Awesome 4K - Slightly Awkward Cool 50A2 Smart TV Experience

The article is slightly longer. Please select the part you are interested in reading. This article differs from those on the Internet that use Memeto's admiration article. He only experiences and truthfully records from the perspective of a player and End user. He only hopes to bring something useful to you. There is definitely a problem with any product. If not, it means that you are not playing deep enough or knowingly and deliberately concealing it.

After thinking for a long time, I finally decided to omit the part out of the box, but I will mention some of the items that are concerned about design and interspersed in the evaluation.


The main chapters of the article are as follows, select the interested part to view.
Foreword 4K TV How to choose product configuration parameters Product What is HDR
What is MEMC
Product related test product function experience experience summary

Foreword

People have long been pursuing large projects. Big houses, big TVs, big mobile phones, and big cars... As an important part of life, television has gradually evolved from small black-and-white televisions to the large-screen HDTVs of today. From 1080 to 4K to the current 8K, the resolution is getting higher and higher, and the screen is getting bigger and bigger. People's demand for large-screen, high-resolution TVs is due to the higher requirements for quality of life, and the second is the ability to experience better display results.


The current flat-panel TV market is dominated by 4K smart TVs, and more and more traditional manufacturers and even new-generation manufacturers have also invested in the killing of 4K smart TVs. Conventional TVs have gradually replaced smart TVs.

However, as an audio-visual enthusiast, the demand for smart TVs is not only the excellent display effect of the screen, but also how much the function is, and more importantly, the sound quality is excellent. Although they have audio, they are generally watching large-scale movies or It will only turn on when listening to music. The visual and auditory enjoyment brings a higher level of visual and audio enjoyment.

How to choose 4K TV

In the purchase of 4K TV, first try to select the 4K TV above 50 inches, select more well-known brands; then is to find the hardware configuration parameters on the Internet, to confirm the chip and screen material, this is the most effective method, in addition to pay attention HDMI interface type and quantity; if allowed, you can carry on-the-spot testing with 4K standard video and 4K test picture downloaded.

For the 4K TVs on the market, it is difficult to reach the 4K requirement below 50 inches, which is often referred to as pseudo 4K. One is more conscientious, the standard 4K screen but the chip does not have 4K video playback capability or poor decoding capabilities, can be verified by 4K standard video downloaded by themselves; the other is to do a trick on the screen. Use an interpolation algorithm to boost the pixel and disguise the screen as a 4K screen. However, the chip supports 4K hardware decoding. There is a certain difficulty in the resolution. Currently, only the presence of RGBW in the search parameters can be used to distinguish (4K TV to RGB). .

Skyworth, the traditional TV manufacturer, recently released Coolopen 50A2 HiFi big content TV is a smart TV that uses 4K ultra clear screen to support HDR and MEMC motion compensation. In addition, it also adopts JBL A-level certification, supports DTS sound design, but the actual experience How the actual performance of the picture and sound quality remains to be verified.

Product configuration parameters

Here, the display parameters are shown in the product, and the following will be verified by the software.


As a 4K very clear TV, 4K screen standard. The 50A2 uses a sidelight-type backlight design with a dynamic response of 9ms. The design advantage of the edge-lit backlight is that it uses fewer LED dies and the body can be very thin (the screen thickness is about 11mm).


However, due to the light guide plate hit the screen, the brightness of the surrounding edge is generally brighter than the center of the screen, and the temperature will be higher than the middle of the screen. Dynamic response 9ms, basically not because of the slow response to the problem of residual image. As for the 3-4ms of some manufacturers' propaganda, it may only be a matter of different time calculations, as long as people do not notice the afterimage and do not affect the viewing. With MEMC support and HDR support, the display effect will be better, but I don't know what the actual experience is.

Cool open 50A2 material on the choice of some special, because the use of a metal shell, the screen is fixed together by screws, mainly to better achieve heat dissipation.


Cool open 50A2 uses the common 2G DDR3+8G eMMC flash memory, there is not much to be surprised. Two USB 3.0 ports can support up to 2TB of USB storage, but it is a good place to rejoice, at least a few of their own 1TB mobile hard disk and hard disk box can be used together.

