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An Improved Signal Processing Algorithm for Virtual Sound Using Four Loudspeakers

Bosun Xie

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Abstract

The defects of the traditional virtual sound with two loudspeakers and current virtual sound with four loudspeakers are analyzed. Then a new signal processing algorithm for four loudspeakers reproduction is proposed. Experimental results show that the new algorithm is able to recreate stable 360° sound image in horizontal plane, and able to improve lateral sound image obviously. Therefore the new signal processing algorithm is suitable to be used in multimedia computers and virtual reproduction of multichannel sound.

About this research paper

What this paper is about

The defects of the traditional virtual sound with two loudspeakers and current virtual sound with four loudspeakers are analyzed. Then a new signal processing algorithm for four loudspeakers reproduction is proposed. Experimental results show that the new algorithm is able to recreate stable 360° sound image in horizontal plane, and able to improve lateral sound image obviously. Therefore the new signal processing algorithm is suitable to be used in multimedia computers and virtual reproduction of multichannel sound.

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Method / approach

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Available abstract

The defects of the traditional virtual sound with two loudspeakers and current virtual sound with four loudspeakers are analyzed. Then a new signal processing algorithm for four loudspeakers reproduction is proposed. Experimental results show that the new algorithm is able to recreate stable 360° sound image in horizontal plane, and able to improve lateral sound image obviously. Therefore the new signal processing algorithm is suitable to be used in multimedia computers and virtual reproduction of multichannel sound.

Key concepts: Loudspeaker, Sound recording and reproduction, Computer science, Directional sound, SIGNAL (programming language), Acoustics, Sound (geography), Signal processing

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