Write in front

The good voice of China has made dreams and headlines popular for several times, while the good voice of Wang Feng has made earphones popular for several times, first for leather pants, then for group students, and finally successfully released. Every time the FIIL is so eye-catching, Wang Feng also successfully won headlines by earphones. FIIL, the homophonic combination of "fill" and "feel", is also the abbreviation of "Fiil Me Now". F is also the first letter of the peak. It seems that FIIL carries a lot.

At the end of the above nonsense, this experience report is mainly divided into five parts, including:

'Look' mainly looks at FIIL wireless from the perspective of appearance design;

'New' introduces the technological content of FIIL wireless from the perspective of technological design;

'Listening' means listening to music with FIIL;

'Knot' is a simple summary of this experience;

Look, delicate and beautiful

According to the design in the group picture, the appearance design has a high appearance value, the packaging is simple and clear, and the earphones are exquisite and beautiful. However, the overall packaging is complex, and the details of the inner city packaging are not handled very well. The packaging design was scored 8.6/10.

▲ The main body of the outer package is clear, and the middle is the shape of the earphone. In addition to the logo of FIII, the following is FIIL ME NOW, that is, it comes with the sound, which is the design concept of FIIL.

▲ The entire outer package can be divided into two layers. The inner layer is a horizontal design. The front of the package is the "starting point for mass musicians". The original intention of the design is to take the full name route, not the niche route. Does this mean that the function will be somewhat compromised?

▲ The style of the whole package is simple and simple. There is only a simple logo on the white package, which cannot be too high.

▲ When the package is opened, the inner package is a black box, and the design extends the style of the outer package - simple, but the stimulating taste of plastic is strong.

▲ The bottom of the box is the instruction manual and other parts. The design is not compromised because it is internal, and the internal design is exquisite.

▲ Open the box to see the FIIL wireless headset. The blue version of this experience shows that there are three layers from the outside to the inside. At the same time, there is a separate small package for the relevant transmission line at the bottom of the box. Although it looks very powerful, it is only a portable bag that is practical.

▲ Two audio transmission lines are included with the headset, which are suitable for ios and Android devices. FIIL wireless supports two different modes of Bluetooth transmission and wired transmission. Mountaineering buckles, charging data lines and instructions are also included.

▲ FIIL wireless supports touch operation, and the film on the surface gives a simple prompt. See the manual for details.

▲ The interface hole of the FIIL has a power input hole on the left and an audio transmission hole on the right. There is only one physical button to control the power switch of the headset and the switch of Bluetooth.

New, strong frontier

FIIL wireless uses Apt-x or AAC encoding and decoding technology to achieve the effect of Bluetooth playing HiFi, and adds active noise reduction technology. At the same time, it has designed a special operation application FIIL+for earphones, so that non professionals can play with earphones professionally. The technical design score is 9.4/10.

When using FIIL wireless, it will intelligently select the mode with high transmission quality. If the playback device does not support Apt-X transmission protocol, FIIL will automatically select AAC transmission. Similarly, if the device does not support AAC transmission, it will automatically select the Bluetooth audio transmission mode. The most basic mode is SBC mode. At present, most mobile phones work in SBC mode when transmitting Bluetooth audio. However, as Bluetooth 4.0 and 4.1 standards are gradually applied to products by manufacturers, AAC and Apt-X products will be more and more supported in the future.

The general steps of the whole transmission process of the Bluetooth headset are two decoding and one encoding processes, such as MP3 format files (MP3 → PCM → AAC/SBC/apt-X → PCM), because MP3 itself is lossy compression, the impact on the sound quality is self-evident after a lossy coding, and even lossless coding will experience a lossy coding in the whole transmission process, which completely loses the meaning of lossless coding.

The full name of AAC encoding and decoding technology is Advanced Audio Coding. It is a file compression format designed for voice data. It is designed to replace MP3 format. Compared with MP3 format, AAC makes the file format smaller and smaller under the condition of ensuring sound quality, and retains more high-frequency details than MP3 coding. At the same time, AAC has obvious advantages over SBS coding commonly used in Bluetooth.

Apt-X encoding and decoding technology is based on subband ADPCM (SB-ADPCM) The digital audio compression algorithm of the technology has the advantages of low latency, good fault tolerance, high audio quality and low power consumption, also known as Bluetooth HiFi. At present, there are not many devices supporting Apt-X, and there are few headphones supporting Apt-X encoding and decoding technology. It can be seen that the technological content of FIIL wireless is very surprising. Unfortunately, the iPhone 5s I use does not support Apt-X technology.

Another surprise of FIIL Wireless is the ANC (Active Noise Reduction) technology. The ANC technology uses the signal microphone placed in the earphone to detect the low-frequency noise in the environment that can be heard by the ear, transmit the noise signal to the control circuit, and the control circuit performs real-time calculation. Then, the Hi Fi horn transmits sound waves with opposite phase and same amplitude to cancel the noise. The main reason is wave superposition principle. In the actual experience, the active noise reduction function of FIIL wireless is very powerful. The noise at a long distance is almost reduced to inaudible, but the noise at a short distance is still obvious. The details will be expanded below.

