臺灣博碩士論文加值系統

本論文針對桌面及車內吵雜環境提出一即時抑制噪音源與真人語音活動偵測系統。並提出一個符合實驗室規模、使用USB1.1介面、8通道之即時性麥克風陣列訊號處理實驗平臺，且已實作完成。為了讓系統能適應於噪音源的變化與環境的特徵，論文中設計出一適應性空間濾波器並實做完成。適應性訊號處理的啟動時機則由真人語音活動偵測結果所決定。演算法皆實現於個人電腦上，並利用最佳化的函式庫來達到即時的效果。為了確認系統效能，此語音純化系統與兩種語音辨識器做結合，由實驗證明，此演算法能抑制干擾源的影響，並用來提升語音辨識率。

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