The part of the interface adopts the common side plug-in type, which is convenient when wiring and it is not easy to enter the soil. From left to right are LAN port, coaxial audio output interface, three HDMI interfaces (HDMI1 supports MHL), audio and video multi-function input interface (with accompanying AV adapter), audio input interface, RF input interface and two USB3.0 interface. There are more types of interfaces, which can meet the needs of different families.


As a video enthusiast in the hardware configuration is most interested in this set of JBL Sound Bar (A Super-Bass sound), support aptx, can be used independently as a Bluetooth speaker. The importance of sound quality is as important as the importance of the picture. The stimulating enjoyment of the ears and eyes will lead to a superior audiovisual experience, especially in Europe and America, if you have a contrast or similar experience. In addition, it can support AC dual-band, and it also allows one more user on its own router.


There are several places that are more concerned with design. One is this self-conceiving navigation cross key, which cannot be pressed and looks like a decoration. Compared to other smart TVs, this navigation cross key is still necessary and can be used instead of the remote control.


The second is the exposed louvers that are facing upwards. Eating ash is certain and cleaning is somewhat troublesome. Eaves designs should be designed to cover the vents from above to prevent dust or other objects from falling into the TV. Can refer to the design of the micro-whale TV.


The third is the design of the TV stand, which is taller than the feet of the small whale TV. However, the thickness and width of the TV stand are much thinner. We must know that the Cool Open 50A2 is much heavier than the micro whale TV.


The fourth is the picture of the first picture. Two 10W output speakers are designed on the back of the TV. It will certainly have some impact on the listening of the sound. If your home's video wall adopts a circular design, it may be better.

The products are those things

Let you have a general impression in advance and list the features of some products.

1. Innolux 4K screen, support MEMC and HDR function, excellent display

2. Ultra-thin screen design, stylish and beautiful design

3. TV speakers using JBL A-level Super-Bass Bluetooth speaker, excellent sound quality, can be used as Bluetooth invisible love that independent use

4. Hardware combination design of quad-core CPU (A72+A53)+Mali-820, overall performance is above average

5. From the test results to see a real 4K TV

6. In addition to adjusting the volume, the Bluetooth headset volume key can also be used to switch between previous and next songs or videos.

7. Rich and practical interface, including 3 HDMI interfaces, 2 USB3.0 interfaces, 1 TF card interface

8. Support a variety of wireless screen-casting protocols, with their own screen-casting software

9. Integrated smart home, can be used with some brands of smart hardware, such as light bulbs, cameras, patch panels, etc.

10. The high-frequency performance is flat, without much surprises, but no glitches or sharpness; the mid-frequency performance is stable and excellent, suitable for popular songs; the bass is obvious, the surround sound effect is excellent, and the experience is good.

Need to pay attention to

1.After Airplay connects to the TV, the sound is sharp and abnormal, and it cannot sound normally, whether it is song video or game

2. Does not support 3D function, no HDMI video cable

3. The rear cover has only two standard screw holes and is not suitable for wall hanging

4 boot time is slightly slower, there is advertising during the boot process

5. There is a slight light leakage in the four corners, the screen has 3 bright spots

6. The video format is relatively incomplete, with fewer formats than some TV settings.

7. The two tripods are used for heat dissipation and the heat generation is obvious. The main heating area is also concentrated in the bottom position.

8. The image has a similar frame skipping

9. The remote controller is an infrared remote controller. Non-Bluetooth does not support the voice function. It must be aligned with the left corner to operate and control. It is slightly inconvenient.

10. There is an automatic black screen to re-light the screen. After the remote controller's switch button is pressed, select the physical button of the TV to turn off and the TV will be turned back on.

11. Propaganda supports APTX, but does not see APTX-certified display interface with ASUS Zenfone ZOOM supporting APTX

What is HDR

HDR, which is a standard feature of smartphones, is not unfamiliar to most people. Full HDR spelling is "High Dynamatic Range" that is high dynamic lighting rendering or high dynamic range image display. HDR provides more dynamic range and image details through a technology used to expand the video brightness range, and can display highlight images and shadow details at the same time in a strong light contrast environment, giving a more comprehensive view The full picture of the object.

