Upper limits of auditory motion perception

听觉运动感知的上限

• 批准号: 327392-2013
• 负责人: Guastavino, Catherine
• 金额: $ 1.82万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=526948
• 关键词: Upper; limits; auditory; motion; perception

One of the major challenges to the auditory system in everyday listening is to track moving sound sources to predict their future path (e.g. an approaching car, a buzzing mosquito). However, our understanding of the perceptual (and physiological) underpinnings of auditory motion is still lagging compared to our understanding of static sound localization. If we know relatively little about auditory motion perception, we know even less about our ability to discriminate the velocity of moving sounds. Only a handful of studies have investigated auditory velocity perception and those that did used relatively slow velocities. But, we recently demonstrated that listeners are able to perceive the motion of rotating sounds at much higher velocities. Furthermore, most research on sound localization has been conducted in anechoic (or 'dry') environments. However, in almost all natural environments spatial hearing is challenged by the presence of reverberation. Detrimental effects of reverberation on static sound localization have been reported, but its effect on auditory motion will be investigated systematically for the first time in this program by repeating experiments in a large concert hall. Finally, this program will characterize various spatialization techniques for the positioning of virtual sound sources in terms of their ability to reproduce acoustic motion around the listener.

在日常听力中，听觉系统面临的主要挑战之一是跟踪移动的声源以预测它们未来的路径(例如，驶近的汽车、嗡嗡作响的蚊子)。然而，与静态声音定位的理解相比，我们对听觉运动的知觉(和生理)基础的理解仍然滞后。如果我们对听觉运动知觉知之甚少，我们对辨别运动声音速度的能力就更不了解了。只有少数几项研究研究了听觉速度知觉，而那些确实使用了相对较慢的速度的研究。但是，我们最近证明，听众能够以更高的速度感知旋转声音的运动。此外，大多数声音定位的研究都是在无回声(或干燥)环境中进行的。然而，在几乎所有的自然环境中，空间听觉都受到混响的挑战。混响对静态声音定位的不利影响已有报道，但在本节目中，将首次通过在大型音乐厅重复实验来系统地研究混响对听觉运动的影响。最后，本程序将根据虚拟声源在听者周围再现声学运动的能力来表征用于定位虚拟声源的各种空间化技术。