Page 280 - The Master Handbook Of Acoustics
P. 280
255
DIFFRACTION OF SOUND
Point
Diffracted source
Direct
Observing point
FIGURE 11-9
Arrangement for Vanderkooy’s calculation of loudspeaker cabinet edge diffraction,
shown in Fig. 11-10.
5
10
Amplitude - dB 15
20
25
20 50 100 200 500 1 kHz 2 kHz 5 kHz 10 kHz
Frequency - Hz
FIGURE 11-10
The calculated effects of loudspeaker edge diffraction on the direct signal in the
arrangement of Fig.11-9. (After Vanderkooy, and Kessel. )
6
5
