用谐波峰值突出度预测嗓音障碍语音中的可懂度缺陷
Predicting Intelligibility Deficit in Dysphonic Speech with Cepstral Peak Prominence.
作者信息
Ishikawa Keiko, de Alarcon Alessandro, Khosla Sid, Kelchner Lisa, Silbert Noah, Boyce Suzanne
机构信息
1 Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, Champaign, Illinois, USA.
2 Department of Otolaryngology-Head & Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
出版信息
Ann Otol Rhinol Laryngol. 2018 Feb;127(2):69-78. doi: 10.1177/0003489417743518. Epub 2017 Dec 10.
OBJECTIVES
The aim of this study was to examine the potential of cepstral peak prominence (CPP) for predicting the intelligibility deficit in dysphonic speech.
METHODS
Sentences from Hearing-in-Noise Test were recorded from 18 speakers with dysphonia and 18 speakers with normal voice. These samples were presented to 60 adults with normal hearing in quiet and noise at signal to noise ratio of +0 dB. Intelligibility was measured by orthographic transcription. Cepstral peak prominence was measured for all samples. Correlation between CPP and intelligibility score was examined.
RESULTS
Intelligibility was significantly lower in dysphonic speech than normal speech in the presence of background noise. The correlation between CPP and intelligibility score was moderate when the intelligibility scores were averaged per speaker.
CONCLUSIONS
Cepstral peak prominence only moderately predicts intelligibility deficit in dysphonic speech. Accordingly, CPP alone is not sufficient for describing the deficit.
目的
本研究旨在探讨谐波峰值突出度（CPP）预测嗓音障碍患者语音清晰度缺陷的可能性。
方法
从18名嗓音障碍患者和18名嗓音正常者中录制了《噪声中听力测试》中的句子。将这些样本以信噪比为+0 dB的安静和噪声环境呈现给60名听力正常的成年人。通过正字法转录测量清晰度。对所有样本测量谐波峰值突出度。检查CPP与清晰度得分之间是否存在相关性。
结果
在存在背景噪声的情况下，嗓音障碍患者的语音清晰度显著低于正常语音。当按每位受试者平均清晰度得分时，CPP与清晰度得分之间存在中等程度的相关性。
结论
谐波峰值突出度仅能适度预测嗓音障碍患者的语音清晰度缺陷。因此，仅靠CPP不足以描述这种缺陷。
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