Showing posts with label technology. Show all posts
Showing posts with label technology. Show all posts

Thursday, March 15, 2012

THX certified speakers in india


What is THX sound certification?
                It is a quality certificate indicating that the theatre or sound mixing studios have met some standard quality requirements. It is given by company of George Lucas legendary director of star wars series. Usually the theaters with THX certification will give you great sound experience especially with movies that are mixed in THX studios.
Need for certification:
                Whenever a scientific experiment is carried out in labs there is some standard conditions under which it is done and it is specified along with results. This may include temperature pressure humidity etc. If these conditions are changed the results might be different from what obtained. Usually performances of automobiles are given under the specific conditions but we usually do not get same on road performance because of change of condition.
                The process of creating sound in studio can be considered as equivalent to a scientific experiment. The sound engineers are designing sound in a studio conditions, if the theatre condition is widely different from that of studio then we are not getting same result as in studio and result might be unpredictable.
                How can we overcome this problem? By specifying some standards and ensuring that it is followed at both ends. That is at the production stage and hearing stage. THX certification ensures this. They give their approval theaters and studios which meet this criteria.
                So this certification process is highly beneficial for both sound engineers and movie lovers.
In India best way to experience the quality of THX sound certification is buying speakers which are THX certified and arrange it as per the specifications given in website.Some of the THX certified speakers available in India are

Wednesday, November 16, 2011

Technical: Pico Projectors



The widespread development in fields communication and integrated circuit technology have resulted in miniaturization of most devices. Most handheld devices are capable of carrying  large amount of data. They handle small office documents to high definition movies. But the reduction in size of devices have resulted in reduction of area available for viewing screens. This reduction in size of screens is a barrier in reducing the size of multimedia devices below a particular level. If we can provide enough viewing area without increasing the size of devices then it will provide a better experience for the users. Only way to accomplish this is by incorporating the technology of projectors to handheld devices. But todays projectors are bulky and their  size cannot be reduced to meet our requirements. The research in this field have lead to the development of ultraminiature or pico projectors.It is basically extremely small projectors which fit into tiny devices.
            First generation of pico projectors produced low quality images and have to be cabled to a computer.  Due to  these limitations it did not get much recognition from common people. People wanted mobile phones, laptops or portable mp3 player capable of producing big, bright and sharp images or an extremely small projector which is compatible with these devices. The recent developments in this technology seems to satisfy these requirements. We are about to watch next generation pico projectors  which will come embedded in cameras, media storage devices and smart phones. Over next few years we will see more products which will use this new technology to its advantage.
Types:-
  Embedded :-The pico projectors which comes embedded inside the mobile devices like camera and mobile phones.
  Plug and play:- The projectors which are plug and play compatible with the handheld devices.
Media players:- These types of pico projectors have got internal memory and are capable of carrying images and videos and can be used as media players.
Pico projectors can also be classified according to the technologies used for projection. Four technologies that have been developed for projection at such small level are LCoS[liqud crystal on silicon], DLP[digital light processing],  scanning mirror systems or laser beam steering and Holographic projection technologies. Among these technologies LCoS and DLP are used in normal projectors and they have been adapted to meet the requirements at small size. Others are recent developments in this field and have got their own advantages.
APPLICATIONS
 Picture browsing
             Nowadays mobiles and cameras are capable of taking high resolution pictures. But due to the small size of screens we have to plug it into computers to watch it in actual resolution and analysis. Pico projectors can be a solution for this problem. These projector phones will allow us to share photos in mobile phones or cameras with a large audience. We can analyze the photo at the spot of taking and retakes can be carried out if required.
Gaming
             Mobile gaming will be taken to the next level with the advance pico projectors. Full possibilities of handheld projector gaming can be only realized in future. But gaming companies will get a new market and they will explore its possibilities.
Movies and channel broadcasting
            Another field which will be benefited from pico projector  will be mobile television. A large audience can watch movies or other channel programs from a single mobile device. With advance of 3G and 4G technology mobile broadcasting will become more common and pico projectors can improve its possibilities