Unverified80% confidenceDecision RuleTime unknown
电子款白噪音机需确认音频为无缝循环（seamless loop）且单段样本≥30分钟，短于10秒的循环样本在安静夜晚会形成可辨识的重复节奏，反而干扰入睡
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80%
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Long-term
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Unverified电子采样白噪音机需确认音频为无缝循环（seamless loop），采样时长＜30秒的低端机型会出现明显的重复接缝，反而干扰睡眠95% similarUnverified数字白噪音机务必确认音源为无缝循环（seamless loop），劣质机型循环周期短（＜30秒）会出现明显重复接缝，反而干扰入睡93% similarUnverified真正的白噪音机应使用循环无缝拼接的音频而非短音频loop，选购时确认标注'无缝循环(seamless loop)'或音频时长≥30分钟，短loop会因周期性重复反而干扰入睡93% similarUnverified电子采样式白噪音机应确认单条音效采样时长≥20分钟或采用无缝循环技术，采样过短（＜30秒循环）会导致明显的重复顿挫感，反而干扰入睡92% similarUnverified真正的白噪音机应采用无缝循环（seamless loop）音频，播放超过30分钟无可察觉的接缝断点，劣质机型循环点明显会反而干扰入睡92% similar
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