Friday, November 25, 2016

Hi-Res Audio: the science behind the numbers

It would seem that everything has to be simple – the greater the number, the better the sound. Following this logic, a record 24-bit / 192 kHz should sound better than the 16-bit / 44.1 kHz, right? Unfortunately, it is not so, it’s not so easy is arranged as desired. What is Hi-res Audio?

EVEN BEFORE THE START LISTENING ATTENTION ARE SEVERAL FACTORS.

  1. What is the quality of the original recording? We are faced with the so-called “high-quality” recordings, which have the characteristics of a 24-bit / 96 kHz or even 24-bit / 192 kHz but are nothing but a cheap recording with the high sampling rate, sold at exorbitant prices. This is a real sell.
  2. The original, studio recording should have a high quality. If it is poorly mixed by the authors of the track, then no matter how high frequencies, numbers, etc. The good sound recording will not be such.
  3. Very much depends on the playback equipment that you use. If it produces enough clean sound, there is no chance to hear the difference between hi-res recording and ordinary.
  4. Impartiality in relation to records is also important.
What is Hi-res Audio? Standard Definition File – 16-bit / 44.1 kHz. This level of music CDs. Anything above it is considered a hi-res recording. What is not always possible to learn about the high-quality (hi-res) record – is that whether it is the quality, which was recorded and compiled in the studio. To clarify this, in some cases, used the term ‘Studio mix “, which means that the record is not compressed.
What is Hi-res Audio: The science behind the numbers
To make the objective comparison between high quality / recording studio quality and CD quality is sometimes not as easy as you can imagine. I spoke with many people working in and it seems that the quality of the files to a different attitude and different. What is Hi-res Audio? Some studios are more concerned about the high-resolution recordings since they attract the attention of users and will be purchased with more scrupulous attitude to quality. On CD produced usually the hi-res version of a file with a reduced sampling.
Lowering of quality and even causing the loss in sound but, for example, CD-track versions are more suitable for use in advertising or reproducing machine.
And it seemed like once we hi-res version of the track, then technically it will sound better, right? But, again, the answer is not as obvious as it should be.

ABOUT THE DETAILS AND HI-RES: WHAT IS HI-RES AUDIO?

It is best to separate the bit depth (16/24-bit) from the sampling rate (44.1 / 192 kHz) and talk about them separately.
The greater the bit depth, the more accurate the measurement of sound waves, so 24-bit record sounds better than 16-bit. This is because the 16-bit recording is 65.500 degrees measurement sound waves, while the 24-bit recording, the figure is 16 million.
What is Hi-res Audio: The science behind the numbers
Impressive.
What is Hi-res Audio? What else gives a high bit depth – so it improved the range from the quietest to loudest sound recording: 24 bits provide a range of 144 dB, and 16-bit – 96 dB.
Do not forget that all these data – a theory which shows only the data about the noise generated inside the acoustic equipment. In some cases, you may lose the dynamics of the frequency of 10-20 decibels for technical reasons.
The best classical music recordings have a range of 60 dB, whereas for pop music is an unusual range of more than 15 dB. This means that 16-bit word length is enough to play any genre of music.
Sometimes recording deficiencies can be smoothed using a diluted – adding random noise in the recording. Sometimes the correct noise can improve the overall picture.

WHAT IS THE DIFFERENCE BETWEEN NORMAL RECORDING AND HI-RES?

