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Wednesday, October 10, 2012
what is ratina display technology
6:19 AM
Mukesh Garg
Retina Display is designed to smooth the jagged edges of
pixels are provide a higher-quality image than previously available on mobile
devices. Apple claims that it's resolution is so good that it makes it
impossible to distinguish individual pixels. The effects of the display
technology are noticeable in many uses, but especially in text, where font
edges are curves are substantially smoother than on previous display
technologies.
Retina Display's image quality derives from a number of
factors:
A greater density
of the pixels that make up the iPhone's screen
Higher contrast
ratio than previous models for brighter whites and deeper blacks
In-Plane Switching
(IPS) technology to improve viewing angles
Chemically treated
glass over the screen and LED backlighting to improve the quality of the image
Resolution
The Retina Display, as used on the iPhone and iPod touch,
offers a resolution of 960 x 640 pixels. Since both devices have 3.5-inch
diagonal screens, this means they offer 326 pixels per inch.
It's this resolution--326 pixels per inch--that Apple claims
is the same as the human eye. The resolution was achieved on a relatively small
screen thanks to pixels that are just 78 micrometers wide, according to Apple.
Claims Disputed
Some experts disagree with Apple's claims that Retina
Display actually offers the same resolution as the human eye, pointing out that
the iPhone would need varying numbers of pixels per inch, depending on how
close it is to the eye, to mimic the human retina.
Steve Jobs first introduced the Retina Display when showing
off the iPhone 4. He explained it then as four times the amount of pixels in
the same amount of space. That’s what the key is right there, the amount of
pixels in how tight of a space.
To put it into number, the iPhone 3 comes with a 3.5 inches
screen and a screen resolution of 480 x 320. That is equivalent to 163 pixels
per inch (ppi). For the iPhone 4 and 4S, with the same 3.5 inches screen, the
screen resolution is now 960 x 640 ( 326ppi), double that of its predecessor.
As for the new iPad, the resolution is 2048 x 1536 on a 9.7 inches screen,
equivalent to 264 ppi.
This assertion was disputed by Raymond Soneira, president of
DisplayMate Technologies, who believes the human retina can see 477 pixels per
inch. This assertion was in turn disputed by the author of Bad Astronomy, Phil
Plait, whose has collaborated with NASA on the Hubble Space Telescope camera.
He believes that 300 pixels per inch will not be seen with a person who has
20/20 eyesight, and that only people with eyesight better than that would see
the individual pixels.
Going on the assumption that an iPhone or iTouch will be
viewed at a distance of approximately 12 inches, Apple made this 960 x 640
display (measured in pixels) 326 pixels per inch, just over the amount that the
eye should be able to detect. This means the naked eye shouldn’t ever see those
pixels, and should only see smooth text and images.
Apple then brought that same Retina Display technology to
their iPad. With a larger screen, 9.7 inches, it requires more resolution. They
have made the resolution 2048 x 1536, which is even better than a standard HDTV
display, a million more in fact, just to put it in perspective.
RetinaDisplay-iPad
Bear in mind, though, that this resolution is going to
depend on how it was originally uploaded. Take pictures on Facebook. If your
friends upload bad, fuzzy pictures with a very low pixels per inch to Facebook,
when you view them with your device that has Retina Display, it’s not going to
look any better. You can’t fix what’s already there. But if your friends upload
pictures that have a high pixels per inch, you will see them as intended.
Going back to the question if Retina Display is something we
need, it all depends on personal preference. Some people didn’t need to update
to CD players, because they were happy listening to their music on cassette
tapes. Similarly, some people won’t mind a lower pixel per inch display. It’s
not a necessity. However, if you’re wowed by great displays, you will enjoy
every single pixel, whether you can see them or not.
The new MacBook screen-resolution is 220ppi, but used
further away its display is claimed to have a similar appearance to a
smartphone. The one retina display in my life is on my iPad 3 – and I love it.
Photos, books and magazines look crisp and natural, indistinguishable from
their print equivalents. Along with the iPhone, the Galaxy S3 and HTC One X
smartphones also boast retina displays. Makers of Windows-based laptops have
been slower to produce high-resolution models, but the eye-popping MacBook Pro
will give them plenty of incentive to do so.
If jagged pixel-edges are being purged from your mobile
phone and computer screens, there’s also a determined effort to sharpen up your
TV and movie-watching experience. The advent of “full” high-definition has
amounted to a quiet revolution in the quality of TV images flashed at our
retinas. But the HD our eyes have adjusted to, known as 1080p, is relatively chunky
and low-resolution in the scheme of things. TVs and projectors shown at trade
fairs this year are capable of displaying “4K” resolution – four times what we
now call high-defi nition. New Zealand film-maker Nigel Stanford, who made a
fortune as a founding employee of Trade Me, this month released one of the
first films made available in the 4K format. The documentary Timescapes
features time-lapse and slow-motion photography of the US southwest.
