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Everyone knows that when you listen to the same music through different headphones there are differences in how the music sounds. This is due in part to what is referred to as “sweetening”. The term “sweetening” refers to the EQing of the headphones. EQing makes the music sound better. For example, in open-backed headphones the bass frequencies may be emphasized to compensate for the natural leakage of bass. Almost all consumer headphones are “sweetened” in one of two modes including FF (free field) and DF (defined field) sweetening. FF sweetening simulates an open listening environment. DF sweetening simulates an enclosed listening environment. For those who have critical listening needs, such as monitoring a mixing of music, you want to find headphones that don’t have any sweetening. These headphones have what is called a flat frequency response. The flat frequency response allows you to compare and set the levels of your headphones manually.
Many of today’s noise cancelling headphones feature “active” noise cancelling properties. While these headphones provide great noise cancelling properties, they aren’t always practical – especially when you need a lightweight portable design. That is where high passive attenuation of ambient noise is needed. Passive noise cancelling headphones are lightweight and more portable than active noise cancelling headphones. Passive noise cancelling headphones use high passive attenuation of ambient noise in order to block sounds from the outside from reaching the listener’s inner ear when he or she is listening to the headphones.
When individuals think of drivers, it’s usually computer hardware that comes to mind. The truth is that headphones use drivers too. Also referred to as moving coil drivers, headphones that use drivers use a static magnetic field and a moving diaphragm to create sound. The diaphragm is attached to a wire coil that allows current to create the alternating magnetic field that is required to move the diaphragm up and down. This, interacting with the magnet, is what creates the sound waves that create the music.
Headphone drivers come in different sizes and you will notice that the bigger the headphone driver is, the better the sound quality will be. For example, if you are looking at a pair of headphones with a driver size of 40 mm, it will not provide you with as much sound quality as headphones with a driver size of 50 mm.
Those who are looking for the ultimate in high-end earbuds may be interested in the newer ceramic technology. Some higher-end manufacturers are creating earbuds that have ceramic casings. This provides increased durability along with superior noise-cancelling effects.
The average human hears between frequencies of 20 Hz and 20 kHz. So why do some headphones boast a high-end rating of 30 kHz or above? In all honesty, it might provide you with a better sound experience if you have better-than-average hearing. In all truth, chances are you won’t be using all of the frequency your headphones offer (unless you’re a superhero) if your headphones’ frequency is greater than 30 kHz on the high end.
Today’s market offers a number of wireless headphones. These headphones are great for consumers who want to watch television in bed without disturbing their partners or want freedom to move around the house while quietly listening to their entertainment system. In the past it is true that these headphones may not have produced the sound quality that headphones with wires would have, but technology has changed. Today’s high-end wireless headphones can create quality sound just as well as any wired headphones can. How do these headphones work?
Wireless headphones that utilize infrared transmissions have a built-in transmitter that connects to the audio source’s headphone jack (or other output). The infrared transmission works by sending out signals of infrared light to the transmitter inside the headphones from the transmitter in the jack. The only downside to this technology is that the headphones must be within the line-of-sight of the transmitter when they are in use. If the headphones are not in the line-of-sight of the transmitter, the signal will be lost because it cannot pass through walls and other solid objects.
There are wireless headphones that work on RF transmission rather than infrared transmission. These headphones use a radio frequency to transmit the signal from the headphone adapter to the headphones. However, while these headphones may provide a greater range of movement than headphones with infrared transmitters, the frequencies can become distorted due to interference and affect your listening experience.