A System for Finding Speech Formants and Modulations via Energy Separation

被引：14
|
作者：
Hanson, Helen M. [1 ]
Maragos, Petros [2 ]
Potamianos, Alexandros [2 ]
机构：
[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA
[2] Harvard Univ, Div Appl Sci, Cambridge, MA 02138 USA
来源：
IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING | 1994年 / 2卷 / 03期
基金：
美国国家科学基金会;
关键词：
Algorithms - Amplitude modulation - Approximation theory - Bandpass filters - Convergence of numerical methods - Estimation - Frequency modulation - Frequency response - Iterative methods - Mathematical models - Polynomials - Speech recognition;
D O I：
10.1109/89.294358
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This correspondence presents an experimental system that uses an energy-tracking operator and a related energy separation algorithm to automatically find speech formants and amplitude/frequency modulations in voiced speech segments. Initial estimates of formant center frequencies are provided by either LPC or morphological spectral peak picking. These estimates are then shown to be improved by a combination of bandpass filtering and iterative application of energy separation.
引用
收藏
页码：436 / 443
页数：8
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