The film treats you to panoramic views of the dazzling night
sky above the Arizona and Utah desert, luxurious shots of red windswept
landscapes and giant forests of redwoods. I watched Timescapes on Blu-ray and
was blown away. But Stanford, who produced and scored the film, has made
Timescapes available for purchase as a 21 gigabyte “4K” file. “When your eye
can’t see individual pixels, it’s like you’re looking out of a window,” say 4K
film-makers. Nature documentaries like Timescapes get the best out of the
technology – it’s why HD nature docos are always playing in TV showrooms.
The pursuit of realism and the elimination of the jagged
pixel will be a boon for 3D movies, which haven’t wowed audiences yet. Current
3D TVs that rely on passive polarised glasses cut in half the full HD
resolution each eye sees. With 4K you can get full HD on a 3D image, cutting
out the noticeable loss of quality that makes 3D so disconcerting. But this
resolution increase will force a technology upgrade once again. Your current TV
screen just won’t cut it in the 4K world. Nor will your Blu-ray player. It will
be another trip back to the electronics store. It’s enough to make your
eyeballs itch.
Power hungry
By area, every iPad is made primarily of battery - and the
new iPad has the biggest one yet, which is why it's slightly thicker and
heavier than its predecessor. Driving those extra LEDs requires lots of power,
and to achieve the same battery life as an iPad 2 the new iPad's battery has
been upped from 25 watt-hours to 42.5.
The new screen isn't the only culprit - 4G mobile broadband
radios, which are available in the new iPad, are infamous battery hogs too -
but there's no doubt that Retina displays are more power hungry than non-Retina
ones.
The quad-core graphics in the A5X processor and the RAM
increase from 512MB to 1GB are largely to drive the display too: without them,
the new iPad's performance wouldn't be anywhere near as impressive.
Retina apps can be hungry as well, not for power but for
storage space. Retina-friendly versions of apps can be significantly larger
than non-Retina ones: Pages went from 95MB to 269MB, Numbers from 109MB to
283MB and iMovie from 70MB to 404MB. The difference isn't just higher
resolution textures, icons and media, but there is a real danger that for
graphically rich apps, Retina-friendly content could quickly overwhelm even the
roomiest new iPad.
The problem is particularly annoying when an app uses
pictures, such as JPEG images, to render text. Not only is that bad for
accessibility - VoiceOver can't read it out, it can't be copied and so on - but
it's bad for app size: the new iPad has four times the pixels of the iPad 2,
and that means images need to be four times larger to look good.
That could be disastrous for apps such as some digital
magazines, whose creators export the whole publication as a series of images.
As Christopher Phin, editor of our Retina-friendly and distinctly un-bloated
sister title Tap! explains, "If you're rasterising text to pixels rather
than just letting it be text, your issues are going to bloat even more once you
adopt Retina. If your issue is 650MB now, an issue built for Retina display
could be 2.5GB."
Subscribe and save
MacFormat
Find out more about MacFormat magazine
As Chris notes, apps will contain the graphics for both
Retina and non-Retina displays, so that 650MB app could easily go past 3GB.
Tap! doesn't use images to display text, and we sincerely hope other
publications follow its lead. Otherwise there are going to be a lot of unhappy
iPad owners out there.
Even if you don't subscribe to digital magazines, the Retina
display could cause you some storage problems: videos and photos that have been
optimised for previous iPads running 1024x768 resolutions don't look so good on
the new iPad, and that means you'll have to decide whether upping the quality
is worth sacrificing space for. If you think you'll be watching a lot of HD
video or storing lots of high-resolution photographs, you might regret buying a
new iPad with just 16GB of storage space.
It'll be interesting to see whether badly designed
Retina-friendly apps also cause problems for older iPad users. We hope not.
Monday, October 1, 2012
How to install Google play in Kindle fire HD
12:18 AM
Mukesh Garg
- First, you must root the Amazon Kindle Fire. You can install Android Market only on a rooted tablet.
- Download Google Services Framework.apk and Vending.apk files from here. Place the file on a Windows running computer.
- Take the device and go to “Settings -> Device” and check the “Allow Installation of Application From Unknown Sources” option.
- Install the Root Explorer tool by obtaining the apk. File.
- Connect the tablet with the PC via USB cord.
- Copy-paste the tools downloaded in step 2 from the computer to your device.
- Open the Root Explorer app and go to the same folder where you have placed the files.
- On the window that opens choose to install the GoogleServiceFramework.apk file.
- When done, go to the Vending.apk folder (location).
- Choose to “Move” the same file.
- Go to “/system/app folder” and change permissions from Read Only to Read Write.
- Move the file into that directory.
- Press and hold on the Vending.apk file and from the sub menu that opens choose permissions and change to RW-R–R–.
