DemolandiaDemolandia is, essentially, a modest audiovisual library where you’ll be able to find a great variety of high-res images, wallpapers, audio and video files, besides useful information for those technology lovers, especially in the audiovisual area. Since 2010 we’ve persistently tried to put a wide array of tools to our users’ disposal to put every one of their audiovisual devices to the test, no matter the spectrum.
But, what do we mean exactly?Each audio device we acquire comes with several specs and certifications that guarantee a certain fidelity level in the sound that will come out of them. At Demolandia we’ve taken the task of putting together a database of the most important and useful demos, trailers and tests that have appeared through the years along those mentioned devices; always coded in a lossless format to guarantee the absolute fidelity, thus ensuring an accurate testing of your speakers, amplifiers, headphones, or any other sound device’s performance. Read More
So, in the end, who are we?We’re nothing but technology enthusiasts; lovers of high fidelity and quality that have decided to make it easy to our users to exploit the maximum potential of every audiovisual device they purchase, also providing a historical background of the evolution of said technology that fascinates us so much. So, if you’re one of those geeks that check every single mark in the back of the box of every piece of multimedia you acquire, you’ve probably come to the right place.
|Most Popular Sections|
|Dolby Digital, True-HD and Atmos trailers44|
|DTS, DTS-HD, DTS MA and DTS:X Trailers27|
|4K UHD Trailers29|
|Highest Rated Downloads|
|Dolby Countdown v2|
|Dolby Atmos Silent|
|THX Eclipse Long|
|DTS:X Sound Unbound Callout 11.1|
|IMAX Pre Show 2015|
Featured Movie Trailer HDYou can see more videos on the Movie Trailers HD section.
- Valerian and the City of a Thousand Planets - Fireside Chat on July 20, 2017 at 8:00 am
Valerian and the City of a Thousand Planets is the visually spectacular new adventure film, based on the ground-breaking comic book series which inspired a generation of artists, writers and filmmakers. In the 28th century, Valerian and Laureline are a team of special operatives charged with maintaining order throughout the human territories. Under assignment from the Minister of Defense, the two embark on a mission to the astonishing city of Alphaâ€”an ever-expanding […]
Home Theater Trailers Resolutions:
SD: (480p, 576p):For SD Dolby intros, the most usually format is the MPEG-2 format a resolution of 720×480 pixels (NTSC) and 720×576 (PAL), using an average bit rate of about 5 Mbps (variable bitrate mode, which distributes the bits available according to the complexity of each frame). The maximum allowable rate is 9.8 Mbit/s, which is rarely used for practical reasons. The common container for SD trailers is vob. Most commercial DVD publishers often use maximum values of 7.8 to 8.5 Mbps, is possible to use a special mode called “16:9 anamorphic” that encoding a panoramic film using all the available resolution; in fact the vast majority of widescreen movies on DVD are encoded in this resolution, without recording the black bars as if it was part of the image. Just needed the black bar is added to fill the image to a 16:9 (if movies with an aspect ratio greater than 16: 9, such as 21: 9 format that usually abound in today's cinema). Click here to Read More
HD ready (720p):HD ready 720p is the short name for a HD video mode, mainly used in high-definition television (HD TV). The number 720 represents 720 horizontal display resolution lines, while the letter p means progressive scan. The common format for Distributors Demo Trailers HD is m2ts and mkv. The resolution for this HD format is 1280×720.
Full HD (1080p):
UHD 2K:It is an emerging UHD standard for digital film resolutions and computer graphics. The name derives from the horizontal resolution, which is approximately 2,000 pixels. 2K represents the horizontal resolution because there are numerous aspect ratios used in films. The vertical depends on the aspect ratio with which the director decides to work. The resolution of UHD demos is 2,048 × 1.0803 (17: 9) and 2.2 megapixels. There are some utilities to test the correct UHD 2K and full 4K calibration in our Screen Test section.
UHD 4K:The UHD 4K name derives from the horizontal resolution, which is about 4,000 pixels. UHDV 4K (2160p) used in the digital television. There are different resolutions for the UHD 4K Video Sample that qualify as UHD 4K:
4096 × 2160 (17:9)2 (8,8 megapíxeles) – Full UHD 4K
3840 x 2160 (16:9) (8,3 megapíxeles) (4K UHDV)
DTS Trailers (Digital Theater System):DTS Demo Trailers HD have digital audio encoding surround system that allows 6 independent surround audio channels into a single DTS compressed signal. Apart from being used for DTS trailers, DTS also used in films and “special places” such as theme parks or virtual simulators, in which case can hold up to 8 independent DTS surround channels into a single signal, and can synchronize multiple signals to get a fully independent unlimited number of channels.
