Article View: sci.physics
Article #7733Re: noise cancellation
From: Rodent of Darkness
Date: Mon, 20 Mar 1989 18:54
Date: Mon, 20 Mar 1989 18:54
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1367 bytes
In article <7996@ihlpf.ATT.COM> gmark@ihlpf.ATT.COM (Stewart) writes: >Which leads me to believe that one might design headphones >[...] approximating the quality of the human ears [...] But, >it should minimize noise quite a bit. Disclaimer: I hacked up the quote quite a bit, so it may not reflect Stewart's opinion. I have one question about this noise cancellation. If you only cancel the noise that somone can hear, then wont his `ears relax' (analogous to pupil dialation) allowing the unhearable noise to cause lots of damage? Also to cancel very loud noises you need to generate very loud counter noise. What happens when your hardware fails resulting in additive noise? Last of all what does this have to do with sci.math? ---TS
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!bloom-beacon!oberon!ucla-cs!mahimahi!vermaReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!bloom-beacon!oberon!ucla-cs!mahimahi!verma From: verma@mahimahi.cs.ucla.edu (Rodent of Darkness) Newsgroups: sci.physics,sci.math,sci.electronics Subject: Re: noise cancellation Keywords: anti-noise Message-ID: <22023@shemp.CS.UCLA.EDU> Date: 20 Mar 89 18:54:50 GMT References: <723@wucs1.wustl.edu> <7260@fluke.COM> <453@corpane.UUCP> <7996@ihlpf.ATT.COM> Sender: news@CS.UCLA.EDU Reply-To: verma@mahimahi.cs.ucla.edu (Rodent of Darkness) Organization: UCLA Computer Science Department Lines: 22