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声学研究者新突破:让计算机在"回声房间"里也能准确听懂人话
声学参数定义的选择也存在争议性。研究团队采用的2.5毫秒直接声窗口比传统定义更为严格,这虽然能够更精确地分离直接声,但可能不符合人类听觉的感知特点。人类听觉系统通常将前50毫秒内到达的声音都视为有助于清晰度的"有用信号",而研究中的定义可能过于技术化。
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