Robust Voice Activity Detection Using Feature Combination
محل انتشار: بیست و یکمین کنفرانس مهندسی برق ایران
سال انتشار: 1392
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 925
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شناسه ملی سند علمی:
ICEE21_380
تاریخ نمایه سازی: 27 مرداد 1392
چکیده مقاله:
This paper presents a study of noise-robust voice activity detection (VAD) utilizing combination of feature vectors extracted from speech signals. Conventional VADs are sensitiveto non-stationary noise especially in low SNRs. Also situations such as cutting off of unvoiced regions of speech and randomoscillation of VAD decisions are unavoidable. To overcome these problems, the proposed algorithm utilizes measures such as energy differences, periodicity, zero crossing rate, and spectral differences between different sound frames. The performance of the proposed VAD algorithm is tested on realspeech signals. Comparisons confirm that the proposed VAD algorithm outperforms the conventional VADs, especially in the presence of background noise
کلیدواژه ها:
نویسندگان
Sahar Khaksar Haghani
Amirkabir University of Technology