This article discusses the use of sound sculptures as tunable modulators of the transmission characteristics of acoustic sources during performance. We propose IRIS, a sculpture consisting of a periodic composite formed by an acoustic double-fishnet made up of two discs with periodic perforations and independent rotation. From the analysis of the transmitted field and binaural impulse responses, we observed a sound focusing whose spectral and spatial location varies depending on the relative angle of rotation between the disks. This effect is verified using a synthesized sustained sound and a chord progression, and finally validated perceptually in a listening test with 11 musicians.

本文讨论了使用声音雕塑作为表演期间声源传输特性的可调调制器。我们提出了 IRIS，这是一个由周期性复合材料组成的雕塑，该复合材料由声学双渔网形成，该渔网由两个具有周期性穿孔和独立旋转的圆盘组成。通过对传输场和双耳脉冲响应的分析，我们观察到声音聚焦，其频谱和空间位置根据圆盘之间的相对旋转角度而变化。这种效果通过合成的持续声音和和弦进行进行验证，并最终在 11 名音乐家的听力测试中得到了感知验证。