Multiresolution spectrotemporal analysis of complex sounds
Multiresolution spectrotemporal analysis of complex sounds
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DOI：
10.1121/1.1945807
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发表时间：
2005-08-01
影响因子：
2.4
通讯作者：
Shamma, SA
中科院分区：
文献类型：
--
作者：
Chi, T;Ru, PW;Shamma, SA
一个计算模型的听觉分析的灵感来自心理声学和神经生理学的研究结果在早期和中央阶段的听觉系统。该模型提供了可能对声音感知至关重要的频谱和时间特征的统一多分辨率表示。该模型的简化的、更具体的定制版本已经通过在语音清晰度评估中的成功应用而得到验证[Elhilali等人，语音通讯41（2-3），331-348（2003）; Chi等人，J. Acoust.美国社会106，2719-2732（1999）]和解释单声道相位灵敏度的感知[R. Carlyon和S. Shamma，J. Acoust.美国社会114，333-348（2003）]。在这里，我们提供了一个更完整的数学公式的模型，说明复杂的信号是如何通过模型的各个阶段进行转换，并将其与现有的听觉处理模型进行比较。此外，我们概述了几种重建算法，以重新合成的声音从模型输出，以评估的保真度的代表性和贡献的不同功能和线索的声音感知。(C)2005年美国声学学会。
A computational model of auditory analysis is described that is inspired by psychoacoustical and neurophysiological findings in early and central stages of the auditory system. The model provides a unified multiresolution representation of the spectral and temporal features likely critical in the perception of sound. Simplified, more specifically tailored versions of this model have already been validated by successful application in the assessment of speech intelligibility [Elhilali et al., Speech Commun. 41(2-3), 331-348 (2003); Chi et al., J. Acoust. Soc. Am. 106, 2719-2732 (1999)] and in explaining the perception of monaural phase sensitivity [R. Carlyon and S. Shamma, J. Acoust. Soc. Am. 114, 333-348 (2003)]. Here we provide a more complete mathematical formulation of the model, illustrating how complex signals are transformed through various stages of the model, and relating it to comparable existing models of auditory processing. Furthermore, we outline several reconstruction algorithms to resynthesize the sound from the model output so as to evaluate the fidelity of the representation and contribution of different features and cues to the sound percept. (C) 2005 Acoustical Society of America.