What is Hi-res Audio? One of the reasons to use a 24-bit – is that during the recording process, there are many events that gradually Bates sound quality.
When the 24-bit recording with a large range has several tracks, then its range is reduced significantly. For example, the recording tracks 48 with a bandwidth could provoke the loss of up to 36 dB.
What is Hi-res Audio: The science behind the numbers
System noise and other factors such as the need to prevent overloading of the sound can also significantly reduce the dynamic range. Using 24-bit – a small that allows you not to be afraid of these losses and the output is a decent sound.
The reason why the sampling frequency is increased is used, it has a slightly different origin. 44.1KHz not just been selected for CD quality, despite the fact that the maximum that human ears can hear is equal to 20 kHz. By the way, you have to be quite a young man with a sensitive ear to hear the details.
Digital record huge tend to generate unwanted sounds, beyond the limit of the sampling frequency. Such fines should be strictly screened, or they can create sound distortion in the audible range.
This frequency filtering brings a kind of distortion in the audible range. If you raise the sample rate is even higher, these distortions can “move” even higher outside the audible range. Increased frequency also improves the sound highpass some instruments, despite the fact that science says that we can not hear these frequencies.
I once visited one of the branches of the forum, saying that records are of little avail. However, when I got acquainted with some example entries with different frequency, I can not agree with this. Most hi-res files, which I have heard, they sound great.
By comparison, CD-versions of these songs sound like something rude and cropped.

Top 10 Best Headphones for children

No matter for what purpose – to watch videos, movies or cartoons, listen to music or an audio book, play a game – special best kids’ headphones list is much better than the other options – for example if you give your child your own headphones, or he will use those that offer airline plane. And there are two reasons:
  • Firstly, children’s headphones are specially made for small head, so that the earphones do not slip and fall;
  • Secondly, adult headphones are much louder than the children, and that any good children’s ears are not responsible.
Indeed, adult best kids’ headphones list usually reach a maximum of 115 decibels, and a children’s hearing is not so developed. Experts warn that the baby after listening to these headphones can simply lose your hearing, even if they will listen to just 15 minutes a day. But children’s headphones have a volume limiter – to 85 decibels, and that the sound level is recommended by doctors in health care organizations. In short, a special children’s headphones are safe for the baby, and this – the main thing!

Top 10 best kids' headphones list: choose the right headphones
What else should be considered? Comfort. The best kids’ headphones list very comfortable adjacent to a small children’s ears have fit on the head, and another – a unique design. Children have their own tastes, and the three-year kid does not need headphones such as the 13-year-olds. Manufacturers take into account this factor! Another note length of the cable, or the fact, whether it is cable or Bluetooth prefer needed.
Whatever headphones you have not picked up for the baby, remember – do not allow your child to listen to them more than two hours a day, so as not to cause harm. Well, what exactly to choose – you decide!

HERE IS THE BEST KIDS’ HEADPHONES LIST:

PURO WIRELESS

Top 10 best kids' headphones list: choose the right headphones
It will be difficult to find a more professionally made, well-designed and stylish headphones for young audiophiles. Sound quality – very high and immediately noticeable, even when using Bluetooth. And yet, thanks to the absence of a cable, a child can dance for fun, not trip over wires. Volume is maintained at a safe level, the headphones are safe for the child’s hearing. The battery provides a long time – up to 18 hours and still have a backup cable in case the battery sits.

JVC HAKD5Y

Top 10 best kids' headphones list: choose the right headphones
What is especially convenient in these headphones – it is soft, pleasant padding. In addition, the headphones are very durable, and their appearance – a more “adult” and even “professional”, so that the teenager will be just crazy. Models are available in a variety of colors – pink, blue, yellow, purple, and even go to them labels if a child wants to decorate their own headphones to your taste. At headphone, excellent protection against noise leakage volume limit within safe limits. However, the cable length is only 0.8 meters, but the child that should be enough.

GROOVE-E KIDDIES

Top 10 best kids' headphones list: choose the right headphones
These headphones – the best available in our review, but not the worst. They are strong and very comfortable, and the unique ear cups Cupping suitable for even the smallest ears, and create a full. The sound quality is excellent, especially for such a low cost. A look – a very steep, and the headphones like a little dandy. Combinations of colors are different – ie, to choose from.

