Posted by Wayne Parham [ 67.66.229.193 ] on February 07, 2004 at 16:48:34:
In Reply to: Re: You can't posted by akhilesh on February 07, 2004 at 14:50:05:
The wavelength of 12kHz is an inch and an eighth. So naturally, a quarter wavelength is about a quarter inch. Alignment really has little meaning at that scale, since diaphragm dimensions are larger. Best thing is to shoot for a dense interference pattern, where there are literally so many interference nodes that the sound field balances out.