§Pre-ringing at high and low frequency before the arrival of
the direct sound pulse
§Pre/post equalization of the test signal performed in a way
which avoids time-smearing of the impulse response
§Sensitivity to abrupt pulsive noises during the measurement
§Skewing of the measured impulse response when the playback
and recording digital clocks are mismatched
§Cancellation
of high frequencies in the late part of the tail when performing
synchronous averaging