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2014 is an unusual year in Huawei's history. From the launch of the Huawei P7 in Paris to its own Kirin processor to Huawei Mate7 in Berlin, we can see the progress made as a Fortune 500 company. Outside the mobile phone, Huawei can always surprise us in other aspects. The Huawei AM180 active noise canceling headphones released simultaneously with Mate7 is such a fresh digital product. Let's follow the author to simply experience it.
When we mention the earphones, we are most impressed with the basics of two kinds of products. One is the ordinary earphones that can be seen everywhere, plugged in the mobile phone or mp3 to listen to music at random. The other is the strange shape of the shape inserted in the professional HIFI The HIFI enthusiast's headphones on the audio player. But the Huawei AM180 we experience today does not belong to these two types, but the noise canceling headphones with active noise reduction.
Maybe you noticed the word "noise reduction". In fact, the headphones we usually use also have noise reduction function. The noise reduction that we often say is passive noise reduction. In-ear headphones will have a rubber plug. When worn, this is the case. The rubber plug will isolate the vibration between the air and the ear, which will play a role in passive noise reduction.
However, in addition to passive noise reduction, Huawei AM180 also has an active noise reduction function. The passive noise reduction of ordinary headphones can certainly play a role in isolating sound, but there will be a relatively small amount of sound waves introduced due to the tight seal. Ears. When the active noise reduction switch of Huawei AM180 is turned on, the earphones can reduce or cancel each other by receiving and analyzing the spectrum of external noise and generating opposite phase signals, thereby achieving the purpose of shielding noise. Simply speaking, it will be in the earphone. It produces a sound wave that is opposite to the external sound wave. The two sound waves cancel each other out, which effectively reduces the external noise again.
After understanding the principle, we look at the headset design of Huawei AM180. First of all, the earphone adopts oxidized metal material as the outer casing, and the concentric circular metal grain is added on it. The light gray color is also quite commercial and the color can also indicate the earphone. Grade. The earphone cavity is made of polycarbonate material, and the texture is still very good.
The appearance process is for people to see, and the actual machine affects our experience. In addition to the appearance process, there is sound quality and wearing comfort. The sound quality is mentioned later, first talk about comfort. Huawei AM180 active noise canceling headphones redesigned with ergonomics The principle of learning, the ear support design on the top of the earphone, can be adjusted according to the condition of their ears at will. The ear support is also inclined to 13.5 degrees to meet the comfort of wearing.
At the same time, Huawei AM180 is equipped with a large and a small rubber plug in addition to the original rubber plug to meet the needs of different users. After wearing 3 hours of experience, you can barely feel the common headphones within three hours. The sense of guilt that comes with it is easier and more comfortable, so it can still be recognized in terms of comfort.
The remote control part of the earphone is the core part of the AM180. In addition to the metal button that normally makes a call, there is also a noise reduction switch. When the noise reduction switch is turned on, the green LED will light up. The noise reduction module will open.
The point mentioned here is that the common noise-reducing headphone power supply on the market uses the ordinary 7-cell battery, so it will be more cumbersome. The AM180 is a whole design with a small lithium battery built in. Therefore, it is usually worn and used. Ordinary headphones are not much different.
Of course, some people will worry about the battery life problem. AM180 is used with Huawei Mate7. It is enabled when Mate7 is charged. Therefore, if it is used with Mate7, there is no endurance problem, even if it is used with ordinary mobile phones. Even if the headphones are dead, The active noise reduction function is turned off, and the earphone can still be used as a normal earphone. It also comes with a USB charging cable that can be used in any USB power socket.
Huawei AM180 wire control uses a soft gel wire for comfort. The lower part of the wire control is Kevlar material, which is easy to organize and maintains a good strength. The internal wire uses a high purity of 99.996%. Oxygen-free copper core, which greatly guarantees the quality of conduction and sound quality transmission, and restores the original sound of music.
The last 3.5mm headphone plug is made of "rose gold" plating, which provides maximum signal protection for clear and non-destructive sound transmission. It comes with intimate insulation design to avoid scratches and short circuits during contact. Experience the design and technology of AM180. Maintained a fairly high level, and did not affect its material and workmanship because it is a "functional" headset.
Below we conduct subjective noise reduction experience and sound quality performance test.
First of all, we talk about the noise reduction experience. We started to wear the Huawei AM180. We are not in a hurry to turn on the sound source. Instead, we directly turn on the active noise reduction switch. This is what you will find suddenly the world is quiet. I really can't think of any suitable language to describe this. Suddenly quiet feelings.
For example, we may have played diving in the swimming pool. The moment you wear the headphones to turn on the noise reduction switch is like the feeling that you are diving into the water from the water. Of course, it is not the same. We can I heard the low-frequency water flowing from the rumble, but the Huawei AM180 did not leave this low frequency. Of course, it was not directly quiet to the realm of no sound. Instead, the low-frequency filtering in the daily environment was completely thorough, leaving a trace of passing. The high frequency transmitted by the body or the earphone itself. This feeling is wonderful. When we hit the table with our fingers, we hear a squeaking sound, and after turning on the noise reduction switch, it is a squeaking sound.
For the sound quality test, several familiar tracks were selected.
"Tibetan Plateau" "Love is to die" --- Treble test
"The Ferry" "Caizhou Hotel" ---
"Drums" --- Bass test
In fact, testing the HIFI standard for such a headset is a challenge in itself, but as a player who is not professional and has some fever, it is still necessary to try it.
In the whole subjective experience test of sound quality, the initial feeling that Huawei AM180 gave me was dull. This feeling lasted for about half an hour, but then the taste was carefully found to be different. It may be due to better noise reduction effect. The listening environment is much quieter than the ordinary headphones. The high-frequency performance is soft and bright, and the mid-low frequency is especially the sound of the opening of the ferry. It is like a heavy chest, the midrange is more stretched, and the sound is played back. On the more rounded. In short, the performance of the three-frequency is even, there is no particular point, but every point can still come out to say. The overall level of composite performance of this price headset. Of course, if you are a hardcore audiophile used to The gap between thousands of headphones is still very big, but as an entry-level enthusiast or ordinary music enthusiast is enough to meet your needs.
Huawei AM180 should be among the best in terms of music quality performance in mobile phone headsets. It is not only sound quality, but also workmanship and design especially comfort. And if you take it out and 2000 yuan level HIFI headset PK this is also It's not wise, but it won't let you down in the entry-level headphones.