KIDZ GEAR LIMITED WIRED

Top 10 best kids' headphones list: choose the right headphones
This is – large and very robust best kids’ headphones list, which come in different colors and styles. Unusually, they are suitable for children from two years old, but fit and high school students, because the size is conveniently regulated. Cord their long – half a meter, very comfortable to watch TV, play on the console, but also without any problems can be connected to a telephone or a computer. The headphones have a cool sound insulation but stop – removable, and it’s good for younger children who have very sensitive hearing.

SMIGGLE NEON

Top 10 best kids' headphones list: choose the right headphones
They can always be counted! Style – a completely unique, bright cheerful colors simply attract the eye, and the design is pleasant to children and adolescents. Cord – half a meter, but it does not tangle. There is an adjustable headband so that the model is suitable for all ages. Sound – to 95 decibels, but it is 10 decibels above the recommended maximum for children, so it’s worth buying them for the older child.

GO TRAVEL CHILD SAFE

Top 10 best kids' headphones list: choose the right headphones
These big overhead headphones are very nice and stylish, they sit comfortably in a baby’s head and not fall down, well fitting to the ears. The wires do not tangle, and headband – adjusts to the desired size of the baby’s head. Colors – pink or blue, for girls and boys, in the style of the space theme has that love child. Headphones looks very funny and fun. The sound is not so clear and perfect, but it is quite suitable for young listeners.

ZAGG IFROGZ LITTLE ROCKERZ

Top 10 best kids' headphones list: choose the right headphones
Attractive, fun headphones in several colors. They are safe for children’s ears, equipped with noise cancellation and reduction of sound pressure and volume to an acceptable limitation for children. Fits snugly to the child’s head does not fall off, even if the child will run, jump and dance. Headphones strong, so fit even those children who all constantly falling from the hands.

PHILIPS SHK400

Top 10 best kids' headphones list: choose the right headphones
Available Bluetooth headset with limited volume. Design – not so for children, but on the contrary – a stylish, youth and contemporary, so that even teens and older students probably want to wear such a device. Lightweight Headphones, around the ears and head, headband – flexible and adjustable. Headphones are very easy to set up and manage, the sound differs quite decent quality, and battery operated autonomously up to nine hours. And there are no wires that will interfere and mess!

KONDOR SUPERMAN MAN OF STEEL ON-EAR

Top 10 best kids' headphones list: choose the right headphones
Bright and stylish headphones themed superheroes. If the child loves Superman, is – the perfect gift for him! Headphones have not only a stylish design but also quite qualitative. Good sound, excellent ergonomics, tight fit the head and ears. Headphones fold and are very strong so that the child can wear them in a school backpack, take a trip and a walk. Have a volume limiter and strong wires that will not tear, even if a child accidentally pulls for them.

SENNHEISER HD201

Top 10 best kids' headphones list: choose the right headphones
This – the only best kids’ headphones list in our survey, which are not specifically designed for children, but very suitable for children. The headband is adjusted easily and conveniently under the children’s heads, and even a cup adjacent to a small children’s ears. The sound quality is simply stunning, the headphones provide complete isolation from external ambient noise. However, there are no volume restrictions, so it is better suited to teenagers these headphones, but not the kids.

SUMMARY

The best kids’ headphones list can be called Puro Wireless Kids, but their price is quite high, and not suitable for all parents. If you want something more affordable, try ZAGG ifrogz Little Rockerz – this is the most appropriate combination of price and quality, and a guarantee that you will not regret.

Weather station with their hands (DIY)

Interactive weather stations for home from the old Monitor author decided to make homemade.

