Wolfe Jace, Duke Mila, Schafer Erin C, Rehmann Julia, Jha Siddhartha, Allegro Baumann Silvia, John Andrew, Jones Christine
a Hearts for Hearing , Oklahoma City , OK , USA.
b Department of Speech and Hearing Sciences , University of North Texas , Denton , TX , USA.
Int J Audiol. 2017 Dec;56(12):976-988. doi: 10.1080/14992027.2017.1358467. Epub 2017 Aug 29.
The primary goal of this study was to evaluate a new form of non-linear frequency compression (NLFC) in children. The new NLFC processing scheme is adaptive and potentially allows for a better preservation of the spectral characteristics of the input sounds when compared to conventional NLFC processing.
A repeated-measures design was utilised to compare the speech perception of the participants with two configurations of the new adaptive NLFC processing to their performance with the existing NLFC. The outcome measures included the University of Western Ontario Plurals test, the Consonant-Nucleus-Consonant word recognition test, and the Phonak Phoneme Perception test.
Study participants included 14 children, aged 6-17 years, with mild-to-severe low-frequency hearing loss and severe-to-profound high-frequency hearing loss.
The results indicated that the use of the new adaptive NLFC processing resulted in significantly better average word recognition and plural detection relative to the conventional NLFC processing.
Overall, the adaptive NLFC processing evaluated in this study has the potential to significantly improve speech perception relative to conventional NLFC processing.
本研究的主要目标是评估一种针对儿童的新型非线性频率压缩（NLFC）形式。与传统的NLFC处理相比，这种新的NLFC处理方案具有适应性，并且有可能更好地保留输入声音的频谱特征。
采用重复测量设计，将参与者使用两种新型自适应NLFC处理配置时的言语感知与他们使用现有NLFC时的表现进行比较。结果测量包括西安大略大学复数测试、辅音-元音-辅音单词识别测试和峰力音素感知测试。
研究参与者包括14名年龄在6至17岁之间的儿童，他们患有轻度至重度低频听力损失和重度至极重度高频听力损失。
结果表明，与传统的NLFC处理相比，使用新型自适应NLFC处理可显著提高平均单词识别和复数检测能力。
总体而言，本研究中评估的自适应NLFC处理相对于传统NLFC处理有显著改善言语感知的潜力。
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