[SWLUG] Noise abatement
dmdrummondx at gmail.com
Sun Aug 30 22:56:18 UTC 2009
plebs.col at virgin.net wrote:
> Is there software or a device that will hear sound and generate the
> sound cancelling sound so that sound presently attacking can be
> cancelled? The interesting thing is that the cancelling noise that will
> stop noise coming this way will confuse noise that has not got here
> yet. Might persuade the generators to stop.
Yes, noise-cancelling headphones are available in shops everywhere. I
also remember hearing of this technique being used to reduce engine
noise heard inside a car.
> Anyone know what is being writ about and have suggestions? There is
> some info in http://openlearn.open.ac.uk/mod/resource/view.php?id=285748
> Any hope of a Jericho trumpet that will quarry stone?
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