虚拟声音色均衡信号处理方法的主客观分析

对五种用于扬声器虚拟声重发的音色均衡信号处理方法进行主观对比实验，表明不同的均衡方法存在明显的主观音色差异，以功率均衡方法音色效果最好，而不适当的音色均衡方法可能会适得其反。从信号处理的角度对音色均衡方法进行了进一步的分析，指出音色主要由信号处理函数零、极点分布决定，有效的均衡应能抵消信号处理函数在接近Z平面单位园处的极点（以及零点）。

Subjective and objective analyses of timber equalized algorithms for virtual sound reproduction by loudspeakers

The effects of five different timber equalized algorithms for virtual sound reproduction with loudspeakers are evaluated by subjective experiment. It is proved that there are distinct timber differences among the various equalized algorithms, with the effect of the power equalized being the best; an unsuitable equalized algorithm will result in rather poor effect. From the point of view of signal processing, the timber equalized algorithms are further analyzed. It is pointed out that the timber depends strongly on the positions of poles and zeros of the signal processing functions, and an effective equalized algorithm should eliminate or offset the poles and zeros that are near to the unit circle in the Z-plane.