Unverified50% confidenceFactTime unknown
The automated noise reduction system uses pink noise as a countermeasure when detected environmental noise exceeds a preset threshold.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026
Sources
Related Claims
Unverified生成粉红噪音的常见方法包括Voss-McCartney算法、IIR滤波法和FFT频域法79% similarUnverified白噪音音箱的有效降噪需覆盖50-60分贝的稳定输出，且频率集中在低频（<500Hz）的粉红噪音比纯白噪音更接近子宫环境、安抚效果更好，选购时应确认支持粉红噪音/心跳声/雨声等低频音效74% similarUnverified降噪分'硬件定向降噪'和'AI软件降噪'，嘈杂环境（咖啡厅、展会）应看是否有指向性拾音+环境噪声抑制，纯软件降噪在强背景音下会连人声一起削弱导致转写更差73% similarUnverified白噪音的有效性来自掩蔽效应（masking），需覆盖环境突发噪音的频段，粉红噪音（Pink Noise）比纯白噪音更接近自然声、低频更柔和，更适合婴儿72% similar
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