Compare the Best Noise-Cancelling HeadphonesFebruary 2019

Noise Cancelling

Noise cancelling technology is an important addition of on-ear headphones, and one that has improved drastically in recent years. First off, it’s important to note the difference between active noise cancelling, and passive noise insulation. Closed-cup on-ear headphones and well-fitting monitors provide noise insulation - i.e. they block external noise from reaching your ears and disturbing your music. This is passive, and depends largely on the fit of your headphones.

Active noise cancelling is far more interesting and complicated, but here’s a brief rundown. At it’s most basic, sound is a pressure wave with peaks and troughs - the exact makeup of this wave denotes both the sound and the loudness of the noise. Noise cancelling headphones use a tech known as ‘active noise control’ - they monitor the external noise coming into the headphones, and generate a pressure wave with exactly the same volume, but completely opposite peaks and troughs (known as ‘antiphase’). When these two waves combine, they effectively cancel each other out, leading to silence - a process called interference. This allows noise cancelling headphones to entirely block out all external noise, leaving you to enjoy music free of absolutely all external distractions.

While an excellent addition, there are a couple of caveats to noise cancelling headphones. First off - because of the microphones and extra tech required, it is only found in larger on-ear headphones, not earbuds or in-ear monitors. Secondly, the tech requires a sizeable power draw, meaning that noise-cancelling headphones normally require batteries (or a recharging internal battery) to function. Finally, the tech is still relatively new, and thus confined to the top-tier headphones, meaning you’re going to be paying a premium for it. However if you frequently struggle to listen to music in high-noise areas (such as the Tube or on planes), this expenditure may well be worth it to be able to hear your music again!

In-ear headphones: These are smaller headphones, means to be placed into your ear. They usually have no band, and are designed to hang down from your ears. They are two main sub-categories of in-ear headphone:

• earbuds (which are placed in the entrance to the ear)
• in-ear monitors (which have rubber or foam caps, and are pushed directly into the ear canal. When inserted, the the rubber expands to create a tight seal inside the ear canal, meaning outside noise is blocked out)

Earbuds are the easiest headphones to wear, though let in a lot of noise and aren’t very stable - they can easily fall out of your ears while moving (especially jogging). Monitors, on the other hand, block out a lot of noise and provide a louder overall volume - making them best for public places or loud backgrounds. However, the act of pushing the foam caps into your ears can feel awkward, and requires some trial-and-error to find the best size/shape of caps. The end result may well be worth the perseverance - monitors allow for a far better overall sound quality, with less invasive noise to ruin your music.

On-ear headphones: These types of headphones are bigger than in-ear models, and are designed with 2 speakers linked by a headband to keep them in place on your head. They are two main sub-categories of on-ear headphone:

• on-ear headphones: these headphones sit over the entrance to the ear, directing sound into your ears. They normally have limited cushioning, but are normally light, so easy to wear for long periods. These are normally the cheapest style of large headphones, but you sacrifice the noise insulation and superior quality of over-ear models.
• over-ear headphones: these types of headphones are larger, and actually encompass the entire ear - covering the whole ear so as to block out all other noise. This gives them excellent sound quality, but they are normally the most expensive type of headphone, due to their size and the amount of padding used to keep them comfortable pressing against your ears and head. Also, because they encompass the whole ear, many people find their ears can get uncomfortably hot and sweaty after wearing for a long time - meaning a break might be necessary every once in a while.

Over-ear headphones generally have the better sound quality, due to larger drivers and better noise insulation. However they are bulkier, more expensive, and may simply be more heavy-duty than many people need, especially if you’re just going to listen to music while you commute or at your desk. On ear headphones are lighter, and provide a good mid-point between the power of large cans, and the simple light ease of earbuds. Their quality isn’t the best though - they are very much the jack-of-all-trades of headphones. Which may be all you need!

Closed ear cups are solid cups that fully encompass the ear, letting no noise in or out. This makes them excellent for noise insulation, and they will not only block outside noise from disturbing your music, but will stop your music from leaking out and disturbing everyone around you. The downside is that the sound quality is slightly lessened by closed cup - it gains an echoey quality and some people feel that music sounds more dead and flat.

Open ear cups have perforated cups surrounding the driver unit, meaning that air can freely flow in and our of the headphones. This helps give the music from the cans a more natural feel - it doesn’t feel projected right into your eardrums, but instead as if it is more naturally coming from around you. However the main disadvantage is that you will have little insulation from all the noise around you - meaning loud surroundings will interfere with your music. This goes both ways - your music will also ‘leak’ more, and will be heard by people around you. Depending on your surroundings and who is around you, this might not be a beneficial thing - not everyone wants to listen to atonal screamcore death metal at 10am in a library!