F0-induced formant measurement errors result in biased variabilities

被引：12

作者：

Chen, Wei-Rong ^{[1
]}

Whalen, D. H. ^{[1
,2
]}

Shadle, Christine H. ^{[1
]}

机构：

[1] Haskins Labs Inc, 300 George St, New Haven, CT 06511 USA

[2] CUNY, Program Speech Language Hearing Sci, New York, NY 10016 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2019年 / 145卷 / 05期

关键词：

REASSIGNED SPECTROGRAM; QUALITY; SPEECH; TIME;

D O I：

10.1121/1.5103195

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Many developmental studies attribute reduction of acoustic variability to increasing motor control. However, linear prediction-based formant measurements are known to be biased toward the nearest harmonic of F0, especially at high F0s. Thus, the amount of reported formant variability generated by changes in F0 is unknown. Here, 470 000 vowels were synthesized, mimicking statistics reported in four developmental studies, to estimate the proportion of formant variability that can be attributed to F0 bias, as well as other formant measurement errors. Results showed that the F0-induced formant measurements errors are large and systematic, and cannot be eliminated by a large sample size. (C) 2019 Acoustical Society of America

引用

页码：EL360 / EL366

页数：7