本文選題：虛擬聽(tīng)覺(jué)空間技術(shù)　切入點(diǎn)：頭相關(guān)傳輸函數(shù)　出處：《西安電子科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：虛擬聽(tīng)覺(jué)空間技術(shù)是多媒體領(lǐng)域的一項(xiàng)重要技術(shù)，用于在虛擬環(huán)境中加入與視覺(jué)同步的虛擬聲音，從而模擬出真實(shí)的場(chǎng)景。虛擬聽(tīng)覺(jué)空間技術(shù)廣泛應(yīng)用在軍事、娛樂(lè)、教育和醫(yī)療等諸多領(lǐng)域。因此，對(duì)虛擬聽(tīng)覺(jué)空間技術(shù)的研究具有非常重要的理論意義。 本文研究和分析了與虛擬聽(tīng)覺(jué)空間技術(shù)相關(guān)的空間聽(tīng)覺(jué)和HRTF理論知識(shí)，重點(diǎn)分析了基于HRTF的3D聲系統(tǒng)。通過(guò)對(duì)PKUIOA測(cè)量的HRTF數(shù)據(jù)庫(kù)進(jìn)行研究，設(shè)計(jì)并實(shí)現(xiàn)了基于HRTF的3D聲改進(jìn)系統(tǒng)。該系統(tǒng)在實(shí)現(xiàn)了原系統(tǒng)仿真遠(yuǎn)場(chǎng)水平平面和垂直平面環(huán)繞功能的基礎(chǔ)上，增加了三部分功能：第一，近場(chǎng)水平平面和垂直平面環(huán)繞；第二，特定方位角與水平角的距離變化模式；第三，對(duì)不同耳朵類型（大耳和小耳）進(jìn)行選擇的功能。最后，對(duì)系統(tǒng)產(chǎn)生的結(jié)果與HRTF數(shù)據(jù)進(jìn)行了詳細(xì)的對(duì)比和分析。結(jié)果表明，系統(tǒng)處理過(guò)后的音頻較原始音頻在空間感和立體感上有明顯提升；此外，，距離、耳朵類型和水平角三種因素會(huì)對(duì)HRTF產(chǎn)生不同程度的影響。
[Abstract]:Virtual auditory space technology is an important technology in the field of multimedia, which is used to add virtual sound synchronized with vision in virtual environment, so as to simulate real scene. Virtual auditory space technology is widely used in military and entertainment. Therefore, the research on virtual auditory space technology is of great theoretical significance. In this paper, the spatial hearing and HRTF theory related to virtual auditory spatial technology are studied and analyzed, and the 3D acoustic system based on HRTF is emphatically analyzed. The HRTF database of PKUIOA measurement is studied. A 3D sound improvement system based on HRTF is designed and implemented. Based on the original system simulation of far-field horizontal plane and vertical plane, three functions are added: first, near-field horizontal plane and vertical plane surround; Second, the distance between the azimuth angle and the horizontal angle; thirdly, the function of selecting different ear types (big ear and small ear). Finally, the results of the system are compared and analyzed in detail with the HRTF data. Compared with the original audio, the audio processed by the system can significantly improve the sense of space and the sense of three-dimensional, in addition, the distance, ear type and horizontal angle will have different effects on HRTF.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN912.3;TP391.9

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本文編號(hào)：1572842