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Fast Fourier-based DSP algorithm for auditory motion experiments

机译:基于快速傅里叶的DSP运动听觉实验算法

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摘要

A digital signal-processing (DSP) technique for rapid generation of complex auditory motion stimuli based on dynamic linear changes in interaural delay is described. In this technique, a pair of complementary discrete Fourier transforms (DFTs) for which the component spacing in one series is different than that of the other is used. The appeal of this technique is its wide applicability, since it can generate real-time motion stimuli of any velocity and starting interaural delay for complex broadband or filtered noise waveforms and nonstationary sounds such as speech, music, and other natural sounds.
机译:描述了一种基于听觉延迟的动态线性变化来快速生成复杂听觉运动刺激的数字信号处理(DSP)技术。在该技术中,使用一对互补离散傅里叶变换(DFT),其一对序列中的成分间距不同于另一个序列中的成分间距。该技术的吸引力在于其广泛的适用性,因为它可以针对复杂的宽带或滤波后的噪声波形以及非平稳声音(例如语音,音乐和其他自然声音)生成任何速度的实时运动刺激,并开始耳间延迟。

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