Weather stations for home indoor and outdoor with their hands (DIY)

TOOLS AND MATERIALS FOR WEATHER STATIONS FOR HOME:

  • LCD Monitor;
  • VGA Cable;
  • Glue gun;
  • Screwdriver;
First, the author examines the old monitor and extracts the LCD panel and the control board, also need a cable connecting them. The author emphasizes that homemade fit only the rear panel where the cable does not pass through the entire panel.
Weather stations for home indoor and outdoor with their hands (DIY)
Weather stations for home indoor and outdoor with their hands (DIY)
Use the glue gun fixes the display to the right corner of the connector upwards.
Weather stations for home indoor and outdoor with their hands (DIY)
Lengthen the wires and connect them (you can use any equipment to access the Internet).
Weather stations for home indoor and outdoor with their hands (DIY)
As the software was installed with the browser Google extensions. In order that the weather was relevant, I set the automatic update. Increased brightness and zoom for a better readability.
Weather stations for home indoor and outdoor with their hands (DIY)
Weather stations for home indoor and outdoor with their hands (DIY)
According to the author of the panel had been working for about five months and don’t have complaints.

DIY. Make a matrix of a laptop – new monitor

Many of you have old or broken laptops that lie idle, but some parts in which it is currently working, so it is a pity to throw away the device. And if you suddenly wanted to make a second or third extra monitor for your computer, then this laptop would be just in time. Today I’ll show you how to do the work of the make a matrix of the laptop monitor, which can be universally used.
DIY. Make a matrix of the laptop - the new monitor 2016
Author’s note: most of the photos taken from the network, because my unit at the time of writing this article has already been assembled and disassembled it did not want, but that does not prevent me to convey the essence of the assembly process.
DIY. Make a matrix of the laptop - the new monitor 2016
The first thing we need is a working laptop matrix. At this point you have to be 100% sure that it actually works, otherwise, the following action is useless. So, my patient – HP Pavilion dv9000, in which one of the broken display fixtures and burned video module, but the matrix is 17 inches and resolution of 1440 × 900 working.
Carefully dismantle the make a matrix of the laptop and retrieve the display, and then the very matrix. For the majority of devices in the network have the detailed disassembly instructions. I also drew a speaker and webcam. As a result, we get approximately the following picture.

HOW TO MAKE A MATRIX OF THE LAPTOP A NEW MONITOR?

DIY. Make a matrix of the laptop - the new monitor 2016
  1. jack for connecting the LVDS cable.
  2. connector, which connects to the backlight inverter.
Look carefully at the labels and find the model matrix. As you can see, the HP laptop I and the matrix of the SAMSUNG, we are interested in LTN170X2-L02 label, this is the model matrix. The fact that after the sign “-” can not be ignored in the search, is important to us only marking LTN170X2.
Then go on AliExpress or eBay , and trying to drive in search for the following query: LCD Controller Board LTN170X2.
DIY. Make a matrix of the laptop - the new monitor 2016
We find us a suitable product photograph matrix with all the stickers and send the seller through the form of personal messages. In a letter to write about the following text (course in English): Hello, I have in there is such a matrix, the photo attached to the letter. It will run your card with my matrix. Thanks, If the seller responds positively, and the price you are comfortable with -. Make an order, if not – we are looking forward.
If you do not need any video input, you can easily find, for example, the fee to one of the inputs you are interested in. Thus, you can also reduce the cost of the device.

WHAT DO WE NEED TO MAKE A MATRIX OF THE LAPTOP A NEW MONITOR?

DIY. Make a matrix of the laptop - the new monitor 2016
  1. Input for 12V power supply
  2. HDMI Input
  3. DVI Input
  4. VGA input
  5. Audio Input
  6. Audio output

INCLUDED ARE THE FOLLOWING (THEY MAY DIFFER SLIGHTLY IN APPEARANCE AND CONNECTION METHOD):

