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Hi, there I wanna know the way to evaluate a anechoic chamber, semi anechoic chamber and reverbration room. Please let me know the standards or manual of evaluating those rooms. Thanks in advance.

Hi!~ It's too small to measure RPM with a optical tachometer. Is there any method to get RPM of a small motor? Thanks in advance...

Hi.. Let me know the acoustic impedance of a glass wool. Thanks in advance..

Ahh...I mean it's acoustic analysis..

Hi! I'd like to know the FEM analysis of a silencer with SYSNOISE. Anybody to know any site of it? Thanks in advance~

Hi! I'd like to measure air-flow velocity at the end of the duct(dia 200mm) with pitot tube. (25m/s) I've found a schematic diagram on a measuring points like 0968*D, 0.865*D...etc...however but... how can I get its integrals? Just multiply with sectors? Let me know any formula or web in...

Hi! I wanna test the duct noise cancelation with ANC. Anyone who knows how can I get a ANC kit or something. Thanks in advance..

Hi! RodH Sorry, don't know much about ANC muffler, but I know the man working in the ANC Lab got the experience on a ANC muffler. Here's his e-mail. choong@ihanyang.ac.kr Good luck!

Hi. I've got a problem to prevent 'fatigue fracture of a fan'. Any idea to simulate it with ANSYS? or do you know any site dealing that problem? Thanx in advance.

Thanx jwillison! I've got progress with your help. Do you have any idea to do 'antialiasing effect' in UG? I'd like to improve my original model also. Tiff has shown a clear image, but still has 'aliased lines'. Thanks in advance~!

Hi! Beginner's simple question... How do I get a high quality image? My rough image with untidy lines doesn't get better, I use "High quality image" menu in "View>>Visualization" though. Thanks in advance~