3D音效的處理在於使用耳機或是兩個喇叭就可達到有如真實世界的聽覺效果，其主要的技術在於利用頭部轉移函數的運算合成。本論文內容主要探討3D音效的架構和實現。由於3D音效以即時性的處理計算和三度空間的定位效果為主要考量，因此如何建立模型，減少龐大的參數量是首要主要步驟，論文裡提出六種模型討論，這裡可依使用者的需求來選擇，在經探討模擬後會發現效果最好的是Kautz模型。另外由於輸出以耳機和喇叭為主，當使用喇叭播放時，則需要加上反側音消除架構。反側音的非最小相位和因果性都會在論文裡說明改善。最後以高速的數位信號處理器來實現即時3D音效。藉由本論文對3D音效的探討，可以了解如何改善一些限制來達到良好定位的3D音效技術，使之更加逼真完美。

In this thesis, issues of modeling and crosstalk cancellation of spatial audio system have been studied. Six models have been applied to model the transient and frequency responses of the head-related transfer function (HRTF) using MIT Kemar as the database. In particular, the Kautz filter is proposed as if renders a low complexity in implementation and high fidelity in reproducing spatial audio signals. Crosstalk cancellation using loudspeakers as displays has also been investigated. Technical problems in crosstalk cancellation on non-minimum phase zero, causality have been addressed. The modeling and control approaches are verified using a TI C6701 EVM to assess the performance and complexity.

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