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：扬声器渲染技术通常假设扬声器等距布局以生成幻象声源。典型的家庭音响设置可能无法满足这一条件——扬声器偏离理想位置时需进行校准。标准校准方法是在听音点处补偿各扬声器的延迟并匹配其响度。研究发现，当该校准流程应用于一对扬声器中某一支显著更靠近听音者的情况时，会发生幻象声像偏移。本文提出一种针对非等距扬声器布局的新型声像定位方法，该方法通过直达声控制定位角度，而感知响度则由完整脉冲响应决定。主观听音测试验证了该方法的有效性，并量化了补偿方案的感知效果。在标准校准导致平均10度定位误差的测试场景中，所提出的直达声补偿方案能将幻象声源基本恢复至预期位置。