Posts Tagged ‘Technology’

My Noise Canceling Headphones

Thursday, October 8th, 2009

It seems like a simple idea and often times simple ideas are the best ones. Build a set of noise canceling headphones that physically reflect noise away from your ears.

Most popular noise canceling headphones use electronics to cancel sound. The electronics involved in these battery operated noise canceling headphones like the Bose QuietComfort headphones or Sony headphones are certainly interesting to read about. In a nutshell, they sample the noise around you and then attempt to produce an “opposite” sound wave inside the ear cups to cancel the unwanted noise. To accomplish this, these headphones have a little computer in them that runs off a set of batteries. This is all great EXCEPT there are a bunch of “hidden” problems with this type of headphones.

My Problem With Most Noise Canceling Headphones

I’ve tried a bunch of headphones before realizing that most of these noise canceling headphones all work the same way. I HATE the way the tend to destroy the bass tones in your music. Just think about it, if they are putting “canceling” sound waves in your ear cups, some of your music tones are getting canceled out too. That’s no good. Also, if your batteries die then so does your noise cancelation and sometimes, with some headphones, you can’t hear any music at all. A brief list of my problems with most headphones are:

  • You have to keep buying batteries.
  • No batteries, no music.
  • The swooshing noise that the “opposite” sound wave makes in your ears
  • Not good for block voices, phones, dogs, etc.
  • Distorts your music
  • Too expensive

The Best Noise Canceling Headphones

The great news is that I have finally found a great set of headphones that really work! The Direct Sound Extreme Isolation Headphones at QuietHeadphones.com solve all the problems I had been experiencing with the other headphones and I LOVE them. They work by PHYSICALLY reflecting sound away from your ears. They have a slick closed back and are padded with a noise isolation foam and the work by simply stopping sound from reaching your ears. They don’t try to do any fancy calculations, they don’t use batteries, and best of all, THEY WORK REALLY WELL.

There are three different versions of these headphones available. Their best noise canceling headphones are the EX-29 Extreme Isolation Headphones. They block 29 dB of sound and have excellent, studio quality speakers. They also offer a smaller, compact version of these headphones called the EX-25 Extreme Isolation Headphones. The EX-25 headphones are great noise canceling headphones for traveling. They block 25 dB of noise an are smaller making them easy to bring with you when you are on the move. The third version is a speakerless version of the EX-25 headphones which are designed to just block sound. They have no speakers and no cord so you don’t use them to listen to music.

Complete Noise Isolation

Now, a normal conversation is about 60 dB. A crying baby is about 70 dB. And these headphones only block 29 dB of sound so you are still going to hear some background noise if you aren’t listening to any audio through your headphones. But keep in mind that the battery powered headphones out there only block about 17dB. So you are still getting better isolation with these headphones. But there is one more piece of the puzzle.

The folks at QuietHeadphones.com are giving away a FREE 30 minute white noise MP3 that is awesome. It uses binaural beats to promote creativity and concentration. And if you listen to this audio track through your headphones at a low level you can mask out any remaining noise and truly achieve almost complete sound isolation. I guess this why they are called EXTREME ISOLATION headphones. So you get to complete noise canceling package at QuietHeadphones.com and the price is great. Even their most expensive headphones are under $100. This is a fantastic deal compared to the battery powered headphones that can be easily 2 - 3 times more expensive.

I placed my order and the headphones shipped the next day and I had my headphones is just a couple days. They have fast shipping and their customer service is awesome too. Best of all they are offering a 110% money back guarantee. So you really can’t go wrong. Check out their noise canceling headphones, get the free white noise MP3, and finally enjoy some crystal clear music with no distractions.

Noise Cancellation Headphones For College Life

Thursday, August 20th, 2009

It is that time again where people all over the country are getting ready to head off (or back to) college. From time to time you may feel the need to get some peace and quiet, if not for studying then at least to block out the noises from across the hall so you can chill out and listen to your tunes. There are a lot of options out there and some of them are really expensive. I’ve found that the Direct Sound Extreme Isolation Headphones give you the biggest and best bang for the buck.

Like everybody else, I guess I was hoping to find a product that would totally block out all sound. Unfortunately you just can’t pull that off with earplugs or headphones. As a point of reference, an average conversation is about 60dB- 70dB, a telephone dial-tone is about 80dB, a whisper quiet library is about 30dB. I have looked all over the place to try to find the best solution for blocking out sound and it seems like the limit for headphones or earplugs is about 30dB. So, if you just put on the headphones and you aren’t playing any music, you are going to hear some background sound no matter what headphones you get. The Bose QuietComfort headphones appear to be the most popular headphones out there for blocking sound but they only reduce noise by about 17dB. They also cost around $300. For under $100 you can get the Direct Sound EX-29 headphones and they will block 29Db of sound - this is a 70% improvement over the Bose headphones.

So how do you get rid of the remaining noise? Well, I looked into that too. The folks at QuietHeadphones.com include a FREE white noise audio track that is one of the best audio tracks I have ever heard. It is a mixture of waterfall sounds and birds chirping. Their audio track also uses binaural beats to promote concentration and creativity. Binaural beats is a cool concept but, for the sake of this post, I just want to point out that the quality of the White Noise Track from QuietHeadphones.com is very impressive - especially for being free. You can pay $15 or more for tracks like this that don’t sound nearly as good. The White Noise Track is only available as a digital (MP3) download. It is not included on a CD in the box or anything but you can easily make your own CD if you feel so inclined. Most people will probably just put it on their iPod.

