Natural Science Forum / Physics / Acoustics / January 2004

Hi,

In loudspeaker design it is often referred to a diffraction effect
which originates in this: A box mounted driver radiates in half space
at high frequencies but full space at low frequencies. This effect
leads to a raise of the response of 6 dB for high frequencies,
relative to the low frequencies. (neglecting all other effects).

My question is, what happens in the transition band? How does the
shape of the baffle affect the steepness etc of the transition, and
exactly how can the transition be described in mathematical terms? A
reference to a web page or scientific journal would be great, if the
matter is to complex to post here.

Thx
/Svante