语音理解和主观倾听在噪音中的努力与不同的OTEs和声音处理技术
Thomas Wesarg1, Konstantin Wiebe, Julio Cesar Galindo Guerreros
1Department of Otorhinolaryngology-Head and Neck Surgery, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
耳植入物 (CI) 接受者在杂的环境中经历了更好的语音接收值 (SRT) 和更低的听力努力 (LE) 使用ForwardFocus声音处理技术和Kanso 2 (OTE2) 耳外声音处理器.
科学领域:
- 听力学和听力科学 听力学和听力科学
- 生物医学工程 生物医学工程
- 神经科学是一个神经科学.
背景情况:
- 耳植入物 (CI) 对于患有严重至严重的感觉神经听力损失的人来说至关重要.
- 优化声音处理 (SP) 和耳外 (OTE) 设备配置对于改善语音接收值 (SRT) 和减少在杂环境中的听力 (LE) 工作至关重要.
- 评估不同的麦克风技术和降噪策略是提高CI性能所必需的.
研究的目的:
- 在使用三种声音处理 (SP) 技术的耳植入物 (CI) 接受者中,比较语音接收值 (SRTs) 和主观听力 (LE).
- 为了评估两个非耳机 (OTE) CI声音处理器:Kanso 2 (OTE2) 和Kanso (OTE1).
- 评估固定适度定向麦克风 (标准),自适应定向麦克风 (Beam) 和空间降噪设置ForwardFocus的性能.
主要方法:
- 采用了前性,重复的措施,主题内设计.
- 20名双边严重至严重的感觉神经神经听力损失的IC接受者参与了这项研究.
- 通过使用国际康复听力学协会 (ICRA) 的奥尔登堡句子测试,在不同空间配置 (S0N90-180-270和S0NCI) 的噪音中测量了SRT和LE,并使用了自适应分类倾听力度计 (ACALES).
主要成果:
- 与S0N90-180-270配置中的OTE2一起,ForwardFocus与Beam (-3.13 dB SNR,4.60 ESCU) 和标准 (0.43 dB SNR,5.32 ESCU) 相比,产生了明显更好的SRT (-4.28 dB SNR) 和较低的LE5dB (2.61 ESCU).
- 在S0N90-180-270配置中,ForwardFocus与OTE2在SRT和LE5dB两种情况下都表现出了比Beam与OTE1更好的性能.
- 在S0NCI与OTE2的配置中,ForwardFocus与Beam (-1.23dB SNR) 和标准 (1.83dB SNR) 相比,也改善了SRT (-2.78dB SNR).
结论:
- 耳植入器接收者在使用ForwardFocus声音处理技术与Kanso 2 (OTE2) 耳外声音处理器时,在S0N90-180-270空间配置中获得最佳的SRT和最低的LE.
- 适应性分类倾听力度量化 (ACALES) 方法是评估CI接受者的主观倾听力度的可行方法.
- 这些发现强调了选择适当的声音处理策略和设备配置的重要性,以优化CI用户的听觉康复结果.
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