在真实的声音环境中,正常的听力和口头歧视
Adriana Lodeiro Colatosti1, Ignacio Pla Gil2, Antonio Morant Ventura2
1Servicio de Otorrinolaringología, Hospital Clínico Universitario de Valencia, Valencia, Spain; Servicio de Otorrinolaringología, Hospital General Universitario de Castellón, Castellón de la Plana, Spain.
复杂的声学环境对正常听觉的个体构成挑战,减少语音歧视,特别是在杂或多扬声器环境中. 语音分析显示,在这些条件下,母音和辅音存在特殊困难.
科学领域:
- 听觉感知和语音处理.
- 声学环境分析 声学环境分析
- 语音学和语音学 语音学和语音学
背景情况:
- 人类的听力不断受到复杂的声学环境的挑战.
- 语音感知受到声信号本身以外的许多因素的影响.
- 对于正常听力的人来说,了解这些挑战至关重要.
研究的目的:
- 评估正常听力个体在现实世界声学条件下辨别口语的听觉能力.
- 在各种声音环境中对误解的单词进行语音分析.
- 调查声学复杂性对语音可理解性的影响.
主要方法:
- 一项描述性,观察性,横截面研究,涉及20名正常听力参与者.
- 在开放场地进行口语声度测试,模拟真实世界的声学环境.
- 分析包括正确答案的百分比和错误的语音分析,视觉辅助器增强声音发射.
主要成果:
- 与"海洋" (97.2%) 相比,在"交通" (86.2%) 和"餐厅" (94%) 环境中,言语歧视明显下降.
- 语音分析发现了对特定音符的感知有显著差异,包括元音 ([o]),鼻音 ([n]),发音摩擦 ([r]),和发音停止 ([b],[g]).
- "交通"噪音特别影响了鼻子辅音识别,而"餐厅"噪音影响了母音和发音辅音.
结论:
- 声环境的动态特性对正常听力个体的语音可理解性有重大影响.
- 增加的声学复杂性,如背景噪音和竞争性语音,降低了从语音信号中提取信息的能力.
- 特定的语音在不同类型的声学掩饰中更容易降解,突出区域用于有针对性的听觉培训或技术干预.
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