According to my understanding of how noise-cancelling headphones work, the headphones detect low-frequency ambient noise levels near my ears, and emit a frequency which cancels out the ambient noise, so that instead I hear silence in place of the noise. Although I can't hear these noise-cancelling frequencies, I'm wondering whether they might be having a cumulative negative effect on my hearing. Is it only audible frequencies that have the potential to harm? Or can prolonged exposure to inaudible frequencies have a detrimental physical effect?
I recently received Bose QC15 noise cancelling headphones, and in my first two days wearing them at work -- periodically, about four hours in total each day -- I've experienced mild headaches and mild nausea. Do people experiencing these symptoms eventually adapt, and the symptoms go away?
I'm currently working in a smallish office where people arrayed around a group of tables chat to each other during the day. I'm hoping to find very comfortable headphones for listening to music (mostly just soft wordless music - my base station is Pandora's 'classical for studying' station) that will let me not hear voices, but also will not leak and be obnoxious for my colleagues. [more inside]
A few years ago I heard a popular scientist on the radio discussing the effects of listening to music via earbud headphones. He said that if someone can hear the music I'm listening to, I am doing permanent damage to my ears. Is this true? I would appreciate reference to any peer-reviewed scientific research on this topic, if available.
I've had enough of all of my Shure in-ear isolating earbuds dying on one side. My right bud died suddenly, and this is the third pair in a row. I've had this pair for less than 6 months. Could you recommend a durable pair of isolating/noise cancelling earbuds/headphones with a few requirements? [more inside]
How can I keep listening to music on the bus without exacerbating my easily irritable skin with earbuds, or causing hearing loss? [more inside]
Noise cancelling headphones for use in a home office with young children around. Comfortable for all day use and not too expensive. Possible? [more inside]
Two questions about noise cancelling headphones: 1) Are JVC HA-NC80s any good?; and 2) Are NC headphones (in general) bad for your hearing? [more inside]
How can I get my noise-cancelling headphones working on my old TV? [more inside] [more inside]