Insertion gain repeatability versus loudspeaker location: you want me to put my loudspeaker where?
The traditional 0 degree (straight-ahead) location of the loudspeaker during insertion gain measurements is a poor choice, based on theoretical considerations, from the standpoint of measurement repeatability. In a series of experiments, we were able to demonstrate that a location 45 degrees to the side, or 45 degrees up and 45 degrees to the side, provided a much more repeatable measurement of basically the same insertion gain response.
Killion
M C
MC
Etymotic Research, Elk Grove Village, Illinois.
Revit
L J
LJ
D000162:Acoustics; D001309:Auditory Threshold; D006310:Hearing Aids; D006801:Humans; D008144:Loudness Perception; D010898:Pitch Perception; D013017:Sound Localization