There are a couple other models of noise cancellation headphones available form QuietHeadphones.com. For example, they offer the Direct Sound EX-25 headphones as less expensive alternative to the EX-29 headphones. The EX-25 headphones block 25dB of noise which is only slightly less noise reduction but they will save you $40 and are a bit smaller in size. It turns out that the big difference between the two models is not the amount of noise reduction but the quality of the speakers in the ear cups. The EX-29 speakers are studio quality and really do sound great. The EX-25 speakers are more of a ‘home use’ version of the headphones. So if you wanted something to wear while you cut the grass or if you wanted headphones for traveling then you may want to get the smaller, less expensive model.

I have never before seen a company offer such an excellent warranty either. They will give you a 6 Month, 110% money back guarantee. This does two things for me. First, it gives me more than enough time to see if the headphones will meet my needs. Second, there is no way they could keep this up if people didn’t like the headphones. So people are clearly pretty satisfied with their purchase. There is also a speakerless version of headphones available but I didn’t try those out. I wanted something I could use with my iPod. So if you are looking for some great headphones at a great value, consider the noise cancellation headphones from QuietHeadphones.com.

Sports to watch from the Direct Tv deals

Thursday, July 30th, 2009

After work I do have a rest at home while watching informative shows, like news and reference shows. But when the time that I had avail of the cable service of the Direct tv. My days of being a sports fan when i was young, come back. I can now be able to watch any sports games that I been watching before when I was a child until I became a teenager.

After availing for the Venus FL Directtv I can find my favorite games and sports on the television. If before I have to wait till Thursdays come so I can watch the basketball game. For the station only shows the game every Sunday and Thursday. Now anytime that I do switch on the television I can sure to have the sports games, any sports games but sports and more sports that I can be able to watch on their channel.

The direct tv for your television

Wednesday, July 15th, 2009

My brother do now love to watch television because of the DIRECTV. After availing for their service he do now enjoy television shows and spend more time at home than going out to watch movie at the theater for entertainment. With the Tivo and Directv deals and offer watching television would be even better without giving you worries for the cost of their services.
If before you only had a few local channels for you television now there are so many channels that you can choose from while having the DIRECTV service. With their service around you can sure to enjoy that the television programming these days is more even better than the traditional channels on your local areas. My brother also do love their sports channel and music channel. To know more about them, visit their site to find out more.

Learning The Basics Of An Ignition System

Tuesday, May 26th, 2009

The following article has been donated by Tammy Sampson of Everdrive.com, which provides used auto parts, Ford parts, and Honda parts.


The purpose of your car’s monstrous ignition system is to time a spark that ignites gas at the precise moment needed to power your engine. Several different parts work together to make this happen. Your car’s engine is basically a huge pump. Air and gas are pumped in, producing energy that turns the tires and moves the vehicle. That’s an oversimplification, but sufficient for learning how the components of the system work. Below, I’ll briefly describe the parts involved and take you through the process of igniting the gas and powering your engine.

Parts And Their Jobs

Your ignition system is comprised of spark plugs, a distributor (and cap), rotor, and coil. The coil is what transforms an electrical current from your car battery into a spark. When the coil successfully creates a spark (and it needs to be potent enough to actually ignite the fuel), the spark is transferred to your car’s distributor. The reason it’s called a distributor is because it spins and allocates the sparks from the coil to multiple spark plugs. It does that through the rotor.

The rotor spins with the distributor and contacts the cylinders of the engine. When it does this, it transfers the sparks to the spark plug wires. At this point, the spark has nearly traveled to where it needs to be. Each of the spark plug wires is attached to the distributor cap through its own contact point. Those wires send the spark directly to the spark plugs which are mounted in your car’s cylinder head. When the gases from the fuel flow into the cylinder, the spark ignites them, causing combustion.

The process I’ve just described happens over and over, tens of thousands of times while your car is in operation.

A Seamless System

Your ignition system is most effective when the sparks are precisely timed. In the past, this was done by employing a points-and-condenser module to tell the distributor when to allocate the sparks to the spark plugs. Today, most cars are equipped with computers (called ignition modules) that control the timing. They do so by notifying your car’s engine control unit about the placement of the pistons. If an ignition module fails, it’s usually necessary to replace it.

Over the past few years, manufacturers have begun experimenting with “distributorless” ignition systems. Rather than a single coil creating the sparks needed to ignite the fuel, each spark plug has its own coil. That effectively eliminates the need for the distributor. It’s still considered a young technology, but holds significant promise.

Auto repair that I could trust

Thursday, April 16th, 2009

It is an advantage that I do know and have someone that I could trust when it comes to my auto repair. With the service that the auto repair in richmond can be able to provide me. Repair for my car is not a problem. And for me not to experience trouble as I drive on the high way i do make sure that I asked the service for their check up  at mechanic in richmond even the tires are being check from tires richmond. I am worried free even any place that I do visit, I don’t have something to worry when I travel. I am assure that the perfomance of my auto well maintain.

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