An improved correction formula for the estimation of harmonic magnitudes and its application to open quotient estimation
An improved correction formula for the estimation of harmonic magnitudes and its application to open quotient estimation
复制标题
改进的谐波幅值估计修正公式及其在开商估计中的应用
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
A. Alwan
中科院分区：
文献类型：
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作者：
Markus R Iseli;A. Alwan
许多语音质量参数，如开放商（OQ），依赖于对源频谱的准确估计。例如，已知OQ与语音源频谱的前两个谐波（H/sub 1/-H/sub 2/）的幅度差相关。为了比较不同声道结构的OQ估计，通过消除声道共振的影响来实现幅度校正。本文中描述的改进的校正是受到h.m. Hanson的校正公式的启发（参见女性说话者的声门特征，博士）。论文，哈佛大学，剑桥，麻萨诸塞州，1995)。新的校正公式考虑了所有声道共振的带宽，最重要的是，它不局限于对非高元音的分析。使用Liljencrants-Fant （LF）和KLGLOTT88模型生成的合成元音，使用所提出的技术估算H/sub 1/-H/sub 2/，非常准确。
Many voice quality parameters, such as the open quotient (OQ), depend on an accurate estimate of the source spectrum. It is known that OQ, for example, is correlated with the magnitude difference of the first two harmonics (H/sub 1/-H/sub 2/) of the speech source spectrum. In order to compare OQ estimates across different vocal tract configurations a magnitude correction is achieved by removing the influence of vocal tract resonances. The improved correction described in this paper is inspired by a correction formula of H. M. Hanson (see Glottal characteristics of female speakers, PhD. dissertation, Harvard university, Cambridge, MA, 1995). The new correction formula accounts for the bandwidths of all the vocal tract resonances, and most importantly, is not limited to the analysis of non-high vowels. H/sub 1/-H/sub 2/ estimates, using the proposed technique with synthesized vowels generated with the Liljencrants-Fant (LF) and the KLGLOTT88 models, are very accurate.
DOI：
10.1121/1.410392
发表时间：
1994
期刊：
The Journal of the Acoustical Society of America
影响因子：
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作者：
Qi,Y;Bi,N
通讯作者：
Bi,N