- You can now install Vending.apk.
- After that, reboot the Amazon Kindle Fire.
- Take note that Google Play is not a default app so it will not be displayed on the default Applications menu of your device.
- So, it’s recommended to install other apps too, such as Go Launcher or ADW Launcher.
There you have it; that was the how to procedure in which
you could learn how to install Android Google Play Store on your Amazon Kindle
Fire. Remember that the tablet must be previously rooted, or else you can’t
succeed with this operation. Do tell us how things worked, or if there were
issues. If something isn’t working share the problems with us so we can help
you through. Don’t forget to check our daily posts for further Android related
how to guides.
10. On your home screen, you should see the Android Market
logo in your carousel. If not, download a launcher, which has a link to the
Android Market. I use Syndicate Apps ICS launcher (available here:
http://syndicateapps.com/main/ICS_Releases.html). For the launcher, hit the
little icon in the bottom middle, and tap op the Android Market bag at the top
right. Once you get to it, set up your Kindle Fire as a device to use for
Google Play. Your done!
Sunday, August 19, 2012
Philips SPA5300/05 Multimedia Speaker 2.1 review
11:15 PM
Mukesh Garg
Product Description
-
Product dimensions
- Width: 19,6 cm
- Height: 29,2 cm
- Depth: 19,8 cm
- Weight: 3,77 kg
-
Sound
- Bass enhancement: Digital Bass Boost
- Music Power: 100 W
- Output power (RMS): 2 x 10W + 30W
- Volume Control: Analogue Volume Control
- Wires: Fixed Wires
-
Loudspeakers
- Satellite speaker freq range: 180-20.000 Hz
- Subwoofer freq range: 20-180 Hz
- Loudspeaker Enhancement: Magnetic Shielded LSB
-
Connectivity
- Cable length: 1.5m
- Connector: 3.5 mm stereo
-
Convenience
- Power on indication: Yes
-
Power
- Power LED indicator: Blue
-
Packaging content
- Number of satellites: 2
- Subwoofer: Yes
- Amplifier: Yes
- 3.5 mm stereo line cable: Yes
- Quick installation guide: Yes
-
Outer Carton
- EAN: 87 12581 45229 2
- Gross weight: 22,836 kg
- Height: 56,6 cm
- Length: 55,7 cm
- Nett weight: 18,312 kg
Saturday, June 2, 2012
Friday, June 1, 2012
Logitech Z623 THX-Certified 2.1 Speaker System
12:41 AM
Mukesh Garg
The Z623 THX-Certified 2.1 Speaker System from Logitech provides high-quality audio that puts you right into your music, movies, and games. Ideal for use with computers and video game systems, the Z623 has a powerful subwoofer and a pair of satellite speakers with 200W RMS of power to deliver clear stereo audio with thumping bass. THX certification ensures that your audio is held to the highest performance standards.
The system has RCA and 3.5mm inputs, allowing you to connect a variety of computers, music players, DVD players, TVs, and game systems. Integrated controls in the right satellite make it easy to make adjustments. For times when you want to listen privately, a 3.5mm stereo headphone jack is provided.
Note! Connecting a video game system to the Z623 requires the use of the A/V cables that were included with your game system.
- Powerful 2.1 sound system with a powerful subwoofer and a pair of satellite speakers
- 200W RMS of power to deliver clear stereo audio with thumping bass
- THX certification ensures that the speakers have met strict performance standards to provide the best possible audio quality
- The system has RCA and 3.5mm inputs, allowing you to connect a variety of computers, music players, DVD players, TVs, and game systems
- Integrated controls in the right satellite make it easy to make volume and bass adjustments
- A 3.5mm stereo headphone jack is provided for private listening
Thursday, May 31, 2012
Creative Sound BlasterAxx SBX 20 Sound Blaster
11:30 PM
Mukesh Garg
A whole new generation of Sound Blaster
We have combined the legendary audio quality of Sound Blaster and our high-performance wireless speakers into one revolutionary product. Sound BlasterAxx SBX 20 will not only transform the way you experience your music, movies and games, but also how you communicate in your voice calls! Together with its accompanying software suite, Sound BlasterAxx SBX 20 brings to you a whole new level of engagement and interactivity with your devices. Watch how Sound BlasterAxx fits into your life.Redefining voice communications
Sound BlasterAxx SBX 20's built-in microphone, combined with our
advanced CrystalVoice™ technology, lets you communicate in a whole new
way. You're no longer bound to your computer seat nor have a phone stuck
to your ear during voice calls. What's more, all communication is
maintained in unbelievable clarity. Learn more about CrystalVoice technology here.
