2019
DOI: 10.17586/2226-1494-2019-19-1-180-183
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Study of MVDR dual-microphone algorithm for speech enhancement in coherent noise presence

Abstract: Предмет исследования. Рассмотрены особенности реализации двухканального алгоритма минимума дисперсии шума (MVDR) для выделения речи из когерентного шума с использованием двухэлементных микрофонных решеток. Методы. Исследование выполнено с использованием аналитических моделей и записей, сделанных в безэховой камере. Основные результаты. Алгоритм MVDR может быть представлен как комбинация дифференциального алгоритма с адаптивной настройкой нуля в направлении источника когерентной помехи и эквалайзера, выравниваю… Show more

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“…In recently years, microphone arrays [1] concerned, cause it uses spatial information of geometry microphone array, coherence of condition noise field, coherence of captured noisy signal to remove background noise, and sound interference. The minimum variance distortionless response (MVDR) [2][3][4][5][6] beamforming algorithm is now often popular used in microphone array system. MVDR, which based on a constraint condition of minimization of total power output noise and ensures undistorted target speaker, provides a optimal solution in speech application: speech recognition, speech enhancement, surveillance.…”
Section: Introductionmentioning
confidence: 99%
“…In recently years, microphone arrays [1] concerned, cause it uses spatial information of geometry microphone array, coherence of condition noise field, coherence of captured noisy signal to remove background noise, and sound interference. The minimum variance distortionless response (MVDR) [2][3][4][5][6] beamforming algorithm is now often popular used in microphone array system. MVDR, which based on a constraint condition of minimization of total power output noise and ensures undistorted target speaker, provides a optimal solution in speech application: speech recognition, speech enhancement, surveillance.…”
Section: Introductionmentioning
confidence: 99%