时间-频率分析与时间和频谱分辨率作为人类听觉系统

[1992] Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis Pub Date : 1992-10-04 DOI:10.1109/TFTSA.1992.274127

F. Agerkvist

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引用次数: 3

摘要

人类对声音的感知是同时时频分析应用的合适领域，因为耳朵在两个领域都是选择性的。提出了一种带宽近似于临界频带的重构滤波器组。滤波器的正交性使得用真实信号检测掩蔽效应成为可能。滤波器组的树形结构使得难以获得衰减良好的阻带。使用不同长度的过滤器解决了这个问题

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Time-frequency analysis with temporal and spectral resolution as the human auditory system

The human perception of sound is a suitable area for the application of a simultaneous time-frequency analysis, since the ear is selective in both domains. A perfect reconstruction filter bank with bandwidths approximating the critical bands is presented. The orthogonality of the filter makes it possible to examine the masking effect with realistic signals. The tree structure of the filter bank makes it difficult to obtain well-attenuated stop-bands. The use of filters of different length solves this problem.<>

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[1992] Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis

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