Sound systems may prevent deer collisions!

[cloud77 28]

I have always had a decent sound system set up in my vehicle and have been driving for 11 years mostly in the area of Cleveland, OH. We have a high population of white tail, as in many other areas in the Northeast region. Deer have become a nuisance to drivers, as a collision may cause serious damage to your vehicle and possible injury, or death. I always noticed that when I had the woofers turned up at night and exceeding 35 mph, white tail deer reaction to the stimulus of sound was not to fleed, but to remain still on the side of the roadway. I decided to do some research, and possibly try to determine the cause of low and high foreign sounds for a deer to react this way. Keep in mind this is a hobby, (I'm not just bored) as I am a Biology major at my University.

White tail deer have a very keen sense hearing, with the ability to rotate their ears to pinpoint the location of sounds made in their environment, and possibly detect a threat to their survival. (Hunters should relate to this as sometimes they sound proof their equipment.) In 2008, research and studies done by Dr. Gino D'Angelo went against common thought that deer can hear much more extensively than humans. Of course we car audio enthusiasts know that audible sound waves are measured in hertz, or frequency. the human ear can hear frequencies from 20-20,000Hz. (boom) Our best and most sensitive range of hearing is in the 3000-5000Hz range as this is the range in which communication and conversations occur. Deer on the other hand, supposedly, can hear at best frequencies of 3000-8000Hz. So while true that deer hear optimally at a much higher frequency range than we do, their vocalizations generally are in the same range.

Now there there has been a multi-milion dollar industry created revolving around a product to try and prevent deer collisions. Deer whistles, or deer alert systems, attach to the bumper of a vehicle and play a high pitched frequency around 20,000Hz when your vehicle exceeds 35mph. Manufacturers advertising for these such products claim that ultrasound, is created by these whistles as air passes through them. Keep in mind ultrasound is a cyclic sound pressure wave with a frequency much greater than the upper limit of human hearing ability. Now the general effectiveness of these whistles is inconclusive due to conflicting reports available.

Ok. As we know a subwoofer creates lower end frequencies.(some have the ability to produce lower frequencies than others) A low frequency sound wave has a longer wavelength than higher frequencies, and travels farther than high frequencies, with a shorter wavelength property. These shorter wavelengths are more easily absorbed by the molecules in air, hence why they cannot travel as far as low frequency sound waves.

My theory:

I believe that the reason a deer will just react in this such way while I'm bumpin' by them with some chopped and screwed, (wildlife demo) is that deer can in fact make these low frequencies audible to them; and at the same time, these frequencies are more foreign than any noises heard throughout their endeavor to survive and have no familiarity with these sounds. (of that 32Hz tuned slot port) So they hear you coming down the road rockin' out.......( Deer: "Wtf?" ) then they hear some "tisk tisk tisk" as you're bad ass four channel is got those vocals screaming...maybe when they hear these higher frequencies they are more alert in their sensivities to these frequencies and to avoid miscommunication between them and their environment, they pause, as they clearly know you are a moving vehicle now. (Although they have smaller brain casings than us humans, I'm sure they learn and adapt when their best friend gets plowed by a 16-wheeler.) (gore everywhere)

I have hit a deer once in my driving experience. It was around this time of the year and occurred at dusk. (the most collisions occur at this time simply to lack of vision and ability to brake accordingly) I in fact, did not have my stereo on at the moment and was not making any audible noises from my speakers. (except alternator whine lolz) j/k This study may be as simply put that deer do not like dubstep, therefore give you the gangsta stare down; or this may be more complex in the manner that deer can determine changes in the environment through the kinetic energy placed into the air, and the combination of high and low frequencies grabs their attention, not scaring them. Example: If deer are as they say they are, "color-blind", they may have evolved advanced hearing techniques under natural selection to compete successfully in their environment. Ex. weather detection from wind intensity, thunder, exc. or the ability to label and react to certain frequencies to you and your hunting equipment despite of that orange vest you're wearing.

-"Deer Demos" by Greg Novicki

Sources:

http://www.mnbowhunt...er_hearing.html, 2008

[altoncustomtech 773]

LOL.... I have to agree. Out here in the middle of nowhere we have deer running around everywhere. My wife says on many many occasions that the system in her van is the best deer horns we've ever had, lol.

[PistolPete94 1]

Ahaha great read! Thanks for that man. Deer dont like dubstep!

[KyleBrown 121]

so in short, play skillex with external horns?

[cloud77 28]

so in short, play skillex with external horns?

Lol. Yes!

[pmureika 31]

I have driven 32 years on the job in south west michigan and have never hit a deer with just the stock system in it

2500 series gmc van.

[ulrisa 26]

Lol, I have thought this so many times. I live in Maine and in my years of driving I have not even come close to hitting a deer with my system installed.

[cloud77 28]

I have driven 32 years on the job in south west michigan and have never hit a deer with just the stock system in it

2500 series gmc van.

Not a contribution to my research.

[krb1991 6]

Sweet man im in mansfield.. Only an hour from cleve.. Im sick of hitting deer...ugh... Fml

[cloud77 28]

Sweet man im in mansfield.. Only an hour from cleve.. Im sick of hitting deer...ugh... Fml

Turn the bass up bro

[cloud77 28]

read this!