So cool open 50A2 there is no identification of the function switch for HDR, from the actual effect point of view, it should be a strong 4K engine, which is also used to increase color saturation, enhance a function of contrast. This is the display effect of the 4K HDR video in the default mode. The outline of stones in the depth of the screen can be clearly displayed.



Take the 4K Demo video as an example. Compare the effect graphs before and after turning off and on. The same image is only compressed in volume, without any retouching. The screen size is slightly different. Contrast can be seen in the increase in the details of the display, the rocks on the left side of the waterfall, the grass and the lake below showed up.



The application of video is one aspect, and the other one is the display effect of the picture. After opening a 4K HD picture, the system can perform similar retouching on the picture, which makes the picture picture more intensified in contrast to the color and brightness. Please watch the video below carefully.

Http://v.qq.com/page/v/9/s/v0311x1js9s.html

What is MEMC

The full name is Motion Estimate and Motion Compensation, that is, motion estimation and motion compensation, so that the TV picture quality display is more clear and smooth, reducing the tailing situation. The principle is to use a dynamic video system, insert a frame of motion compensation between the traditional two frames of the image, through the increase in the refresh rate to make the motion picture display more clear and smooth, so as to achieve the removal of the previous image of the residual image, improve dynamic clarity Degree of effect.

The advantage of MEMC technology is that it eliminates motion jitter, eliminates motion tailing, and enhances sharpness enhancement. In Coolo 50A2 4M MEMC and image noise reduction can be turned on or off manually. For some marquee subtitles display or dynamic objects, turn off MEMC will intuitively feel the subtitles or objects blurred, and sometimes there are obviously felt Stuck, after the opening will be all improved in the resolution, Caton The situation has weakened.

Let's take a look at the recorded video.
Http://v.qq.com/page/c/w/h/c0311jnekwh.html

Product related testing

The following test experiences are based on this version.


Cool open 50A2 does not use IPS hard screen, how many still make yourself a bit surprised. This time, the Innolux 4K screen was used by the Bay Bay shipment company. According to the previous situation that Innolux and Japan-Korea tablet makers are forcing, this screen has little problem in 4K display, and it can at least reach the 4K standard.

Slower boot time

From the moment you press the power button to turn on the timer, the time until the screen lights up is approximately 6 seconds, and the time until the Home screen appears is approximately 26 seconds. The startup time between cold start and standby is very close.


Power consumption is the largest when it is turned on, and it can reach 100W; when it enters the system screen, it is stable at about 65W; after the screen is off, there is only 0.4W (the source of measurement data and the cat's smart socket).




The TV system uses the CoolOpen 5.2 system based on Android 6.0. The first impression given is relatively simple and relatively fresh in color. The UI is designed in a horizontal manner, rather than the usual waterfall flow.

The category classification is simple and clear, and it can quickly find the content you need to find. In addition to the usual video and TV sections, application market, and other standard, Coolopen 50A2 also joined its own mall, travel and brand sections, it seems that TV shopping will also be implanted into the system, but how many people will buy, faint feeling To boot to see TV ads.

The most attractive feature in the system section is the smart home function. In the current smart home has become popular, linkage between various smart devices is necessary and necessary, and the number and types of brands to be confirmed need to be confirmed.


Functions such as setting options are hidden. Press the arrow keys to call them. Just for users who like this kind of local video playback, the "local media" function should be placed directly on the main interface.

A cool open account is a registered online account. You can receive free VIP members for 2 years to view the members' video content. After logging in, you will see the picture on the titlebar above. The picture below shows the avatar on the right side of the WiFi signal icon.

Cool Kids is a separate interface designed specifically for children. It can be viewed as another account. After switching, different UIs will be replaced. The built-in applications will also be different, somewhat similar to multi-account login. Will be introduced in detail later.



