The Sony Xperia Z2 comes with built-in active noise cancellation. Here is how it works
However, while surrounding noise is difficult to kill off entirely, it is possible to reduce its level to a great extent through the use of a clever algorythm known as active noise cancellation. This fundamental technique is used in premium noise-eliminating pairs of cans. But it is also what enables the Sony Xperia Z2 smartphone to "reduce up to 98% of the ambient noise" when paired with Sony's light and compact MDR-NC31EM earphones.
Active noise cancellation – the noise sound wave (1) is cancelled out with an inverted noise sound wave (2)
On a side note, while checking out the Sony Xperia Z2 at MWC 2014, we had the chance to personally test the effectiveness of Sony's noise cancellation tech. We can confirm that it works not only in theory, but in practice as well. Just keep in mind that results may vary depending on your environment. Noise that is too loud will be harder to reduce, and high-pitched sounds could be also tricky to eliminate.
The Sony Xperia Z2 lets you enjoy active noise cancellation with the Sony MDR-NC31EM earphones
If you're wondering how Sony has managed to put active noise cancellation in a pair of earphones so small, then allow us to elaborate on the matter. You see, a stand-alone active noise-cancelling headphone set usually has a battery and a digital signal processor built into it. These extra components, obviosly, take up some space. The Sony MDR-NC31EM earphones, on the other hand, don't have a built-in battery or any DSP circuitry inside of them – sound processing and battery power are provided by the device they are plugged into. This, supposedly, has also made the headset much cheaper to manufacture.
After reading all this, some of you are probably wondering whether or not Sony will bundle a pair of noise-cancelling earphones with each Xperia Z2 and Xperia Z2 tablet. Unfortunately, we can't give you a clear, universal answer since this will vary from one market to another. In some countries, the two devices will come with a Sony MDR-NC31EM out of the box, while in other markets, the headset will be offered as an optional accessory.
The Sony MDR-NC31EM headset provides active noise cancellation when used with the Sony Xperia Z2. It is light, compact, and wearing it won't mess up your hair
1. PapaSmurf (limited) (Posts: 8300; Member since: 14 May 2012)
I'm curious to test them out in person. One drawback I have is leeching power from the battery life.
5. istitch (Posts: 164; Member since: 19 Mar 2013)
Can't be sure if it's actually a drawbrack, the power consumption might be fairly low and negligible
7. PapaSmurf (limited) (Posts: 8300; Member since: 14 May 2012)
Noise cancellation would put a strain on the battery. Hopefully Sony optimized everything correctly so it isn't a worry.
11. JMartin22 (Posts: 1029; Member since: 30 Apr 2013)
Don't hold your breath, Sony is among one of the least optimized experiences you can ask for.
15. PapaSmurf (limited) (Posts: 8300; Member since: 14 May 2012)
Lol I didn't want to be 'that guy,' but they're the worst when it comes to optimization.
14. Charlie_boy (Posts: 58; Member since: 04 Jan 2013)
awesome? I agree. but it looks like sony is getting a page out of HTC's and Beats' books.
Front facing speakers and now noise cancellation headsets.
(not sure if it's a coincidence, but I used to own an HTC, now I own a Sony). Let's hope Sony succeeds with the marketing where HTC has failed....
3. HTCOE (Posts: 470; Member since: 20 Nov 2011)
no but a great feature and wish htc would've went with bose instead of beats during it's earlier times...but the sony phone seems to be impressive with what it packs...i just hope the screen isn't washed out and feels confortable in the hand...i did'nt like the brick feel from the previous models...looking forwared to the one plus and iphone 6.
6. emadshiny (Posts: 1131; Member since: 05 Dec 2012)
I think Z2 has one of the best screens so far and the issue of washed out colors is totally solved.
8. Felix_Gatto (Posts: 488; Member since: 03 Jul 2013)
Sony should have release Walkman smartphone and also Cyber-Shot smartphone to attract more people.
12. JMartin22 (Posts: 1029; Member since: 30 Apr 2013)
They could stick a DSLR in it and I still wouldn't buy it. A new handset from them would just predate it in a couple months.
19. ArtSim98 (limited) (Posts: 2738; Member since: 21 Dec 2012)
So you admit that you're a blind hater of Sony? Piss off man
13. imparanoic (Posts: 66; Member since: 15 Oct 2012)
I have this on my 2009 nwz-x1050 Walkman, it works like a treat, most exterior sound are cancelled ie, aircraft, train, machinery,
18. janekkubek (Posts: 14; Member since: 10 Mar 2014)
Thats cool, but what about music purity? Isn't it obstructed by this "antiwaves"?
16. Lauticol (Posts: 195; Member since: 25 Jun 2011)
The drawback in this, is that other people can hear loudly what you're listening to!
20. docxx (Posts: 63; Member since: 27 Feb 2014)
Not at all!!
For instance in the plane or train the volume required is much lower due to the noise cancellation, therefore the contrary is true.
23. techperson211 (Posts: 618; Member since: 27 Feb 2014)
Good job sony!!! By the way htc's beats is not the first noise cancelation device . Ever heard of Walkman phones by sony ericcson ?
24. mixedfish (Posts: 107; Member since: 17 Nov 2013)
"Currently, only the Sony Xperia Z2 and the Xperia Z2 Tablet support active noise cancellation with this particular earphone set,"
Incorrect, these earphones have been out for over 2 years now and have already been included and supported on Sony's Walkmans since the F800.
Also I have these, they work as advertised, you just need to select the profiles: plane, train, office to best fit your situation and maximise the cancellation.
25. Karriope (Posts: 95; Member since: 07 Jun 2013)
This is painfully useless to me because I wont accept much else than my XBA-3 earphones.