Updated: 21/10/08

Why Do I Need..?
 

What are our products used for - when might you need them, why might you want them:

 

3D Visualisation

For displaying 3D modelling software. Typical uses/markets:

  • Manufacturing - design and sales
  • Education - chemical and molecular science, biology and medical
  • Geology
  • Life sciences - molecular analysis

An Audio Conferencing System

  • To communicate verbally 1 to 1 or 1 to many without the need to travel great distances

    Advantages over a standard speaker phone:
     
    • Clarity of audio transmission and receipt
       
    • Adaptive Modelling

      In any conferencing environment, a number of factors can cause changes in the room’s ambient noise level, including the HVAC system cycling on and off, an increase or decrease in the number of people in the room, changes in seating arrangements and other similar acoustical events. These events can cause a variety of audio problems, such as feedback and residual echo. Adaptive Modelling monitors key acoustical elements to predict and adapt to such changes, ensuring high quality audio, regardless of varying room dynamics.
         
    • Distributed Echo Cancellation

      One of the challenges in delivering good sound quality during a conference call is eliminating acoustical echo. Acoustical echo results when sound from the far end phone device is sent into the local conference room, where it is picked up by the microphones on the conference phone and then sent back to the far-end phone device. Because of this process, far-end participants hear their voice echoed as they speak. Distributed Echo Cancellation from ClearOne solves this problem. By assigning an acoustical echo canceller to each microphone, the echo canceller identifies the sound that would otherwise be returned to the far end as echo and eliminates it. ClearOne was the first to introduce Distributed Echo Cancellation in 1998, incorporates it into every audio conferencing system, and is the world-wide leader in this technology.
       
    • First Microphone Priority

      When multiple microphones are active simultaneously in an audio conference phone, voice signals arrive at different microphones at different times due to the reflection of the sound from walls, ceilings or other surfaces. This causes sound distortion, which participants typically describe as a “hollow” or “tunnel” sound. ClearOne’s First Microphone Priority technology minimises this distortion by using an intelligent voice detection method to prevent more than one microphone activating when a person speaks.
       
    • Noise Cancellation

      Noise Cancellation stops ambient room noise from being picked up by the microphones on the conference phone. Examples of ambient noise sources include HVAC systems, laptop computers, projectors and fluorescent lights. Unlike competitive products, which claim to have noise cancellation, ClearOne uses a spectral content analysis technique that discriminates a talker’s voice from ambient noise and only applies noise cancellation to ambient noise sources. This allows the voice signal to pass to the far-end phone device with pristine sound quality.
       
    • Multi microphone positions

 

For further information go to ClearOne website

A CAT5 transmitter/receiver

  • To transmit RGB, video, audio over long distances
  • To make use of existing CAT5 cabling
  • To save money using low cost CAT5 vs coax

Kramer's Category 5 transmitters and receivers are a versatile family of products that permit long-distance distribution of RGB video, composite video and stereo audio over unshielded twisted pair (UTP) cable. CAT5 UTP cabling is a fraction of the size of coax cable, as well as being much lighter, more flexible and less expensive. Termination of the CAT5 UTP cable with RJ45 connectors is simple, quick and economical.

For further information go to Kramer website

A Control System

  • To simplify and automate a facility so that it has a single, easy to use, remote control device.
  • To integrate many different types of audio visual equipment and make them work 'as one'.
  • To co-ordinate the lighting and curtains or blinds together with the audio visual equipment to create 'the right' environment.

For further information
view application diagram
(complex system, AMX Systems)
or go to AMX website

Minicom, digital signage distribution systems

Digital Signage is the use of digitally powered signs such as plasma display panels, liquid crystal displays (LCDs), kiosk stations, and computer monitors to replace and enhance traditional media.

Digital signage is new media and has much more in common with the web than the static sign that it replaces. Digital display networks get the message across in a way that static posters and billboards never could. Large, flat panel, plasmas and LCD screens are now everywhere, and they are grabbing advertising share from more traditional forms of advertising.

Flexibility of real-time advertising and information
Digital advertising can be changed on the fly according to the time of day.

Targeted audiences
With digital signage, advertising focuses on the best potential customer: an existing one. It's much easier to convince a current customer to purchase a product that is right in front of them than to convince a new customer to come to the store.

Cost savings
Every time digital signage users change their message or campaign, they save on printing costs and processing time.

Metrics
Digital advertising is more measurable than more traditional forms of advertising.

Increased sales
In-store digital signage can increase sales for most products, and generate impulse sales for products.

More educated consumers
Most consumers view informational signage as positive, which helps brand businesses as consumer oriented.

For further information go to Minicom website

A Distribution Amplifier

  • Distributes a signal to more than one display device -
    ie local monitor and a projector
  • Drives a signal over longer distances

A distribution amplifier is a product that distributes multiple outputs from a single source input. Distribution amplifiers are used in applications that require multiple projectors or monitors to display the same source's image simultaneously.

