Analysis on stereophonic sound image for an off-center listener

作者：Xie, Bosun; Guo, Tiankui

来源：ACTA ACUSTICA, Chinese version, 2004, 29(5): 445-452.

• Off center listener
• Signal frequencies
• Spatial information
• Stereophonic loudspeaker pair
• Stereophonic sound image

The stereophonic sound image for an off-center listener is analysed theoretically and experimentally. The results show that, the sound image direction for an off-center listener depends on frequency. When listener departs from center position to some distance xmax or the frequency of signal is higher than a limit fmax, the sound image may locate outside the arrangement of the stereophonic loudspeaker pair. Therefore the spatial information of stereo is spoiled. It is also proved that xmax is inversely proportional to fmax, or conversely. A narrow span of loudspeaker pair or adding a front loudspeaker (as in 5.1 ch system) can enlarge listening area and stabilize sound image.

• 出版日期2004-9
• 单位华南理工大学