在与不同数量的讲者混合的多讲者语中识别英语元音)
Xianhui Wang1,2, Li Xu2,3
1Departments of Anatomy and Neurobiology, Biomedical Engineering, Cognitive Sciences, and Otolaryngology-Head and Neck Surgery, University of California Irvine, Irvine, California 92697, USA.
JASA express letters
|April 4, 2024
概括
在多说话者声 (MTB) 噪音中识别英语元音是复杂的. 性能随着信号噪声比较低的多个说话器而下降,与辅音识别不同.
科学领域:
- 听觉感知是一种听觉感知.
- 在噪音中的语音处理.
背景情况:
- 在复杂的听觉环境中理解语音对于沟通至关重要.
- 之前的研究已经在各种噪音条件下探索了语音识别,但在多个说话者喋喋不休 (MTB) 中的元音识别需要进一步调查.
研究的目的:
- 为了研究英语母音识别性能在多说话者 (MTB) 噪音中.
- 为了确定说话者数量 (N) 和信号与噪声比 (SNR) 对元音识别的影响.
主要方法:
- 20名正常听力,母语英语的成年人参与了这项研究.
- 在h-V-d结构中的12个英语元音,在MTB (1-12个说话者) 和语音形状噪音中呈现.
- 刺激在SNR为-12, -6和0dB时呈现.
主要成果:
- 声母识别表现显示,在不太有利的SNR下,与说话者数量 (N) 有非单调的关系.
- 在母音识别上,MTBs的掩盖效应与辅音识别相当.
- 掩盖效应与之前报道的单词和句子识别效应相似程度较低.
结论:
- 竞争的说话者数量显著影响元音识别,特别是在低信号对噪声条件下.
- 多个说话者的喋喋不休噪音会影响元音和音的识别,但与更广泛的语音或句子识别不同.
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