在正常听力和耳植入物听众中感知失声.
Finn S Holtrop1, Ilse Y Haan1, Jorn Sangers1
1Department of Otolaryngology - Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health research institute, Amsterdam UMC Location University of Amsterdam, Amsterdam, 1081 HV, the Netherlands.
听力正常的听众可以使用感知失声来改善在反响环境中的语音识别. 这种效果,前面的声音减少了声效应.
科学领域:
- 听觉感知是一种听觉感知.
- 语音处理 语音处理
- 声学 声学 在声学上
背景情况:
- 反响显著降低了语音识别,在各种音响环境中带来了挑战.
- 感知失声是一种现象,在此之前的非目标语音可以在回声中提高目标语音的可理解性.
- 了解失声对于开发助听器和听力培训计划至关重要.
研究的目的:
- 为了研究正常听力 (NH) 的成年人和耳植入物 (CI) 用户的感知失声.
- 量化语音识别由于感知失声而改善的程度.
- 为了比较感知脱声效应与适应掩盖噪声的影响.
主要方法:
- 采用主体内重复措施设计,模拟反响和噪音.
- 评估语音识别使用数字三位数和辅音-母音-辅音单词任务.
- 对比识别与完整的刺激与只有最后一个单词或数字的刺激.
主要成果:
- 听NH的听众表现出明显的语音识别改进 (数字为26.5个RAU,单词为9.0个RAU) 与感知失声.
- 在回声中识别的改进大于在掩盖噪音时观察到的改进.
- CI用户在数字识别方面表现出类似的,尽管可能混的改善 (18.6 RAU).
结论:
- 听力正常的听众有效地利用感知失声来增强在反响条件下的语音识别.
- 研究结果表明,与噪声适应相比,脱声的机制是不同的.
- 需要进一步的研究来确认CI使用者的脱效应,并探索潜在的机制.
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