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What Will Home Cinema Look Like in A Few Years Time
It is only recently that home cinema has grown to become a meaningful concept for most consumers. Previously the technologies and hardware requirements to create anything that could realistically be called a home cinema was the preserve of the rich and even then was of limited capability. The upsurge in manufacturers combined with the rise in price comparison sites has meant they are now more affordable.
There have been a series of recent major changes in the technologies of displays, surround sound and data handling that have begun the real home cinema revolution. With these changes what can we look forward to in the future, what will change with displays and speakers over the next ten to twenty years?
So what are the technologies that have driven the recent advance of home cinema? The most powerful driver has been the enormous increasing in screen size and resolution that’s followed improvements in flat panel technologies. Many households now have LCD (liquid crystal display), TFT or plasma screens which take up a fraction of the space of their bulky CRT (cathode ray tube) forebears. Large versions of these sets are also far more affordable than the large CRTs were and by being flat screen offer much improved flexibility when it comes to placing them in people’s home cinema, such practical advantages should never be overlooked. These displays have mirrored the improvement in the format – HD signals and media are far higher resolution images with higher refresh rates to fully take advantage of the capabilities of modern home cinema displays. Whilst broadcast programmes available in HD are still in the minority consumers have quickly recognised the advantages of the large, sharp flat screen displays.
The other big shift recently has been in the digital storage medium with the slow transition from DVD to Blu-ray. Blu-ray has the necessary data storage to fully support high definition TV movies with multi-channel surround sound and the sorts of out-takes and optional extras consumers now expect. Blu-ray began life in competition with the HD-DVD format, much like the VHS versus Betamax video format war, it beat out its competitor with a large part of that advantage coming from Sony’s adoption of the Blu-ray format on their Playstation 3 console. The console offers the ability to act as a Blu-ray disc player for shows and films with its subsidised hardware (the price to the consumer was lower than the cost price of production as Sony expected to make up the value on games sales) making it difficult for HD-DVD to compete for home cinema.
This year’s other big story has been the slow failure of 3D display technology, both in the cinema and for home cinema displays. Initially touted as the next big thing at the 2010 CES (Consumer Electronics Show) with all of the major manufacturers developing sets it now seems to be another cycle of the 3D fad once more failing to grab the attention of consumers. The drive toward this new wave of 3D displays was really ignited by the release of James Cameron’s Avatar. It wowed audiences with its intricate imagined world, realised in full 3D and displayed on the new 3D cinema display technology that was being pushed on cinema chains by the Hollywood industry.
The format was being pushed so hard both because it allowed cinemas and thereby Hollywood to charge a premium on each ticket sale without significantly increasing their own costs and as a counter-reaction to piracy- it was believed that 3D made it impossible to record films showing on cinemas which were then redistributed via bit-torrents on the internet and made the copying and distribution of 3D media harder as users would need to have bought 3D displays to watch it. Consumers have gradually lost interest in 3D over the year as the films following Avatar were mainly produced in the normal 2D manner and then converted to 3D with post processing. This both looks bad and has caused many audience members to report headaches and nausea, issues that also dogged prior versions of 3D. People have also found that they don’t like the 3D glasses with them being uncomfortable, annoying to keep track of your own copies or expensive to replace at the cinema, most damningly getting in the way on dates and not fitting with some people’s prescription glasses. These issues have all spilled over in to the home market for home cinema 3D displays.
The future of home cinema displays is likely to be a continual improvement in size, power efficiency and resolution as flat screens grow and the HD format is progressively improved to take advantage of this progress. Screens may also become flexible letting people store them in a rolled up form in the ceiling, a significant advantage as future screens grow toward the point where they will occupy the whole wall in a normal home cinema.
