Review of the portal Reviews.ru on mAVR H.264×4 TFT

My first encounter with

from "UTS", known for its innovation in the field of ultra-portable electronics, there was approximately one and a half years ago. Then I tested two very interesting models like no one else DVR, which can be bought in our market. In fairness, I note that while the market is in its infancy, and it was not too much to choose from that. Those models which deserve attention, were imprisoned solely for automotive use. As for the universal models that have petite size and excellent picture quality and interesting functionality, there mAVR recorders were and are out of the competition.

The first model, which I was fortunate enough to meet, called μAVR H.264S. It is characterized by extremely small size and weight of only 32 grams. The second model μAVR H.264×4 has a slightly larger size and weight, but in this case it is possible to install up to four memory cards of up to 32GB each, which can store up to 60 hours of video. In addition, all registrars allow μAVR professionally set the recording quality video and audio compression used with the codec H.264, which provides high quality images at a considerable saving space on your memory card, have lower power consumption, can work in a wide range of temperatures and maintain a unique functional allowing to solve using these devices a wide range of tasks.

I recall one curious fact. One of the first models of DVRs μAVR, namely mAVR-1, has been selected by NASA to conduct video geckos and newts in microgravity aboard the spacecraft. According to experts of NASA, at the time mAVR-1 had the most favorable combination of extremely small size (53h55h10mm), weight (35 grams), energy consumption and high quality video, which could not offer any other manufacturer.

Recently, the company "Telesystems' has unveiled its new model, called mAVR H.264×4 TFT. It was her devoted my current view.

It is easy to guess that it is based on a model μAVR H.264×4. It also has four slots for memory cards, allowing you to record more than 60 hours of video in high quality. However, this is not the main thing that I want to say about mAVR H.264×4 TFT. The highlight of this model is the large touch screen. Let me remind you that the base model mAVR H.264×4 was equipped with a small OLED display, which displays only basic information about the current operating mode, recording time, built-in battery and other service information. This is largely hampered the positioning and pointing the camera to the object, so that the user had to do a few test recordings for the "sighting". In addition, you can view the recording was made only when connecting a memory card to a computer. Using the built-in TFT display, we were able not only to clearly direct the camera at the object you need without having to go through the procedure of sight, but also autonomously view previously recorded videos.

mAVR H.264×4 TFT outside …

Traditionally, a review of the new device will begin with a study of its structural features, have for this class of devices of particular importance. At first glance, the new DVR mAVR H.264×4 TFT is very similar to its predecessor, and if not for a large touch screen, which occupies almost the entire area of the upper side of the body, they can be easily confused.

mAVR H.264×4 TFT has roughly the same dimensions (82 x 69 x 18.5 mm), which mAVR H.264×4, that's just the height it was in the 4.5 mm higher, due to the use of the touch screen.

Housing registrar is completely made of aluminum, with the weight of the device is only 145 grams with the battery installed.

On the front face of the body is a tiny built-in camera lens having a viewing angle of about 65 degrees, and two built-in microphone. The main connectors are located on the rear side of the device. There are connectors for external power supply, external microphones, GPS receiver and headphones. Here is a miniature multi-function power switch and port VD, that connects to an external camera, a miniature remote control. Power supply for external camera displayed on the same port. The user can programmatically set the power supply external camera (+5 V or +12 V).

Slots for memory cards are located on the sides of the unit. Below each slot has a miniature indicator showing the activity of the memory card. Please note that one slot is labeled specifically labeled «-SD-». Here is set so-called master card. Unlike other cards, it is recorded configuration file registrar. This I tell you more below, but for now just pay attention to this detail.

You probably already noticed that on the device no control buttons. Through the use of the touch screen, all the control device was smuggled to the menu screen. By the way, this model uses a touch panel, made of resistive technology. On the one hand this allows multiple devices to reduce the cost, on the other hand, because matte color display characteristic resistive technology is difficult to read an image on the outside.

Talking about design features mAVR H.264×4 TFT, can not help but say a few words about the assembly, which in addition to the device, including USB charger, AC adapter to power the DVR adapter for headphones and a special adapter cable that allows you to connect an external camera ( Video + Power) and has a miniature remote control switch, with which you can start recording.

I note that the USB charging is much easier to use in stand-alone DVR conditions. The user can easily charge the device from the "cigarette lighter" in the car, an external battery or just the laptop. The only point on which I want to draw attention is the lack of a special car holder on the windscreen. You can certainly experiment with different universal mounts, but I think that if we talk about the use of this model in quality car DVR, it is best to install it in the "glove box" by connecting an external miniature camera with wide viewing angle.

Setting mAVR H.264×4 TFT …

Exploring opportunities mAVR H.264×4 TFT start with the setup that will allow to fully appreciate the potential of the new device.