DIY. Make a matrix of the laptop - the new monitor 2016
  1. LVDS cable that connects directly to the matrix monitor.
  2. The inverter is responsible for the work of illumination.
  3. Mainboard controller.
  4. Push-button interface to adjust the image settings.
  5. For connecting the push button interface cable.
  6. The cable for connecting the backlight inverter.
Connectivity problems should arise, to confuse the wires also will not work. When assembled, it looks like this:
Next, we should check whether all our device. Connect the LVDS cable to the socket in the matrix, the matrix also has a cable for lighting, we connect it to a free slot backlight inverter. We find in the bins or buy the power supply to 12V, may come up and away from your broken laptop. Be sure to look to plug easily connected to the control board socket. Then connect the computer’s video output to the video input control board one of the three cables (HDMI, DVI, VGA). We serve 12V, enabling our power supply into a power outlet. Up! Nothing happens. As in a conventional monitor device provides a power button \ off. Push the button «ON \ OFF» on the keypad interface. And lo! We see the image. If you are at this stage a black screen, verify that you have properly connected all the wires, whether they are well seated in the nests of boards, working there any way you have the power supply. I have everything turned out right the first time.
DIY. Make a matrix of the laptop - the new monitor 2016
Then this whole bunch of wires and circuit boards should be beautifully mounted on the monitor. I screwed all the boards to the back of the plastic of the monitor, pre-drilled holes for two LVDS cable and backlight inverter cable since they are directly connected to the matrix. Also, to the rear, I fastened two metal brackets to put the monitor on the table without any problems. You can attach the mountings for the monitor on the wall, if necessary. Here’s what happened in the end, my brutal monitor.

WHERE AND HOW CAN I USE THIS MONITOR:

The first two points are only applicable to video cards with multiple video outputs. How to make a matrix of the laptop a new monitor?
DIY. Make a matrix of the laptop - the new monitor 2016
1) As an additional desktop. For example, you start the movie on one screen, while the second do surfing the web or typing text. And no need to open \ close, minimize \ deploy prevent window.
2) as a back monitor. You can take him to another room and watch, for example, a movie or your favorite show are already there. In my board has audio input and output, you can easily connect the speakers. Also, do not be a problem to find a long video, I have worked with a VGA cable, whose length is more than 20 meters.
3) If you are familiar with the Raspberry Pi, you will also be able to connect to it this monitor with no problems.

Review of the best projectors for home and office

The best projectors for home cinema must be able to output high-quality dynamic scenes (such as movies, videos, sports programs) and provide the equally good result for different signal sources or standards. Unfortunately, the implementation of these options costs money. Given that 4K-content is still not enough, the most practical in the next few years will projectors Full HD.
Specific requirements for the best projectors for home cinema can be a minimum delay time – for gamers, this parameter is very important. Video in 3D is now able to show the vast majority of models. The only thing to get a full-fledged home theater surround sound speaker will have to buy the appropriate level of the system.

FEATURES PROJECTOR FOR WORK OR SCHOOL

Educational goals and business needs involve working with static images. Therefore, projectors for offices and classrooms often easy to do without complex hardware and software subsystems interpolation and scaling, color management, and other expensive chips. Their matrix focused on “computer” permission and “cinematic” derive a significant truncation used area. It is understood that the final effect on the clarity of the resulting image is not the best way. No advanced functionality in this group has not been well, but it takes a specific form. For example, support for interactive modes of operation.

GENERAL CHARACTERISTICS

The primary interface to connect the best projectors for home cinema is HDMI, and many models are equipped with and a couple of connectors. If the sources you have multiple – redundant, they just will not.
Almost all best projectors for home cinema have learned to interact with smartphones and other devices for MHL protocol. For easy connection of portable devices have often provided USB ports. There can be considered a useful functional ability through this connector to charge mobile gadgets simultaneously. It should be borne in mind that the presence of another USB interface is not possible to work with the stick. Such “buns” rely upon only projectors with built-in media player. Moreover, the last “smarter” the more video formats will play offline.
Depending on the intended distance to the screen, projectors should be chosen and “length” of focus. Most short-throw models can form an image with a wide screen, while literally inches from the wall, canvas or board. On the other hand, such devices are (usually) not suitable for projection distance. Finally, the brightness of the resulting image depends on many factors, the main among which can be regarded as the distance to the screen, the power of the emitted light output and ambient light level. For most home theater projectors and partially shaded rooms is sufficient flow in the 1500-2000 lumens.
Your attention is a selection of very decent and popular models of different functions in the category of low-cost and medium-cost best projectors for home cinema, have won the 2017 good feedback from customers and from experts. Fully universal solutions can not be here, so choose the best projector for the office or for the home theater should be based on the range of tasks, as well as the anticipated conditions of use.

