A Mantrip is what they use to transport workers in and out of coal mines. Recently, a law was introduced that required equipment to be modified or replaced if it would expose workers to high noise levels for long time periods. Alpha Services Inc of Illinois, came up with the perfect solution. VORTEX!

According to Ty Elliott, prior to Vortexing the roof, top and bottom the inside and complete understructure of the Man Ride, the decibels would hit 168 Db. After Vortexing, the decibel level dropped instanly to an amazing 96 Db with the use of Vortex.

That Annoying Noise

One thing that can be very frustrating to any driver, is the amount of noise that they experience on the road. Most people have had the experience of having trouble hearing your phone, or having to turn your radio louder as you get on the highway. Some car makers actually include a feature that increases the stereo volume as your speed increases. While some vehicles are better than others, every nothing is perfect.

How It Works

Sound is a wave of pressure that travels though the atmosphere (a vibration). If a sound wave oscillates faster, we perceive a higher pitch. As a sound wave increases in amplitude, the perceived volume increases. What this means is, if something in your vehicle is vibrating, and it passes the vibrations on to other parts of your vehicle, there is going to be more vibrating area to act on the atmosphere. The bigger atmospheric disturbance (amplitude), is what gives you more noise.

Now What?

One thing you can do is change to a less aggressive tire, this can reduce some of the initial vibrations by putting riding on a smoother surface. The downside of a smoother tire risking decreased performance, in rainy or snowy conditions. For any off-road enthusiast, you can kiss the trails goodbye.

If you want a quieter ride without sacrificing your choice in tires. There is another way to soundproof you vehicle. If you drive a truck, the large metal surfaces of the bed conduct a lot of vibrations. Putting a Vortex liner in the bed will absorb these vibrations and quite the road noise of your truck. Vortex also works great in wheel wells to keep noise down.

With your new sleek looking, sound deadening, ultra protecting Vortex Liner, you will hear every detail of your favorite New York Philharmonic piece on your way to work, and you wont miss a word of how much your mom misses you (with a hands free headset of course) on you long drive to college.