I note that, in spite of my fears about the use of matte surface of the screen, all the inscriptions are read without problems, including those on the street. The thing is correctly selected the font size and design (black text with a white border).

So, to configure the device can be used as an on-screen menu and a special program manager, which has a little more room. In particular, by using the OSD menu, the user can not change the labels that are imprinted in the image, can not establish a special frame size and identify sensitive areas for the internal motion. In addition it should be noted that in preparing the registrar to work or replace master card, without the program manager can not do. The fact that the developers have not implemented the ability to create stand-alone configuration file, so long as it can be done only with the help of this program.

The program manager has a very simple and intuitive interface that does not require the user to have any special knowledge and a lot of time to develop. The main principle is to understand — first we create a program
the desired configuration, and then save it to the master map.

Setup Menu recorder includes a total of six tabs. In the first tab, the user can customize the basic settings for recording. In particular, you can select the recording mode. mAVR H.264×4 TFT supports five recording modes:

— Linear recording;
— Cyclic record 1;
— Cyclic record 2;
— Linear recording of all cards;
— Circular logging on all cards.

Consider each mode in detail. In the "Linear recording" the user must select the card you want to record on the roller and the recording continues as long as no space on the selected map. If you want to increase the recording time, you can tap on the "Linear recording all the cards." In this case, the record will be maintained consistently on all installed cards.

In the "Loop Recording 1" entry is the same as in the linear recording mode, as long as there is space on the selected card. Then the data will be recorded, erasing the beginning of the current record. The other entries, wherein remain intact. Mode "Cyclic record 2" works differently. At the conclusion of space on the memory card, the data will be stored, overwriting the oldest entries. The last mode is "Loop recording on all memory cards" are very similar to the previous mode, except that after the transition to the next card data will be written from the beginning, overwriting all existing records on it.

Selecting the recording mode depends on the application. For example, if you use mAVR H.264×4 TFT in the car as a security system or to record any random events, such as during a long experiment, when the recording is not precisely known, it is more convenient to choose one of three modes of loop recording. If you just need to remove an event, such as a car ride, paragliding or something else, it is best to use a linear recording mode.

In addition to select the recording mode, see "Record", you can turn on the parallel recording on two memory cards. This unique feature allows for parallel recording simultaneously on two memory cards. There are many situations in which this can be very useful. For example, using mAVR H.264×4 TFT as car DVR. In the event of an accident or any other accident, you can always make one memory card to the protocol, while the second card with an exact copy of the recording will remain with you, which will eliminate the loss of important information.

In addition to select the recording mode you can program up to ten timers, which will include scheduled recording. For each timer, you can select specific days of the week, select the date and time of the recording, and recording.

Generally, in terms of choices of activation records, registrars mAVR can be called the most advanced. In addition, the ability to start recording in the manual mode (more on that below), and a timer, mAVR H.264×4 TFT supports auto motion detector and voice activation. To configure these features turn to tab "Auto."

Built-in motion detector allows you to set the four regions to four areas in each region. The user can specify an arbitrary size and position of each area, set the sensitivity and time-to-event recording. Much the same applies to the voice activated recording. Only here you need to select the volume level at which recording will begin.

In the next tab, you can adjust the video settings. Here we can select video sources, set the frame rate, bit rate, frame size, and even that, for the built-in camera, may have a size of 16×16 pixels to the original 640×480.

In addition to the parameters of the video stream, you can change the video settings such as brightness, contrast, saturation and hue, turn on the auto-white balance, automatic gain control and noise reduction, as well as to set up to two lines of text that will be imprinted in the video. Here you can set as an arbitrary label (only Latin characters) as well as take advantage of special makrokosimvolami allowing to display the date, time, location, altitude, battery and other information.

Another unique feature of the DVR series mAVR is the ability to flexibly adjust the audio parameters. Here you can select the sound source (built-in or external microphone), the recording mode (stereo or mono), and bit rate. If necessary, you can adjust the gain and volume, as well as to enable automatic gain control. The latter feature allows you to raise a "useful" quiet sound and reduce "harmful" loud sound, which in turn allows you to get the perfect recording quality sound.

The possibility of independently configure the audio and video streams is a unique feature of the DVR mAVR. Manufacturers typically offer either a simplified version of the sound quality settings when the user simply defines a balance between quality and recording time, or at all rigidly fix the parameters. In mAVR H.264×4 TFT we have a lot more options for configuring the balance between quality and recording time, the most appropriate for the specific conditions of use and objectives.

The last two sections include a set of service parameters. For example, in the "Time", you can select the time zone automatically switches to daylight saving time and time adjustment mode on the GPS.