[cloud77 28]

Hit a deer with no bass rolling like 2 months ago.  So I thought of this post.

[dyukduken 0]

Ahaha great read! Thanks for that man. Deer dont like dubstep!
 

[///M5 2,833]

Best and only proven method to avoid deer is to pay attention to the road.

[Randal Johnson 544]

Too bad I can not install a bass system in my work truck ... LOL

I work at night, so I see deer on the sides of the road ALL of the time ...

[Cruz87 30]

I have always had a decent sound system set up in my vehicle and have been driving for 11 years mostly in the area of Cleveland, OH. We have a high population of white tail, as in many other areas in the Northeast region. Deer have become a nuisance to drivers, as a collision may cause serious damage to your vehicle and possible injury, or death. I always noticed that when I had the woofers turned up at night and exceeding 35 mph, white tail deer reaction to the stimulus of sound was not to fleed, but to remain still on the side of the roadway. I decided to do some research, and possibly try to determine the cause of low and high foreign sounds for a deer to react this way. Keep in mind this is a hobby, (I'm not just bored) as I am a Biology major at my University.

White tail deer have a very keen sense hearing, with the ability to rotate their ears to pinpoint the location of sounds made in their environment, and possibly detect a threat to their survival. (Hunters should relate to this as sometimes they sound proof their equipment.) In 2008, research and studies done by Dr. Gino D'Angelo went against common thought that deer can hear much more extensively than humans. Of course we car audio enthusiasts know that audible sound waves are measured in hertz, or frequency. the human ear can hear frequencies from 20-20,000Hz. (boom) Our best and most sensitive range of hearing is in the 3000-5000Hz range as this is the range in which communication and conversations occur. Deer on the other hand, supposedly, can hear at best frequencies of 3000-8000Hz. So while true that deer hear optimally at a much higher frequency range than we do, their vocalizations generally are in the same range.

Now there there has been a multi-milion dollar industry created revolving around a product to try and prevent deer collisions. Deer whistles, or deer alert systems, attach to the bumper of a vehicle and play a high pitched frequency around 20,000Hz when your vehicle exceeds 35mph. Manufacturers advertising for these such products claim that ultrasound, is created by these whistles as air passes through them. Keep in mind ultrasound is a cyclic sound pressure wave with a frequency much greater than the upper limit of human hearing ability. Now the general effectiveness of these whistles is inconclusive due to conflicting reports available.

Ok. As we know a subwoofer creates lower end frequencies.(some have the ability to produce lower frequencies than others) A low frequency sound wave has a longer wavelength than higher frequencies, and travels farther than high frequencies, with a shorter wavelength property. These shorter wavelengths are more easily absorbed by the molecules in air, hence why they cannot travel as far as low frequency sound waves.

My theory:

I believe that the reason a deer will just react in this such way while I'm bumpin' by them with some chopped and screwed, (wildlife demo) is that deer can in fact make these low frequencies audible to them; and at the same time, these frequencies are more foreign than any noises heard throughout their endeavor to survive and have no familiarity with these sounds. (of that 32Hz tuned slot port) So they hear you coming down the road rockin' out.......( Deer: "Wtf?" ) then they hear some "tisk tisk tisk" as you're bad ass four channel is got those vocals screaming...maybe when they hear these higher frequencies they are more alert in their sensivities to these frequencies and to avoid miscommunication between them and their environment, they pause, as they clearly know you are a moving vehicle now. (Although they have smaller brain casings than us humans, I'm sure they learn and adapt when their best friend gets plowed by a 16-wheeler.) (gore everywhere)

I have hit a deer once in my driving experience. It was around this time of the year and occurred at dusk. (the most collisions occur at this time simply to lack of vision and ability to brake accordingly) I in fact, did not have my stereo on at the moment and was not making any audible noises from my speakers. (except alternator whine lolz) j/k This study may be as simply put that deer do not like dubstep, therefore give you the gangsta stare down; or this may be more complex in the manner that deer can determine changes in the environment through the kinetic energy placed into the air, and the combination of high and low frequencies grabs their attention, not scaring them. Example: If deer are as they say they are, "color-blind", they may have evolved advanced hearing techniques under natural selection to compete successfully in their environment. Ex. weather detection from wind intensity, thunder, exc. or the ability to label and react to certain frequencies to you and your hunting equipment despite of that orange vest you're wearing.

-"Deer Demos" by Greg Novicki

Sources:

http://www.mnbowhunt...er_hearing.html, 2008

Lmao funny but Great to know, DUBSTEP STANDOFF

[cloud77 28]

lol.

[cloud77 28]

bass keeps the deer away!

[cloud77 28]

been seeing a lot of deer now that I'm not thumpin'

[///M5 2,833]

Nice sugar pill you swallowed

[Thumpper 266]

  not much of a beleiver

about a month ago I was on my sunday morning thump a thon and a white tail leaped out of no where and did a power

slide on the passenger front quarter panel , did a spin a roonie on 3 leges ( with one leg collapsed and on his face )

got up looked at me when I stopped to check for damage and limped away

 

no damage to my car ....LOL