After introducing the powerful technology, the next step is to introduce FIIL+, which is specially designed for FIIL earphones. This app allows non professionals to play with earphones professionally.

▲ The previous version had an arc design, just like the operation of the watch OS. After the upgrade, I found that it was boring. Alas, I was sad, but this direct home page design is very convenient to set the earphone parameters, although it is less beautiful.

▲ The main functions of Fiil+are directly displayed on the home page. The arc on the top half of the home page is the power of the headset. Click the button next to it to display the exact use time and whether the noise reduction function is enabled.

▲ The style menu is to choose the playing style. There are three styles to choose from, but there are still a few styles to choose. At the same time, the treble transparent and bass shock modes are not very useful in use. After selection, the playing effect does not change much. I prefer the blood vessel expansion brought by the treble, but the treble transparent does not bring the hearing comfort, I don't know the design significance of this function.

▲ Next sound field selection, The sound field of FIIL gives people the impression that the stage can be well placed in front of the audience, rather than a simple and brutal hit effect. It has a certain sense of scale. For example, in the big theater, I heard the group's PK songs of the Voice of China Wang Feng Group in the past 15 years. The sense of reproduction of the songs on the scene is very obvious, and the three-dimensional feeling is obvious. I want to praise FIIL. A little pity is that, There will be a certain degree of compression in the living room mode and the small theater mode, and the knots are somewhat stiff. However, I can experience such an excellent image on the main Bluetooth function, and also on the closed headset. Let's praise FIIL again.

▲ The noise reduction function is mentioned again here. There are three modes, and the effect of noise reduction is not mentioned here. The common mode is to reduce the loss of sound quality caused by noise reduction and bring better sound quality experience, but the sound quality improvement brought by actual use is not very high, so it is not necessary to use it; The simultaneous listening mode collects voice through MIC and sends it to headphones after noise reduction. The purpose is not to miss the conversation of people around me when listening to music. Although I don't wear headphones when I am with others, the experience brought by this function in use is quite correct. If you are a music maniac and are with friends, it is recommended to turn on the simultaneous listening mode.

▲ It is a pity that the automatic shutdown function needs to be explained, and the time cannot be customized; More functions that are not commonly used can be selected, such as panel lights. Although it is cool, the usage time will be discounted.

▲ Finally, let's introduce the earphone burning function in the main menu. When this function was launched, many people complained about it. Non enthusiasts can give it a try. The purpose of earphone burning is to experience better, reduce assembly stress in production, and make users hear good sounds. The earphone of FIIL+uses powder noise, which should be in the middle and low frequency range, taking into account high, middle and low levels. The system automatically burns the headset for 150 minutes at a time, and pauses for 5 minutes after 75 minutes to prevent the coil in the headset from overheating. The total time of burning the headset is 3000 minutes. In the actual experience, I did not experience the change of sound quality after the headset was turned on. Although FIIL+makes it easier to turn on the headset, the author does not recommend deliberately turning on the headset. If you think your headset does bring experience changes after a short time of turning on the headset, you can turn on the headset. On the contrary, if the effect is not obvious, you can turn on the headset by listening to music, The process of listening to music is actually playing headphones.

The above are some of the technical experiences FIIL brings. Generally speaking, the technical design is still strong at this price, but there is still room for improvement.

Listen, exquisite and shocking

Love to listen to songs to test the sound quality. The evaluation is that the bass is smooth, the midrange is excellent, and the treble is dull. The score given is 8.7/10.

Select music to listen to:

Rihanna 《Towards the sun》

Adele 《Hello》

Zhao Lei's Youth Brocade

Zhang Lei, South of Nanshan

On the whole, FIIL Wireless prefers medium and low frequencies, which is also popular with the public. This also enables FIIL to play Mandarin music with ease: the performance of low frequency band is OK, although the dive is not deep, it has a sense of texture, and the overall control is good; The medium frequency band is thick and plump, with excellent performance. However, the performance in the treble part is general, without too much extension, and the sense of burr is obvious. Its wide sound field, coupled with excellent medium and low frequency performance, makes its positioning biased towards pop music, especially boys. The overall tri frequency connection is relatively smooth, without obvious sense of separation.

It's a pity to expect

In general, the experience brought by FIIL Wireless is good, and I give the overall score as "look" 8.6 * 0.3 "new" 9.4 * 0.3+"listen" 8.7 * 0.4=8.82

I gave a score of 8.82 points. In my personal opinion, the technology is outstanding, the design is better, and the sound quality is moderate. On the whole, FIIL Wireless has always carried out the public music route, but the outstanding technology has not played its due role, and I look forward to the outstanding performance of the next generation of products.