THE BEST PROJECTORS FOR HOME CINEMA

SONY VPL-HW45ES

Review of the best projectors for home cinema and office 2017
One of the best versatile best projectors for home cinema in the middle class. To display the picture in its used technology LCoS (SXRD terminology Sony), which combines the most powerful competitors (DLP and 3LCD). This projection method allows for a deep and even black. Of course, we are not talking about films in total darkness. SXRD-unit devoid of the characteristic shortcomings of simple implementations of DLP technology. For example, the rainbow effect.
Besides addition, Sony brand development has relatively low latency, which allows the use of such projectors for comfortable gaming output image.
The company very seriously worked on filling VPL-HW45ES. In particular, a special subsystem is responsible for scaling (Upscaling) of the projected image. You will always get the screen clean lines and smooth movement, including when displaying dynamic sports programs originally broadcast quality. With 3D-content in this projector and everything is fine – the visible image has no false images and crosstalk. Its diagonal can range from a meter and a half to seven and a solid optical zoom allows you to install the device on almost any distance from the screen.
Very good best projectors for home cinema for the money. Quiet, with natural colors, high-quality shadow detail and elegant implementation of upscaling.

EPSON EH-TW5300

Review of the best projectors for home cinema and office 2017
More recently, a kind of a hit in the category of the best low-cost projectors home was considered a model EH-TW5200. The manufacturer did not radically change its stuffing, nevertheless continued the line has turned much more attractive prototype. At the EH-TW5300 has become much more accurate color reproduction and higher maximum brightness. The projector is perfect for normal rooms, especially for watching movies in the daytime with minimal shading rooms. Actually, the total absence of light, in this case, a comfortable perception most harm. Still, in his budget form, 3LCD technology can not produce deep blacks on the displayed image.
Epson has positioned the previous model, as a projector for gamers. A really well, attractive game the decision was precisely this generation of devices. In various online surveys indicated the delay time of fewer than 24 milliseconds for fast processing mode.
If you plan to use wireless means of broadcasting content – note the model EH-TW5350. This unit has a built-in Wi-Fi and supports Miracast standard, and Intel WiDi. Limits of change of the displayed image size are even wider than that considered above, the Sony projector – from 0.86 to 8.43 meters, but the possibility of more modest zoom. Maximum optical zoom position at the EH-TW5300 only 1.2. When operating in power saving mode, which is typical for night views or shaded room, the model hardly heard already from half a meter.
I chose this model best projectors for home cinema because of the frame interpolation function. In a bright room image is sufficiently bright, juicy colors and natural.

BENQ W1070 +

Review of the best projectors for home cinema and office 2017
Releasing Model W1070, BenQ company has proven that good quality theatrical best projectors for home cinema can be quite affordable. The fact that we are dealing with an entry-level solution, evidenced by the absence of intermediate frame insertion function. In the case of a signal source with a low-frequency scanning, dynamic scenes on the screen will be slightly jittery, and the image is a little flicker. Another sign of the Budget are noticeable delays when outputting images – for avid gamers, this projector does not represent special interest.
In all other respects, the projector BenQ W1070 + is close to the ideal low-cost devices. In his favor and say the correct color, and digital keystone correction, and the possibility of vertical lens shift and a wide 3D-capable content. By the way, the manufacturer positions this model as a convenient wireless solution. However, “forgets” to mention that the appropriate accessory (Wireless Full HD Kit) in not supplied, but sold separately.
Among other solutions presented by the home projector BenQ W1070 + has the most conservative range change diagonal size – “only” from the meter to six. However, it is enough to show the two-meter image with the same largest distance. The noise level during operation of the device is small. Especially in economy mode.
High-quality picture, a powerful built-in sound, easy to install adequate to factory settings – specifically did not even cool.

