Abstract
Listener envelopment refers to the sensation of being surrounded by sound, either by multiple direct sound events or by a diffuse reverberant sound field. More recently, a specific attribute for the sensation of being covered by sound from elevated directions has been proposed by Sazdov et al. and was termed listener engulfment. This contribution investigates the effect of the temporal and directional density of sound events on listener envelopment and engulfment. A spatial granular synthesis technique is used to precisely control the temporal and directional density of sound events. Experimental results indicate that a directionally uniform distribution of sound events at time intervals $\Delta t < 20$ milliseconds is required to elicit a sensation of diffuse envelopment, whereas longer time intervals lead to localized auditory events. It shows that elevated loudspeaker layers do not increase envelopment, but contribute specifically to listener engulfment. Lowpass-filtered stimuli increase envelopment, but lead to a decreased control over engulfment. The results can be exploited in the technical design and creative application of spatial sound synthesis and reverberation algorithms.
Abstract (translated)
听众沉浸感是指被多个直接声音事件或扩散的声场包围的感觉。最近,Saddov等人提出了一种特定的属性,即从高角度覆盖声音的感觉,并将其称为听众沉浸感。这项贡献研究了声音事件的时间和方向密度对听众沉浸感和沉浸感的影响。使用空间颗粒合成技术精确控制了声音事件的时间和方向密度。实验结果显示,在时间间隔 $Delta t < 20$ 毫秒的情况下,方向分布均匀的声事件需要在特定方向上呈现出扩散的沉浸感,而更长的时间间隔会导致局部听觉事件。这表明,高音量扬声器层不增加沉浸感,而是专门对听众沉浸感做出贡献。低通滤波器过滤的信号增加了沉浸感,但减少了对沉浸感的控制权。这些结果可以在空间声合成和反射算法的技术设计和创造性应用中利用。
URL
https://arxiv.org/abs/2301.10210
