So sánh sony mdr-nc31e và mh1c site sonyfan.vn

They came with my Sony Xperia Z2 phone. On the Z2 they kind of work. I can't hear my colleges talking if I plug them in (without even playing music and that's great).

But however if I use them with other devices the noise-canceling does not work. Are there any drivers for example for Windows? Or is this hardware specific?

fixer1234

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asked Aug 22, 2014 at 7:25

3

It's a non-solvable hardware issue. Sony agrees.

From what i've seen it's a 5-pin jack. One of the pins is dedicated for noise feedback. Your PC probably has only 3 pins.

Noise cancellation requires a digital circuit to measure, process and invert the noise signal.

According to this article: "sound processing and battery power are provided by the device they are plugged into". Your PC hasn't got one of those either.

There could be a difference in the driver as well... however since removing the nozzle dampers produces exactly the sound the EX1000 appears to have compared to the stock EX800ST (more detail, bigger, airier, more soundstage but also brighter treble) I'd rather think they used the same drivers with differences in the casing and damping. It makes sense when you check out the graphs too (they are almost the same with almost the same resonances etc. except for the treble being a few db dampened).

Generally speaking with good sounding recordings the sound without nozzle filters is absolutely marvelous - no comparison to the stock EX800ST (EX1000 anyone?). With crappy recordings or more modern music the sound can at times be fatiguing though - especially for longer listening sessions (well... I guess EX1000 again?). I've tried doing my own DIY filters to get the sound to be more of a mix between the two:

The default foam cylinders have a very very subtle impact (with the plastic disks removed). Depending on what music you prefer listening to, these might not even be needed at all or be enough to tame the treble that tiny bit (basically I'd say this is for the people who don't mind the treble of the EX1000).

Rolling up a ~5x15mm strip of (dried) alcohol swab and inserting them into the nozzles will have a surprisingly big effect on the sound. The sound is not as big anymore, treble is tamed quite a bit (but I can't compare it to the stock EX800STs anymore of course). For me that was a bit much as the sound got noticeably less big and more veiled compared to no filter.

Next up was shortening the strip to ~5x8mm so that when wrapped overlaps just a little compared to before. Sound opens up more again, treble is less congested. I'm surprised how much of a difference this makes to the twice as long piece.

Wrapping the original foam cylinders in the ~5 x 8mm strip from above gives a sound that lies somewhere between the 2 options above. Cutting the strip even slimmer to around ~2.5-3 x 8mm (so not covering the whole foam cylinder) appears to be my favorite so far though. I can't notice much of a difference in soundstage and the treble is reduced just ever so slightly as not to be so fatiguing on longer listening sessions.

Next up was a micropore band stuck over the nozzle (without the original foam cylinder I should mention). I tried 3 variants so far. Completely covering the nozzle, poking a small hole into the middle of the band and only covering around 70% of the nozzle. I liked all three of those options quite a bit. They allow to fine tune the sound and genereally are not affecting the airiness, soundstage and treble too much. It looks a bit ghetto though.

I think I'll stick to the original foam cylinders wrapped in the 3x8mm swab strip for now. That combined with my "Tape mod 2.0" makes them sound like much bigger headphones such as my GS1000.

Headphones have been the staple of many a smartphone retail package for quite some time now, so when a manufacturer decides to throw in a premium offering into the mix, we had to take notice.

The Sony MDR-NC31E digital noise cancellation headset is packaged as part of certain Sony Xperia Z2 premium bundles, and are designed to take advantage of the smartphone’s built-in noise cancellation features to offer a very robust listening experience. Join us as we take a brief look at just how capable they are in our latest flash review.

All about it…

The Sony MDR-NC31E Digital Noise Cancelling Headset is rated for a frequency response of 20Hz – 20000Hz. It features 13.5 mm dynamic speakers and has an nominal impedance of 31 Ohms. There is an included EC microphone and the connector is of the standard 3.5mm 5 pole variety.

