Top-down strategies in parameter selection of sinusoidal modeling of audio
Top-down strategies in parameter selection of sinusoidal modeling of audio
复制标题
音频正弦建模参数选择的自上而下策略
DOI：
10.1109/icassp.2010.5495954
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
A. Mouchtaris
中科院分区：
文献类型：
--
作者：
T. Hirvonen;A. Mouchtaris
音频的正弦建模需要通过分析原始信号频谱来选择模型参数。本文提出了两个改进的正弦选择，考虑如何心理声学掩蔽曲线可以计算在某些情况下使用自上而下的策略。首先，提出了一种与添加的残余信号结合使用的非迭代分量选择方法。测试表明，当该方法与噪声合成残差一起使用时，计算增益和质量增加。其次，考虑了双耳听觉中信号平移时掩蔽曲线的估计。测试表明，当重平移被应用于同时渲染的音频对象信号时，平移程度的知识是有益的。
Sinusoidal modeling of audio requires the model parameters to be selected by analyzing the original signal spectrum. This paper proposes two improvements in sinusoidal selection by considering how psychoacoustic masking curves can be calculated using a top-down strategy in certain situations. First, a non-iterative component selection method to be used in combination with an added residual signal is presented. Tests indicate computational gain and quality increase when the method is used with a noise-synthesized residual. Secondly, the estimation of the masking curve in binaural listening when signals are panned is considered. Tests show that knowledge of the degree of panning is beneficial when heavy panning is applied to simultaneously rendered audio object signals.