BEST PROJECTORS FOR WORK AND STUDY

EPSON BRIGHTLINK PRO 1430WI

Review of the best projectors for home cinema and office 2017
Completely change the idea of the possibilities of modern projection equipment capable of interactive models. For example, having at its disposal a device such as Epson BrightLink Pro 1430Wi, acting in the course of the report can make virtual notes, draw graphics, save information, manage applications, and all this – without leaving the screen. The device supports gesture recognition function and touches fingers, which ensures a new level of teaching or presentations. If you are the offline mode, it is a simple and convenient electronic analog flipchart.
Ultrakorotkofokusny The projector can be installed in just ten centimeters from the plane on which the image is displayed. Due to this particular design, BrightLink Pro 1430Wi completely blind to the speaker and does not cast his shadow on the screen. Another demanded the option of using the projector – the organization of joint work group of employees, including via remote access, with a comfortable visualization of the results.
The best projector for the office, the amazingly convenient tool for collaboration and brainstorming.

VIVITEK QUMI Q5

Review of the best projectors for home cinema and office 2017
Maximum easy to organize the show relevant videos for a small audience allows line of ultraportable projectors Vivitek Qumi. The source of light in them is LED-lamp with 30000th working life. Even if the unit will be operated every day for eight hours a day, such a safety margin it easy enough for ten years. The disadvantage in such a decision as is well known – is a luminous flux of low power, which means shading the room during the demonstration. At the recommended model corresponding figure is 500 lm at Qumi Q6 – about eight, but also the cost of the projector is significantly higher.
An interesting and useful feature of the device is 4 GB of internal memory, as well as its own media player. The first allows you to dispense with external storage media, and the second – without having to connect a PC or laptop for playback of multimedia content or display of various types of documents. Incidentally, independent web-navigation is also possible. Naturally, when you connect the Internet. For example, by using an adapter Wi-Fi. Finally, the projector is capable of working at the special battery, which is connected to the bottom thereof.
With the meter displays the distance of about 30-inch image, perceived comfort in any light. In principle, the brightness is enough for 40 inches if you need more – will have to darken the room.

OPTOMA X341

Review of the best projectors for home cinema and office 2017
This practical and affordable projector, we recommend equipping the classrooms, as well as office use. The model is able to display an image at distances from 1.2 to 12 meters and, despite the relatively modest price, has a lens shift feature. Fully supported by the content in 3D. Including games (Sony PS3 console and Microsoft Xbox 360) and television. Optoma X341 can be used for three-dimensional modeling, design, and similar creative tasks. Luminous flux and high power solid contrast allow you to use the projector in areas without shading and clearly show even very small fonts or details.
Inexpensive, reliable and functional projector from a reputable manufacturer. Compatible with virtually any video and 3D content.

FINALLY

As for image quality, it should be noted that today the most widely used technology three output image on the screen. If we talk about the budget best projectors for home cinema and mid-market group, DLP projectors provide a dull color but differ sufficiently deep black levels. Their peculiarity is the presence of a rainbow effect, which manifests itself with a sharp movement of the head relative to the screen, as a specific trail for the bright object. Such solutions are preferable for shaded areas.
LCD 3 technology provides a bright and vivid picture, but in a dark room, the lack of black would be annoying. As an option – the projection on the gray surface.
A compromise is always possible and, in this case, it is the name of LCoS, SXRD, D – ILA (underline). It’s just a different brand implementation of the same technology that combines the advantages of both the above.
It should be emphasized that in the segment of expensive devices fundamental difference in quality between these species are no projections.
Good luck with your purchase best projectors for home cinema!