Short video below showing how the small latex air pump attached to the side of aluminum plate with air lines connected to air bladders forces the ear noise reduction muffs to seal around the ear when air is forced into bladders. The aluminum flat plate represents the helmet shell. Velcro is stuck to inside of aluminum plates and Velcro is stuck to the latex bladders and ear muffs to hold muffs in place.
Information about noise reduction videos
Play it in full screen mode. All videos are recorded in 720P. It may take a little longer to download videos properly. Videos will be more effective if you have remote speaker system attached to your computer so you can turn the volume up to high decibels to simulate what the rider is hearing when wearing a standard helmet versus a Quiet Ride Helmet.
Rider squeezes the air pump to pump up the latex bladders between the ear noise reduction muffs and the inside of the helmet shell. Note the noise reduction and the ability to hear the music above four wheeler sounds. At several points in video air pressure is released and four wheeler noise can be heard again.
An irritating video of person revving up chain saw to 8,000 rpm’s or more and fumbling with the air pump and pushing the button to turn on the radio. The purpose of the video is to demonstrate that you can still understand conversation on the radio and listen to music with outside chainsaw noise of 110 decibels. Exterior chainsaw noise is reduced to approximately 82 decibels inside the ear muff. Helmet speaker volume in the ear muffs set at 86 decibels. The helmet wearer can understand conversation and listen to music.
Rider sits on 2006 noisy Apex while idling and wearing a Quiet Ride Helmet. Rider pumps up the air bladders situated between the ear noise reduction muffs and the inside of the helmet shell forcing the ear muffs to seal around the ears, thus reducing the exterior sound around 65%. The remote microphone shown in earlier picture is in one ear muff and connected to a digital recorder in rider’s pocket recording the noise reduction experienced when the ear muff seals around ear.
Rider repeating video on Apex, but he’s adding music from the intercom to demonstrate the ability to listen to music with little outside noise interference.
Demonstration of noise reduction while riding 1997 Yamaha Grizzly 4-wheeler around the yard while wearing a Quiet Ride Motocross Helmet. First rider goes around the yard without the ear muffs sealed around my ears, the second time around yard with the ear muffs sealed around ears demonstrating 65% noise reduction. The third time around music from speaker located in ear muffs is turned on. With exterior noise reduced in ear muff by approximately 65% music is easy clear.
Rider is revving up old Suzuki RM125 in yard. Music can easily be heard with the helmet speaker in the ear muff when the ear muffs are sealed around the ears which blocks the exterior noise from the engine. You can see the line from the digital recorder that has a small remote microphone in the ear noise reduction muff over the right ear.
Videos 7 & 8
These videos were taken off YouTube. I reduced the sound in portions of each video using a sound editing program and the sound level meter device. Sound was reduced in various sections of YouTube videos by 18 decibels… which is approximately a 65% noise reduction.
A Skidoo and Polaris are racing across a lake. Note in beginning portion of the video the remote video camera attached to side of one rider’s helmet accurately picks up engine noise from snowmobile… approximately 86 decibels as the snowmobile accelerates. When the snowmobile gets close to 65 mph the engine noise disappears as the wind noise decibels going by the video camera microphone increases above 86 decibels to approximately 103 decibels, drowning out the engine noise.
According to OSHA research, motorcycle riders who allow wind to slide by their ears without protection from wind experience noise decibels of 103 decibels at 65 mph which over a period of time will damage hearing.
In the video I have electronically decreased the noise decibel level by 18 decibels to approximately 85 decibels in several sections of video to simulate safe decibel levels that would be heard by a rider wearing a Quiet Ride Helmet.
There are many videos of turbo charged snowmobiles climbing mountains out west in deep snow. Many of these snowmobiles produce decibels in the 110 to 120 decibel range which, according to OSHA, is way too loud to listen to for any extended period of time without damaging hearing. This video represents one the most obnoxious, manly, and macho videos on the internet featuring a dangerously loud Apex with a turbocharger. I have electronically edited portions of the video sound down 17 decibels to approximately 93 decibels to demonstrate what 65% noise reduction of this wild Apex would sound like wearing a Quiet Ride Motocross Helmet.
Rider cruises around yard on 2013 KTM 450 SX-F without pumping up bladders behind ear muffs. The ear muff pads have not sealed out exterior noise. Rider experiences normal crisp 4 cycle motorcycle noise as recorded by video camera microphone. Second time around yard rider pumps up air bladders behind ear muffs to seal ear muff pads around ears removing 65% of outside noise entering ears. Sound on video has been switched to microphone in one ear muff in helmet. Noise from engine decreases by about 65% and remaining engine noise is muffled and high pitch sounds are gone. Third time around yard rider turns on music that can be heard very clearly with so much exterior noise removed by Quiet Ride noise reduction muffs in helmet.