Loudspeaker rendering techniques that create phantom sound sources often assume an equidistant loudspeaker layout. Typical home setups might not fulfill this condition as loudspeakers deviate from canonical positions, thus requiring a corresponding calibration. The standard approach is to compensate for delays and to match the loudness of each loudspeaker at the listener's location. It was found that a shift of the phantom image occurs when this calibration procedure is applied and one of a pair of loudspeakers is significantly closer to the listener than the other. In this paper, a novel approach to panning on non-equidistant loudspeaker layouts is presented whereby the panning position is governed by the direct sound and the perceived loudness is governed by the full impulse response. Subjective listening tests are presented that validate the approach and quantify the perceived effect of the compensation. In a setup where the standard calibration leads to an average error of 10 degrees, the proposed direct sound compensation largely returns the phantom source to its intended position.

翻译：创建虚拟声源的扬声器渲染技术通常假设扬声器布局等距。典型家庭设置可能不满足此条件，因为扬声器偏离标准位置，因此需要相应的校准。标准方法是补偿延迟并匹配每个扬声器在听者位置处的响度。研究发现，当采用此校准程序且一对扬声器中的一个显著更靠近听者时，虚拟声像会发生偏移。本文提出一种针对非等距扬声器布局的声像定位新方法，其中定位位置由直达声控制，感知响度则由完整脉冲响应决定。通过主观听力测试验证了该方法，并量化了补偿的感知效果。在标准校准导致平均误差达10度的设置中，所提出的直达声补偿方法能显著将虚拟声源恢复至预期位置。