کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
455808 695559 2006 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An improved wavelet-based speech enhancement by using speech signal features
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
An improved wavelet-based speech enhancement by using speech signal features
چکیده انگلیسی

This paper presents a new speech enhancement system that works in wavelet domain. The core of system is an improved WaveShrink module. First, different parameters of WaveShrink are studied; then, based on the features of speech signal, an improved wavelet-based speech enhancement system is proposed. The system uses a novel thresholding algorithm, and introduces a new method for threshold selection. Moreover, the efficiency of system has been increased by selecting more suitable parameters for voiced, unvoiced and silence regions, separately. The proposed system has been evaluated on different sentences under various noise conditions. The results show a plausible improvement in performance of system, in comparison with similar approaches.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Electrical Engineering - Volume 32, Issue 6, November 2006, Pages 411–425
نویسندگان
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