The area that will see the biggest change in home cinema over the next ten to twenty years is likely to be surround sound speakers. Until now most consumers who are not hi-fi buffs have practically ignored them, using the built-in speakers in displays that produce a limited range of frequencies with poor performance in some of those ranges and unable to take advantage of the now common-place Dolby 5.1 Surround sound technology which requires five speakers: left, centre, right, left surround and right surround channels with the decimal number referring to the subwoofer. Flat panel speakers are slowly becoming an affordable technology for the home cinema set ups of a larger proportion of consumers, having a major impact on the reality of home cinema as it becomes far easier to place speakers in a room to correctly create a surround sound system, indeed the speakers may become so small and affordable that the more advanced Dolby 6.1 and 7.1 systems which require one or two additional speakers come into wide usage.
Future speaker technologies will expand on the current flat-panel speakers using new methods to create sound that increases the frequency range and power within those ranges and greatly reduce prices as these become normal consumer items instead of the province of the high end only as they are at present. Traditional speakers work by driving the movement of a diaphragm (the speaker cone) back and forth using an electro-magnet with an alternating current passing through it. Each change in direction of the current causes the cone to move back or forth, creating the waves in the air that make up sound and carry it to your ear. Flat-panel technologies have a large, flat surface that follows the same function as the cone of a normal speaker but is driven in a different way.
Flat panel speakers have three major benefits over conventional speakers – they are a non-directional sound source, meaning it matters far less where you are in relation to the speaker to listen to them, in contrast to conventional speakers which are known as point sources and only allow for an optimal central listening position. The fall-off in the volume of a conventional speaker is far sharper than that of a flat panel, compare the small area moved by a normal speaker to the large surface of a flat panel, as you move further away from a flat panel you experience less loss of sound, again improving their ability to fill a space with sound and greatly improving their usefulness in roles such as surround sound. The final characteristic that differentiates flat panel speakers from conventional ones is the phase orientation of the sound, due to the shape of the sound waves normal speakers produce the waves at the edges, interacting with real world obstacles such as chairs and tables will add or subtract from the other sound waves creating unevenness in the sound. Flat panel speakers are far more resistant to this effect, again an advantage for surround sound use and making them a much better way of filling a space with sound in a normal home.
Wireless signal and power transmission technology will drive the other big change in home cinema technology, furthering the increased ease of device placement. Wireless signal transmission has become standard for mobile devices such as laptops and mobiles as well as most user’s home internet set ups, the next step is wireless video signal transmission which requires a significant increase in the available bandwidth and this will also be seen in speakers with all future speakers not built into devices likely to be wireless, making their placement for surround sound systems far easier and more practical as cables no longer take up space, limit where speakers can be placed relative to the sound signal output making surround sound set ups far harder, nor act as a messy hazard for tripping over them. Wirelessness in all devices will be a part of the general integration of all household devices from hi-fi, TV and games console to the desktops, laptops and mobile phones of the entire household as well as white goods such as the washing machine and clothes drier. All of these devices will communicate allowing you to control them remotely from a mobile phone. The home cinema is likely to spread from its central location throughout people’s homes with rooms having their own displays and surround sound speakers, all of which will let a programme, film or piece of music follow you throughout the house as you move around.
These changes in home cinema will lead to huge improvements in the quality of consumer experience with larger displays and speakers with far greater flexibility in their set up and placement creating sound surround and visuals that will far outclass that of a modern day cinema. Speakers will be one of the areas that show the most progress as new technologies allow them to become ever flatter with a greater range of frequencies and power at specific frequency ranges.
About the Author
Nigel Smith writes about price comparison sites for home appliances home entertainment systems – he is currently creating buyers guides based on real consumer experience for http://www.comparestoreprices.co.uk/
Reservoir Dogs Blu-ray Review
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Hotel for Dogs [Blu-ray] $9.71 Adapted from author {$Lois Duncan}’s 1971 {\children’s} book of the same name, director {$Thor Freudenthal}’s {#Hotel for Dogs} follows two mischievous orphans as they attempt to hide dozens of stray dogs in an abandoned hotel. Disheartened by their new g |
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