Distribution amplifiers not only split a signal, they may also provide amplification and enhancement features for the signal. Each of the outputs is buffered so that when the original signal is split, it will still retain its clarity and strength. Our distribution amplifiers are designed to ensure that the original integrity is maintained whether the signal is being split twice, four times or ten times.

For further information go to Kramer website

Edge-blending

When a very large seamless image is required. Typical uses/markets:

  • Control Rooms-transport/security/military/services
  • Large conference/meeting rooms
  • Exhibitions
  • Reception/lobby display
  • Retail
  • Sports bars

How does edge-blending work? The original signal is split into individual components to match the number of projectors being used. Where the images are to be blended, the brightness at the edge of the image is graded (reduced) so that when the images are overlapped, it is almost impossible to see the join. This enables very large seamless images to be created.

 

An AV Equipment Rack

  • To mount and store the audio visual hardware in a single, easy to manage, neat and tidy location
  • To enable the majority of the wiring to be loomed and managed in a purpose built enclosure
  • To provide easy access to the front and rear of the equipment for installation and maintenance
  • To provide a thermally managed environment for the AV hardware
For further information go to Middle Atlantic Products website

A Scaler

  • Scalers scale signals up or down.

    Some scalers scale PAL/NTSC/SECAM video up to analog RGB at computer-video or HDTV resolutions. These up scalers are ideal for applications requiring video to be viewed on higher resolution VGA monitors, LCDs, DLPs or Plasma displays. Up scalers convert the H&V sync timing and number of lines for the video input to match the native resolution of the display device. The resulting image is undistorted and brighter because the image fills the entire screen without being stretched out and all the device's pixels are illuminated. Other scalers scale computer video signals up or down, depending on the native resolution of the display device. These up-and-down scalers are useful for viewing images on digital display devices, especially applications requiring computer video from high-resolution workstations to be displayed on lower-resolution devices such as LCD, DLP or plasma displays.
For further information go to Kramer website

A Switcher

  • Convenience - When multiple sources are being sent to a single display device and the user does not want to have to move the cables from one source to another

A Switcher is a device that enables multiple signals to be selected and sent to one presentation display. Source signals may be selected and viewed on the presentation display, one at a time. For example, when trying to display two computers with separate PowerPoint presentations, you would use a switcher to physically connect both of the computers to the display device. The switcher would then allow you to select between the two computers and display your selection on the display device. Switchers have a variety of control/remote control options available: push button, wired handsets, wireless handsets, autoswitch modes and contact closure or RS232 for use with room control systems, computers, etc.

For further information please view application diagram or go to Kramer website

A Matrix Switcher

  • Convenience - When multiple sources are being sent to multiple display devices and the user does not want to have to move the cables from one source to another.

A Matrix Switcher is a special type of switcher that routes multiple inputs to multiple outputs. Matrix switchers are commonly used in applications where several inputs need to be routed to several output devices, such as data or video projectors and monitors. Thus, Matrix Switchers provide the ability to route "any input to any output at any time". For example, input 1 can be routed to output 1 or output 2; input 2 can be routed to outputs 3 and 4; and so on - in any combination.

Essentially, a matrix switcher consists of a series of distribution amplifiers and switchers, which are housed in a single enclosure and controlled by either a front panel controller, a room control system or using a PC with the RS232 software provided.

For further information please go to AMX AutoPatch website

Projection Screens - What is the difference

  • A "Permanently Tensioned" screen is stretched on a frame, and is designed for mounting on the wall. It is typically used in a dedicated viewing room where the screen remains in place at all times.
  • A "Manual" projection screen is usually retractable, and may be ceiling or wall mounted, or it may be portable. Draper offers spring-roller and crank operated manual screens.
  • A "Motorized" projection screen is retractable and operated by a motor. It may be installed to wall or ceiling, or recessed in the ceiling.
  • Gain
    A relative measure of a screen's reflectivity. (click here for more information)
  • Contrast
    The ability to accurately reproduce and differentiate light and dark characters and backgrounds, or light and dark areas of an image. Ambient light rejection properties: the ability to perform well under normal to adverse lighting conditions in the audience area.
  • Resolution
    The clarity of the projected image.
  • Uniformity
    The screen's performance when viewed from various points off the projection axis (both horizontally and vertically), and when the brightness of the center of the image is compared to the corners.
  • Projection Format
    The height and width of the projected image determines the screen's size and shape (AV, NTSC, HDTV, WideScreen, CinemaScope, overhead, slide or motion pictures).