A2 uses the MSTAR 6A938 quad-core chip, where 2 bits are z and the other two are z. The Cortex-A72 is a processor based on the Cortex-A57. The main parameters of the architecture and specifications are not significantly different. The performance is even better. The A53, as a partner with the A72, is already well-suited for low-load environments. The big.LITTLE in the picture represents small cores (A53) for low loads and large cores (A72) for high loads to balance performance and power consumption.


Mali-T820 (OpenGL ES3.1) is more common in current low-end smart TVs and TV boxes. It is the same as the Mali-T830 architecture and chip, but its performance is worse than Mali-T830, but its performance is not comparable. T760.

The resolution of the screen is still 1920×1080 and 240 dpi, which is not very different from the mainstream 4K TV. 2G DDR3 three-channel memory, the available memory after running CPU-Z becomes 675MB. 8G's storage space shows only 4.45G, but it is less available and 3G more. However, the use of 4G storage is not very good. If you play more games and install more, add a TF card directly, such as an HC I 32G or 64G card.


The system uses a cool open system based on Android 6.0, but from the version information point of view, the version used is the userdebug version, rather than the official release version, it means that there are still some bugs to be resolved.



Running points is just a reference. We need to pay more attention to the actual performance of the product.

The following figure shows the result of running the sub-test using the security Bunny TV version. 45063's score is in the middle of the upper level, the composition of the main score is still due to CPU performance and UX performance, compared to 3D performance is more general.


In the running sub-rank, the cool open 50A2 ranking is currently second only to music as Max4, the gap is very clear, close to half of the performance run points. Higher than the music as Max3-65, more than 3,000 points, as for the other PPTV, Storm Video, 17TV and Hisense VIDAA, the difference is greater, there is no comparison value. However, the premise of the comparison reference is the same or similar configuration, so this comparison result is of little significance and is only a reference.


Using PCMark's score, the overall score is 3790. In contrast, video playback performance is low, or is limited by the GPU. The performance of the CPU is stable at 80%. The amplitude is stable and there is no excessive fluctuation.


The internal storage uses 8G eMMC5.0, and there is a large difference between random and sequential read and write. The sequential reading can reach 120.35MB/s, but it becomes 12.31MB/s at random, a difference of 9 times. Sequential writes can reach 14.53MB/s, a random change to poor 1.53MB/s.



As a large-screen TV with a 4K ultra-high-definition LCD screen, the screen detection naturally requires careful inspection. Imagine watching a screen with serious light leakage and a lot of bright spots. You will not return it. This is the result of a 4K TV screen test software test. 55 points score is relatively low, but just a picture of a preliminary test, to try other test content.


All black tests, no retouching, direct photos from manual mode. The red dot on the screen is the power-on status indicator. The TV is indeed on. This does not seem to have any significant light leakage and looks better than the IPS screen.


However, if you take a picture in another mode, the actual situation you see is like this. The screen has a cloud-like display. The brightness is not very uniform, the brightness in the four corners is indeed higher, there is a slight light leakage, and there is a certain relationship with the lighting method.


The bigger the screen, the higher the chance of bright spots. However, there is no obvious brightness under the above black picture. There is a slight difference. Is there no bright spot?

There are, but can be seen clearly in other colors, this computer in hand has a total of three, distributed in different locations, separated by a long distance, the bright spot area is not. According to the definition of national standards, the three bright spots are all considered as normal, but they will still feel slightly uncomfortable after seeing.


In the solid color test, it was also confirmed from the side that the peripheral corner area was higher in brightness than the central area, and the color appeared to be lighter than the central area.



On the gray-scale screen, the first-order in the dark part can be seen clearly, the bright part is more distinct, and the performance is good. The content of another test is afterimage. The corresponding time of coolly opening a 50A2 TV image is 9ms. The grayscale image and other solid-color images are used for switching tests. No image of afterglow is found.


However, on the issue of afterimages, in addition to the image switching test, rolling subtitles news, or rely on the video marquee effect to test. In the display effect, Coocaa 50A2 did not see significant afterimages and was more timely in screen switching.

