Sreeram K Narayanan, Palle Rye, Sabina Storbjerg Houmøller, Anne Wolff, Dan Dupont Hougaard, Michael Gaihede, Jesper Hvass Schmidt, Dorte Hammershøi
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引用次数: 0
摘要
目标：言语清晰度指数（SII）用于量化言语的可听度。本研究探讨了自我报告的助听器（HA）效果与根据初始验配（IF）增益计算的助听 SII（SIIA）差值和根据第二代国家声学实验室非线性（NAL-NL2）规定的助听 SII（SIIA）差值之间的关系：设计：前瞻性观察研究：研究包括 718 名首次使用 HA 的用户和 253 名经验丰富的用户。所有用户都在三种输入水平（55、65 和 80 dB SPL）下进行了有效的实耳测量（REM）：结果：在 55 和 65 dB SPL 时，IF 提供的增益低于 NAL-NL2。当输入音量从 55 分贝 SPL 增加到 80 分贝 SPL 时，中频增益比 NAL-NL2 表现出更小的压缩。平均而言，在所有输入电平下，IF 提供的 SIIA 都明显低于 NAL-NL2。在 80 dB SPL 输入水平和 0 dB 信噪比（SNR）条件下，中频和 NAL-NL2 的 SIIA 差异可预测首次使用 HA 用户的自我报告结果：这项研究表明，要获得更好的自我报告结果，最好在高输入水平下获得与 NAL-NL2 接近的 SIIA。.
Difference in SII provided by initial fit and NAL-NL2 and its relation to self-reported hearing aid outcomes.
Objective: The speech intelligibility index (SII) is used to quantify the audibility of the speech. This study examined the relationship between self-reported hearing aid (HA) outcomes and the difference in aided SII (SIIA) calculated from the initial fit (IF) gain and that prescribed as per the second generation of National Acoustic Laboratory Non-Linear (NAL-NL2).
Design: A prospective observational study.
Study sample: The study included 718 first-time and 253 experienced HA users. All users had a valid real-ear measurement (REM) at three input levels (55, 65 and 80 dB SPL).
Results: The gain provided by IF was lower than NAL-NL2 at 55 and 65 dB SPL. IF gain exhibited reduced compression than NAL-NL2 as input levels increased from 55 to 80 dB SPL. On average, the SIIA provided by IF was significantly lower than that for NAL-NL2 at all input levels. The difference in SIIA between IF and NAL-NL2 at 80 dB SPL input level with 0 dB signal-to-noise ratio (SNR) turned out to be a predictor for self-reported outcome for first-time HA users.
Conclusion: The study suggests that an SIIA close to that provided by NAL-NL2 at high input levels would be preferred to obtain a better self-reported outcome. .
期刊介绍：
International Journal of Audiology is committed to furthering development of a scientifically robust evidence base for audiology. The journal is published by the British Society of Audiology, the International Society of Audiology and the Nordic Audiological Society.
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