You're always heard
With the Smart Volume Management feature enabled, your voice can be picked up even when you're speaking from the other end of the room - with no drop in volume or voice quality perceived by the listener. You're free to move around while still engaged in a conversation!You're "in focus"
There's also a Voice Focus feature, where you can customize the acoustic zone, so that only your voice is heard when you speak within this zone. You won't have to worry about your kids screaming or dog barking if they're out of the focus area!Only noise-free, crystal clear calls
Enjoy crystal clear conversations even in noisy environments. CrystalVoice's noise reduction and echo cancellation features mean you'll always be heard clearly as unwanted background noise such as that from a nearby vacuum cleaner or hairdryer is being eliminated.Absolute control & flexibility
We've included a comprehensive suite of software for both your computer
and smart device that will enable you to get the most out of your Sound
BlasterAxx.
Customize your movie, music and game audio
Experience superb audio realism and stunning 3D surround effects in your movie and gaming audio with SBX Pro Studio.No more rude shocks
Never miss anything again when you're watching your movies, or fall off your seat at an unexpected explosion. Adjust settings that let you hear barely audible movie dialog, or conversely, subdue sudden high-volume events so that you won't wake the whole family in the middle of the night!Audio control from your smart device or computer
With the free Creative Central app for iOS and Android™, you'll get extensive audio control right in the palm of your hand! Use it to manage all your Bluetooth® devices, adjust and control Sound BlasterAxx's audio settings and even watch videos that'll teach you how to get most out of your app and your Sound BlasterAxx.If you wish to control audio from your PC or Mac, and want more flexibility in your audio customization, download the free Sound BlasterAxx Control Panel software here.
Go ahead, have fun!
Take on another persona and surprise someone in a voice call! CrystalVoice FX enables your voice to be altered on-the-fly with a variety of effects, creating interesting accents, or be made to sound like a completely different person.For PC users, we've included the "What U Hear" plugin for the Sound BlasterAxx Control Panel, which lets you record a mix of your Karaoke track and your voice as you sing along with the track!
Own a technological marvel
Great technology needs to be supported by equally awesome hardware. Not
only is Sound BlasterAxx SBX 20 equipped with the most advanced
hardware, it is specially designed for maximum usability and audio
delivery.
It listens to you
Sound BlasterAxx's high-quality dual-microphone array functions as its ears. It accurately picks up your voice, and together with the applied technology, intelligently adjusts the audio.An unparalleled listening experience
At the heart of Sound BlasterAxx lies the SB-Axx1™ chip - Creative's most advanced multi-core voice and audio effects processor. This boost in audio processing power translates to a dramatically superior listening experience for your music, movies and calls that is simply second to none.Big sound from a USB connection
Be amazed by the impressive sound and thumping bass generated by a device that is powered only by a mere USB connection! This is made possible by the highly energy-efficient circuitry that's being incorporated within the intelligent amplifier design.Innovative and intuitive design
Sound BlasterAxx's "Stacked Stereo Acoustic Design" combines two speaker drivers vertically into one chassis, making it not only space-saving and aesthetically pleasing, but delivers a great stereo experience as well.Easily access the main functions using the intuitive, touch-sensitive control panel, which is conveniently located at the top. Have a 360° look at the Sound BlasterAxx SBX 20 here.
Wait, there's more…
Stream high-quality Bluetooth audio
Wirelessly stream music, movie or game audio from any compatible stereo Bluetooth device such as your smart devices, PC or Mac. With iOS devices, you can also stream with Advanced Audio Coding (AAC) for seamless high-quality, low-latency wireless audio.A whole new way of audio interaction
Because of the advanced audio pick-up capabilities of the Sound BlasterAxx, you can utilize it to speak to iPhone's Siri® or Voice Actions for Android to make a call, play your music or many other voice-activated functions with greater accuracy. It will also work with other readily available voice-activated apps like Voice Assist™ or Vlingo®Friday, May 18, 2012
THX certified speaker
10:26 PM
Mukesh Garg
THX Certification is a rigorous set of industry standards for audio reproduction. Essentially, it means that the sound coming out of your 5.1 surround sound or other speaker system is being heard exactly as the audio engineer intended for it to sound while he was recording and mixing it.
THX stands for "Tomlinson Holman's eXperiment," and was created by Holman while he was working with Lucasfilm Studios to create a new standard for audio reproduction to ensure quality and uniformity across all theater systems intending to play their audio.
Benefits of THX Certified Speakers
- Crisp, clear sound fills your room: THX Ultra 2, Select2 and Multimedia speaker certification categories deliver amazing performances based on your room size.
- Intelligible dialogue and ambient sounds: THX Certified Front Speakers feature Controlled Directivity, both vertically and horizontally for the best audio experience wherever you sit.
- Smooth panning from your TV: THX Certified Surround Speakers feature THX Technologies to ensure the best possible playback experience.
- Powerful studio volume: THX Reference Level delivers studio volume and fidelity with low distortion and noise.
- Easily mix and match brands: With a single standardized bass configuration, you can easily and confidently use any THX Certified product together.