HHR Ed Posted May 27, 2010 Report Share Posted May 27, 2010 somethin tells me my IQ isnt high enough to enter this thread sure it is, I got that info from google. But basically its saying that at higher frequencies, the speed of sound will change in relation to the sound wave. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
Mr. Darkjustice Posted May 27, 2010 Report Share Posted May 27, 2010 sure it is, I got that info from google. But basically its saying that at higher frequencies, the speed of sound will change in relation to the sound wave. you cheater, i thought all that was off the top of your head Fusion With A Stetsom 4k2d on 2 DC XL 15s tuned to 31hz and Subs and ports forward The Revolution Was Not Televised But There Is This Thread(clicky) Dr Merkenstein is my 360 gamertag and my profession. When shit gets real, call in the Doc Link to comment Share on other sites More sharing options...
Neo_frog Posted May 27, 2010 Report Share Posted May 27, 2010 In a non-dispersive medium sound speed is independent of sound frequency, so the speeds of energy transport and sound propagation are the same. For audible sounds air is a non-dispersive medium. But air does contain a small amount of CO2 which is a dispersive medium, and it introduces dispersion to air at ultrasonic frequencies (> 28 kHz).[3] In a dispersive medium sound speed is a function of sound frequency, through the dispersion relation. The spatial and temporal distribution of a propagating disturbance will continually change. Each frequency component propagates at its own phase velocity, while the energy of the disturbance propagates at the group velocity. Is this referring to my plane reference? If not, the original numbers thrown out there were 21kHz and 20mm linear excursion so that's what I've been basing my info on. And due to the rate of the cone, it would overthrow dispersion laws in the direction it's travelling. Edit: locally... Need an install? Hit me up.[email protected]Got car audio questions? Check here first!Everything you need to know. =]http://www.stevemeadedesigns.com/board/topic/83029-everything-you-need-to-know/ Link to comment Share on other sites More sharing options...
skittlesRgood Posted May 27, 2010 Report Share Posted May 27, 2010 In a non-dispersive medium sound speed is independent of sound frequency, so the speeds of energy transport and sound propagation are the same. For audible sounds air is a non-dispersive medium. But air does contain a small amount of CO2 which is a dispersive medium, and it introduces dispersion to air at ultrasonic frequencies (> 28 kHz).[3] In a dispersive medium sound speed is a function of sound frequency, through the dispersion relation. The spatial and temporal distribution of a propagating disturbance will continually change. Each frequency component propagates at its own phase velocity, while the energy of the disturbance propagates at the group velocity. i was going to ask neo frog a question and continue (what i thought was) an intelligent conversation but now i feel small and insignificant. lol i can follow what your saying but nothing beyond it. so i have no idea what the point is or what your explaining per our conversation. dont bother trying to help me out lol. im going to bed. your a crazy smart guy ed. id love to be able to talk with you one day about this stuff i wouldnt have much to say but i sure would learn a lot. If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
HHR Ed Posted May 27, 2010 Report Share Posted May 27, 2010 you cheater, i thought all that was off the top of your head nah, I had the info in my head but did a search to support what I was thinking. I knew that pressure doesnt change the speed of sound, but I was just trying to remember about how frequency effects it and could quite remember. BTW, I wonder if condensation would occur. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
skittlesRgood Posted May 27, 2010 Report Share Posted May 27, 2010 you cheater, i thought all that was off the top of your head SO DID I! tricked us. If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
Mr. Darkjustice Posted May 27, 2010 Report Share Posted May 27, 2010 nah, I had the info in my head but did a search to support what I was thinking. I knew that pressure doesnt change the speed of sound, but I was just trying to remember about how frequency effects it and could quite remember. BTW, I wonder if condensation would occur. all i know is it would drastically decrease the temperature around it? lol Fusion With A Stetsom 4k2d on 2 DC XL 15s tuned to 31hz and Subs and ports forward The Revolution Was Not Televised But There Is This Thread(clicky) Dr Merkenstein is my 360 gamertag and my profession. When shit gets real, call in the Doc Link to comment Share on other sites More sharing options...
HHR Ed Posted May 27, 2010 Report Share Posted May 27, 2010 Is this referring to my plane reference? If not, the original numbers thrown out there were 21kHz and 20mm linear excursion so that's what I've been basing my info on. And due to the rate of the cone, it would overthrow dispersion laws in the direction it's travelling. Edit: locally... It was in reference to a cone traveling faster than the speed of sound in general. And I know that 21K hz was mentioned as an example. But since ultrasonic sounds were in discussion I thought it would be interesting to see the relation of how really high frequency work with the speed of sound. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
HHR Ed Posted May 27, 2010 Report Share Posted May 27, 2010 all i know is it would drastically decrease the temperature around it? lol Heck yeah, and the friction of air on the cone itself could heat it up a great amount. If it was paper, it may combust, haha Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
Mr. Darkjustice Posted May 27, 2010 Report Share Posted May 27, 2010 Heck yeah, and the friction of air on the cone itself could heat it up a great amount. If it was paper, it may combust, haha but if were goin off the theory that it can handle such friction, then that wouldnt be a factor. it would more or less stay a within a small range of heat as far as the cone is concerned, but i would think it would at least make the magnet and any other metal parts slightly wet given how violent the air would rip past it droping the temp. but it may also do it inside the car as well..... or whats left of it lol. Fusion With A Stetsom 4k2d on 2 DC XL 15s tuned to 31hz and Subs and ports forward The Revolution Was Not Televised But There Is This Thread(clicky) Dr Merkenstein is my 360 gamertag and my profession. When shit gets real, call in the Doc Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.