Polycom Video Conference Unit Qdx6000
Around ten years ago, video conferencing system were complicated and erratic. It also ran on expensive, closed high-speed phone lines. But over the last decade, video conferencing system –like perhaps everything else in the field of technology—migrated to the internet. Now, most business use internet protocol of video conferencing to connect with colleagues and customers. Most of these new systems were designed with visual and audio clarity in priority.
The entire process of video conferencing rely on a MCU or Multipoint Control Unit. MCU is a bridge that connects three or more remote sites so participants can interact with each other in either ISDN (Integrated Services Digital Network) or IP basis. For joining a conference, participants will be required to dial an ID or unique phone number which will connect them to the MCU. In general, MCU unit consists of a multipoint controller and a multipoint processors. It sometimes also includes particular software to enable special features in video conferencing such as video annotation or dual streaming.
One of the major brands that produce high end type of MCU is Polycom. The brand which is known for its video conferencing units, offers MCU unit in both embedded model or a stand alone unit. If the video conferencing involve multiple participants, it is important to know that video conferencing system works in two different modes: voice-activated switch and continuous presence. In the former system there will be only one site displayed or one people do the talking at one time. The system usually would choose the loudest voice. While in the recent video conferencing model, different sites can be displayed in a split screen format.
Polycom (http://www.polycom.asia/products-services/products-by-environment/conference-room.html ) first entered the video conferencing market in 1998. At the time, Polycom introduced the ViewStation product line which included models with embedded multipoint capabilities, content sharing capabilities, and support for the emerging H.323 IP network protocol. Two years later, Polycom introduced a personal desktop video conferencing appliance called ViaVideo. The compact device was a web cam model with inboard processing capabilities which functions to offset the compute limitations of most desktop and laptop computers.
QDX6000 Polycom Conference System which leverages H.323 (http://en.wikipedia.org/wiki/H.323) for call signalling is a compelling choice for smaller office and business needs. The QDX6000 Polycom Conference System is not HD-capable, it is a DVD-quality resolution with CD-quality. Providing adequate video in well-lit rooms and an excellent audio as well as massive options for adding content to the conference from peripheral devices. Despite it is not a HD-quality, the Polycom conference system is easy to set up, simple and affordable. Users will be able to do the setup in no time.
With a price range starting from 3.999 US Dollar, QDX6000 Polycom Conference System is positioned as a low-cost video conferencing solution. The Polycom Conference System delivers 4CIF (Common Intermediate Format) format video from the included camera of up to 704-by-576 resolution or content resolution of up 1.024 by 768.
QDX 6000 Polycom conference system has several outputs to enables simultaneous show video on two screens. The first one is a primary output via component, RCA or S-Video cables, and the second via VGA , RCA or S-Video. Both outputs in Polycom video conference system can be configured for 16-by-9 or 4-by-3 aspect ratios. However, the on-screen menus and controls will only be displayed on the primary screen.
On the primary output, QDX 6000 Polycom Conference System offers several picture-in-picture modes. Allowing users to select whether they want to show either the local or remote side of the call, show both side by side, or show remote connections in smaller boxes on the right. Whilst the secondary monitor typically shows the local video source.
QDX 6000 Polycom Conference system may not be HD-capable but the unit provided an adequate picture in tests. In particular when displayed on an older tube TV or smaller HD panels. However, pictures were a little darker than the HD-quality ones.
As a video conferencing system, QDX6000 Polycom Conference System provides video calls at a variety of bandwidth levels, ranging from 256K bps up to 4,096K bps (at 30 frames per second). But when it is connected to larger panels, especially at lower bandwidth usage, the picture became noticeably pixelated with movement on screen. Which is why for larger screens, it is better to use at least the 1M-bps connection rate.
Each box of QDX6000 Polycom video conference system enclose all the cables needed to connect the unit including the camera and microphone pods, as well as cables to connect the video conferencing system to a TV. There is one cable that quite necessary but not include in the box, it is a VGA cable to attach a PC for input or a monitor for display. However, users will able to connect a PC directly to the QDX6000 using the VGA input port included in the unit, or they can connect over the network using Polycom’s Windows-based people + Content IP application.
QDX6000 Polycom video conference system also includes a variety of input ports. Allowing users to switch the source from the primary camera to an external camera, a DVD or VHS player and a connected PC for presentation sharing. Yet please note it is limited to H.239 (http://en.wikipedia.org/wiki/H.239 ) compatible devices.
The Polycom video conference system supports Polycom’s Stereo Surround feature which can be toggled off if necessary. Polycom’s Stereo Surround enables user to capture and process both audio streams separately.
Apart from the on-screen controls, the QDX6000 has a built-in, Java powered Web management page. From the Web console, administrators can easily populate the local directory, tweak settings, view call detail reports or manually place calls. Although the QDX is limited to the ability to schedule calls. As for firmware updates, it can be done via another tool that runs on a Windows PC. When it is triggered, the tool searches the network for QDX units available for upgrade. The Polycom video conference system also comes with Polycom’s Lost Packet Recovery. The tool is said enables the QDX to offer smooth and consistent video in congested networks.
So for a small video conferencing, think Polycom QDX6000 video conference system.
(Date: 18 June 2013; Frida)