Society of Robots - Robot Forum
General Misc => Misc => Topic started by: sky016 on November 21, 2010, 01:57:30 AM
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Hi, does anyone know iritating sound frequency that we can't hear but we response on it?
So you don't hear it but it's anoying for ears?
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I think sounds are only irritating if you actually hear them. There are some frequencies that only irritate certain people (e.g. young people can hear and be annoyed by high frequencies that older people cannot here), but it doesn't sound like that is what you're asking about.
- Ben
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Judging by this Wiki, (http://en.wikipedia.org/wiki/The_Mosquito) I'd say somewhere between 17.4kHz and 8kHz.
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Hi,
Hi, does anyone know iritating sound frequency that we can't hear but we response on it?
So you don't hear it but it's anoying for ears?
You might wanna be more precise in what you ask about.
The short answer to your question is no, there are no sound frequencies that annoys the ear or get us to respond, if we cannot hear them!
However, there are low frequencies that you don't hear that can make you nauseous when "played" at relatively high power. But I guess that isn't what you ask about.
Auditive sound will have certain frequencies that peaks (resonates with the folds of the outer ear) and sounds higher than other sounds, when reaching the ear with the same Sound Pressure Level (SPL). This will be different frequencies for each person, bit in general, the ear has a resonant "amplification" of a range around 3kHz.
Does your question relate to robotics?
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Yeah - super low frequency can make you want to throw up - they did that to the audience at a 2NU concert I went to years ago :-)
Depending on how "annoying" you want to be - how about messing around with noise-cancelling? If you can control the accoustics of the room the people are in - placing some microphones and speakers around, and amplifying the opposite of what you pick up will "cancel out" sounds in certain places around the room... I would be pretty annoyng to try an have a conversation with someone if their voice kept going silent without explanation:-)
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sub sonic sounds can be unsettling, i recall an article about a haunted room in an office block somewhere, peeps just didn't like working there they traced it to low frequency sounds from diesel generator or electric substation....something like that (part of sick building syndrome, noise,light,things in the environment that signal danger unintentionally, floor patterns, shape of the printer, wrong kind of clutter)
also very quiet sounds, in the human speech range, barely audible can trigger an unsettling response...edge of perception
you brains picking up and trying to tune into it, give u the feeling of not being alone..i dunno
something along the lines of these two, perhaps in combination could spoil the party atmosphere...sorry i cant be more specific
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Humans do have a kind of ESP , to clarify , we are effected by stimuli that we are not consciously aware of. Stimuli has to reach a critical level before the "you" recognise it......."hey man I'm picking up bad vibes about hits place, but i cant put my finger on it"
anything on the edge of perception can have a positive or negative influence on us, without us actually being aware of
it
some people are sheep, and it will go over their heads, others are highly sensitive, tune and will become aware of the sounds....we are not all equal in that respect, some peeps are thicker skinned and slow to respond. Both characteristics have a fitness value & a place in society. which group do you want to annoy ? it will be hard to annoy everyone with being detected , children and women are slightly more sensitive to sounds, older men less so
also situation and focus play a role
Test Your Awareness (http://www.youtube.com/watch?v=UfA3ivLK_tE#)
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ok, firstable thanx all for responding on my topic :)
group of us is trying to figure out frequency that we hardly hear but it's enough to make us nervous or relax us....so if anyone figures put please post it here thanx :)
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download audacity , u can mess with sounds in it , extra plugs in are available, if i recall u can change the speed a sound plays at with out altering the pitch m as well as classic pitch shifting
http://audacity.sourceforge.net/ (http://audacity.sourceforge.net/)
experiment, there is no a,b,c answer to your questions