Sisto Renata, Cerini Luigi, Sanjust Filippo, Moleti Arturo
Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers Compensation Authority (INAIL) Research, Monte Porzio Catone (RM), Italy
Department of Physics, University of Roma Tor Vergata, Roma, Italy
J Acoust Soc Am. 2017 Jul;142(1):EL13. doi: 10.1121/1.4990011.
Distortion product otoacoustic emissions (DPOAEs) have been accurately measured with an intensimetric technique, involving simultaneous measure of pressure and velocity in the ear canal, which allows one to correctly calibrate both the input stimuli and the otoacoustic emission (OAE) level. Suitable combinations of standard intensimetric quantities, active intensity and power density [Stanzial, Shiffrer, and Sacchi, J. Acoust. Soc. Am. 131, 269-280 (2012)], are used to equalize the stimuli transmitted to the middle ear, and to estimate the DPOAE level emitted by the eardrum. The DPOAE intensimetric spectra are consistent with those recorded with a high-quality conventional otoacoustic probe with state-of-the-art calibration of both stimulus and OAE response [Charaziak and Shera, J. Acoust. Soc. Am. 141, 515-525 (2017)], demonstrating the applicability of the intensimetric method to OAE measurements.
畸变产物耳声发射（DPOAEs）已通过一种强度测量技术进行了精确测量，该技术涉及同时测量耳道内的压力和速度，这使得人们能够正确校准输入刺激和耳声发射（OAE）水平。标准强度测量量、有效强度和功率密度的合适组合[斯坦齐亚尔、希夫勒和萨基，《美国声学学会杂志》131, 269 - 280 (2012)]被用于均衡传递到中耳的刺激，并估计鼓膜发出的DPOAE水平。DPOAE强度测量频谱与使用具有刺激和OAE响应的最新校准的高质量传统耳声探头记录的频谱一致[查拉齐亚克和谢拉，《美国声学学会杂志》141, 515 - 525 (2017)]，证明了强度测量方法在OAE测量中的适用性。