Http://v.qq.com/page/h/k/f/h0311bfgrkf.html

The screen refresh rate is the common refresh rate for mainstream TVs and notebooks, which is 60 Hz. Although the higher the refresh rate, the better, especially for gamers. TV 120Hz refresh rate products also appear, for the average user, 60Hz has been able to meet the needs of daily viewing experience, there is no need to blindly pursue a higher refresh rate.



It is not too important for the viewing angle. Although the publicity is 178 degrees, there are very few people in the family who sit down to watch TV at the same time. Besides, watching TV on the side is very unpleasant. When there are many people gathering and watching the ball, they go directly to the outdoors or some shops. Go to see.

Cool open 50A2 in the viewing angle can not see the effect of fog or fog screen effect appears better display.




After all, the 4K test is indispensable when it comes to 4K issues.

Cool open 50A2 is relatively clear on the display of fonts and lines, to meet the 4K requirements of the logo. Compared to his own Whale TV WTV43K, it has been completely spiked.


The dot matrix looks a bit ridiculous, but it can clearly see the matrix of constituents.


In the restoration of the tone level, the performance is stable and excellent, and the gray level can be discriminated, and there is no case of jumping or merging. Both dark and bright parts can reach the best condition. The 21-step transition is smooth and smooth, with no apparent parallelism or skipping.


The following color display does not undergo any retouching. It will slightly differ from the actual display effect seen by the eyes, but it will not affect the overall display trend. In the color change is relatively smooth and supple.


It can also be verified from the following HSB color system diagram. There is no concatenation of adjacent color patches, and there is no significant change in color shift and light and shade. However, from the color distribution chart below, we can see that the green distribution area is not in the state of blue and red, slightly oval, not blue and red.


The certification can also be obtained from the color chart on the right side. Compared with the other eight chromosphere diagrams, the green sphere has more obvious ring-band mutations, but only in a limited range.


The overall performance on the color display is remarkable, and the details are slightly insufficient.

4K effect video test

Several standard 4K videos were selected for testing, and beauty was selected for roast duck (20mb), Samsung 4K Demo and dynamic clear test video, which were watched in the default mode.


The following pictures are actually taken by the movie player, which is limited to the camera and the camera and the individual's photo mode. The actual display effect may be different from the actual viewing mode. Only the picture volume is compressed and no retouching is performed.

Thanks to the HDR and MEMC functions, both the color saturation and the contrast performance are excellent. Whether it is the oil and water flowing out of cutting ducks, the thorns on the legs of lobsters, the bees in sunflowers, the bugs in flowers can all be clearly displayed. It is natural for the details of the face to be displayed. The white face is not bleached and the redness of the face is relatively natural. In addition, the facial makeup can clearly see the graininess, and the reduction effect is excellent.

The previous test mentioned that the green color in the color distribution diagram is an ellipse display condition. The performance of the green object display is that the green color is relatively deep and looks bright, such as the green lizard in the picture below. In contrast, the display of red flowers is much more natural and there is no such vivid red color.







Comparing the entire test, there is definitely something and the overall display is satisfactory.

Slightly disappointing is support for video formats. At the most, there are two incompletely supported and unsupported formats, but there are five unsupported formats, three of which are MKV format, and 2K and 4K. The format is not supported. Incomplete support only MP4 format, there is a card on the play.



Product function experience

For smart hardware products, the hardware is the foundation, and the software is the superstructure based on this foundation. How much function, experience, and ease of use are directly related to the user's experience.

As a smart TV, the first thing to satisfy is people's audiovisual needs, so the number and quality of built-in free video resources are important to some users, and the best hits can be updated synchronously. If you are a regular chase person, you may not be too concerned about this because you have an APP that you know well to watch.

Built-in resources

The video resource platform is iQiyi, which guarantees the number of film sources to some extent. Video resources are mainly made in China, there are Japanese TV dramas and Korean dramas, but there is no American drama, there are European and American movies. There are free resources, but the general video quality is not high, most of them do not have high-definition, ultra-clear mode, so the viewing effect and experience are more general. In the more detailed video classification, some classic old movies can also be found, such as martial arts outside the martial arts and so on. Some of the film's off-line films have also been included, such as the old Cannon Crazy Animal City.

