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Comparison of Acceptable Noise Level Generated Using Different Transducers and Response Modes
Liang Xia1, Jingchun He2, Yuanyuan Sun1
1Department of Otolaryngology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Xuhui District, Shanghai 200233, China.
Neural Plasticity
|July 27, 2018
Summary
The acceptable noise level (ANL) in Mandarin listeners is consistent across different testing methods. Presentation and response modes do not significantly impact ANL measurements, suggesting flexibility in audiological assessments.
Area of Science:
- Audiology
- Speech and Hearing Science
Background:
- The acceptable noise level (ANL) is a measure of auditory tolerance.
- ANL is calculated as the difference between the most comfortable listening level (MCL) and background noise level (BNL).
Purpose of the Study:
- To compare the ANL obtained using different presentation and response modes in Chinese adults with normal hearing.
- To evaluate the reliability of various methods for measuring ANL.
Main Methods:
- Twenty Chinese subjects with normal hearing participated.
- ANL was measured using Mandarin speech materials.
- Four methods were employed: loudspeaker with self-adjusted noise (LS), loudspeaker with audiologist adjustment (LA), earphones with self-adjusted noise (ES), and earphones with audiologist adjustment (EA).
Main Results:
- No significant differences were found in ANL values across the different presentation (loudspeaker vs. earphones) and response (self-adjusted vs. audiologist-adjusted) modes.
- Significant correlations were observed between ANL, MCL, and BNL measurements obtained from different methods.
Conclusions:
- The ANL in normal-hearing Mandarin listeners is not significantly affected by presentation or response modes.
- Earphone audiometry is a reliable and convenient alternative to sound field audiometry for ANL measurement.
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