In the "Other" is defined parameters such as brightness, the display time of the controls on the screen, while turning off the display and the device. You can also determine the mode and power supply external camera and GPS module. By the way, as a GPS receiver, you can use only one model specifically designed for registrars series mAVR.

mAVR H.264×4 TFT at work …

Having dealt with the basic features of mAVR H.264×4 TFT can pass the tests. It interested me a few questions.

First of all, I'm interested in the extent to which the device is suitable for use in a variety of conditions. In other words, it is interesting to see how quickly the user can start the manual recording, and how convenient search previously recorded videos.

In this sense, a relatively large screen and a very simple on-screen menus make the recording and playback of data is extremely simple and straightforward. For example, to start the recording process, users simply point the finger at what memory card to record, if necessary, to select the video source (this is a button at the bottom of the screen), and press the record button.

On each icon, symbolizing a particular folder, it shows the level required. This may be helpful when selecting a folder for recording.

The process of finding and watching organized as comfortable as the recording mode. In order to find the desired item, the user has to select the memory card, and then the screen will display a list of entries with the date and time of the recording. Click on the desired entry starts the playback. In general, everything is really very simple and straightforward, especially when compared to the previous model mAVR H.264×4, which accounted for removing the memory card and connect it to your computer.

For the convenience of the records on the computer, every new session is conducted in a separate folder, fragments of 60 seconds. If you watch the recorded videos on the device, it will be played in sequence all of the pieces in this folder.

The second question that interests me, for the quality of the recording. To explore this question, I took a few clips from the camera to the full resolution of 640×480 pixels.

day shooting

Evening Shooting

Even though the video compression by YouTube, you can clearly see that the use of built-in mechanisms for auto-white balance, automatic gain control and noise reduction, even in low light, the image quality is at a high level.

Separately want to mention about the quality of the sound recording. To do this, I recorded music from a distance of 5 meters with a smooth change from a very low volume to very high. Please note, built mechanism of automatic gain control worked well as a quiet and very loud.

The quality of the sound recording

The third issue of interest, perhaps, many who watches the market miniature video recorders, for the possibility of the use of mAVR H.264×4 TFT as car DVR. On the one hand, this model is slightly inferior to the traditional car DVR, which is usually installed in front of the windshield on a special mount. And it's not only in the absence of such an attachment to mAVR H.264×4 TFT. Even if you find a certain universal mount, which would place the device in front of the windshield, then use mAVR H.264×4 TFT would be inconvenient. It's all about the location of the screen, which is used to control the device. Other than that, I can not mention the fact that this model does not have built-in GPS tracking and acceleration sensors. The maximum that can be done is to build a frame coordinates, altitude and speed. On the other hand, mAVR H.264×4 TFT has a number of advantages over the usual video recorders. So, if you put it somewhere in the glove box, and connect it to an external small camera with wide viewing angle, you will get car video recorder with a standard picture quality and recording capabilities that are not available in any other DVR.

Last question — battery life. To explore this question, I took the loop recording mode. Obtained in the course of the experiment time (8 hours 4 minutes) corresponds to official information from the manufacturer, which means 8 hours of continuous operation.

If you need more battery life, you can use an external battery, allowing fuel to charge the modern gadgets powered via USB. For example, using the device Funktech FTB11000U, capacity 11000mAh, I was able at times to increase the battery entry.

Findings

In my view, the new mAVR H.264×4 TFT successfully completes a series of DVRs mAVR. Adding such a seemingly small things like touch screen, fundamentally changes the understanding of usability and functional device. Now, in order to bridge the lens at the subject or watch the recorded video is not to aim and connect the memory card to the computer. Now all this can be done independently.

No less important was the support of such unique and, in my view, the features as support for four memory cards (up to 60 hours of video), a large number of recording modes, parallel recording on two memory cards, flexible and independent adjustment of recording quality for audio and video streams , built-in motion detection, long battery life, etc., which can be called the mAVR H.264×4 TFT most competent and versatile device on the market of portable video recorders, with which you can solve a wide range of tasks. Of course, like any other device, mAVR H.264×4 TFT is not devoid of drawbacks. In particular, the complexity of use as car DVR, and the inability to create a stand-alone master card with a configuration file. In my opinion, you need to add the ability to automatically create a configuration file if the user has installed the new card into the slot.

The last question that worries everyone who mAVR H.264×4 TFT seemed interesting solution — the price of the device. Just note that to call it cheap, I can not. mAVR H.264×4 TFT worth 19,000 rubles, which is considerably more expensive than conventional DVRs, which can now be bought for as low as 4,000 to 10,000 rubles. However, it is worth remembering that mAVR H.264×4 TFT is classified as professional solutions with as you can see above, a number of unique features that are not found in cheaper models.

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