在使用PRESTO的成年耳植入物使用者中评估高可变性语音识别
Terrin N Tamati1, Kathleen F Faulkner2, David B Pisoni3
1Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee.
Journal of the American Academy of Audiology
|September 25, 2023
概括
增加说话者的变性对耳植入物 (CI) 用户的语音识别产生负面影响,特别是在杂的环境中. 工作记忆容量对于CI用户理解不同说话者的语音能力至关重要.
科学领域:
- 听力学 听力学是指听力学.
- 神经科学是一个神经科学.
- 语音和听力科学 语言和听力科学
背景情况:
- 成年耳植入物 (CI) 用户的语音识别评估通常使用低说话者可变性材料.
- 对于高说话者变异性对CI用户语音识别和个体差异的影响的理解有限.
- 对于CI使用者来说,高说话变异性句子材料的临床实用性仍未得到充分研究.
研究的目的:
- 评估说话者变异性对成年CI用户句子识别的影响.
- 研究工作记忆容量与在高可变性条件下的语音识别之间的关系.
- 为了评估成年CI用户使用感知强度英语句子测试开放集 (PRESTO) 以不同的说话者可变性.
主要方法:
- 成年CI用户和正常听力 (NH) 成年人在CI模拟下完成了语音识别测试.
- 测试包括听力与噪音测试 (HINT;低可变性),AzBio (中度可变性) 和PRESTO (高可变性) 句子.
- 测试发生在安静和多人喋喋不休 (MTB) 中;在CI用户中评估工作记忆能力.
主要成果:
- 在CI和NH组中,语音识别性能随着说话者的变化增加而下降.
- 与HINT和AzBio.相比,PRESTO句子在多人喋喋不休 (MTB) 中表现明显较低.
- 工作记忆能力与CI使用者的句子识别准确度相关,在所有条件下.
结论:
- 特别是在PRESTO材料中,说话者的高变性会对CI用户和模拟NH听众的语音识别产生不利影响,特别是在背景噪音的情况下.
- 工作记忆能力是成年CI用户语音识别能力的一个重要因素.
- 像PRESTO这样的高可变性,多语者句子测试提供了一个强大的临床和研究工具,用于评估CI用户的语音识别和个人差异,而没有天花板效应.
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