改进了施罗德谐波复信号，消除干扰听觉实验的固定频率成分。
Suppressing spectral edge effects in Schroeder Harmonic Complex
- 提出新方法抑制施罗德信号中的固定频率分量
- 显著降低听觉感知中不必要的稳态成分
- 适合研究听觉系统对调频敏感性的实验
施罗德谐波复信号是周期性、带限的信号，类似于频率随时间变化的音调，广泛用于研究听觉系统对频率色散和调频敏感性的现象。然而，这类信号中还包含两个稳定的‘频率固定’分量，这些成分易于被察觉，可能干扰行为实验的解读。本文提出一种改进版本的施罗德谐波复信号，能有效抑制这些不期望的稳态成分，提升实验信号的纯净度。
原文摘要 · Abstract (English)
Schroeder's harmonic complexes are periodic, band-limited signals that are analogous to tones whose frequency increases or decreases over time. As such, they have been widely employed to study phenomena related to frequency-dispersion and frequency-modulation sensitivity in the auditory system. However, Schroeder's complexes also embed two steady ``frequency-fixed'' components. Because these components are easily audible, they may complicate interpretation of behavioral experiments. Here I present a variation of Schroeder's harmonic complex that largely suppresses these undesired steady components.
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