In concert hall studies, inter-aural cross-correlation (IACC), which is signal dependent, is used as a measure of perceptual source width. The same measure is used for perceptual source width in the case of distributed sources also. In this work, we examine the validity of IACC for both the cases and develop an improved measure for ensemble-like distributed sources. We decompose the new objective measure for perceptual ensemble source width (ESW) into two components (i) phase based directional angular measure, which is timbre independent (spatial measure) and (ii) mean time-bandwidth energy (MTBE), a perceptual weight, (timbre measure). This combination of spatial and timbral measures can be extended as an alternate measure for determining auditory source width (ASW) and listener envelopment (LEV) of arbitrary signals in concert-hall and room acoustics.
翻译:在音乐厅研究中,以信号为依存的跨文化交叉关系(IACC)作为衡量感知源宽度的尺度,在分布源的情况下,对感知源宽度也使用同样的尺度。在这项工作中,我们检查IACC对两种情况的有效性,并改进对共性分布源的量度。我们将关于感知共通源宽度的新客观尺度分解为两个组成部分(一)基于阶段的定向角测量,该方位独立(空间测量)和(二)平均时间段宽度能量(MTBE),一种感知量重量(强度测量)。这种空间和量度措施的结合可以作为确定音乐厅和室音响器中任意信号的听力宽度(ASW)和听器渗透(LEV)的替代措施。