کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
562842 875452 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Methods for formant extraction in speech of patients after total laryngectomy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Methods for formant extraction in speech of patients after total laryngectomy
چکیده انگلیسی

The paper shows the methods and its application for voice analysis suited to the group of subjects after total laryngectomy surgery. Our software was developed to evaluate and enhance laryngectomized patients’ rehabilitation process. The power spectral density imaging and formant frequencies extraction methods were adopted. The model of vocal tract was based on statistical, autoregressive process of speech production. The transversal filter and adaptive algorithm were implemented to estimate the transfer function of resonance cavities. The research is concerned with measurements of vowel articulation parameters, especially F1 and F2 formant frequencies. The significant difference of pathological and normal voice in vowel space separation has been presented. The authors found that formants in pseudowhisper speech are more pronounced while articulating vowel after consonant than for sustained vowel.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomedical Signal Processing and Control - Volume 1, Issue 2, April 2006, Pages 107–112
نویسندگان
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