In addition to free video sources, there are two modes of membership and charging. Membership is 30 yuan a month, you can watch all the videos of the identification members, the quality of the film source is relatively high, most of the ultra-clear H265 mode. The charge is whether or not a member will need to pay extra.


Buying Coocaa 50A2 can receive free membership for two years, which is a big benefit for users. Just if you do not choose two years membership, the price will be more favorable, I will choose not to membership. Although the TV has an iQiyi platform built in, the member's account can not be used for iqiyi.



USB interface test

Whether it is a 4K TV or not, the USB 3.0 interface should be a standard, because the storage device of the USB3.0 interface is also getting more and more, when playing local high-definition video, it can obviously feel the difference with the USB2.0 device, such as The 26K 4K HD video is tested using USB2.0 and USB3.0 devices, and it will take ten seconds to load the playback after loading and dragging.

In addition, the USB interface is directly connected to a wired keyboard and mouse for use, plug and play, very convenient.

TF card slot test

The reason for the TF test is that some products are too arrogant and picky cards, making people more silent.

Due to the limited number of TF types, there are limited parts for reference. The experience of inserting cards and taking cards is very good. It has a crisp reminder and is clean and neat. In the trial of several TF cards, the FAT format can be properly identified. If the TF card has unrecognized problems, first check whether the card is damaged, and then try to format it.


As a Bluetooth device, compatibility and stability are equally important. Although the product mentions support for APTX in the promotion, it does not see the APTX-certified display interface in connection with the ASUS Zenfone ZOOM supporting APTX. Can only speculate that TV speakers did not go to participate in certification.



When a device such as a mobile phone or a tablet is connected to a television via bluetooth, an audio mode is automatically activated, and a five-second countdown screen automatically goes out to enter a power-saving state, which is a humanized function design.


A number of electronic devices were selected for Bluetooth pairing attempts and there was no problem with connection usage.



The handle to connect the TV to play the game is a very good experience, used to seeing the small screen of the mobile phone (although it is 5.5 inches), watch the big TV full of shocked feeling.



Supporting both physical and software projection screens on wireless projection screens, you can freely choose your preferred method according to your mobile phone. Cool open 50A2 support DLNA, Airplay, Miracast, AirMirror several common screen-cast protocol mode, mainstream brands of Android phones can be directly connected to use, such as ASUS's Playto, Samsung's screen sharing capabilities, iPad, iPhone and other products naturally do not mention These TVs are basically supported by default.


Before using it, be aware that entering Miracast is only for connecting devices such as Android phones, tablets or laptops, and the Airplay mode can be found on TVs, iPhones or iPads. This is the difference. However, after connecting to the TV through Airplay, the sound is sharp and abnormal and it cannot sound normally, whether it is song video or game.

If your phone hardware does not support these, you can choose software to screen, such as the official screen shot APP, you can use WeChat, etc. Currently support a lot of screen, you can directly choose. PC-side iTunes, Windows comes with playback.

smart family

The reason why this is listed separately is because smart homes have become more and more popular. Some commonly-used products such as smart refrigerators, smart air conditioners, smart light bulbs, smart cameras, and smart patch panels have entered the home more and more. However, the linkage between different brands is a problem that needs to be solved urgently. Therefore, a hub connecting other devices and controlling them becomes more important. After all, not every family will use the same smart product directly or use a smart home solution.


In addition to connecting to other devices and setting up, the Smart Home 50A2 integrated smart home application can also be used to purchase smart hardware and corresponding apps. However, the currently supported product categories and brands are limited to only a few specific products, and it is expected that more mainstream products and brands in the market will be added earlier.


At present, only limited air conditioners, purifiers, cameras, and smart lights are the only products that can be supported. None of the smart devices on hand can be bound, because the “IoT” buttons are mentioned in the connection process. The reference to the QQ object is inferred, and it is estimated that products that support QQ's products can be used with TVs. This has great limitations. Most smart products involve remote control, so hardware bindings are done under WiFi connection.


