ØA large
anechoic room was employed for full-range measurements
ØA
computer-controlled turntable was employed for rotation at fixed angular steps
ØThe AURORA
software was employed for generating the test signals and the
control pulses for the turntable
ØESS
(Exponential Sine Sweep) test signal
ØThe
loudspeaker response was measured with a class-0 B&K microphone,
and a
suitable inverse filter applied to the test signal