Sold to: Skullz - pstone11 - Leo1103 - Volvo 63' - pavelpardo - imnew59585 Shower farts still piss me off.I think theyre pretty neat. When the water runs down your crack as you let one out... its like shitting in a crockpot. Link to comment Share on other sites More sharing options...
revoracing247 Posted November 15, 2013 Report Share Posted November 15, 2013 It would be great to see a test doing core limits of the vent and compression and different flare radii. Would also love to see testing at 30hz and 25hz, possibly 20hz but that would be very rare in a real world situation to be played. i play 20Hz all the time I think you have a bit of truck stuck in your mud bro ~Ford Ranger, ext cabKenwood DDX4701/0ga stinger wiring for big 31/0ga ofc flextech wiring 3 kinetik 800's AQ2200 @1ohm Sundown Audio X15 in a 27Hz tuned ported box LE BUILD LOG!!! Link to comment Share on other sites More sharing options...
Krakin Posted November 15, 2013 Report Share Posted November 15, 2013 It would be great to see a test doing core limits of the vent and compression and different flare radii. Would also love to see testing at 30hz and 25hz, possibly 20hz but that would be very rare in a real world situation to be played. i play 20Hz all the time I meant the amount of people that play that low, plus the air velocity should be close to the same or lower from 25-20hz from my understanding, but I don't have the tools to measure the output of a correctly designed and assembled box. And who can even hear 20 hz jk Edit: Possibly a very slow sweep from 20-40hz to try and find peaks or other obstructions. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
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