The air conditioner has Kelon and Midea, but because there is no infrared transmitter supported, it cannot be tried. The few smart hardware on hand did not appear in the support list, so it could not be set up successfully.



This part of the experience consists of two parts. One is the audiovisual of pure music, the other is the video with excellent sound effects such as gravity to audition, and the two audiovisual modes are switched to the music and video modes, respectively, and the mode is switched over to the standard. The mode will be improved in effect.

As a speaker of the JBL Class A Super Bass, eight speakers are used, and they support Dolby, surround sound and are full of expectations. However, the design of the two speakers using the rear-end is somewhat unaccustomed to the sound effects.

Due to the limited level of personal appreciation, each person's preference for music is biased and understood. At the same time, he is restricted by the limitation of textual expression. He only uses his own plain language to explain personal feelings. Songs are mainly high-quality songs such as WAV and flac.


Take the mountain stream as an example, there is a sense of substitution of the scene, Gu Zheng sound far more distant, it sounds more mellow and more flexible, the sound of the natural and smooth switching, but listening carefully will slightly feel the high tone slightly depressed, a little bit bored. The entire jasmine blossom is still cheerful, the sound is crisp, and the switching between different instruments is smoothly connected. It is very good to restore the performance of different musical instruments and give people a fresh feeling.

There is no sharp feeling or burr feeling in the high-frequency part, but the feeling of the whole person gives a slight sense of chaos, the bass is more obvious, and the performance of the high-frequency is somewhat suppressed and trailing, resulting in the overall sounding somewhat flat. Taking MUTTER VOILIN SOLO4 as an example, it is easy to restore the high and low bass performance of the difference. Over-convergence is not dragged, but the effect of bass makes people feel that the ductility is limited, but not enough to show the playing style of the violin. . Although Badinerie has a full sense of rhythm, the same instrument does not drag and drop quickly on the fast transitions, and a variety of musical instruments can be played simultaneously in the latter half to stably display the music part without chaos, but give a sense of power. The feelings are somewhat inadequate, slightly less than their own Rambler S1000.

The vocal performance can be said to be stable and excellent. Whether it is Li Jian crying people do not necessarily cry Kari Berlin lover or Zhao Peng's grandmother's grandson Tsai Chin Moonlight serenade, can the singer's singing characteristics show in place more clearly, vocal clarity, in front of singing feeling, more In the sense of presence, there is no vibrato in the treble section and no dullness in the bass section. For Meav's One I Love, there is no sensation of vibrato in some speakers, the vocals are clear and clear, and can be clearly heard for breath sounds. Tsai Chin's Moonlight Serenade is slightly heavier in bass compared to several other songs, but it does not affect the normal reduction of background frogs and howls. If you want to audition, it is recommended that A-Lin try to think of you and the elderly drinking songs Live, the sound part is high and low, A-Lin's voice shows up in place, sounds very comfortable, there is no obvious sense of lack of regret.

One way to listen to rock songs alone is because you prefer these songs, whether it's LinkinPark, Nirvana or Gunsling, and the second is that the bass effect of the speakers is more obvious. Try Hurricane2000The CatalystThis is war, absolutely outstanding performance in the instrument, although a variety of musical instruments mixed and played at the same time, but did not suppress each other, there is a strong sense of shock, but some of the vocal part of the cover, resulting in some distance sounds The singer's passion can't be shown better.

The aforementioned bass part has a deeper expression in the bass repertoire. Whether BASS bass king, drum poetry or tragedy in the city 2001 space roaming, the beginning of a relatively low part of the music can be easily restored, easy and free dive, no sense of restraint, the higher the degree of separation between the instruments, the switch naturally smooth Drag and drop, excellent transient performance. The intensive tapping in the second half of drum poetry did not bring about chaos, and it was still excellent in showing drumsticks and drums, which sounded strong and powerful.

