Laboratoire des systèmes perceptifs27051, CNRS, Paris, France.
Département d'études cognitives, École normale supérieure, PSL University, Paris, France.
Trends Hear. 2021 Jan-Dec;25:23312165211041422. doi: 10.1177/23312165211041422.
This paper reviews the hypothesis of according to which an interfering sound is suppressed or canceled on the basis of its harmonicity (or periodicity in the time domain) for the purpose of Auditory Scene Analysis. It defines the concept, discusses theoretical arguments in its favor, and reviews experimental results that support it, or not. If correct, the hypothesis may draw on time-domain processing of temporally accurate neural representations within the brainstem, as required also by the classic equalization-cancellation model of binaural unmasking. The hypothesis predicts that a target sound corrupted by interference will be easier to hear if the interference is harmonic than inharmonic, all else being equal. This prediction is borne out in a number of behavioral studies, but not all. The paper reviews those results, with the aim to understand the inconsistencies and come up with a reliable conclusion for, or against, the hypothesis of harmonic cancellation within the auditory system.
本文回顾了根据听觉场景分析的目的，基于声音的谐和性（或时域中的周期性）来抑制或消除干扰声音的假设。它定义了这个概念，讨论了支持它的理论论据，并回顾了支持或不支持它的实验结果。如果这个假设是正确的，那么它可能依赖于脑干中时间上准确的神经表示的时域处理，正如双耳掩蔽的经典均衡-消除模型所要求的那样。这个假设预测，如果干扰是谐和的而不是非谐和的，那么受到干扰的目标声音会更容易听到，其他条件相同。这一预测在许多行为研究中得到了证实，但并非全部。本文回顾了这些结果，旨在理解其中的不一致之处，并对听觉系统中是否存在谐和性消除的假设得出可靠的结论。
