Difference in SII provided by initial fit and NAL-NL2 and its relation to self-reported hearing aid outcomes.

IF 1.8 3区医学 Q2 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY

International Journal of Audiology Pub Date : 2024-11-01 Epub Date: 2023-12-19 DOI:10.1080/14992027.2023.2291633

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

Abstract

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 (SII_A) 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 SII_A provided by IF was significantly lower than that for NAL-NL2 at all input levels. The difference in SII_A 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. .

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初始验配和 NAL-NL2 提供的 SII 差异及其与自我报告的助听器效果的关系。

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。.

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Audiology 医学-耳鼻喉科学

CiteScore

4.90

自引率

14.80%

发文量

133

审稿时长

4-8 weeks

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.