There was no disappointment in the surround sound effect. Changing the position near the TV did not change the sound effect. Take the track of the wilderness fighter F-16 fighter jet test for example, it can give people a strong sense of association and substitution, and people can intuitively feel the sound from far to near, from near and far, from Bottom up, the performance at the point is relatively accurate. The applause, whistle, and cry in Hotel California Live (New Zealand Dance) can be restored in a real place. People can clearly feel the sound coming from different directions and the scene is real.

There are a lot of vocal music films for movies, but there are only a handful of the best movies that have stunning features and sound effects on the screen. A film with a strong storyline is inseparable from the excellent soundtrack, and the atmosphere can be better immersed in the film. Here chooses gravity, Silent Hill. The choice of gravity is derived from the challenging variety of musical instrument sounds and electronic soundtracks in the film. The speaker shows a complete background sound in detail, and can be accurately restored for different musical instruments. The performance is easy and smooth. It switches between soothing and hurry, sound and silence, and transitions naturally. It gives a good simulation of excitement. The environment makes people feel nervous as the storyline and music change.


“Silent Mountain” is a movie that he thinks has become an outstanding performance in the game's transition to a movie. It is a movie that is closer to the game itself, and it is more outstanding in the integration of games and movies. The music scores greatly upset the nervous and fearful environment and atmosphere. The excellent soundtrack made the story outstanding in sound effects, and it was a good demonstration of the terrifying, depressing but magical place in the movie.



The reason why it is put in the end is because such a 4K smart TV is nothing to praise as an infrared remote control.按键数量和功能上跟大多数智能电视的遥控器没有什么区别，只是按键设计布局有所差异。按键有些偏软，回弹不干脆不清脆。




没语音功能吧，倒是可以理解，可以安装第三方软件进行操作控制。但要蓝牙没蓝牙，每次操作都要对准电视左下角的位置，体验总归不爽。每次窝在沙发里，按键无反应只能起身伸长了胳膊对准了方向，很麻烦。不确定是不是发射器面积太小还是电视端的接收器面积太小。


酷开系列电视的对于自家的遥控有一个优点，就是有些遥控器可以通用，比如上面提到的小恶魔，专为儿童打造的一款遥控器，可以一键切换至儿童模式，让孩子有了自己的专属遥控器。除了儿童用的遥控器，此外还有老人专用的遥控器，按键上更少，比较容易记住。从这点来看，自家遥控器一机多用算是酷开电视的优点优势了。


体验总结

酷开50A2的超薄造型搭配外观的流行时尚设计，会吸引一批看颜值的用户。ARM Cortex A72+A53与Mali-820的硬件配置，搭配HDR和MEMC技术，为系统反应速度和画质效果提供了很好的基础。基于安卓6.的酷开系统，简洁的操作界面，使用起来也较为方便快捷。自己是首次体验群创4K极清屏，显示效果上倒是没有让人失望。搭配自己喜爱的JBL Soundbar蓝牙音箱，为视听带来了出色的视听体验。

对于存在的bug部分，希望可以尽早的解决掉，尤其是使用Airplay播放音乐或是视频声音异常的情况，还有就是使用遥控器关机，再按实体键关机开机的问题。你能感受到自己凌晨二点多关机，刚转身背后的电视却又自动开机的感受吗？遥控器作为附属，最好是作为蓝牙遥控器，能够不受对准角度的限制，操作体验更好些，至于语音部分，有更好，但是交互上必须要体验好，否则还不如不做。

作为占据客厅的智能电视，不管你是否会用到电视购物，甚至是反感它，酷开50A2都已经将购物平台内置到了系统中，将O2C模式引入到了电视中，但不可忽略的一个问题，是平台如何保证用户在退换货上的权益，东西加进来有了，还要考虑售后。

另外与其他智能硬件互动的平台也算是各大传统电商进军家居的一个布局，这也将会是各大智能电视厂家发力竞争的一个优势。只是在支持的品牌种类上需要进一步拓展，而不仅仅是所列出的有限几种品牌的产品，毕竟自己手头的几款智能灯泡、智能摄像头等没有出现在列表中，而自己不会为了体验这个联动性材再去购买所支持的那几款产品。

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