Measurement of otoacoustic emissions by sound card
Du, Y.; Nie, K.; Liu, J.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 22(2): 363-366
2005
ISSN/ISBN: 1001-5515 PMID: 15884555 Document Number: 593898
A new method in OAE's measurement by computer sound card is introduced. It is a measurement system using SF-1 detector. We designed the appropriate analog filter amplifier peripheral, utilized the mature technology of computer sound card, and recorded the OAE signal using Windows' API function programming by VB. The recorded signals can be analyzed by Matlab, such as digital filtering and Coherence average. The system is, in the main, cost-effective. The statistical results of the experiments proved the reliability of the method.