Abstract
Two metal acoustic probes with a different length and diameter were made to investigate the effect of the probe-shape upon the acoustic properties in the evoked oto-acoustic emission (OAF). The acoustic distortion was more prominent in the longer probe with a smaller diameter than the shorter one with a longer diameter. The higher frequency stimulus was not so distorted as the lower one in both probes.
It is clear from our present observation that the shape of the ear probe is closely related to the presence or absence of the artefacts.
Further studies are necessary to determine what shape of the probe is ideal to minimize the artefacts in recording OAE
