能源、气候与材料2024onlinelibrary.wiley.com
降噪单层丝棉织物
Noise-canceling single-layer woven silk and cotton fabric
进阶 · 约 40 分钟读完前置知识：声学基础、主动降噪原理、纺织材料
导读
这篇论文研究一种具有降噪功能的单层编织丝绸和棉织物，通过织物结构实现对声音的衰减，可作为可穿戴或日常环境中的被动降噪材料。
HN 关注点：HN 读者对降噪材料的新形态感兴趣，讨论焦点集中在论文写作风格疑似 AI 生成，以及这类材料能否用于实际生活中的隔音需求。
HN 评论精选
这几条评论里：质疑 1 补充 2 亲历 1
质疑吐槽论文开头空洞套话，疑似 AI 生成
论文第一句“声音是一种无处不在的感官刺激，与人类体验密切相关”写得像外星人写的，连聋人都从中得不到任何信息。我觉得 LLM 让我对这类空洞文字更敏感也更反感了。
bogwog查看英文原文
> Sound, an omnipresent sensory stimulator, holds significant relevance in the human experience, as it continually engages our auditory and mental faculties. This first sentence makes it seem as if the paper was written by aliens. Not even deaf people would gain anything from that sentence. I think LLMs have caused me to be more perceptive to and annoyed by stuff like this.
补充失望于这是主动降噪，并回忆 90 年代失败的吸音涂料技术
唉，我还以为是很酷的被动降噪，结果是主动的。90 年代有人发明过能吸音的空心小珠子，说可以刷在墙上给整个房间或飞机降噪。但专利过期后也没了下文，我猜是找不到既粘住珠子又不堵住孔的粘合剂，或者涂料本身抵消了效果。
hinkley查看英文原文
Bah. I thought this was going to be cool passive noise reduction but it’s active. Back in the 90’s someone figured out these little hollow beads that ate sound. They talked about how we could paint them on walls to dampen whole rooms, or things like airplanes. Since we never heard from them again, even after the patents would have expired, I suspect that they couldn’t find a binder that adhered to the beads without filling in the holes. Or the paint neutralizes the effect.
补充询问用降噪织物给床做隔音罩的可行性
说到降噪织物，我最近在想：能不能给我的床做隔音？我住在喜欢的街区，但邻居有些晚上特别吵。我想在床脚下垫吸音材料，再在床上方挂一块大的隔音帘，像四柱床的帷幔那样。大家觉得可行吗？
optimer查看英文原文
Talking about noise-cancelling fabric, I recently wondered: Is it possible to noise-isolate my bed? I live in a beautiful apartment in my favorite part of the city. But the neighbors on some nights are extremely noisy. If I could noise-isolate my bed, that would be a huge quality of life improvement. I was thinking about putting some noise absorbing material under the bed feet and a large noise blocking curtain over it. Like a baldachin or canopy bed. Do you guys think that would work?
亲历分享气球靠近耳朵产生静音区的亲历观察和猜想
跑题一下：有没有人注意到普通派对气球似乎有被动降噪效果？把气球靠近耳朵约一英寸时会有一个‘死寂区’。我的猜测是声音穿过橡胶外壳时产生了相位延迟或反转，但也可能只是我的心理作用。
jcims查看英文原文
Apologies for the ADHD induced tangent. Has anyone else noticed that regular little party balloons seem to have a passive noise cancelling effect? If you bring them close to your ear there's a zone of 'dead air' when they are maybe an inch away. My theory was that there's something in passing through the rubber envelope that creates a phase delay or inversion, but it could just all be in my head lol.
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