Development of High-performance Hearing Test System.

Author: Li CAO ¹ ; Yong LI ² ; Haiping HUANG ¹ ; Zhenjin DENG ¹ ; Bitao WU ¹ ; Pengju LIU ¹ ; Zaiming PENG ¹
Author Information

1. Hunan Institute of Medical Device Testing, Changsha, 410001.
2. Cofoe Medical Technology Co. Ltd., Changsha, 410007.
Publication Type:Journal Article
Keywords: audiometer; hearing test; pure tone audiometry; speech audiometry
MeSH: Audiometry, Pure-Tone/methods*; Hearing; Noise; Signal-To-Noise Ratio
From: Chinese Journal of Medical Instrumentation 2022;46(2):152-155
CountryChina
Language:Chinese
Abstract: This paper analyzes the shortcomings of the existing pure tone audiometers, and proposes a system to realize pure tone audiometry and speech audiometry with a new DSP processor. The pure tone test signal produced by the system has accurate frequency, high signal-to-noise ratio, and small harmonic distortion. The noise generator that comes with DSP adds a band-pass filter to realize the generation of narrow-band noise. At the same time, due to the modular structure of software design, the system has good ease of use and scalability. The test results show that the hearing test system has excellent performance and can be better used in hearing medical diagnosis.