Remote Media signagelive® web based software

Key features of signagelive®:

  • Compatible with a comprehensive range of digital signage hardware from 4” shelf-edge screens through to the latest 70” digital poster unique to Remote Media signagelive®.
  • Multiple methods of communication from each location to the signagelive® servers including; standard phone line, ISDN, ADSL, GPRS/3G mobile telecommunications and satellite.
  • Upload and store your media content on the signagelive® servers ready for scheduling and distribution to your connected screens across thousands of sites.
  • Auto-archiving of media to ensure old content is separated from media currently in use.
  • Create and store multi-zone layouts incorporating live streaming, stored media content and RSS/XML news feeds.
  • Group your sites and screens as you require to enable quick and easy update to multiple screens or an individual screen as and when you require.
  • Distribute your playlists and media content in advance with date and time specific instructions ready to commence playback when and where you require.
  • Every time a piece of media is played the date and time is stored in signagelive® and is available in a range of reports for internal use or to prove to third parties that their advertisements have been played.
  • Comprehensive live diagnostics displayed in a graphical format showing the status of every screen connected to signagelive® including automatic notification of screens that cannot be reached by signagelive®.
  • Extensive security enabling the set-up and management of users with total control of access rights. Detailed audit trials for all signagelive® activity by individual user are stored and available for reporting by administrators.
  • signagelive® has been developed to enable seamless integration with media planning and account systems proving a fully automated digital signage solution tailored to individual requirements of our customers

A Scanconverter - Down

  • Enables display of a high resolution image on a lower resolution display,
    e.g. VGA to a video monitor
  • Enables recording of high resolution images onto video tape

Scan converters are used to convert computer-video with high frequencies (about 31 KHz and above) to standard PAL or NTSC video with a lower frequency of approximately 15.75 kHz It is not possible to connect a computer to a television monitor and display a computer-video image. However, by using a scan converter, high frequency computer signals are converted to lower frequencies. This conversion allows a computer image to be displayed on both the regular TV and the computer's local monitor. This is significant for those who need to show a computer-video presentation on a display to ensure that all can see the screen. Scan Converters are also essential for applications such as recording computer-video onto videotape and for videoconferencing where users may want to show high-end computer generated graphics.

For further information go to Kramer website

Stereo 3D - what is Stereo 3D and how is it achieved?

  • Passive Stereo

    Passive Stereo 3D means you can see two 3D images put together as one. Cyviz convert an incoming stereo 3D signal to two monitor signals, one for the right eye and the other for the left eye. The signals are then routed to two projectors, which are stacked and project images in register. To obtain a 3D effect, or polarised filter is fitted in front of the lens on each projector, the combined image must then be viewed through polarised 3D glasses.

    The projectors provide two slightly different projections of the 3D software model. The light from one projector is polarised 45 degrees and the other by 135 degrees. By using the special glasses, a stereo sco-pic image is created. The effect is similar to the one created by ‘active stereo’, though there is no flickering experienced on these glasses.
     
  • Active Stereo - What is an active stereo system?

    The term ‘active stereo’ refers to the use of the glasses with liquid-crystal shutter lenses. In conjunction with compatible software, these glasses ensure that the frames specified for the left and right eye respectively, are correctly displayed. To achieve flicker-free viewing, the frequency must be above 96Hz or rather 43fps (frames per second). This solution is expensive to use due to the high cost of the shutter glasses.

A Video Visualiser?

A Visualiser, also known as a document camera, is used to display and scan in a variety of items:

  • Printed Matter
    - Documents
    - Newspaper
    - Books
    - Photographs
  • Solid Objects
    - Products
    - Samples
    - Exhibits
  • OHP transparencies (without the need for an OHP projector and screen)
  • 35mm slides (without the need for a 35mm projector and screen)
  • X-ray film
  • Objects/scenes beyond the camera (by tilting/rotating the camera)

They have many applications and this versatility makes them invaluable in a support role for many presentation environments:

  • Presentations
    -
    Display products
  • Video Conferencing
    -
    Show detailed printed matter
    - Show objects
    - Show objects/scenes beyond the visualiser
  • Brainstorm meetings
    -
    Display notes as they are made
    - Scan in for records/distribution
  • Training
    -
    Display objects
    - Role play using camera
  • Medical
    - Display X-ray film
    - Display actual bone and tissue samples
  • Councils
    - Display plans
  • Courtrooms
    -
    Display evidence

For an independent review of the Samsung SDP-950DX Video Presenter click here.

For further details of the award winning Samsung SVP-5500ST Video Presenter - best budget buy at the 2002 Standing Ovation Awards - click here.

For further information go to Samsung Website

Sharp HD LCD Professional Screens

  • Offers the highest quality, full High Definition display, for a more true life colour reproduction and crisp image.
  • Portrait and landscape formats offer flexibility in design and installation.
  • Images viewable from up to 176o horizontally and vertically, so won’t exclude any of your audience.
  • Ruggedised casing to minimise from daily wear and tear.
  • Can be used in a variety of applications. For example hospitality, education, retail and visitor information.