The Sony MDR-NC31E takes after the Sony NC13 headphones, which came out in 2011 and had active noise cancellation built-in. With this new model however the noise cancelling feature works only when you connect them to on the Sony Xperia Z2 and Sony Xperia Z2 Tablet, which both have built-in digital noise cancelling (DNC) technology that works only with the MDR-NC31E and other Sony DNC headsets. Of course, the headset will work on other smartphones and devices with 3.5mm audio ports, but without the noise cancelling function.

Sony prides itself as being the only manufacturer to incorporate DNC technology into its flagship, but like we said, only Sony DNC headsets will be able to take advantage of it.

The headset samples surround sound through a built-in microphone, which is then compensated by the DNC circuit in the Xperia device you’ve plugged it into. Sony claims that his reduces up to 98% of ambient noise by creating an inverted anti-sound sine wave.

Using it…

Plugging in the MDR-NC31E into a Sony device reveals a few special options that you won’t see with other headsets. First, a noise cancelling prompt appears as a permanent fixture to the notification area. From there, you can specify whether you want noise cancellation to be enabled/disabled, or active just while you’re playing music. We’re assuming the Always on option will drain a bit more battery.

A prompt appears in the notification area whenever you plug in the headset

Through the Sound effects settings of the music player you can specify what your current noise environment is – Bus/Train, Airplane, or Office. The latter is very useful for when you need privacy in a noisy workplace or conference.

You can select your sound environment in the Sound settings

Loving it…

One of the best things about these headphones is that for many users they will come bundled with a smartphone – another way of saying they are almost like bonus. And getting a noise-cancelling headset as a bonus with your phone is really something to cheer about.

The noise cancellation effect is immediately noticeable once you put the headphones in, and adjusting it to the different environmental settings also makes a difference. The quality of noise cancellation is actually not as bad as the digital noise cancellation moniker suggests.

We put the noise cancellation to test by comparing the headset directly to the premium Phiaton Chord MS530 over-the-ear headphones. Now, the Phiaton Chord MS530 headphones have active noise cancellation built-in and subjectively they really offer a more natural noise cancellation experience, but still, the Sony’s earbuds did a fine job nonetheless. Especially considering the almost tenfold price difference.

As far as the actual sound quality goes, the Sony MDR-NC31E allowed us to hear bass as low as 20Hz, while going all the way to around 19,000Hz in the higher frequencies. The headphones also had good dynamic range, and provided great overall sound – comparable to that of our Apple EarPods that come bundled with iPhone 5-and-newer devices. The Sony headset had even deeper bass than the Apple EarPods, due largely to the fact that they were able to comfortably go deep into the ear canal.

What we also liked about them is that just as with active noise cancellation headphones, you can plug the MDR-NC31E in and enjoy the ambient noise cancellation even without any content running on your phone.

Although the headphones feature a somewhat unconventional “sticking out” design compared to other in-ear headsets, they are very comfortable to wear and easy to take out thanks to the same protruding area. They also fit adequately far into the ear canal to provide good sound without feeling uncomfortable. This design does have its downsides, however.

Hating it…

While the protruding design does have its advantages, one major flaw is that it does not let you lay your head comfortably on your side while using the headset. If you’re a using them while lying on your side, as it would uncomfortably jam the earpiece uncomfortably deep into your ear.

The fact that the noise canceling feature would work only on the Xperia Z2 and Z2 Tablet is extremely limiting the potential uses of these otherwise excellent headphones. If you are buying them separately, they would make for a reasonable buy only if you already own a Sony Xperia Z2 smartphone or tablet.

While the sound cancelling feature is top notch, the actual audio fidelity of the MDR-NC31E headset cannot match premium over-the-ear offerings. Also, we would have liked a cable of the flat, no-tangle variety, rather than traditional tube-like type.

Wrapping up…

If you want to have a capable noise cancelling headset without looking like like an airplane pilot, the Sony MDR-NC31E provides all that in spades. It has excellent noise cancelling capabilities alongside audio quality that rivals some top manufacturers. Best of all, when bundled with a new smartphone, it’s really a deal none of the other flagships can beat. As long as your flagship of choice happens to be a Sony Xperia Z2, you’d hardly find a better match than the Sony MDR-NC31E.