THX Trailers:THX is a high-fidelity audio and video standard for THX movie theaters and home theaters compatible systems. THX certified was created in 2002 developed by Tomlinson Holman at THX George Lucas company. In 1983, to assure that the soundtrack for the third Star Wars film, Return of Jedi would be accurately reproduced in the best places. Click here to Read More
THX is not a recording technology format for the THX Demo Trailers HD: All sound are encoded in digital formats like Dolby Digital, SDDS, DTS or analog like Dolby Stereo or Stereo Ultra can be shown in THX. It is primarily a quality assurance. You can find a lot of vob, m2ts and mkv demos on Demolandia for testing it. THX certified theaters provides high-quality, predictable video and sound environment to ensure that any soundtrack reproductions such as those in our Speaker Test section mixed in THX system will sound as near as possible to THX sound engineer intentions.
THX provides certified theaters with a special crossover circuit. THX certification of the auditoriums includes specific acoustic and other technical requirements like floating floor, acoustically treated walls, walls without parallel walls (to reduce standing waves), a perforated screen (to ensure continuity in the center channel) and NC30 rating of background noise (avoid the noise provided by air conditioners units and projection systems). THX Ultra, THX Ultra2, THX Select, THX Select2 are the different quality THX certifies.
Dolby Trailers:Some Dolby Demo Trailers HD are Dolby Digital and also DTS. For the sound part of a movie to fit on a file, the part corresponding to the sound data, such as MP3, is compressed (by mathematical techniques). For its part, DTS uses to encode sound larger data and, therefore, the sound quality is a little better, it is cleaner. The differences between Dolby TrueHD and DTS-HD are, however, barely audible. Dolby Atmos technique was introduced in 2012 and allows a maximum of 128 audio tracks. So far there is only Atmos sound in a few movie theaters.
3D Video Types:
3D Anaglyph Demos:3D Anaglyph were for decades the most popular 3D passive glasses. The anaglyph 3D glasses use color filters (red-blue, red-green or amber-blue), which allow to display different images to each eye, giving an 3D effect of relatively convincing depth.
3D SBS Trailers (Side by Side):Today are mainly used in 3D cinemas the passive Polarized glasses. These 3D glasses filter light waves coming from different 3D screen corners, allowing each eye receives only the polarized image that corresponds. These 3D system has been more popular than anaglyph because they do not use color filters that could distort the original image color. The 3D Video intros uploaded in 3D section for polarized glasses are known as 3D SBS (Side by Side). Click here to Read More
3D Active glasses:3D Active glasses uses LCD (liquid crystal technology). It has infrared (IR) sensor that allow to connect it wirelessly with the 3D TV. In this 3D system, the two images are not displayed while it is turned on and off at high speed. The liquid crystal 3D glasses alternate between a “transparent” mode and “opaque” mode while the images are alternated on the 3D screen, for example, the left eye is blocked when the right eye image appears on the 3D TV and vice versa. This happens so fast that our mind can not detect the flicker in the 3D TV.
VOB Trailers:DVD-Video Object o Versioned Object (vob) Base is a file type contained in the DVD-Video. Includes menus, video, subtitles and audio in stream format. The VOB intros are encoded normally by following the MPEG-2 standard. If we change the extension .vob to .mpg or .mpeg, the file is readable and continues to have all the information, although some players do not support subtitle tracks. To burn the VOB files onto a DVD ± R, are needed in addition other DVD-Video files, such as IFO and BUP.
M2TS Intros:MPEG-2 Transport Stream (m2ts) is a container file format extension used for the HD Blu-ray Disc audio and video (BDAV). It is used for multiplexing video, audio and other streams. This format is commonly used for the high definition intros and video Blu-ray Disc and AVCHD. Click here to Read More
Matroska Demos (MKV):It is an open standard container, a file that can contain an unlimited number of pictures HD videos, subtitles or audio tracks inside a single file. Its purpose is to serve as a universal format for storing audiovisual and multimedia content, like HD movies or TV shows, video games, images and texts. MKV is the mots common format for our new IMAX Demo Trailers HD section. It is not a video codec like H.264 / MPEG-4 AVC or vorbis for the trailers, it is a container that contains audio, video and subtitles inside the same package, which allows you to play the demos on computers and other devices.
QuickTime Format:The QuickTime format with mov extension is the most common format for the Movie Trailers HD section. You need a video player compatible for view the latest film trailers.